Attention: TDR Forum Junkies 
After reading about the problems some of our fellow TDR boys have found with turbo blades being chewed up on their new 24 valve trucks, I have this to offer.
As most of you are well aware of I work for CAT. About 6 months ago, give or take a few months, we started having turbo failures on some holset turbos (we use 4-5 different turbo suppliers depending on application). We had 4 gensets fail out in the field due to turbo blades grinding the aluminum housing up until the shaft locked and broke.
This caused 3 of them to catch fire, one was a genset for a hospital, and the other was out in B. F. E. , and the other 2 we lost in house during testing.
Rumor had it that Holset had just got a new factory going in Mexico and the quality checks were not where they needed to be. They did get things squared away down there I understand. I said something about this to the Holset guy at Schieds diesel fest thing and he didn't want to talk about it. Said it was fixed.
I urge everyone to go out and check the clearance between the blades and the inner aluminum wall. Some of you that have hot EGT's due to bombing could be worsening the situation because the metal will expand on the blades, and might cause more wear. If that impeller shaft breaks, oil goes everywhere and a serious fire could result, so get off you a$$ and get outside and check things out. It might save you more than you think.
I am posting a copy of this message in a few other places on the board, hoping it will get some visibility. Moderators, please dont delete or lock these copies from the other discussion forums, this could be a very serious situation.
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Always ready to help!
2000 2500 Red Sport quad cab, 4x4, K&N, DDI's, straight piped, boost, pyro and fuel pressure gages, Hot Power Edge, EZ box, mean looking set of 33. 5" tires, Snap On diamond tool box, Marine Corps window sticker, Semper Fi!
1972 340 Cuda'. Original tripple Black, 340 car w/air. Good clean car, super stock springs, Weld Prostars, shaker hood, strong 340 with a 727/4000 stahl, 4. 56... . Bombs away!
NRA Life Member
My Diesel Page
As most of you are well aware of I work for CAT. About 6 months ago, give or take a few months, we started having turbo failures on some holset turbos (we use 4-5 different turbo suppliers depending on application). We had 4 gensets fail out in the field due to turbo blades grinding the aluminum housing up until the shaft locked and broke.
This caused 3 of them to catch fire, one was a genset for a hospital, and the other was out in B. F. E. , and the other 2 we lost in house during testing.
Rumor had it that Holset had just got a new factory going in Mexico and the quality checks were not where they needed to be. They did get things squared away down there I understand. I said something about this to the Holset guy at Schieds diesel fest thing and he didn't want to talk about it. Said it was fixed.
I urge everyone to go out and check the clearance between the blades and the inner aluminum wall. Some of you that have hot EGT's due to bombing could be worsening the situation because the metal will expand on the blades, and might cause more wear. If that impeller shaft breaks, oil goes everywhere and a serious fire could result, so get off you a$$ and get outside and check things out. It might save you more than you think.
I am posting a copy of this message in a few other places on the board, hoping it will get some visibility. Moderators, please dont delete or lock these copies from the other discussion forums, this could be a very serious situation.
------------------
Always ready to help!
2000 2500 Red Sport quad cab, 4x4, K&N, DDI's, straight piped, boost, pyro and fuel pressure gages, Hot Power Edge, EZ box, mean looking set of 33. 5" tires, Snap On diamond tool box, Marine Corps window sticker, Semper Fi!
1972 340 Cuda'. Original tripple Black, 340 car w/air. Good clean car, super stock springs, Weld Prostars, shaker hood, strong 340 with a 727/4000 stahl, 4. 56... . Bombs away!
NRA Life Member
My Diesel Page
