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P80 engine cylinder bore marking

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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jreed
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Re: P80 engine cylinder bore marking

Post by jreed »

Can offer this info up to the group from Chapter 2B of the Book:
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Screen Shot 2023-06-11 at 08.14.05.png (633.39 KiB) Viewed 180 times
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94

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abscate
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Post by abscate »

Awesome. Will correct info up top. The internet takes another step closer to accuracy
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foggydogg
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Post by foggydogg »

Correct, ring end-gap is filed to fit each cylinder bore and application. The gap spec is different for NA v. forced induction. Internal reciprocating mass balancing is quite the Black Art; I was hands-on at a machine shop that specialized in NASCAR engine prep. The job is pretty labo(u)r intensive, and expensive if charged at market price.
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Nikolaech
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