Engine Build Gone Wrong?
#21
Ok get this car went back to the builder and here was the details.
Car used a total of 5qts getting there (4.5hrs)............... She pulled over a few times to check it.
They pulled the plugs and all were soaked in oil
Pulled the intake and it had oil all in it.
Catch can was full of oil.
So guess what they removed the catch can out of the loop and added a filter on the valve cover however this makes really no sense to me. Wife said it stopped smoking. I have still yet to get him to do a leak down test. Its almost like there is something to hide. To top it off he put it on the dyno and made a few pulls with still not understanding why it ate the oil. This is driving me crazy............
Can anyone explain this........
Car used a total of 5qts getting there (4.5hrs)............... She pulled over a few times to check it.
They pulled the plugs and all were soaked in oil
Pulled the intake and it had oil all in it.
Catch can was full of oil.
So guess what they removed the catch can out of the loop and added a filter on the valve cover however this makes really no sense to me. Wife said it stopped smoking. I have still yet to get him to do a leak down test. Its almost like there is something to hide. To top it off he put it on the dyno and made a few pulls with still not understanding why it ate the oil. This is driving me crazy............
Can anyone explain this........
#24
What I think it is.....
1. Rings were gaped wrong.
2. RA on the cylinders was incorrect causing the rings not to seal
3. In correct ring size.
I think it has so much blow by that its pushing the oil into the intake and oil catch can. Its coming from the rings not sealing and the only way you can see this is with a leak down test. A compression check was done and he said it checked good but that does not tell me what % of leakage I have.
#25
Ok lil update. They made 10 dyno pulls and did not use oil. Car made 390rwhp and I guess this ok???? for a low comp n/a 408 combo thru a auto with a 3800 stall.
Wife is on her way home and will be checking the oil again. If it uses any then she will be back tomorrow and they will rip the out out for a complete rebuild.
Wife is on her way home and will be checking the oil again. If it uses any then she will be back tomorrow and they will rip the out out for a complete rebuild.
#33
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Why would you spray a low compression engine that was built for FI. No doubt the heads and pistons will make for a poor nitrous application.The HP/TQ will be relatively low in comparison to a purpose built 408 nitrous engine,also the engine won't produce much grunt N/A either.
#34
Why would you spray a low compression engine that was built for FI. No doubt the heads and pistons will make for a poor nitrous application.The HP/TQ will be relatively low in comparison to a purpose built 408 nitrous engine,also the engine won't produce much grunt N/A either.
Ok the builder wanted it back however I had a leak down and compression check done on the motor by a 3rd party.
Cylinder #1 10%
Cylinder #2 20%
Cylinder #3 8%
Cylinder #4 8%
Cylinder #5 5%
Cylinder #6 20%
Cylinder #7 10%
Cylinder #8 10%
Compression was 145-150.
So everything is within range from what I know besides cyl 2 & 6. Guy pulled the plugs looked caked up with oil crap. Thinks its not venting enough for the crack case.
Why would I be having excessive crankcase pressure?
Last edited by 1INSANEGTO; 10-16-2009 at 03:24 PM.
#37
If i paid a machine shop to build a engine it better be less than 8% ...10% absolute MAX!
Leaking 10% of your combustion into crankcase is like pouring CRAP into your oil...engine aint gonna last veryt long!
I bet your oil looks dirty fast.
Leaking 10% of your combustion into crankcase is like pouring CRAP into your oil...engine aint gonna last veryt long!
I bet your oil looks dirty fast.
#38
I really hate to tell you this....anything over 5% is too much. I hope you get it solved with out too much stress on you.
Thats also why your compression is a little low..i would expect at least 160 arcross ALL the cylinders in a fresh motor.
Thats also why your compression is a little low..i would expect at least 160 arcross ALL the cylinders in a fresh motor.