Hey I just put new trick flow twisted wedge heads on my 1992 mustang gt HO 5.0, left the stock cam in there, put on the trick flow 1.6 rockers and pushrods.
I did a compression test in the cylinders once I adjusted the rockers, I seemed to have good compression in all cylinders except #5. I did a dry test and had 100psi in number 5 and then did a wet test and got 120psi. The motor also hasn't been run in a year so this was a cold test. These were my results
1. 160
2. 170
3.170
4.170
5.120
6.153
7.170
8.150
Can anyone tell me why this cylinder would be low, could it be a burnt or bent valve even though the pressure went up on a wet test or could it be a problem with the short block. The heads are the only new part on the engine, and it's the stock block with 100k on it. It hasn't run since it was tore down though, I'm using oringed felpro gaskets also. The motor seemed to be running good before the tear down, but i was getting bad fuel mileage like 12mpg city with a bone stock engine. Any imput would be really appreciated
I did a compression test in the cylinders once I adjusted the rockers, I seemed to have good compression in all cylinders except #5. I did a dry test and had 100psi in number 5 and then did a wet test and got 120psi. The motor also hasn't been run in a year so this was a cold test. These were my results
1. 160
2. 170
3.170
4.170
5.120
6.153
7.170
8.150
Can anyone tell me why this cylinder would be low, could it be a burnt or bent valve even though the pressure went up on a wet test or could it be a problem with the short block. The heads are the only new part on the engine, and it's the stock block with 100k on it. It hasn't run since it was tore down though, I'm using oringed felpro gaskets also. The motor seemed to be running good before the tear down, but i was getting bad fuel mileage like 12mpg city with a bone stock engine. Any imput would be really appreciated