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96 850 n/a clashing lifters after storage: Seafoam?

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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JimBee
Posts: 1915
Joined: 9 December 2008
Year and Model: 93 and 2 96 850's
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96 850 n/a clashing lifters after storage: Seafoam?

Post by JimBee »

Last fall I parked the 855 for winter, as usual. After a few maintenance updates just cranked it up and the lifter clash has me worried.

I let it idle until it warmed up. The clash declined a bit but after 10 minutes is still pretty noisy.

I didn't change the oil b/c it didn't look too bad and is full synthetic w/o too many miles on it. But I'm wondering if some sludge might have settled around the pickup tube.

Does this call for Sea Foam or some other solvent?

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