pearlyellow

Yes I did a search but everyone is asking about there numbers on engines that aren't even broke in. I have a rebuild w/ about 40k on it and here's my numbers: front rotor 7.2/7.4/7.4 and ther rear 7.2/7.4/6.5. Compression test was done warm. Not exactly sure what I should get from this. Is this good? Would appreciate some input from somethat knows. Thanks

andre sinclair

iTrader: (36)

7.0 is about 100 psi (average @ 250rpm) However, your front rotor seems even across the board... but It`s the 6.5 in the rear rotor that questionable.

andre sinclair

iTrader: (36)

You probably have a sticking side seal...mix 8oz of Marvil Mystery Oil to a tank of gas to try and loosen it up, the recheck you compression after some miles of driving.

pearlyellow

Well it was tested @ 270 rpm, by the way where can I get the Marvil Mystery Oil?

Rated R1

Wal-Mart, Advance, Pep Boys, etc

t-von

iTrader: (8)

Don't worry about the Mavels, us this link here:

https://www.rx7club.com/showthread.p...ighlight=water


This will free your seals faster than Marvels could ever dream of....plus it's free.