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b21FT Compression Test 200

posted by  smith_t240 on  Wed Oct 13 16:16 CST 2004
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last visit: Tue Apr 24 02:21 CST 2007
[RELATED]

Hey - I looked through the archives and the Haynes manual and couldn't find any numbers for compression test results for a B21FT. Haynes gives general numbers, but these probably apply to the much more common B230f. And since the b21FT has a lower compression ratio than the b230F, what psi is acceptable??

This is because I ran a compression check on my car today just for somethign to do in Auto class. 1983 244 T not intercooled, 214k miles. It blew right around 130 psi for all cylinders dry test only, but one thing i forgot to do was block the throttle valve open. Engine was warm. Now in the Haynes it says 128 in minimum, but then again, the b21FT has a low compression ratio.

What numbers are good for a b21ft? and more importantly, are my numbers good :-)

Thanks guys and gals,

Smith






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