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Pinto Car Club of America

Welcome to FordPinto.com, The home of the PCCA => General Help- Ask the Experts... => Topic started by: PintoCDN on June 13, 2007, 03:23:48 PM

Title: PINTO COMPRESSION FOR A 2,3L
Post by: PintoCDN on June 13, 2007, 03:23:48 PM
Hello,

I checked compression for my 78 Pinto and it is 135-140 lbs. Is it a normal value for that engine as with the oil addition test thru spark-plug holes, comp. raised to 190 lbs.



Thanks.
Jean
Title: Re: PINTO COMPRESSION FOR A 2,3L
Post by: earthquake on June 13, 2007, 04:00:23 PM
135 to 140s a little low.Adding oil and getting a 50 to 60 psi jump indicates it needs to be rebuilt.Your head is sealing but the rings are leaking down.
Title: Re: PINTO COMPRESSION FOR A 2,3L
Post by: PintoCDN on June 14, 2007, 08:48:49 AM
Thanks,

What will be a normal compression for that engine?

Jean
Title: Re: PINTO COMPRESSION FOR A 2,3L
Post by: earthquake on June 14, 2007, 11:42:55 PM
I believe it should be between 175 185 lbs depending on the year.
Title: Re: PINTO COMPRESSION FOR A 2,3L
Post by: earthquake on June 14, 2007, 11:44:04 PM
I believe it should be between 175 185 lbs depending on the year.
Title: Re: PINTO COMPRESSION FOR A 2,3L
Post by: PintoCDN on June 15, 2007, 10:47:35 AM
Thank you,

I must rebuild engine. In fact I found two sites witn kits to rebuild at a very decent price.

Cheers,
JGC
Title: Re: PINTO COMPRESSION FOR A 2,3L
Post by: Starliner on July 16, 2007, 11:31:18 PM
It's usually more important to look for pressure variation from cylinder to cylinder.  If they are close and you have no oil burning issues it may not need to be rebuilt.   If you add too much oil it can act as a filler, not only a sealer which can raise the compression ratio.   
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