comp test is 140 ok???
10-08-2007, 02:15 AM
#18
5th Gear Member
Join Date: Sep 2004
Location:
Posts: 3,145
RE: comp test is 140 ok???
Well what were you expecting for 227k miles? It's time for a rebuild or a new shortblock... Here was my compression report.
1 - 142
2 - 140
3 - 140
4 - 137
5 - 146
6 - 144
7 - 140
8 - 138
I have 206k mi on my stock engine.. I pick up my new engin in a couple weeks. Brand spankin' new.
1 - 142
2 - 140
3 - 140
4 - 137
5 - 146
6 - 144
7 - 140
8 - 138
I have 206k mi on my stock engine.. I pick up my new engin in a couple weeks. Brand spankin' new.
10-08-2007, 05:04 AM
#19
5th Gear Member
Thread Starter
Join Date: Oct 2006
Posts: 2,424
RE: comp test is 140 ok???
i was expecting much worse really
ORIGINAL: 91hatchgt
Well what were you expecting for 227k miles? It's time for a rebuild or a new shortblock... Here was my compression report.
1 - 142
2 - 140
3 - 140
4 - 137
5 - 146
6 - 144
7 - 140
8 - 138
I have 206k mi on my stock engine.. I pick up my new engin in a couple weeks. Brand spankin' new.
Well what were you expecting for 227k miles? It's time for a rebuild or a new shortblock... Here was my compression report.
1 - 142
2 - 140
3 - 140
4 - 137
5 - 146
6 - 144
7 - 140
8 - 138
I have 206k mi on my stock engine.. I pick up my new engin in a couple weeks. Brand spankin' new.
10-08-2007, 07:58 AM
#20
6th Gear Member
Join Date: Sep 2005
Location:
Posts: 5,128
RE: comp test is 140 ok???
that is not really bad, the only concerning part is that cylinder one and two have 134 psi and six has 148. That is a fair difference in the two.
Did you try running a wet test? It will reveal more about the bottom end.
Also, what are you trying to fix? What is the problem?
There are some other tests you can do too. If you are certain a piston is at TDC with both valves closed and you pressurize the cylinder, you can listen in the exhaust and intake and hear for air leaking by....
Did you try running a wet test? It will reveal more about the bottom end.
Also, what are you trying to fix? What is the problem?
There are some other tests you can do too. If you are certain a piston is at TDC with both valves closed and you pressurize the cylinder, you can listen in the exhaust and intake and hear for air leaking by....