Installing Piston And Connecting Rod - Porsche 928 Workshop Manual

!I 2 8 Engine. Crankshaft. Pistons
13
INSTALLING PISTON ANT) CONNECTING ROD
installed Position of Connecting Rods
The &urow side with a small chamfer must face
neighboring connecting rod; wide side with large
chamfer is aligned with crank.
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htake sure that Diston is wxitioned correctlv
when pre-assembling the connecting rod and
piston. Piston must be installed that rounded
surfaces of valve pockets face down.
Installing Piston with Connecting Rod
1. Install both upperopiston rings that their gaps
are offset by 120 .
2. Install three-piece oil scraper ring as follows.
Spring offset to steel band by approx. 45' and
steel band offset to steel band by at least 90'.
3. Lubricate piston and cylinder bore slightly.
4. Apply piston ring compressor.
5. Install piston with connecting rod in cylinder
bore and knock into cylinder by applying light
knocks from hammer's handle and applying
firm pressure to edge of compressor.
Printed in Germany
Installing Piston and Connecting Rod
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