Stripped Turbo Oil feed line, Would New CHRA Fix it?
#1
Thread Starter
Stripped Turbo Oil feed line, Would New CHRA Fix it?
Hey guys, I found a way to verify this weekend if my turbo had a restrictor without having to take the manifold off. Once I removed the restrictor and tried to re-install it, it seems as though the thread for the turbo feed was gone. It just kept on spinning. I bought this turbo used so who knows if it was messed up before. Since it had a restrictor either way, I decided to take it to a local mechanic to have the turbo rebuilt. Since its a ball bearing, I read that the CHRA would need to be replaced. Does this also replace the turbo oil feed line housing or is that seperate? Does anyone have an idea how much precision charges for this? When I called them, they said its a garret center cartridge so I'm not sure if they would have to send it to them to rebuild. From searching online, i found repairs form 450-850.
Also, since the process to rebuild the turbo takes a few weeks, I decided to use the car in stock form. I run a Aem ems so I was just going to lean it out a bit since it might run rich. Is there anything else i should worry about running the car NA for a few weeks? Obviously, I will not push the car.
Finally, do you think sending it to Precision is the best option or would you recommend another place due to price or experience?
Thanks,
Also, since the process to rebuild the turbo takes a few weeks, I decided to use the car in stock form. I run a Aem ems so I was just going to lean it out a bit since it might run rich. Is there anything else i should worry about running the car NA for a few weeks? Obviously, I will not push the car.
Finally, do you think sending it to Precision is the best option or would you recommend another place due to price or experience?
Thanks,
#2
Registered User
Hey guys, I found a way to verify this weekend if my turbo had a restrictor without having to take the manifold off. Once I removed the restrictor and tried to re-install it, it seems as though the thread for the turbo feed was gone. It just kept on spinning. I bought this turbo used so who knows if it was messed up before. Since it had a restrictor either way, I decided to take it to a local mechanic to have the turbo rebuilt. Since its a ball bearing, I read that the CHRA would need to be replaced. Does this also replace the turbo oil feed line housing or is that seperate? Does anyone have an idea how much precision charges for this? When I called them, they said its a garret center cartridge so I'm not sure if they would have to send it to them to rebuild. From searching online, i found repairs form 450-850.
Also, since the process to rebuild the turbo takes a few weeks, I decided to use the car in stock form. I run a Aem ems so I was just going to lean it out a bit since it might run rich. Is there anything else i should worry about running the car NA for a few weeks? Obviously, I will not push the car.
Finally, do you think sending it to Precision is the best option or would you recommend another place due to price or experience?
Thanks,
Also, since the process to rebuild the turbo takes a few weeks, I decided to use the car in stock form. I run a Aem ems so I was just going to lean it out a bit since it might run rich. Is there anything else i should worry about running the car NA for a few weeks? Obviously, I will not push the car.
Finally, do you think sending it to Precision is the best option or would you recommend another place due to price or experience?
Thanks,
If they are rebuilding it, you shouldn't need a new housing, just bearings, seals, and balancing. They should be able to repair the oil threads if you tell them for $$...unless, they have a whole assembly they just swap out and re-balance.
For the AFR, your vacuum map should be pretty close, O2 trim *should* take care of it under light load- verify it's working. If you are not in closed loop, it will run different, but again, should be close... I suppose lean is better then way too rich.
#4
Thread Starter
Thanks for both your post. Glad to hear a new CHRA would fix the housing issue. I do think my seals are blown. I have done everything to correct it and still at WOT, you see a huge cloud of smoke. I also found oil in the intake pipe.
I also installed a restrictor originall on the opposite end of the turbo feed line, moved the turbo drain on the oil pan to the front, and also used thicker oil (10-40) and still the same issues. Im guessing it has to be the turbo. I found a local shop here in miami who will check it for me for free and let me know whats wrong with it.
I also installed a restrictor originall on the opposite end of the turbo feed line, moved the turbo drain on the oil pan to the front, and also used thicker oil (10-40) and still the same issues. Im guessing it has to be the turbo. I found a local shop here in miami who will check it for me for free and let me know whats wrong with it.
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