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03-31-2010, 04:18 PM | #1 |
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regarding my ??? about turbos
If the wastegate jams open will it cause the noises I described??? The noise does not sound like a grinding noise or a bad bearing noise just a loud howl-- will heat valve lubricant loosen it??? how loose/free is the rod supposed to be with the engine shut off---like should I be able to move it with a little effort????--Comp 387
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03-31-2010, 04:46 PM | #2 |
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Re: regarding my ??? about turbos
Waste gates normally jam or freeze open, so you can't regulate the boost. Most times you will have full boost all the time. It happens due to sitting between races and rusting or the lead in the race fuel jams it. Either way it should not cause any funny noises. Grinding could be a bearing in the turbo. They will go bad very quickly if they are not properly lubricated. The best way to avoid the waste gate problem is to sleeve the waste gate valve. Doesn't take much and most good turbo rebuilders can do it. Jim
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Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 D2 National Open Stock Champion 1981 D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association. |
03-31-2010, 04:48 PM | #3 |
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Re: regarding my ??? about turbos
Sorry I didn't see your last question. Yes you should be able to open and close the waste gate by hand. Jim
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Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 D2 National Open Stock Champion 1981 D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association. |
03-31-2010, 04:58 PM | #4 |
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Re: regarding my ??? about turbos
Jim,
Wouldn't the actuator rod have to be disconnected for the waste gate valve to move freely? Or maybe that is what you meant?
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Marty Buth 3657 STK |
03-31-2010, 05:06 PM | #5 |
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Re: regarding my ??? about turbos
Depending on what type of actuator you have yes. Mechanical yes, vacuum no, just disconnect the vacuum source and most will allow you to move it. Jim
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Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 D2 National Open Stock Champion 1981 D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association. |
03-31-2010, 10:27 PM | #6 |
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Re: regarding my ??? about turbos
If the wastegate "is " jammed in the open position will it cause the noise/symptoms I described?---also when you idle the truck the noise is still audible but not as noisy as when you run the engine up to 2000RPM----It appears to have a 1/8 inch line going from a fitting in the front of the engine to the actuator head? and if I disconnect it you are telling me I should be able to move the rod/wastegate fairly easily correct ??? Should I lube the wastegate area/shaft whatever with say heat riser lube to free it and maybe try working it back and forth??? Will that help any???? Do not want to get into pulling the turbo if I do not have to not a lot of room to get at it plus disconnecting all of the exhaust and intercooler stuff only to find its the wastgate or its linkage---Thanx for the advice guys Comp 387
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04-01-2010, 09:31 PM | #7 | |
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Re: regarding my ??? about turbos
Quote:
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Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 D2 National Open Stock Champion 1981 D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association. Last edited by Jim Wahl; 04-01-2010 at 09:45 PM. |
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