Compression Pressure

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Nov 11, 2004 | 03:33 PM

R129

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Joined: Nov 2004

Posts: 61

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Compression Pressure

Does anybody know the normal cylinder compression pressure for an R129 5.0L V8 in psi?

Nov 11, 2004 | 09:37 PM

sleepwalker

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Joined: Apr 2004

Posts: 7,050

From: Philippine Islands

RE: Compression Pressure

tolerance when new: 13.5 to 15.5 bar.

limit value is: 8.5 bar

permissible difference between individual cylinders: 1.5 bar

now, just convert it to PSI. maybe about roughly 14.5 psi to 1 bar.

Nov 11, 2004 | 10:32 PM

R129

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Joined: Nov 2004

Posts: 61

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RE: Compression Pressure

Maraming Salamat Sleepwalker!

I presume limit value of 8.5 Bar is lowest value permissible otherwise an overhaul is required? My 1994 R129 is reading 12 bar - is that normal?

Nov 11, 2004 | 11:23 PM

sleepwalker

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Joined: Apr 2004

Posts: 7,050

From: Philippine Islands

RE: Compression Pressure

walang anuman. basta pag may kailangan ka, just post.

very normal and ideal. for as long as the deviation from one cylinder to another is not too far.