 Boost problem, Any thoughts appreciated |
 May 8, 2011 - 1:24 PM
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Enthusiast  Joined May 30, '05 From MN Currently Offline Reputation: 8 (100%)  |
I recently installed a new clutch, which I have done numerous times before and ever since, my car won't boost pass 11psi. I had it it set at 15-16psi previously. I double checked and readjusted everything I could possibly think of but it did not help. I don't think this is a boost leak but I may be wrong. So this morning I decided to disconnect the nipple coming from turbo to the actuator to see if boost will creep since the actuator is now disconnected. And still I will only boost to 11psi! So now I'm thinking maybe the wastegate is stuck open? or it this a boost leak? Car boost fine to 11psi with no signs of leak or hesitations. It just wont go pass 11psi regardless of weather I turn boost controller up or down. Any thoughts would be appreciated. I also installed new plugs, wires, dist cap & rotor hoping to solve this but it didn't make any difference.
Thanks This post has been edited by malecrod: May 8, 2011 - 1:25 PM -------------------- 3sgteing.
..burns twice as bright, lasts half as long. "The weight of the world is love. Under the burden of solitude, under the burden of dissatisfaction." -Allen Ginsberg- |
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May 15, 2011 - 7:02 PM
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Enthusiast Joined May 30, '05 From MN Currently Offline Reputation: 8 (100%) |
Thanks Everyone!!!
It was the Actuator! Basically I ended up loosening the downpipe so I can see the wastegate clearly. The wastegate is shut closed. But looking at the wastegate when I apply pressure to the inlet nipple on the actuator with a bike pump, I noticed that the entire actuator moves forward even before the rod moves. This was essentially opening the wastegate prematurely. So I ended up welding a piece of metal to keep it in place. Pics below. Problem is solved!!! So what was happening was that the bracket for the clocked turbo is so thin that its flexes and not able to hold the actuator unit in place causing the wastegate to open up prematurely long before the actuator rod begins to move. Photos of my welding below:  -------------------- 3sgteing.
..burns twice as bright, lasts half as long. "The weight of the world is love. Under the burden of solitude, under the burden of dissatisfaction." -Allen Ginsberg- |
Posts in this topic
malecrod Boost problem May 8, 2011 - 1:24 PM
brenton1919 QUOTE (malecrod @ May 8, 2011 - 2:24... May 8, 2011 - 7:46 PM malecrod Okay, thanks. I will check for air leaks. May 9, 2011 - 10:59 AM Smaay if you disconnected the actuator, did you cap off ... May 9, 2011 - 11:04 AM malecrod Yea it was risky thing to do. I actually didn... May 9, 2011 - 11:28 AM injection QUOTE (malecrod @ May 8, 2011 - 1:24... May 11, 2011 - 11:54 AM Darkchylde It sounds like both of your problems have to do wi... May 11, 2011 - 2:10 PM malecrod I think you are right on the money. I have thought... May 11, 2011 - 10:34 PM Darkchylde If your down pipe is anything like mine, you have ... May 12, 2011 - 12:33 AM malecrod Oh thanks man. I didn't think of looking thru... May 12, 2011 - 9:43 AM Darkchylde How'd it go? May 13, 2011 - 12:55 PM
malecrod QUOTE (Darkchylde @ May 13, 2011 - 1... May 14, 2011 - 9:20 PM delusionz u make a good point about the door not opening ful... May 14, 2011 - 6:04 AM Nartanian Yea defiantly sounds like a wastegate problem. It... May 14, 2011 - 9:46 PM malecrod As promised, I'm posting my version of altern... May 24, 2011 - 2:02 PM delusionz christ.... whatever works eh? lol May 24, 2011 - 11:41 PM |
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