Removal And Installation Of Piston Pins; Installation Of New Gasket In Valve Cover; Checking The Connecting Rod - Saab V4 Service Manual

s
1241
INSTAllATION OF NEW GASKET IN VALVE COVEI
NOTE
Before the valve covers of the cylinder heads ore
refitted, the lubrication of the rocker shaft must
be checked with the engine running.
21. Reinstall the distributor cap and attach the
cables.
22. Reinstall the carburetor, together with its
23. Reconnect the fuel and vacuum lines.
NOTE
Retighten the cylinder head bolts and adjust the
valves when the car has been driven for about
1.200 miles (2.000 km).
R
PISTON
NS
F
The piston and piston pin comprises a complete unit and
the two must be replaced together. The piston pin bore
and the piston pin are colour coded according to class
216-8
and must agree. The colour marking is located at the bot·
tom of the and on the outer of the
The piston
is shrunk into the small end of the con·
rod. lt is therefore of utmost to in·
stall the pin and in the small end
of the rod while it is still hot since the
tion of the piston
necting rod has cooled.
cannot be altered once the con·
1. Using a press, press the piston pin out of the piston
(use a drift with a diameter a few millimeters smaller).
Scrap the piston and piston pin.
2. Measure the connecting rod by means of a gauge and
a surface plate. See the illustration for maximum per·
missible deviation.
s
5284
CHECKING THE CONNECTING ROD
Installation
1. Place the piston on a flat surface (3/4-1 in./20 - 25
mm wide) so that the outer surface in the rectangular
recess at the piston pin end rests on the surface (see
the markings in the illustration).
Oct. 1975