1982 Ford E-Van Compression Readings

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RISH
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I have a Ford 1982 E-Van straight six. I had a real scare the other day and thought that I had blown a head gasket . . . after getting the engine to purr like a kitty. But, when I checked the engine compression readings and they were; CYL 1, [b:2be1c13469]135[/b:2be1c13469]; CYL 2, [b:2be1c13469]132[/b:2be1c13469]; CYL 3, [b:2be1c13469]129[/b:2be1c13469]; CYL 4, [b:2be1c13469]137[/b:2be1c13469]; CYL 5, [b:2be1c13469]140[/b:2be1c13469], and CYL 6, [b:2be1c13469]138[/b:2be1c13469]. Are these good readings for this type of engine? I was thinking to also check the head bolts and make sure that they are tightened to spec.

The scare was this . . . while I was driving a short distance, the engine just threw off the water pump/alternator/crank pully belt. The water came out of the coolant reservoir and leaked at the radiator. However a close inspection of the radiator shows it might be a loose belt---haven't had a chance to check it out yet. I have a hunch that the water pump pully may be the cuprit for throwing the belt, but I haven't been able to prove that yet.

Thanks for any advice and help you can be. :D

RISH
Feb 14, 2006 at 6:38 PM
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i would say exceptional for the age the 129 is a little behind but those readings are not that bad.
Feb 17, 2006 at 12:32 PM

Suggested Repair

No compression repair is indicated. Readings of 129 to 140 psi are exceptional for the age of this straight-six; cylinder 3 at 129 psi is slightly lower but not bad.

Conversation Summary

The owner of a 1982 Ford E-Van straight-six feared a blown head gasket after the water pump, alternator, and crank pulley belt came off and coolant escaped from the reservoir and radiator area. Compression was 135, 132, 129, 137, 140, and 138 psi. The expert said the readings are exceptional for the engine's age, with cylinder 3 only a little behind and not bad.

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