Welcome to the all new Geo Metro Forum. We hope you enjoy your visit.You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are features you can't use and images you can't see. Registration is simple, fast, and completely free. If you're already a member please log in to your account to access all of our features: Join our community! |
| LOW COMPRESSION; LEAK DOWN TEST | |
|---|---|
| Tweet Topic Started: Feb 4 2013, 07:06 AM (402 Views) | |
| VOGLERB | Feb 4 2013, 07:06 AM Post #1 |
|
New Member
![]() ![]() ![]() ![]()
|
Have low compression in 2 cylinders (adjacent) 90 ...... 60...... 170 Leak down test has air leaking from the adjacent spark plug hole.....tested cylinder at T.D.C. during test. I figured Head Gasket.....put on new gasket....same issue...can I assume a warped head? I've not done a lot of engine overhaul but am pretty good at following directions and turning wrenches and enjoy messing with this stuff... pulled head off and planning on taking it to the machine shop to have it checked. Straight edged the block and it appears to be ok. Just had the head and valves done a year ago and have not had any overheating issues. Engine has just under 160,000 on it to date.... Thanks in advance!! |
![]() |
|
| clarkdw | Feb 4 2013, 07:39 AM Post #2 |
![]()
|
Any leakage from the exhaust? Could be two burnt exhaust valves. |
![]() |
|
| VOGLERB | Feb 4 2013, 08:31 AM Post #3 |
|
New Member
![]() ![]() ![]() ![]()
|
Put in the spark plug to stop the leak out that port.....didn't hear anything out the exhaust. |
![]() |
|
| geo pet | Feb 4 2013, 08:54 AM Post #4 |
|
" my strange addiction "
![]()
|
Look at the rings Next . If the head checks out |
![]() |
|
| Old Man | Feb 4 2013, 12:25 PM Post #5 |
![]()
|
maybe should have done the rings at the same time??? have you had any oil useage or puffs of smoke lately? |
![]() |
|
| VOGLERB | Feb 4 2013, 01:25 PM Post #6 |
|
New Member
![]() ![]() ![]() ![]()
|
ended up being exhaust valves.....no puffs of smoke but since i've got it this far apart i'm gonna go a little deeper.... Thanks everyone for your advice.....it is very much appreciated!! |
![]() |
|
| Reista | Feb 4 2013, 01:46 PM Post #7 |
![]()
Clutzy Shadetree
![]()
|
I was told to do a full rebuild if you rebuilt the head because the engine doesn't like a tight head but looser lower end. It was too late to save me but I thought you might like to know ^^ |
![]() |
|
| 1 user reading this topic (1 Guest and 0 Anonymous) | |
| « Previous Topic · Engine Tech & Diagnostics · Next Topic » |


Welcome to the all new Geo Metro Forum. We hope you enjoy your visit.


![]](http://z3.ifrm.com/static/1/pip_r.png)






2:29 PM Jul 11