Page 1 of 1

Compression Question

Posted: Fri May 13, 2016 8:11 am
by Adams
Hello Pops and All, I've posted this on the Ford Six board, but I wanted to throw this out here...Now that my 200 is installed, I have the old 144 on the stand. When I turn the crank with a wrench, I notice the sound of escaping air (maybe into the crank case). My first thought, of course, is compressed air leaking past the rings. Is it normal to hear this in a motor when you are turning the crank slowly by hand that's not oiling and running, or is it really a sign of massive blow-by? The engine didn't use a drop of oil, and didn't seem to have excessive blow-by when running.

Re: Compression Question

Posted: Fri May 13, 2016 11:29 am
by popscomet
YEP,that is normal.................POP

Re: Compression Question

Posted: Fri May 13, 2016 12:41 pm
by fryedaddy
yea normal,when i do a valve adjustment i turn the engine by hand and i hear that sond about every time i turn the motor 1/4 turn to the next cylinder

Re: Compression Question

Posted: Fri May 13, 2016 1:42 pm
by Adams
Cool, that's good to hear.