Page 7 of 168

( 
70019401960 Specifications 
Section 
0 General 
E 
A 
c B 
132410 
Dime ns io n s 7401760 780 944 /964  945/965 
mm in mm in mm in mm in 
A. Wheelbase .............................. . ...... .  2770 109 2770  109  2770 
109  2770 109 
B. Overall 
length ................................... .  4785  188.4  4794 
189 4871 191.8  4844 190.7 
C. Overall width .................................... . 
1760 
69.3 
1770  69.7 
1750  68.9 1750  68.9 
D. Track, 
front ..................................... .  14701
) 57.9  1470  57.9 1471 57.9 1471 57.9 
rear 
................. ..................... .  14602
) 57.5  14602
) 57.5  1460  57.5 1460  57.5 
E
. Overall height3
) ...... .........................•.•. 1410  55.5 1400 55.1 1410 55.5 1440  56.7 
1) _ Dec. 1984: wheelbase = 1460 mm. 2) 760/960 4-door, 780 1988-Track 
rear 1520 mm 59.9 in 3) Depending on type  of tyre. 
Weight 740 
760 780 
Approximate weight of car  without  occupants, fuWfuel tank 1270-1460 kg 1330-1500 kg 1500 kg 
(2798-3120Ib)  (2930-33051b) (3305 Ib) 
944 945 964 965 
1327-1463  1363-1496  1484-1576 1438-1527 
,-(2924-3223Ib)  (3003-3296Ib) (3270-3472lb) (3168-3364Ib) 
The weight  varies depending  on variant  and equipment 
Fuel tank .................................... . 
760/780  -1987,740,  standard, 944/945/965 ........... . 
increased-capacity 
............... . 
760 4 -door .,  780  1988-,  964 
Litres 
60 
82 
80 
US. gal 
15.8 
21.6 
21.1 
5 
I  
     
        
        Page 73 of 168

( 
70019401960 Specifications 
Section 
2  B 28 Engine 
V alve s yste m 
Valve clearance 
Inlet  valves,  cold engine  ................................. .... . 
warm  engine  ...
................................. : 
Exhaust valves,  cold engine ..... ................ .............  . 
warm  engine 
................................. . 
V alves (sizes in mm) 
0.10-0.15 mm 
0.15-0.20 mm 
0 .25-0.30 mm 
0.30-0.35 mm 
0 .004-0.006 in 
0.006-0.008 in 
0.010-0.012 in 
0.012-0.014 in 
7,975-7,990  7,965-7,980 
44 
Valve seats 
Seat for inlet 
valve  Inlet 
valve 
Venturi  seat: 15° and 60° angles can be 
used to reduce  seat width. 
Exhaust valve 
, 
I:i~~' 13 0021 
Seat for  exhaust valve 
When replacing  valve seats: the interference  between the valve seat and its bore in' the cylinder head shall be 0 .070-0.134 mm (0.0028-0.0053  in), i.e. valve seat  diameter  must be 0.070-0.134 mm greater than the diameter of the bore in the cylinder head. 
Valve seats  are available in three oversizes . 
Valve guide s 
Inner diameter  ................. ............................. . 
Press -in measurement  to cylinder head contact  surface  against 
block: 
inlet 
............................................... ...... . 
exhaust  ..
............... ................................. . 
Clearance in cylinder head  ............. ......................  . 
8 .000-8.022 mm 
39.5-40.5 mm 
36.9-37.9 mm 
0.052-0.095 mm 
0 .3149-0.3158 in 
1.5551-1 .5944 in 
1.4527-1.4921 in 
0.0020-0. 0037 in 
129851 
71  
     
        
        Page 101 of 168

( 
Cylinder block 
Bore 
Standard  (marked C) 
........................... ....... mm (in) 
(marked 
D) ........... ....................... mm  (in) 
(marked 
E) ..................................  mm  (in) 
(marked 
G) ................... . .............. mm  (in) 
Rebore  if wear  exceeds 0.1 mm  and oil consumption is abnormally  high. 
Pistons 
Piston  diameter 
Diameter  to be  measured  at right 
angles to gudgeon  pin and 
16  mm  from  bottom  of piston. 
Standard  (marked C) 
.................................. mm  (in) 
(marked 
D): ................................ . mm  (in) 
(marked 
E) .. , ........................ .......  mm  (in) 
(marked 
G) ............ ...................... mm  (in) 
Piston  weight 
.......................................... g  (oz) 
Max  weight  difference  between pistons in same  engine 
......... g 
Piston  rings 
Axial  clearance in piston  groove  ............................ mm 
in 
Ring gap (measured  in cylinder, bore 83.00 mm) ............. mm ? in 
Gudgeon (P iston ) pins 
Fit  in connecting  rod ......................................... . 
in  piston 
................................................  . 
Valve system 
Hydraulic 
Valves 
Length inlet ...... .................................... mm  (in) 
exhaust 
.............. ......................... mm  (in) 
Matching  surface 
angle .................................. .... 0 
Edge  height,  new valve ................................ mm (in) 
min  after  machining  .
...................... mm  (in) 
Max  machining  of 
valve stem ................ ........... mm  (in) 
Valve  Seats 
Diameter  standard .................................... mm  (in) 
oversize 
.... ................................ mm  (in) 
Matching  surface 
angle .......................... ............ 0 
Reduction angle, upper ...................................... 0 
lower ................. ....... .............. 0 
Width ...................................... ... ...... mm  (in) 
70019401960 Specifications 
Section 2 B 6304 Engine 
83.00-83.01 
83.01-83 .02 
83.02-83.03 
83.04-83.05 
82.98--82.99 
82.99--83.00 
83.00-83.01 
83.02 -83.03 
350 
±  5 
10 
(3.2677-3 .2681 ) 
(3.2681-3.2685) 
(3.2685-3 .2689) 
(3.2693-3.2697) 
(3.2669--3.26 7
3) 
(3.2673-3.2677) 
(3.2677-3.
2681 ) 
(3.2685-3.2689) 
(12.5  ± 
0.2) 
(0.4) 
Upper 
camp.  rings 
0.05-0.085 
0.0020-0.0033 
0.2-0.4 
0.008--0.016 
Lower 
camp.  rings 
0.03-0.065 
0.0012-0.0026 
0.2-0.4 
0.008--0.016 
Oil scraper 
ring s 
0.02-0.055 
0.0008 -0.0022 
0.25-0.5 
0.009--0 .020 
Light  thumb  pressure (close running  fit) 
Thumb  pressure  (push fit) 
104.05±0.18 
103.30±0.18 
45.5 
1.5 
1.2 
0 .4  (4
.
096±0.007) 
(4.067±0. 007) 
(0.059) 
(0.047) 
(0.016) 
inl et exhaust 
32.61  (1.284)  28.61 (1.126) 
33.11 
(1.304) 29 .11 (1.146) 
45.25  45.25 
20.25 15.25 
60.25 60.25 
1.4-1.8 (0.055-0.071) 1.8--2.2 (0.071-0.087) 
99 
Itl 
It 
Itl 
.... 1 '11 Itl ... Itl