Endangered Species
Well-Known Member
We took the intake off the motor last week because at the end of the season #7 intake rocker wouldn't stay in adjustment. We not only found #7 intake roller lifter was junk. I had to heat the block to get it out of the lifer bore then found the roller bearing was junk. I don't know how it didn't come apart in mid run.
In more inspection we found #2 Intake Spring had a broken inner spring...(it was missing about a 1/4 of a coil. (that's the only reason I could see it with the springs installed.
Also found #4 exhaust valve seal was destroyed and there were chunks of it jammed in the coils not to mention the steel part of the seal was lying in the bottom of the head.
I didn't mention that all of these parts were brand new at the start of last season. They didn't have but 54 passes on them.
When I leaked the motor down the first time through I was getting funky readings but when I did it again all cylinders but #7 leaked in the 90's..#7 leaked in the 80's for some reason.
We pulled the heads and found everything ok. A few minor scratches in the bottom side of the cylinder, which I think they’ve been there a while because they didn’t look fresh, the tops of the pistons had no damage either. I can’t believe it.
WOW.... we went 9.68 with this all going on in the motor. Thank GOD it rained out at Monster Mopars this year (sorry Josh) or we would probably have taken the motor home in a box.
The reason we had the motor freshen up last winter was so we didn't have these problems.
There is a lot to be said for running the valves and leaking the motor down between races. If I hadn’t been keep records we would have never noticed there was something going on.
Well it just goes to show ya...... It's always something!!
In more inspection we found #2 Intake Spring had a broken inner spring...(it was missing about a 1/4 of a coil. (that's the only reason I could see it with the springs installed.
Also found #4 exhaust valve seal was destroyed and there were chunks of it jammed in the coils not to mention the steel part of the seal was lying in the bottom of the head.
I didn't mention that all of these parts were brand new at the start of last season. They didn't have but 54 passes on them.
When I leaked the motor down the first time through I was getting funky readings but when I did it again all cylinders but #7 leaked in the 90's..#7 leaked in the 80's for some reason.
We pulled the heads and found everything ok. A few minor scratches in the bottom side of the cylinder, which I think they’ve been there a while because they didn’t look fresh, the tops of the pistons had no damage either. I can’t believe it.
WOW.... we went 9.68 with this all going on in the motor. Thank GOD it rained out at Monster Mopars this year (sorry Josh) or we would probably have taken the motor home in a box.
The reason we had the motor freshen up last winter was so we didn't have these problems.
There is a lot to be said for running the valves and leaking the motor down between races. If I hadn’t been keep records we would have never noticed there was something going on.
Well it just goes to show ya...... It's always something!!