Morris Minor 1000
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Supplement to "Motor Trader," I October, /969 Mot:or Trader SERVICE DATA No. 484 Morris Minor 1000 Manufacturers: BLMC, Cowley, Oxford All rights reserved. This Service Data Sheet is C011Jpiled by the technical staff of Motor Trader, from information made available by the vehicle manufacturers (extracted from BMC Service Manual Part No. AKO 530 M) and from our own experience. It is the copyright of this journal, and may not be reproduced, in whole or in part, without per• mission. While care is taken to ensure ac.curacy we do not accept responsibility for errors or omlssionlp. LMOST twelve years have A elapsed since an article in this series featured the Morris Minor car· During that time although the body shape has remained almost un altered, there have been many changes to the mechanical ·speci ficati_o,n. Most of these have been of a detailed nature rather than those of a radical departure from the original conception and the cumulative effect Overall lines of the car have changed little over the years, but latest models now h:ive the large (lashing signals front of all these is to render the in and rear formation which we published in 1957 no longer suitable for use with specific repair jobs are marketed drain coolant and oil from both assembly. Manoeuvre unit sideways the current Minor models, hence we through the BLMC dealer network engine and gearbox. Disconnect all to clear right-hand mounting rub have revised the former work and a list of those considered the pipes, wires and controls to and ber: studs, then raise unit, moving completely. more essential is set out on p. iii. from engine and heater connec forwai:ds and out d ,-ar. Replace Mechanical layout of the car Many of these tools will be found tions. Remove carburettor and air ment 1s a reversal of dismantling remains as before, a four-cylindered to have application to other ve cleaner and disconnect exhaust process noting that mounting rub engine driving a four-speed synchro hicles in the BLMC range and a pipe at manifold flange. Remove ber� should I!Ot be tightened ful}·• mesh gearbox through a single dry comparison of the tools listed in nuts, bolts and washers to release until mountmgs are supportini; plate clutch. Drive to the rear road this data sheet and other similar radiator mask, also grille assembly complete weight of power unit. wheels is taken through a single stage data sheets will show the extent of attached to wings and frame (three open tubular propeller shaft to the this facility. 2BA nuts beneath wing). Discon Crankshaft hypoid bevel reduction gear con Threads and hexagons are, in the nect sidelamp leads at snap con tained within the three-quarter float main, of the Unified thread series, nectors and lift out radiator/grille Three main bearings, thin-wall ing rear axle which is suspended pattern and form. Certain pro assembly. Disconnect and remove steel-backed, copper/lead-lined loc upon semi-elliptic leaf springs. Sus prietary parts have thread forms of clutch operating rods and speedo ated by tabs. End-float controlled pension at the front is the familiar other series; but in any event, nuts, cable at gearbox end. by split thrust washers recessed torsion bar layout, and rack and screws, bolts, etc., should always be Remove two setbolts and spring either side of centre main bearing pinion steering is still used. replaced in the locations from which washers securing relay bracket to and retained by tabs in cap. Fit Identification of vehicles follows they were dismantled, care being main frame. Take out packing with oil grooves to crankshaft, no accustomed BMC practice and is by taken to renew all those components plate and bushes. Preserve washer hand fitting permissible. car and engine numbers .. The car which have stretched or damaged fitted between inner bush and lever. Main bearings cannot be changed number is stamped on a plate which threads. Remove thrust spring from oppo with engine irr place, as rear cap is secured to the right-hand side of site end of lever. Take weight of cannot be detached without re the dash panel beneath the bonnet unit with suitable tackle, take up moval of rear engine plate, but and this number, together with all ENGINE front carpet and felt and remove thrust washers can be renewed in prefixes and suffixes, should be exposed gearbox cover plate. situ. Oil intake strainer and suction quoted when in correspondence with Mounting Remove the three set bolts tube assembly (union screwed into the vehicle manufacturers, or when At front, bonded rubber blocks and take out gear-lever a�sembly. bottom face of crankcase) must be ordering spare parts. The engine are bolted to lugs on front engine Uncouple engine steady cable. Take . removed completely before centre number is. ,stamped either upon a plate and to brackets on body ex off nuts (spring and flat washers) bearing cap can be removed. metal plate ,which is secured to the tensions. At rear, gearbox extension securing rear mounting rubbers to Flywheel, with shrunk-on starter right-hand side of the cylinder block housing rubber-bonded brackets are cross-member. Remove four bolts ring gear, spigoted on rear flange of or on the block casting itself. Gear bolted to mountings on cross securing cross-member to frame crankshaft and retained by four box numbers are stamped on the member. All bolts should be tightened (forward one L/H side secures vehicle equally spaced set-screws. Oil-im gearcasing forward of the change fully. earth cable). Lower rear of powe1 unit pregnated spigot bearing bush speed lever turret; reai;: axle numbers until cross-member can be removed. pressed into end of shaft. are stamped on the front of the left Removal Take off four nuts, bolts and spring Timing sprocket and pulley hub, hand axle tube adjacent to the spring washers securing front left-hand with oil thrower between, pressed on seat, and body numbers are to be Engine may be withdrawn with or engine mounting bracket to tie front end of crankshaft, sharing found stamped on a plate which is without gearbox, but when engine/ plate. Remove nuts and washers special flat Woodruff key, and re welded to the left-hand tie plate gearbox are removed as a unit, which secure front mounting rubbers tained by hand starter dog setscrew. between the radiator and the wing radiator and grille must be re to each side of mounting plate. Sprocket fits with longer boss to valance. moved. To remove with gearbox: Raise power unit, and remove left rear, with shims behind for align Special tools for use in general and secure bonnet in fully open position, hand mounting bracket and rubber ment. Pulley hub passes through felt ii MORRIS MINOR 1000 Supplement to "M tor Trader, ,, 1 0ctober, 1969 parts of the en_gme, showing th fixed and ma ng components i� relative order �f assembly I Supplemell/ to "Motor Trader," I October, 1969 MORRIS MINOR 1000 iii sealing ring in timing cover. Tighten Top compression ring plain in taken off after removal of split pin, starter dog setscrew until, with ternally chamfered and chrome Valves plain washer and double-coil spring crankshaft at T.D.C. 1 and 4, jaws plated, second and third rings Overhead, not interchangeable· washer. are at "20 past 10". taper faced and must be fitted with Inlet larger than exhaust. Split cone Rear main bearing cap forms sides marked "TOP" upwards. Oil cotter fixing, single springs. Rubber lower half of oil collector trough control ring, fitted in lowest groove, packing rings on valve stems below round return thread on shaft. is Well worthy Duaflex 61. cellars. Lubrication Upper half detachable, retained by Big ends will pass through bores, Valve guides plain, no shoulder, Hobourn-Eaton eccentric rotor three setscrews. If detached, upper but pistons will not pass crank Press in until they project -½tin from pump spigoted in recess in rear face half must be refitted so that it butts throws. Remove and assemble spot face of spring seat. of cylinder block and driven by pin on cap after cap has been tightened through top. and slotted shaft from rear end of fully. can1shaft. Latest type unit identified Tappets and Rockers by pump manufacturers name and Plain barrel tappets sliding directly patent number cast on outer flange Connecting Rods Camshaft in crankcase. Access through open of cover instead of appearing around Big ends thin-wall, steel-backed, Single-roller endless-chain drive. ing in side. centre of cover. copper/lead shells, lead-tin plated Camshaft sprocket spigoted on cam Bushed rockers, all interchange Engine must be removed from car surface, located by tabs. ·No hand shaft, keyed with Woodruff key able, on shaft carried in four pillars. for removal of pump. Cylindrical fitting permissible. Rods split diagon and retained by nut. No alternative Two different types used, either gauze intake strainer in sump, ally, cap and rod stamped on same fitting for valve timing. Sprockets forged or pressed steel. Latter type carried on bracket between centre side. must be removed and assembled MAY NOT be re-bushed. Shaft locat and rear main bearing caps and Big ends are offset. Fit Nos. 1 and together. ed by grubscrew in No. I pillar, which flange-bolted to suction pipe, upper 3 with larger boss to rear, 2 to 4 to Camshaft runs in three bearings in is drilled for oil feed through end of which is retained by union front. Oil bleed hole on longer side crankcase. Bearings have white metal drimngs in head and cylinder block.