Compression Numbers

[sccrAdidas15]

Well, I finally got around to doing a compression test, kinda dissapointed because I need to start rebuilding, but I'm going to college in August so I don't know what I'm gonna be doing prrb pull the engine and sit it in my garage. Here are the numbers:


1st Test: 1 cylinder: 125; 2 cylinder: 145; 3 cylinder: 95; 4 cylinder: 60

2nd Test w/ battery charger: 130; 140; 110; 90

3rd Wet Test: 140; 120; 125; 150

So, if anyone has experience with this, what could be wrong?? Thanks!

 

[BaddAssGst]

I was going to say maybe a chipped valve having 90psi in 1 cylinder but bringing that up to 150 would lead to say that your rings are bad.

Just opt for a stock simple rebuild. You could easily do it for about 1000 bucks.

 

[oldman]

A leakdown test to pin point the problem would be the next logical step.

 

[sccrAdidas15]

yea, i'm planning on doing a leakdown test next when I have the time, I'm just debating though whether I went to go for a stock rebuild or performance parts? Is there any way to incorporate both stock and performacne that would make it still cheap?

 

[hova]

maybe if you use forged rods, stock pistons and some cams and all the other goods from oem should keep your rebuild price resonable

 

[oldman]

At this point you should concentrate on pin pointing the problem first, it could be burnt valves, bent valves, piston, rings or something as simple as the head gasket. It's a little early to talk about rebuild but 1G rods with 2G pistons would be the best stock combination.