Metal in oil pickup...HELP (Thrust pics added)
03-02-2014, 02:18 PM
#22
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Fbody pan, stock ported pump with shimmed spring. Don't know the clearances - had a well-reputed shop do the machining and gave me back the assembled short block. I did the rest.
03-02-2014, 03:52 PM
#24
No it needs to come apart.
The f body pan sucks. The pickup placement is bad capacity is low. The turbo are two leaks in your oiling that you need to make up for in oil pump volume. Just shimming the bypass is not going to cut it. You need a increase in volume.
Tim at the car shop inc has a line of pumps that can be sized to your needs. I have been using their pumps with prefect results. Sam school has been doing alot of r&d work with these pumps. Judd is really happy with them.
It is well known the shimmed ls6 pump is the ticket but there are guys burning stuff up due to oiling issues with them.
Mine see 7500 and never gets below 80psi with ls30 at 200 degrees
Tim
The f body pan sucks. The pickup placement is bad capacity is low. The turbo are two leaks in your oiling that you need to make up for in oil pump volume. Just shimming the bypass is not going to cut it. You need a increase in volume.
Tim at the car shop inc has a line of pumps that can be sized to your needs. I have been using their pumps with prefect results. Sam school has been doing alot of r&d work with these pumps. Judd is really happy with them.
It is well known the shimmed ls6 pump is the ticket but there are guys burning stuff up due to oiling issues with them.
Mine see 7500 and never gets below 80psi with ls30 at 200 degrees
Tim
03-02-2014, 05:23 PM
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Thanks for the help guys. Yeah i got a Melling HV pump, thats actually why I was digging into the motor in the first place, to install the new pump. Got it torn down today so the short block will go back into the shop this week.
Thanks for the replies.
Thanks for the replies.
Last edited by Calypso; 03-02-2014 at 05:31 PM.
03-02-2014, 05:39 PM
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What pan do you run Tim? I do have a truck pan laying around but my car is so low I'm afraid it will hit something. I'll have to measure how much deeper that truck pan is.
03-03-2014, 06:49 PM
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Nope, no steel wool in the can. I think its just shavings from the crank. If my crank can't be fixed I'll prob go with a Callies compstar. Anyone know which of the sponsors would have the best deal?
03-03-2014, 07:25 PM
#32
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Hey, that looks familiar. At 40ish endplay the crank counterweights rub the block's main webbing 
Here's mine:
https://ls1tech.com/forums/multimedi...ew-engine.html
Here's mine:https://ls1tech.com/forums/multimedi...ew-engine.html
03-03-2014, 07:47 PM
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Exactly. Pull the converter bolts loose and see if the converter has any clearance between the flywheel. I blued the thrust on mine one time and always check that now.
03-03-2014, 07:55 PM
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Hey, that looks familiar. At 40ish endplay the crank counterweights rub the block's main webbing Here's mine:
https://ls1tech.com/forums/multimedi...ew-engine.html
Here's mine:https://ls1tech.com/forums/multimedi...ew-engine.html
03-04-2014, 01:41 AM
#35
Ask the shop if they checked crank end play. Tony Mamo says he see's thrust bearings too tight often causing failure. He normally has to flat sand the bearings on glass to get the tolerance in spec.
I know there is a possibility of it being a TC issue but I would also seriously look at the thrust clearance issues. How hard has it been driven since the rebuild?
I know there is a possibility of it being a TC issue but I would also seriously look at the thrust clearance issues. How hard has it been driven since the rebuild?
03-04-2014, 09:47 AM
#39
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If not, what is the name and location of the shop in question ?
03-04-2014, 09:50 AM
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Ask the shop if they checked crank end play. Tony Mamo says he see's thrust bearings too tight often causing failure. He normally has to flat sand the bearings on glass to get the tolerance in spec.
I know there is a possibility of it being a TC issue but I would also seriously look at the thrust clearance issues. How hard has it been driven since the rebuild?
I know there is a possibility of it being a TC issue but I would also seriously look at the thrust clearance issues. How hard has it been driven since the rebuild?
Also I did have an oil pressure issue (probably due to bleeding off oil to 2 turbos using a stock oil pump as pointed out by Tim). I ran Brad Penn 20/50 to bring up the pressure, but it probably wasn't enough.