Fiat 127 Service Manual

Manual is about: 1049 cm3

Summary of 127

  • Page 1

    Fiat 127 1049 cm 3 opis části servisního manuálu.

  • Page 2: Supplement

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 2/34 supplement contents introduction ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1 specifications ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ......

  • Page 3

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 3/34 1. Introduction since its first introduction in 1971 the fiat 127 has undergone a continuing programme of improvements concerned mainly with styling and trim alterations. However, in 1977 a new model range was introduced whic...

  • Page 4

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 4/34 2. Specifications capacities (1049 cc models) engine oil (including filter change) l, c and cl ... ... ... ... ... ... ... ... … 5.5 pints (3.1 litres) sport ... ... ... ... ... ... ... ... ... 7.7 pints (4.4 litres) coolant ...

  • Page 5

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 5/34 big-end bearing shell undersize range 0.01; 0.02; 0.03; 0.04 0.254; 0,508; 0.762; 1.016 gudgeon pin interference fit in small-end: c, l and cl 0.0004 to 0.0017 0.01 to 0.042 sport 0.0004 to 0.0006 0.01 to 0.016 crankpin to be...

  • Page 6

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 6/34 crankshaft inches mm main bearing journal diameter 1.8972 to 1.898 48.189 to 48.209 standard main bearing shell thickness 0.0721 to 0.0726 1.831 to 1.845 main bearing shell undersize range 0.01; 0.02; 0.03; 0.04 0.254; 0.508;...

  • Page 7

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 7/34 camshaft bearing bore diameter in head: valve gear end 1.1807 to 1.1817 29.990 to 30.015 centre 1.0648 to 1.0657 27.045 to 27.070 flywheel end 0.9860 to 0.9870 25.045 to 25.070 camshaft journals fit clearance 0.0012 to 0.0028...

  • Page 8

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 8/34 air correction jet 0.0728 in (1.85 mm) slow running jet 0.0177 in (0.45 mm) emulsion tube type f74 accelerator pump jet 0.0157 in (0.40 mm) needle valve seat 0.0591 in (1.50 mm) accelerator pump output (10 strokes) 2 to 3 cm ...

  • Page 9

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 9/34 maximum run-out of driven plate linings 0.2 mm (0.008 in) travel of release flange, corresponding to a pressure plate displacement of not less than 0.067 in ~1.7 mm) 8.5 mm (0.3346 in) transmission synchromesh 1st and 2nd, bo...

  • Page 10

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 10/34 lamps headlamps (c, l and cl) headlamps (sport) brake and rear light turn indicators reversing lights parking lights number plate courtesy light boot light turn repeaters cigar lighter light instrument panel ignition warning...

  • Page 11

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 11/34 ignition distributor clamp nut 11 1.5 oil pump to crankcase bolts 13 1.8 cylinder head outlet pipe bolt 16 2.2 water pump/alternator drive pulley nut 101 14 alternator bracket to crankcase bolt 20 2.8 alternator to lower bra...

  • Page 12

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 12/34 3. Engine 1049 cc engine - general 1 this engine is of overhead camshaft design, using shims for valve clearance adjustment. The crankshaft is supported in five main bearings, the centre one incorporating the thrust washers ...

  • Page 13

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 13/34 13.1. 1049 cc engine, longitudinal section (sec.3).

  • Page 14

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 14/34 13.2. 1049 cc engine, cross section (sec.3) (the engine is installed inclined 6°rearwards).

  • Page 15

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 15/34 3.8 the half thrust washers are fitted each side of the centre bearing 3.9 oil the bearings and crankshaft journals… 3.10 … and then fit the crankshaft into the crankcase 12 refit the main bearing cap bolts and screw them up...

  • Page 16

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 16/34 3.11a fit the bearing shell ti the main bearing caps… 3.11b …and then fit caps to the crankcase after oiling the shells 3.11c ensure that each cap is the right way round in its own location with the one with four marks at th...

  • Page 17

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 17/34 3.18 the valve depressions in the piston are adjecent to the cylinder head studs in the block 3.20 torque tighten the big-end cap nuts 3.22a firts fit outer rotor to the oil pump body… 3.22b …followed by the inner rotor 3.23...

  • Page 18

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 18/34 3.25 …and the inner to outer rotor clearance 3.27a fit the oil pump pressure relief valve plunger and spring… 3.27b …followed by the retainer plate and circlip 3.28 refit the pump lower half body 3.29 fit the oil pump to the...

  • Page 19

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 19/34 3.32 fitting the crankshaft seal and carrier at flywheel and… 3.33 …and at the timing cover end 3.34 the timing indicator bracket is located behind the two top bolts of the seal carrier 3.36 fit the sump to the crankcase on ...

  • Page 20

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 20/34 3.39 fitting the auxiliary shaft… 3.40 …and its seal and carrier 3.42 this face of the pulley fits towards the shaft 3.43 fit the belt tensioner bracket a new gasket to the block … 3.44 …followed by the spring-loaded plunger...

  • Page 21

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 21/34 3.46 the bevelled washer is fitted bevel outwards and is followed by… 3.47 …the crankshaft toothed pulley 3.48a valve guide oil seal 3.48b inserting a valve followed by… 3.48c …the lower spring seat and springs… 3.48d …and u...

  • Page 22

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 22/34 3.48e a magnet is useful for refitting the split collets 3.48f after assembly a sharp tap on the valve stem will help to bed the parts in 3.49a use a small pointed tool to … 3.49b …prise out the vlave clearance adjusting shi...

  • Page 23

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 23/34 32 carefully ease the lip of the seal onto the spigot and secure the carrier with the bolts and washers (photo). 33 similarly clean the crankshaft at the timing belt end and fit the seal and carrier. Retain by the two bottom...

  • Page 24

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 24/34 progressively until the bearing halves meet. 53 oil the camshaft seal and carefully fit it with its carrier and a new gasket to the cylinder head (photo). 54 position the drivebelt guard backplate over the camshaft seal carr...

  • Page 25

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 25/34 3.50 position the camshaft in the cylinder head … 3.51 …and fit the half bearings and bridge plates 3.53 fit the camshaft seal in its carrier to the cylinder head. 3.54 …followed by the drive belt quard backplate 3.56 fit th...

  • Page 26

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 26/34 3.68 fitting the distributor 3.70 distributor clamp bolt extension length and the torque wrench length and is calculated by using the formula: where a is the specified torque loading (ibf ft or kgf m), b is the torque to be ...

  • Page 27

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 27/34 3.60 the cylinder head gasket is fitted alto upwards 3.61 lower the cylinder head onto the block 3.62a tighten the cylinder head bolts and nuts to the specified torque 3.62b these cylinder head nuts might be difficult to tor...

  • Page 28

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 28/34 3.78 setting the belt tensioner 3.84 checking a valve clearance 3.87 made-up tool for depressing tappet buckets when initially inserted; then reinsert it into the engine. Ideally the contact points should be just breaking wi...

  • Page 29

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 29/34 78 slacken the tensioner bolts to tension the belt and retighten the bolts (photo). 79 turn the engine over for two complete revolutions to even out belt tension. Then again slacken the tensioner bolts to let the tensioner t...

  • Page 30

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 30/34 3.88a with the tappet depressed… 3.88b …the shim can be removed 3.91 fit the camshaft cover with a new gasket 3.93a the two-pieces gasket for manifold joint… 3.93b …and the manifolds fitted 4.1 weber 32 icev carburettor.

  • Page 31

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 31/34 fig. 13.4 engine mounting (right-hand side) (sec.3) fig. 13.5. Engine mounting (left-hand side) (sec.3) 1 – mounting 2 – crankcase 1 – mounting to chassis bolts 2 – mounting 3 – mounting to transmission bracket both the inle...

  • Page 32

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 32/34 altering the throttle speed screw. 16 on earlier carburettors, or if new components have been fitted to carburettors having a tamperproof screw, then the slow-running and mixture can be altered, but only if an exhaust gas an...

  • Page 33

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 33/34 is an economical proposition if the original one has seen service to a high mileage. Very often a generous allowance is made for the old unit. 22 to check the float setting, hold the carburettor cover vertically with the flo...

  • Page 34

    Fiat 127 internet fan club (http://fiat127.Okruhy.Cz) fiat 127 - 1050 34/34 …….. Nedokončeno.