Dave1kRR
04-09-2013, 08:01 AM
Well, as you know, I'm a newer member here. My intro thread showed my engine rebuild work back in August 2012. At that time, I had Dover Cylinder Head rebuild both cylinder heads because of bad valve seats and a burned exhaust valve on cylinder #8. All valves were replaced and hardened valve seats were installed.
Well, the last couple of weeks, I've really noticed a "surging" when I'm sitting in traffic, similar to what it felt like when I first got the Marauder. So I pull it into my shop today to do the dreaded compression test. I test bank 2 first. I started with #5 it had 120 psi, #8, had 115 psi, #7 had 110, then #6 had 60 psi :mad2: I almost lost my freaking mind. Bank 1 is all good. I applied compressed air to the cylinder to find what was causing the compression loss. Air is constantly blowing out of one of the exhaust valves.
So, what should I do now. I've called Dover and they don't really seem interested in helping me. They basically said "we'll take a look at it, but we did everything we were supposed to do, no corners were cut." Anyway, it's only been 5,000 miles since the rebuild, and just got done with a complete rebuild on the rear end (4.10's) bought MO's tune, removed and resealed transmission. There's no MIL, nothing on the misfire counter on data stream.
I'm open to suggestions, so much for saving for a supercharger....:censor:
Thanks in advance, guys.
Well, the last couple of weeks, I've really noticed a "surging" when I'm sitting in traffic, similar to what it felt like when I first got the Marauder. So I pull it into my shop today to do the dreaded compression test. I test bank 2 first. I started with #5 it had 120 psi, #8, had 115 psi, #7 had 110, then #6 had 60 psi :mad2: I almost lost my freaking mind. Bank 1 is all good. I applied compressed air to the cylinder to find what was causing the compression loss. Air is constantly blowing out of one of the exhaust valves.
So, what should I do now. I've called Dover and they don't really seem interested in helping me. They basically said "we'll take a look at it, but we did everything we were supposed to do, no corners were cut." Anyway, it's only been 5,000 miles since the rebuild, and just got done with a complete rebuild on the rear end (4.10's) bought MO's tune, removed and resealed transmission. There's no MIL, nothing on the misfire counter on data stream.
I'm open to suggestions, so much for saving for a supercharger....:censor:
Thanks in advance, guys.