I took my truck to Peterbilt for a high pitch squealing noise under the hood. The noise was on the right side of the engine, so I figured another hump hose had a hole rubbed in it. Turns out that both turbo impeller shafts have play in them and the impeller blades are actually rubbing the turbo housing. So I get to spend $4000 to replace the turbos.
Luckily, the turbos didn't come apart and damage even more. I was wondering of anyone else has had this problem, and if so, any problems after the replacement. Peterbilt says the turbos have been revised with better shaft bearings. But ####! I don't want this problem ever again.
Replacing turbos on C 15 Acert
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Roadhound, Oct 8, 2009.
Page 1 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
Lucky there, good catch!!!
-
I have heard of some of the earlier high pressure turbos failing, but not with a shaft or bearing failure. It had something to do with the housing. You got extremely lucky that the compressor wheel didn't come apart. I have been trying to find someone with knowledge to give me a rough estimate of max shaft speed and PSI for the MXS ACERT turbos. So far I have pushed mine to 65 PSI and I am afraid that when I tune it to sled pull that number will get near 75-80 (or more) PSI.
-
im guessing u and this guy here have the same problem, is this what that squeling ur talking about sounds like? im also guessing urs is the twin turbo model too right?
http://www.youtube.com/watch?v=dQHPBGunBAU -
had a piece of a sleeve i guess that is attatched the exhaust manifold gasket come loose awhile back. got into both turbos, also had the different pitch noise. drove me nuts cause i couldnt figure out what the problem was, looked at everything. finally said the hell with it and took it to a shop that previously replaced a turbo that blew. found out it tore the hell out of the turbine wheels on both turbos.
cat paid for everything. both turbos, gaskets, studs for manifold. they said they knew about the problems with the sleeves and are only paying for it as they go out. -
Chickentrucker20 Thanks this.
-
Garrett sells a turbo speed sensor. Only downfall is you have to drill the compressor housing to install. I guess it comes with blueprints so you could have a machine shop do it.
-
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 2