DOCSLIB.ORG

Not for Reproduction

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Not for Reproduction BRIGGS & STRATTON CORPORATION ADVANCE PRODUCT SERVICE INFORMATION APSI NO: 73 DATE: 02/11/2011 SUBJECT: PROFESSIONAL SERIES™ ENGINE MODELS: 950 Series (Model 140000) Briggs & Stratton recently introduced the 950 Series OHV vertical shaft engine in the single-cylinder Professional Series product line. Some of the features of this engine include: • Electric ReadyStart® starting system • Commercial quality oval air cleaner element with dual seals allows for increased maintenance intervals • 2 year consumer / 90 day commercial limited warranty This APSI provides basic servicing information in advance of the repair manual currently in development. See the Illustrated Parts List for service part numbers. The following specifi cations, part numbers, and/or procedures are PRELIMINARY and subject to change. Reproduction For Not © Briggs & Stratton Corporation Page 1 of 6 Dimensions BRIGGS & STRATTON CORPORATION 6.204Ŋ 7.142Ŋ (157.58) (181.4) 5.874Ŋ (149.2) 15.806Ŋ (401.47) 9.926Ŋ (252.13) 2.41Ŋ 3.68Ŋ (61.0) (94.0) 13.346Ŋ (338.98) 3.20Ŋ (81.0) 1.56Ŋ 3.02Ŋ (40.0) (77.0) 9.866Ŋ (250.6) 1.94Ŋ (49.0) Reproduction 6.9Ŋ 2.06Ŋ (175.16) (52.0) 2.62Ŋ CLEARANCE HOLE For (267.0) FOR SUMP Not Page 2 of 6 Torque Patterns 1 4 1 4 3 2 2 3 Figure 1 Figure 2 On engines built between date codes 101206xx and 110201xx, a penetrating oil should be applied to the ex- posed threads before backing out the cylinder head screws (Fig 1). Reproduction For Not Loc-patch screw 4 6 2 1 7 5 3 Figure 3 Page 3 of 6 Common Specifications SAE Metric Armature Air Gap .010 - .014 in .25 - .36 mm Bore and Stroke 2.913 x 2.040 in 73.99 x 51.82 mm Crankshaft End Play .002 - .038 in .05 - .97 mm Displacement 13.60 ci 223 cc Exhaust Valve Clearance .004.- .008 in .10 - .20 mm Intake Valve Clearance .004 - .008 in .10 - .20 mm Fuel Tank Capacity .3 gal 1.13 L Oil Capacity 18 - 20 oz .54 - .59 L Spark Plug Gap .020 in .51 mm Spark Plug Torque 180 lb-in 20 Nm Common Service Parts Service Number Air Cleaner Gasket 691894 Air Filter Element 795066 Air Filter Pre-Cleaner 796254 Armature 796499 Carburetor 799479 Carburetor Overhaul Kit 796612 Crankcase Cover Gasket 692232 Cylinder Head Gasket 799496 Electric Starter Reproduction799241 Fuel Cap 692046 Gasket Set 799496 Spark Plug For 692720 Spark Plug Wrench 19576 Valve GasketNot Set 799496 Page 4 of 6 Fastener Torque Specs SAE Metric Notes Air Cleaner Base to 40 lb-in 4.5 Nm - Carburetor Air Cleaner Cover Knob 10 lb-in 1.1 Nm - Alternator 40 lb-in/85 lb-in 4.5 Nm/9.6 Nm Uses 1 screw and 1 stud Armature 85 lb-in 9.6 Nm - Breather Cover 55 lb-in 6.2 Nm - Breather Reed 45 lb-in 5.1 Nm - Carburetor 85 lb-in 9.6 Nm - Casing Clamp 15 lb-in 2 Nm - Connecting Rod 95 lb-in 11 Nm Torque long bolt fi rst Crankcase Cover 110 lb-in 12.4 Nm See Figure 3 for torque sequence Cylinder Head 210 lb-in 23.7 Nm See Figure 1 for torque sequence Electric Starter to Cylinder 85 lb-in 9.6 Nm - Flywheel Guard 65 lb-in 4.5 Nm - Flywheel Nut 60 lb-ft 6.8 Nm - Fuel Tank to Cylinder 85 lb-in 9.6 Nm - Governor Lever Nut 30 lb-in 3.4 Nm - Muffler Bolts 85 lb-in 9.6 Nm - Muffler Guard 25 lb-in 2.3 Nm - Oil Drain Plug 145 lb-in 16.4 Nm - Rewind Nuts 30 lb-in 3.4 Nm - Rocker Arm Studs 50 lb-in 5.6 Nm - Rocker Ball Set Screws 40 lb-in 4.5 Nm - Spark Plug 180 lb-in 20 Nm - Valve Cover 40 lb-in Reproduction4.5 Nm See Figure 2 for torque sequence For Not Page 5 of 6 Reject Dimensions Standard Dims. Reject Dims. SAE Metric SAE Metric Cylinder Mag Bearing .876 in 22.25 mm .878 in 22.30 mm Mag Oil Seal Depth Flush Flush N/A N/A Bore out-of round N/A N/A .0015 in (.04 mm) Cam Bearing .501 in 12.73 mm .502 in 12.75 mm Cylinder Head Intake Valve Seat Angle 46° 46° N/A N/A Valve Stem .247 in 6.29 mm .245 in 6.22 mm Valve Guide .249 in 6.32 mm .251 in 6.38 mm Exhaust Valve Seat Angle 46° 46° N/A N/A Valve Stem .247 in 6.29 mm .245 in 6.22 mm Valve Guide .249 in 6.32 mm .251 in 6.38 mm Crankcase Cover / Sump PTO Bearing 1.065 in 27.05 mm 1.067 in 27.10 mm PTO Oil Seal Depth .200 in .508 mm 5.075 in 128.91 mm Cam Bearing .501 in 12.73 mm .502 in 12.75 mm Crankshaft Crankpin Journal 1.098 in 27.89 mm 1.096 in 27.84 mm Mag Journal .875 in 22.23 mm .873 in 22.17 mm PTO Journal 1.062 in 26.97 mm 1.060 in 26.92 mm Cam Shaft Reproduction Mag-Side Journal .500 in 12.70 mm .499 in 12.67 mm PTO Side Journal .500 in 12.70 mm .499 in 12.67 mm Connecting Rod Crankpin Bearing For1.100 in 27.95 mm 1.101 in 27.97 mm Piston Pin Bearing .491 in 12.47 mm .493 in 12.52 mm Piston Pin DiameterNot .490 in 12.45 mm .489 in 12.42 mm Pin Bore .491 in 12.47 mm .492 in 12.50 mm Piston Rings Ring End Gap - Top .005 - 015 in .13 - .38 mm .025 in .64 mm Ring End Gap - Middle .025 - .035 in .64 - .88 mm .045 in 1.14 mm Ring End Gap - Oil .010 - .030 in .05 - .08 mm .045 in 1.14 mm Ring Land Clearance- Top .002 in .05 mm .005 in .13 mm Ring Land Clearance - .002 in .05 mm .005 in .13 mm Middle Ring Land Clearance - Oil .004 .10 mm .007 in .18 mm Page 6 of 6.
Load more

Recommended publications
  • Mr. Gasket Catalog
    Restore. Restyle. Relive. PRODUCT CATALOG THE MR. GASKET STORY Back in 1964, Joe Hrudka was a drag racer in Northern Ohio who was looking to solve a problem that parts manufacturers had not addressed. Using his own 1957 Chevy drag race car as a test vehicle, he created a line of engine gaskets and fasteners proven to seal and withstand extreme temperatures, pressures and stresses created by high performance engines. This product line that was developed by a drag racer would evolve into a brand of legendary proportions over the next 50 years. Mr. Gasket started with Joe’s ‘57 Chevy and has continued to advance and expand with application coverage and even more new products for muscle cars. Head gaskets, exhaust gaskets and oil pan gaskets were just the beginning. The Mr. Gasket brand develops and distributes a variety of performance parts for your vehicle including: carburetor and fuel accessories, chrome-plated accessories, cooling system accessories, engine components, fuel additives, shifter accessories, specialty tools, suspension and driveline components. Located in Cleveland, Ohio, the Mr. Gasket team continues to design, develop, manufacture and distribute products that bring back the luster and performance that everyone remembers to a variety of auto projects. It may have started with a Chevrolet, but when you are ready to Restore, Restyle and Rebuild your car, Mr. Gasket is who you can trust to have the parts and advice you need to complete your project. Find out about all of the Mr. Gasket products and applications at www.mr-gasket.com www.mr-gasket.com TABLE OF CONTENTS CHEMICALS .......................................................................
    [Show full text]
  • Horizontal Directional Drilling Glossary
    AN HDD GUIDE HORIZONTAL DIRECTIONAL DRILLING GLOSSARY A comprehensive guide to all terms HDD to make sure you can “talk the talk” when on the job. Horizontal directional drilling has been gaining ground for quite some time in the construction industry as the ideal solution for installing pipes and utilities without having to dig up long trenches. At Melfred Borzall, with our 70+ years of experience designing and building groundbreaking drilling solutions, we understand the best way to push the industry forward is to have innovative solutions and increase education about HDD. In our HDD Glossary, we’ve compiled 70 HDD terms along with clear definitions for each term to help expert drillers and new drillers to all talk the same talk and help streamline communication on your next job. HORIZONTAL DIRECTIONAL DRILLING GLOSSARY 2 "TALK THE TALK" HDD GLOSSARY HDD Tooling & Equipment Terms TERM & ALTERNATE DEFINITION DRILL HEAD The lead portion of the drilling process that TERMS Housing, Transmitter houses the transmitter inside to enable the Housing, Head, locator to see where the drill bit is located A ADAPTER Configurable adapter piece that allows drillers to Sonde Housing underground. It comes in different bolt patters Sub, Crossover, and can connect to various types of blades and Tailpiece use various manufacturer’s drill bits and blades with others’ starter rods, housings, and other bits depending upon the ground condition. configurations. Often customizable to fit specific needs of a jobsite tooling setup. DRILL RIG A trenchless machine that installs pipes and Rig, Drill cables by drilling a pilot bore to establish the AIR HAMMER Tool used in HDD designed to bore through location of the underground utility before difficult rock formations using a combination of enlarging the hole if needed and pulling back thrust, pressure and rotation to chip and carve the product.
    [Show full text]
  • Optimizing the Cylinder Running Surface / Piston System of Internal
    THIS DOCUMENT IS PROTECTED BY U.S. AND INTERNATIONAL COPYRIGHT. It may not be reproduced, stored in a retrieval system, distributed or transmitted, in whole or in part, in any form or by any means. Downloaded from SAE International by Peter Ernst, Saturday, September 15, 2012 04:51:57 PM Optimizing the Cylinder Running Surface / Piston 2012-32-0092 System of Internal Combustion Engines Towards 20129092 Published Lower Emissions 10/23/2012 Peter Ernst Sulzer Metco AG (Switzerland) Bernd Distler Sulzer Metco (US) Inc. Copyright © 2012 SAE International doi:10.4271/2012-32-0092 engine and together with the adjustment of the ring package ABSTRACT and the piston a reduction of 35% in LOC was achieved. This Rising fuel prices and more stringent vehicle emissions engine will go into production in September 2012 with requirements are increasing the pressure on engine limited numbers coated in the Sulzer Metco Wohlen facility manufacturers to utilize technologies to increase efficiency in Switzerland, until an engineered coating system is ready on and reduce emissions. As a result, interest in cylinder surface site to start large series production. More details on the coatings has risen considerably in the past few years. Among engine performance and design changes made to the cast these are SUMEBore® coatings from Sulzer Metco. These aluminium block in order to take full advantage of the coating coatings are applied by a powder-based air plasma spray on the cylinder running surfaces is presented in the paper (APS) process. The APS process is very flexible, and can from Zorn et al. [1].
    [Show full text]
  • Swampʼs Diesel Performance Tips to Help Remove and Install Power
    Injectors-Chips-Clutches-Transmissions-Turbos-Engines-Fuel Systems Swampʼs Diesel Performance Competition Parts For Your Diesel 304-A Sand Hill Rd. La Vergne, TN 37086 Tel 615-793-5573 or (866) 595-8724/ Fax 615-793-5572 Email: [email protected] Tips to help remove and install Power Stroke injectors. Removal: After removing the valve covers and the valve cover gaskets, but before removing any injectors, drain the oil rails by removing the drain plugs inside the valve cover. On 94-97 trucks theyʼre just under where the electrical connectors are on the gasket. These plugs are very tight; give them a sharp blow with a hammer and punch to help break them loose, then use a 1/8" Allen wrench. The oil will drain out into the valve train area and from there into the crankcase. Donʼt drop the plugs down the push rod holes! Also remove one of the plugs on top of each oil rail, (beside where the lines from the High Pressure Oil Pump enter) for a vent to allow air to enter so the oil can drain. The plugs are 5/8”. Inspect the plug O-rings and replace if necessary. If the plugs under the covers leak, it will cause a substantial loss of performance. When removing the injectors, oil and fuel from the passages in the cylinder head drains down through the injector bore into the cylinders. If not removed, this can hydro-lock the engine when cranking. There is a ~40cc dish in the center of each piston. Fluid accumulates in it, as well as in the corner on the outside of the piston between the piston top and the cylinder wall, due to the 45* slope of the cylinder bank.
    [Show full text]
  • Electronic Throttle Body
    New ELECTRONIC THROTTLE BODY Because of the exacting standards of our proprietary engineering Product Description processes, all CARDONE 100% New Electronic Throttle Bodies are guaranteed to fit and function like the original. Critical components Features and Benefits such as the housing, throttle plate, position sensors, and throttle Signs of Wear and actuator motor, all conform to the precise dimensions as designed by Troubleshooting the O.E. Manufacturer – meaning each unit is guaranteed to last and perform consistently under all driving conditions. FAQs • Critical components used in manufacturing the electronic throttle body, including the housing, throttle plate, position sensors, throttle actuator motor and throttle plate return spring conform to precise O.E. dimensions. • Each throttle body is tested for all critical functions, including response time and air flow at multiple points, ensuring an optimal fuel/air ratio. • 100% computerized testing of motor, throttle position sensor and articulation ensures reliable and consistent performance. • Each unit is guaranteed to fit and function like the original. Signs of Wear and Troubleshooting • Throttle position sensor codes stored • Consistent reduced engine power • Intermittent reduced engine power • Low idle RPM • Idle RPM hunt or erratic idle Subscribe to receive email notification whenever cardone.com we introduce new products or technical videos. Tech Service: 888-280-8324 Click Electronics Tech Help for technical tips, articles and installation videos. Rev Date:Rev 063015 Date:
    [Show full text]
  • Article 2: F1600/F2000 2021 Technical Specifications
    ARTICLE 2: F1600/F2000 2021 TECHNICAL SPECIFICATIONS ! ARTICLE 2.1: F1600/F2000/Technical Specifications…...........pgs 2-28 Update 4-20-21 — 2.2.25.1 & 2.2.26.1 ARTICLE 2.2: Mazda MZR F2000/Technical Specifications…pgs 29-37 ! ! Article 2.1: F1600/F2000 Technical Specifications - 2021 ____________________________________________________________ These specifications are part of Formula Race Promotions (FRP) Competition Rules and all automobiles shall conform with these Specifications and FRP Pro Racing Rules (PRR). F1600, F2000, is intended to provide competitors and interested manufacturers with the opportunity to compete in purpose built, highly modified open wheel single seat cars. FRP may alter or adjust specifications and require, permit, or restrict certain specific components to equate competitive potential as deemed necessary. In an effort to control shock/damper technology and cost to a level reasonable for competitive racing, any fluid dampers are allowed, with the following restrictions: 1. Maximum of 4 dampers/shock absorbers per vehicle. 2. Dampers must be independent from each other with no interconnectivity. However, data acquisition is permissible, as long as it serves no other purpose. 3. Dampers must be manually adjustable only. 4. Mechatronic valves, G valves, hybrid inerters, inerters and mass dampers are prohibited. 5. Electro/Magnetic shock fluid is prohibited. F1600 and F2000 PREPARATION RULES - 2021 Definitions a. F1600: A formula for single-seat, tubular frame, flat bottom, open-wheel racing cars using standard Ford 1600 “crossflow” pushrod engines, or a Honda Fit 1500 (L15A7) overhead cam engine, with firewall, floor, and safety equipment conforming to the FRP PRR. b. F2000: A formula for single-seat, tubular frame, flat bottom, open-wheel racing cars using the Ford 2 liter single overhead camshaft “NE” series engine, the 1971-74 Pinto/Capri 2 liter single overhead camshaft engine, or the Ford Zetec ZX-3 2 liter dual overhead camshaft engine.
    [Show full text]
  • 1/8” Poppet Valves
    1/8” POPPET VALVES 1/8" POPPET TYPE-VALVES provide a complete line of economical, compact, trouble-free units. They are available in a wide variety of manually operated 2-way, 3-way and 4-way models. The valve bodies are corrosion resistant aluminum. All other parts are treated or plated to provide long service and resist corrosion. The poppet seal is Buna-N. Air flow capacity is 25 Cu. Ft. free air per minute at 100 P.S.I. Maximum operating pressure is 150 P.S.I. Maximum temperature range is 250°F. V2 TWO-WAY BUTTON VALVE Depressing button will permit flow. May be mounted on any one of three sides. V23 THREE-WAY BUTTON VALVE Depressing button will permit flow. Releasing button will permit exhaust flow through button stem. V2H TWO WAY TWO BUTTON VALVE One common inlet Two separate outlets. THREE-WAY VALVES During operation, air will not escape to atmosphere. Lever bearings are of hardened steel for long service. The utilizable exhaust port will accept our Bleed Control Valve PTV305 for controlling the exhaust. Can be mounted on either of two sides. LEVER OPERATED V3NC THREE-WAY NORMALLY CLOSED V3NO THREE-WAY NORMALLY OPEN HAND OPERATED HV3NC THREE-WAY NORMALLY CLOSED HV3NO THREE-WAY NORMALLY OPEN CAM OPERATED CV3NC THREE-WAY NORMALLY CLOSED CV3NO THREE-WAY NORMALLY OPEN FOOT OPERATED FT300NC THREE-WAY NORMALLY CLOSED FT300NO THREE-WAY NORMALLY OPEN PILOT TIMER VALVE PTV3NC THREE-WAY NORMALLY CLOSED PTV3NO THREE-WAY NORMALLY OPEN Valve consists of a diaphragm pilot chamber which operates the 3-way valve section.
    [Show full text]
  • Wideband O2 Sensors and Air/Fuel (A/F) Sensors
    Home, Auto Repair Library, Auto Parts, Accessories, Tools, Manuals & Books, Car BLOG, Links, Index Wideband O2 Sensors and Air/Fuel (A/F) Sensors by Larry Carley copyright 2019 AA1Car.com Wideband Oxygen sensors (which may also be called Wide Range Air Fuel (WRAF) sensors) and Air/Fuel (A/F) Sensors, are replacing conventional oxygen sensors in many late model vehicles. A wideband O2 sensor or A/F sensor is essentially a smarter oxygen sensor with some additional internal circuitry that allows it to precisely determine the exact air/fuel ratio of the engine. Like an ordinary oxygen sensor, it reacts to changing oxygen levels in the exhaust. But unlike an ordinary oxygen sensor, the output signal from a wideband O2 sensor or A/F sensor does not change abruptly when the air/fuel mixture goes rich or lean. This makes it better suited to today's low emission engines, and also for tuning performance engines. Oxygen Sensor Outputs An ordinary oxygen sensor is really more of a rich/lean indicator because its output voltage jumps up to 0.8 to 0.9 volts when the air/fuel mixture is rich, and drops to 0.3 volts or less when the air/fuel mixture is lean. By comparison, a wideband O2 sensor or A/F sensor provides a gradually changing current signal that corresponds to the exact air/fuel ratio. Another difference is that the sensor's output voltage is converted by its internal circuitry into a variable current signal that can travel in one of two directions (positive or negative).
    [Show full text]
  • Your Vacuum Gauge Is Your Friend
    WRENCHIN’ @ RANDOM YOUR VACUUM GAUGE IS YOUR FRIEND Two Essential Diagnostic Tools No Hot Rodder Should Be Without, and How to Use Them Marlan Davis hI’ve been answering read- ers’ Pit Stop tech questions for decades, explaining how to improve performance, troubleshoot pesky problems, or recommend a better combina- tion. Yet rarely do any of these problem- solving requests include information on the problem combo’s vacuum reading. That’s unfor- tunate, as [Above: Two essential diagnostic tools no hot rodder should be with- vacuum out, from left: a Mityvac handheld can tell vacuum pump for testing vacuum you a heck of a lot about an consumers (some models will even engine’s condition, without the aid in brake bleeding), and a large, easy-to-read vacuum gauge like need to invest in a bunch of this one by OTC (this model also high-tech diagnostic tools. includes a pressure gauge for even So what’s the deal on more test possibilities). vacuum? Consider an internal- [Left: Knowing how to use a combustion engine as basically vacuum gauge is the key to a giant air pump that operates diagnosing many performance under the principles of pres- problems. It aids in tuning your sure differential. The difference motor to the tip of the pyramid. It even helps diagnose problems not between normal atmospheric seemingly engine-related, such as pressure (14.7 psi at sea level a weak power-brake system. Add at standard temperature and one to your toolbox today. pressure) and how hard this “pump” sucks under various engine-management system).
    [Show full text]
  • Ml7,™ the Fp Diesel® 7-Layer Head Gasket That Seals Rebuilt Engines Better!
    CM 11-1001 Technical Bulletin ML7,™ THE FP DIESEL® 7-L AYER HEAD GASKET THAT SEALS REBUILT ENGINES BETTER! ™ Sealing the most demanding area in a commercial engine – it takes today’s FP DIESEL SMART TIP Cummins® utilizes several types of valve stem seals most advanced gasket design. on the 24 valve ISB engines, depending on the FP Diesel® has introduced a highly advanced multi-layer-core head gasket fuel system. Please review the references below to assist you in ordering the correct valve stem seals. technology that will bring significantly enhanced combustion and fluid sealing capabilities and temperature resistance to a broad range For 1998-2002 engines using the VP44 of high-output commercial diesel engines: The ML7 head gasket. Injection Pump, with serial number 46239408 and below use: As commercial engine rebuilders look for the latest and best engine sealing solutions, FP Diesel’s ML7 gasket provides a new generation of head gaskets. BODY CONSTRUCTION The ML7 head gasket’s 7-layer construction features an advanced graphite material INTAKE VALVE STEM SEAL over a thicker, perforated stainless steel Yellow Viton® Center core for significantly increased rigidity. Part No. FP-3942989 The key to determining the thickness of the gasket body, armor and wire is achieving optimal load balance among the components and materials. The result is a much more solid and durable part. EXPANDED LOW-CARBON STEEL WIRE GRAPHITE FACING EXHAUST VALVE STEM SEAL Copper flash-coated low-carbon steel (LCS) The ML7’s resilient, conformable Green Viton® Center wire ring offers the ability to absorb stress graphite facing provides excellent Part No.
    [Show full text]
  • Pro Copper HG Inst
    Installation Instructions for: Pro Copper (”P” Prex) Head Gaskets For best results SCE Pro Copper Series (P prefix) Copper Head Gaskets should be used with sealant (if liquid cooled use Copper Coat, SCE p/n G1612) and o-ringed block or heads. 1. Before installing the gasket, perform a visual check to insure that no damage occurred during shipping, the gasket(s) should be flat and free of scratches. 2. SCE Copper head gaskets are annealed in a vacuum oven after punching to provide soft malleable gaskets which are ready to use, do not use a torch to soften the gaskets. 3. Pro Copper series head gaskets (P prefix) require the use of a sealant for coolant and oil passages and o-ring combustion seals installed in the head or block. (P/N 31542 o-ring kit). 4. If you are installing o-rings make sure that the o-ring diameter and location accommodates both bore opening and combustion chamber shape. This will determine the minimum inside diameter of the o-ring. 5. If the combustion chamber or bore is so large that o-rings must be placed less than .100” apart between cylinders, it is advisable to use a “figure 8” pattern for o-rings (see figure #2). This allows for more even clamp load over the entire head surface. 6. Recommended o-ring protrusion is not more than 25% of gasket thickness. Example: Gasket thickness .043”, o-ring height is .008” to .010”. Gasket thickness .050”, o-ring height is .010” to .012”. NOTE: For extreme boost or heavy nitrous an O-ring-Receiver-Groove arrangement is recom- mended (see figure #3).
    [Show full text]
  • HEAD GASKET Hot Engine Operation
    TO INSURE PROPER ENGINE OPERATION WE RECOMMEND THE FOLLOWING • Bleed cooling system, prior to engine start up. It may be necessary to raise the front of the vehicle to com- pletely bleed the air from the cooling system. • Use OEM recommended spark plugs, with the correct heat range. • Vacuum leaks cause lean air/fuel ratios and HEAD GASKET hot engine operation. • Check vacuum hoses. •Check Peak efficiency of the cooling system is essential to for proper operation of the EGR valve. •Check O2 Sen- ensure a successful repair of this engine. sor, coolant entering the combustion chamber from a cracked cylinder block/heads or a leaking head gas- Thoroughly inspect the radiator and heater core for corrosion. ket can cause the O2 sensor to become inoperative, Test the radiator and heater core for coolant flow rate. replace if necessary. Check for bent or damaged fins. Radiator performance is deteriorated by reduced flow from ANY CYLINDER HEAD GASKET INSTALLATION corrosion and contaminates. Radiator performance is also SHOULD INCLUDE THE FOLLOWING CHECKS: deteriorated by reduced heat transfer that can occur with • Radiator flow and corrosion condition. •All coolant hoses minor corrosion and slight loss of flow. To ensure proper for deterioration •Thermostat operation •Fan belt tension engine performance, replacement of the radiator and heater •Water pump flow •Radiator thermostatic fan switch op- core is recommended using OEM equivalent components eration •Antifreeze mixture •Radiator cap that maintains only. rated pressure •Coolant reservoir fill level •Ignition timing Replace O-rings on the coolant supply pipes that connect to setting •Emission controls •Vacuum leaks •Restriction in the water pump.
    [Show full text]