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Old 09-10-2006, 02:32 AM   #1
trndkll67
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Join Date: Dec 2004
Location: Seattle, WA
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Default Are these good compression values?

So, she's been sitting for several months, and I'm trying to get her back on the road. I recently rebuilt the carb and replaced the distributor. With help of other MMB members, I found TDC and set timing. The timing is still way off(hissing and puffing from the carb, running REALLY rough) I did a compression check and got the following values:

1: 120psi
2: 120psi
3: 125psi
4: 125psi
5: 120psi
6: 110psi
7: 135psi
8: 130psi

Car is a 1967 HT coupe. Engine is a 302 w/ 4bbl Edlebrock. It was somewhat cold when these values are taken, so I'm not sure how much effect that has.

My question: Does this engine look like it has any major problems? Should I look into a new engine, a brand new carb, or have the head rebuilt?
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Old 09-10-2006, 07:33 PM   #2
mustangII460
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Location: Sevier Co,Tennessee
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Default Re: Are these good compression values?

Compression looks fine.

Do you still have a points style distributor? If so, lose it.

Buy a pertronics igniter thats swaps out the points.

Like said before, check firing order again.

Bad vacum advance? Vacum advance plugged into a good spot? Vacum advance unplugged while setting timing, plug hose?

Just checking the simple stuff 1st.
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Old 09-10-2006, 11:26 PM   #3
bmxmon
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Default Re: Are these good compression values?

I have the pentronics HEI distributor, its been good to me. The only problem is that it sits too high to use a standard air cleaner, so if you dont mind ditching that then its a good route to go. You could also run a carb spacer, but I know i didnt have the hood clearance for it.
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Old 09-11-2006, 12:41 AM   #4
trndkll67
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Location: Seattle, WA
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Default Re: Are these good compression values?

Yes, I already have the Petronix electronic igniter and the autolite distributor is brand new. I checked firing order, it is all correct too. Vacuum advance is plugged into the main vac port on the front of the carb. Should that hose be unplugged when setting timing? (it was plugged in when I did it.)
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