volvowagoon
Active member
- Joined
- Jul 19, 2012
- Location
- Franklin, IN
Nice!
Hello Guest, welcome to the initial stages of our new platform!
You can find some additional information about where we are in the process of migrating the board and setting up our new software here
Thank you for being a part of our community!
You will find out if there is a piston ring / groove issue on that #4 cylinder. Did your replacement head have a valve job, or was it just "good used"? Being that low on compression compared to the rest would be concerning. By chance did you wipe those cylinder bores with engine oil while you had the head off? With "wet rings" those compression numbers should be pretty tight in an engine which has not been abused. If you are getting significant blow by your rings on #4 into the crankcase, you will have some significant positive pressure coming around the oil cap. You can either measure the pressure to determine piston/ring health, and/or use the old "glove test".
Once she's running and you get a heat cycle on the engine, check your compression #s again.
I wasn't able to find one on GCP.se but you might want to double check my work.
The progress looks good, but it seems like you have a lot of things to do before you get to finish it.