apologies to all who have been commenting in my journal without me doing the same, I've not been spending as much time online as I used to. Mostly working 12s, training some guys so hopefully it'll ease up on me a bit when they can work on their own.
Car: After getting the trans issues sorted I turned my attention to why the car was only running on 7 cylinders and found that now it was only running on 6. I had the intake off to fix a leak, I assumed that I was still having a leak, only on the valley side of the manifold because I couldn't detect one along the outside. I bought a compression tester & gave things a check which showed 0 compression in the two non-firing cylinders. My first thought was a bent valve from hitting a piston since the heads have larger valves & the block was decked. It was supposed to be safe clearance wise based on many other's identical build ups, but I don't know what valve springs are on the heads, they may not be a match for the cam profile and a vlave floating or bouncing could result in contact with a piston. I remembered going back & forth in my mind on whether I should buy a new set of lifters or go with the old ones (they're rollers so you can re-use them with different cams unlike flat tappets). The rocker arms are pedestal mount with little adjustment shims, held down into the heads with bolts. I loostened up the rocker bolts to those two cylinders a little and did the check again. Bingo! Compression became even with the rest of the motor, I've got some stuck lifters. New ones will be here before the weekend. What's REALLY cool is that I was so impressed with the motor I assumed all 8 cylinders must be firing under power, just not at idle. I don't see how those two would be doing anything near full power with 0 compresssion, so there should be a little more from the motor. I better order some traction bars and do something about the brakes. I promise you a nice video ride perhaps with a little sideways action once I've got it running on 8.
Car: After getting the trans issues sorted I turned my attention to why the car was only running on 7 cylinders and found that now it was only running on 6. I had the intake off to fix a leak, I assumed that I was still having a leak, only on the valley side of the manifold because I couldn't detect one along the outside. I bought a compression tester & gave things a check which showed 0 compression in the two non-firing cylinders. My first thought was a bent valve from hitting a piston since the heads have larger valves & the block was decked. It was supposed to be safe clearance wise based on many other's identical build ups, but I don't know what valve springs are on the heads, they may not be a match for the cam profile and a vlave floating or bouncing could result in contact with a piston. I remembered going back & forth in my mind on whether I should buy a new set of lifters or go with the old ones (they're rollers so you can re-use them with different cams unlike flat tappets). The rocker arms are pedestal mount with little adjustment shims, held down into the heads with bolts. I loostened up the rocker bolts to those two cylinders a little and did the check again. Bingo! Compression became even with the rest of the motor, I've got some stuck lifters. New ones will be here before the weekend. What's REALLY cool is that I was so impressed with the motor I assumed all 8 cylinders must be firing under power, just not at idle. I don't see how those two would be doing anything near full power with 0 compresssion, so there should be a little more from the motor. I better order some traction bars and do something about the brakes. I promise you a nice video ride perhaps with a little sideways action once I've got it running on 8.
philipfry:
Burning rubber and drifting on 8 cyls? Sounds like a great time to me 
afterbirth:
Vegas IS bad!!!!