Turbo Rebuild
06-08-2017, 01:59 PM
#11
Boost :)
Rebuilt turbos have a much better than 50/50 chance of working. I've had countless that I've done myself on prior cars and have sold countless over the years with only a very small failure rate. There are many companies who have their whole business is rebuilding and fixing used turbos. If they only had a 50/50 shot, they'd be in a crappy business.
However, in this situation, did you buy complete turbos? Or just the wheels and bearings, etc and have them put in your existing housings? The seller claims to have balanced the wheels, but to what RPM? Do they give you a printout or results of the balancing? (any reputable place can produce that).
Also, them pointing to the wastegates tells me they have no idea how our trucks work. They are not run off solely of vaccuum/boost pressure. They are electronically controlled and told when to open or close so checking any preload is not worth it.
I would never ever EVER recommend to someone to buy turbo internals and rebuild it themselves. Find a shop, have it rebuilt and balanced CORRECTLY and see what happens. There are ways to check if the turbos have failed, but that also could have been done before they were put on the truck. This situation is starting to sound like a shop on Ebay that has the China stuff and doesn't balance correctly.
However, in this situation, did you buy complete turbos? Or just the wheels and bearings, etc and have them put in your existing housings? The seller claims to have balanced the wheels, but to what RPM? Do they give you a printout or results of the balancing? (any reputable place can produce that).
Also, them pointing to the wastegates tells me they have no idea how our trucks work. They are not run off solely of vaccuum/boost pressure. They are electronically controlled and told when to open or close so checking any preload is not worth it.
I would never ever EVER recommend to someone to buy turbo internals and rebuild it themselves. Find a shop, have it rebuilt and balanced CORRECTLY and see what happens. There are ways to check if the turbos have failed, but that also could have been done before they were put on the truck. This situation is starting to sound like a shop on Ebay that has the China stuff and doesn't balance correctly.
06-08-2017, 02:27 PM
#12
Senior Member
Rebuilt turbos have a much better than 50/50 chance of working. I've had countless that I've done myself on prior cars and have sold countless over the years with only a very small failure rate. There are many companies who have their whole business is rebuilding and fixing used turbos. If they only had a 50/50 shot, they'd be in a crappy business.
However, in this situation, did you buy complete turbos? Or just the wheels and bearings, etc and have them put in your existing housings? The seller claims to have balanced the wheels, but to what RPM? Do they give you a printout or results of the balancing? (any reputable place can produce that).
Also, them pointing to the wastegates tells me they have no idea how our trucks work. They are not run off solely of vaccuum/boost pressure. They are electronically controlled and told when to open or close so checking any preload is not worth it.
I would never ever EVER recommend to someone to buy turbo internals and rebuild it themselves. Find a shop, have it rebuilt and balanced CORRECTLY and see what happens. There are ways to check if the turbos have failed, but that also could have been done before they were put on the truck. This situation is starting to sound like a shop on Ebay that has the China stuff and doesn't balance correctly.
However, in this situation, did you buy complete turbos? Or just the wheels and bearings, etc and have them put in your existing housings? The seller claims to have balanced the wheels, but to what RPM? Do they give you a printout or results of the balancing? (any reputable place can produce that).
Also, them pointing to the wastegates tells me they have no idea how our trucks work. They are not run off solely of vaccuum/boost pressure. They are electronically controlled and told when to open or close so checking any preload is not worth it.
I would never ever EVER recommend to someone to buy turbo internals and rebuild it themselves. Find a shop, have it rebuilt and balanced CORRECTLY and see what happens. There are ways to check if the turbos have failed, but that also could have been done before they were put on the truck. This situation is starting to sound like a shop on Ebay that has the China stuff and doesn't balance correctly.
"We cannot Guarantee that a rebuilt turbo will balance to the same specs as original. From our experience it's a 50/50 shot." They don't hold rebuilds to the same tolerances I guess.
So I wouldn't say that it means the Turbos will fail prematurely, but for those that want to ensure they have the best shot at not having another failure, rebuilt turbos are not the best option.
I did have a rebuilt Garret TP38 on my old 6.0 (truck is my Dad's now) and it has been flawless.
06-09-2017, 11:41 AM
#13
Boost :)
Straight from Borg Warner when a Full Race GT Turbo needed to be rebuilt due to something minor damaging the veins.
"We cannot Guarantee that a rebuilt turbo will balance to the same specs as original. From our experience it's a 50/50 shot." They don't hold rebuilds to the same tolerances I guess.
So I wouldn't say that it means the Turbos will fail prematurely, but for those that want to ensure they have the best shot at not having another failure, rebuilt turbos are not the best option.
I did have a rebuilt Garret TP38 on my old 6.0 (truck is my Dad's now) and it has been flawless.
"We cannot Guarantee that a rebuilt turbo will balance to the same specs as original. From our experience it's a 50/50 shot." They don't hold rebuilds to the same tolerances I guess.
So I wouldn't say that it means the Turbos will fail prematurely, but for those that want to ensure they have the best shot at not having another failure, rebuilt turbos are not the best option.
I did have a rebuilt Garret TP38 on my old 6.0 (truck is my Dad's now) and it has been flawless.
I believe they are also talking about rebalancing a vein damaged turbo. Of course it won't balance right. Try balancing a wheel on a tire that is bent a bit. Now if you replace the entire wheel on the turbo, there is no reason at all it shouldn't balance perfectly. I think they are just being very careful and crafty with their wording honestly 
BoostLab is one of those places I was speaking of that rebuilds any turbo of any kind for anyone. I guarantee you send them these turbos and they would come back perfect. Their entirely livelyhood and reputation is based on it. I've sent them numerous turbos over the years, not one issue.
I digress, sorry OP. Hopefully you are getting things arranged and working better. If not, might be time to have the quality of workmanship on the parts and installation checked out.
06-09-2017, 11:57 AM
#14
Senior Member
Yeah, for sure some "sales" going on. But it wasn't about fixing a damaged compressor wheel as I asked for a replacement wheel.
The credit on the old Turbo was enough that I didn't care about the cost of a new one vs. rebuilt. But to your point, why would they offer more than just a "Core" credit if it can't be rebuilt to spec?
The credit on the old Turbo was enough that I didn't care about the cost of a new one vs. rebuilt. But to your point, why would they offer more than just a "Core" credit if it can't be rebuilt to spec?
06-09-2017, 12:38 PM
#15
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Ok so there is a lot of stuff here to sort out. First the seller did provide a balance sheet with the kit. the kit contained wheels shafts bearings and seals.
I had it installed at a shop where the owner had done similar work to his personal ecoB truck.
The seller has been helpful and is standing behind his product. he is an engineer who focuses on turbos and air flow. he does not know how the ecob works in its entirety and has never given me any illusions otherwise.
I am trying to log the truck to see what is happening with the boost but I'm not sure what to look for. If any one is willing to help I would really appreciate your efforts. At this point I don't think it is the internals of the turbo but something in the operation of the waste gate or fueling map. Not sure but like I said any help would be much appreciated.
I had it installed at a shop where the owner had done similar work to his personal ecoB truck.
The seller has been helpful and is standing behind his product. he is an engineer who focuses on turbos and air flow. he does not know how the ecob works in its entirety and has never given me any illusions otherwise.
I am trying to log the truck to see what is happening with the boost but I'm not sure what to look for. If any one is willing to help I would really appreciate your efforts. At this point I don't think it is the internals of the turbo but something in the operation of the waste gate or fueling map. Not sure but like I said any help would be much appreciated.