(thumper,HISSIN5.0)compression experts!!!!! my numbers are in.

[88stangmangt]

as some of yhou know i am at the point which i am gonna do some engine mods. and i wanted to run compression checks to make sure i didnt have to pull the block. here they are

Cyl#1:135
cyl#2:105
cyl#3:90
cyl#4:90
cyl#5:90
cyl#6:97
cyl#7:92
cyl#8:92

What do you guys think?

 

[tvmango]

was your battery geting low? I would recheck the first 2, to see if there any different.

 

[88stangmangt]

no i dont think so i am gonna go re-check them now.

 

[deion82]

Well did you pull all the spark plugs out of the engine?

 

[deion82]

If not your comp. might come up about 20 lbs. over what you got. The compression seems really low. My opinion time for a rebuild. My 302 the low is 130 and the high is 140 and I have about 140,000 miles on it.

 

[88stangmangt]

i just did #1 over again and it read 150 from 135 so i think something is screwed wiht the batt my father is gonna do it for me so we will see then.