Blown Head Gasket repair w/pics

IHateHacks · 06-24-2007, 03:00 AM

I just installed a stainless braided clutch line today, and I decided to change my spark plugs and run a compression test also today.

Has around 1500 miles on the head gasket, and I changed the plugs when I did the HG.

Here's the compression #'s from my first compression test on 4/16/06, a year before I changed the HG.

Cyl 1: 184psi
Cyl 2: 185psi
Cyl 3: 181psi
Cyl 4: 173psi
Cyl 5: 173psi
Cyl 6: 183psi

Now today the numbers were this-

Cyl 1: 185psi
Cyl 2: 185psi
Cyl 3: 182psi
Cyl 4: 181psi
Cyl 5: 180psi
Cyl 6: 183psi

I used a MAC digital compression tester, all of the spark plugs were removed, engine was hot, EFI fuse was pulled, throttle was held wide open, and I only cranked the motor for about 4 seconds on each cylinder. This is on a 20 year old motor with 123K original miles on it. Not too shabby if you ask me. I was pleased with the results.

And my exhaust is alot louder with new plugs, a definite notice in throttle response and sound. The NGK's that were in it only had about 1500 miles on them.

06-24-2007, 03:00 AM	#164
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	I just installed a stainless braided clutch line today, and I decided to change my spark plugs and run a compression test also today. Has around 1500 miles on the head gasket, and I changed the plugs when I did the HG. Here's the compression #'s from my first compression test on 4/16/06, a year before I changed the HG. Cyl 1: 184psi Cyl 2: 185psi Cyl 3: 181psi Cyl 4: 173psi Cyl 5: 173psi Cyl 6: 183psi Now today the numbers were this- Cyl 1: 185psi Cyl 2: 185psi Cyl 3: 182psi Cyl 4: 181psi Cyl 5: 180psi Cyl 6: 183psi I used a MAC digital compression tester, all of the spark plugs were removed, engine was hot, EFI fuse was pulled, throttle was held wide open, and I only cranked the motor for about 4 seconds on each cylinder. This is on a 20 year old motor with 123K original miles on it. Not too shabby if you ask me. I was pleased with the results. And my exhaust is alot louder with new plugs, a definite notice in throttle response and sound. The NGK's that were in it only had about 1500 miles on them. Last edited by IHateHacks; 06-25-2007 at 12:32 AM.