Help!!!turbo Problem???
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Help!!!turbo Problem???
Here is what happend today. I was pulling a boat and trailer weighs about 10,000lbs up a 6%-7% grade. Its about a 2 mile run. I kicked it out of over drive and was cruising up the hill fine at about 60mph around 2400rpm give or take a little bit. My boost was around 28 to 30lbs, I have had the boost up there many times before pulling this boat and other things, and no problem. On my turbo I have the wicked wheel, banks turbo housing, and big head actuator and my chip was set at the time of 80hp, and yes EGT was around 700 to 800 POST TURBO. I started hearing a sound comming from my turbo. It sounded like the compressor wheel was rubbing the housing a very loud squeel. I backed off the throttle and it went way. Now if I go over 24lbs of boost now for over about 10 seconds I get that sound again. I just got home with it and it dark out so I'll take a look at it in the morning. I'm hoping it not what I think it was. If any one can help that would be great. Also where is the best place to get a turbo???
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I'm on my way out to the truck now, I'll let you know the damage report here soon. If it is bad I think I might get the BB turbo. Where is the best place to get one? I'll let you know superpony18 if I do replace the turbo.
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From: Foresthill, Ca.
I would think that some of the sponsers would cary them. If not there is ATS and a few others try a search there are actually alot of vendors not sure if they all sell the same turbo.
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From: Dallas, Texas
There's always a little play, but I mean a little. You need to remove the compressor housing and check the inside radius. Then remove the wheel and check the flat surface behind it. There should be no marks.
If you are not going to go nuts and buy a bigger/better turbo, then a rebuild kit will do fine.
You should not be able to hear or feel any rubbing contact when applying pressure the the center shaft (up/down/left/right) while rotating. Also there should be no rubbing when center shaft is pulled/pushed in and out (axial play). - this is from a tech at Turbonetics-
If you are not going to go nuts and buy a bigger/better turbo, then a rebuild kit will do fine.
You should not be able to hear or feel any rubbing contact when applying pressure the the center shaft (up/down/left/right) while rotating. Also there should be no rubbing when center shaft is pulled/pushed in and out (axial play). - this is from a tech at Turbonetics-
Last edited by BuickTurbo; Jul 10, 2006 at 01:07 PM.
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That good info to know. Thanks that is pretty much what I did. I opened it up and everything was good on the compressor side. I also looked at the exhaust side of it while I had it off and every thing was good. I put it all back together now and everything seems to get doing great. I might have been someting else that was making that noise. Thanks
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From: None of your business
On our work trucks (01 PSD and 02 PSD), if we're really getting on it and it's hot out, ours will do that. We think it might be when the fan clutch locks up and squeals the belt.
Mike
Mike
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From: 21791
as long as you can push the socket part of the compressor wheel in all directions and not touch the compressor housing, you should be good. maximum allowable tolerances is .007 in the center of the centersection, since there is no way to check that, the rule of thumb is double of that at the compressor wheel end. mine was .015, which was right at the limit. the axial play should be no more than .0005-.001". so if you have any in and out play it's a bad thing.
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From: Carhenge
Originally Posted by 7.3powerstroke
My boost was around 28 to 30lbs,
Originally Posted by 7.3powerstroke
It sounded like the compressor wheel was rubbing the housing a very loud squeel. I backed off the throttle and it went way. Now if I go over 24lbs of boost now for over about 10 seconds I get that sound again.
but if it was my pickup I would clean and tighten the intercooler/intake boots first. Your symptoms sounds like it could be a boost leak past one of the boots to me.
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From: Columbia, MO
Originally Posted by BLK94F150
On our work trucks (01 PSD and 02 PSD), if we're really getting on it and it's hot out, ours will do that. We think it might be when the fan clutch locks up and squeals the belt.
Mike
Mike