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Discussion in 'Troubleshooting & Diagnosis' started by Beaber89, Mar 6, 2018.
Did you have this rebuilt at a reputable shop - is going back to them an option?
Unfortunately this rebuild is two years old so I don't believe it's in any warranty. I just don't drive it much is why the miles are around 1000.
It won't hurt to call the guy and let him know what's going on. He might be helpful, even after a couple years.
It's worth a shot. All he can say is no.
Compression tested on a few cylinders ran compression on 2, 6 and 8. 2 is 155 6 is 155 8 is 151 roughly . The gauge was bleeding itself off. The intake valves are gross on all of them likely from running nasty rich for a while. But I'm looking at the runners of the heads on 6 and 8 now. There's a good obvious difference between them. Looks like 6 may have been dragging oil in through the intake gasket but I'm not really experienced enough to say. What do the fellas think ? Pics are sideways but hopefully you can tell
Or their not sideways but upload showed it sideways
Check the spark plugs wires or change 6/5 wire.
Wires are new 9mm firepower by Taylor cable. Distributor is new, I checked the cap for bad posts on 6 and 8.
It sounds like a simple intake gasket failure to me. I'm pretty sure your builder will say the same thing. Why is the question. Was it a cheap gasket or an old used intake manifold or were the heads shaved altering the mating angles?
Are those "vortec" heads? If so you may need the GM gaskets. I tried the reg blue type gaskets on my ZZ 383 with fast burns and had similar issues until I used the GM vortec gaskets. Stopped my intake leaks. Big runners are not giving much sealing surface from what I can see from the pics.