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> Problem With Turbo Change
drewhinkle
post Oct 22 2009, 05:24 PM
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I hope one of you experts can help me out here 'cause my wallet is getting mighty thin. I have a 99 GS-T Spyder 2.0 turbo. I replaced the stock Garrett turbo with a Mitsu Evo III 16G. Continued to get blue exhaust smoke. Plugs looked good, compression within factory specs. Pulled air intake line from airbox to turbo and saw oil so I replaced it with another 16G 3 days ago. Still blue exhaust, pulled air intake to find oil again. What the hell is going on? Both times I primed turbo VERY well. Am I missing something here?
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HMatt
post Oct 22 2009, 05:44 PM
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You could have blown your headgasket. Or your egr valve is seriously f'ed up...
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drewhinkle
post Oct 22 2009, 05:56 PM
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is there a way to check the EGR valve?
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HMatt
post Oct 22 2009, 05:59 PM
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Well, some people say that you can pull it off and blow into it. If it goes one way and not the other, then it's good. Personally, I just change it, it's like $10, but I highly doubt that's your problem buddy. Sorry to say...
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piggylover1985
post Oct 22 2009, 07:47 PM
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Drives: 92 Stealth R/T TT, MBC,BOV, MAF-T, 3" SS straightpipe, Exedy clutch stage 3, evo rims.. 87 WB Starion G54B turbo, FMIC, 13psi, 1000cc injectors,MBC,BOV, 2-1/2 full exhaust, catless, MK1 hardpipe kit, 1G MAF, 3.90 rear end, 6 bolts axles and hub, serious weight lost. 95 Stang 5.0, 373 gears, Cobra T5, GThead, Explorer intake manifold & injectors, racing clutch, straight pipe, full body kit, racing hood, z3 fenders, custom burnt orange paint, CAI, Lambo doors kit. 20" chrome wheels, Eclipse DVD/Navigation w/ custom sound
are they new or used turbos ? if they are new then i don't think the turbo is the problem, could be head gasket, worn/hard valve seals, worn piston ring etc.
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drewhinkle
post Oct 22 2009, 07:58 PM
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brand new Mitsu turbos, which I bought because of their rock-solid reputation
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BigJohnson9796
post Oct 22 2009, 10:39 PM
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QUOTE (drewhinkle @ Oct 22 2009, 07:58 PM) *
brand new Mitsu turbos, which I bought because of their rock-solid reputation


did you upgrade your injectors?
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Az3g
post Oct 23 2009, 12:05 AM
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blue smoke is caused by burning oil. this is due to a fried piston ring(s) or a blown head gasket. or even a crack in the block. do a compression test or a cylinder leak down test to be really sue.
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4G63Attack
post Oct 23 2009, 12:50 AM
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QUOTE (Az3g @ Oct 22 2009, 10:05 PM) *
blue smoke is caused by burning oil. this is due to a fried piston ring(s) or a blown head gasket. or even a crack in the block. do a compression test or a cylinder leak down test to be really sue.


or bad valve seals
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drewhinkle
post Oct 23 2009, 07:35 AM
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compression of cylinders tested within factory specs
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HMatt
post Oct 23 2009, 08:06 AM
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^that means the rings are probably fine... headgaskets in these old things like to go around 100 - 120K miles for soem reason. Mine did. Hell, a buddy of mine's did too, but he wasn't so lucky, squirted oil onto his exhaust mani and caught the can on fire... No more car...
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onesickgst32
post Oct 23 2009, 08:57 AM
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QUOTE (Az3g @ Oct 23 2009, 12:05 AM) *
blue smoke is caused by burning oil. this is due to a fried piston ring(s) or a blown head gasket. or even a crack in the block. do a compression test or a cylinder leak down test to be really sue.


just hope its not a cracked block. that always sucks. rebuilt 2 chevy 350's with that. check the oil to see if coolant has seeped in (milky color). if thats the case then it may possibly be a cracked block. since your compression is good the rigs are ruled out, so it seems the valve seals and head gasket will be the culprit.
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JuGs
post Oct 23 2009, 11:18 AM
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QUOTE (onesickgst32 @ Oct 23 2009, 08:57 AM) *
just hope its not a cracked block. that always sucks. rebuilt 2 chevy 350's with that. check the oil to see if coolant has seeped in (milky color). if thats the case then it may possibly be a cracked block. since your compression is good the rigs are ruled out, so it seems the valve seals and head gasket will be the culprit.


I wouldnt rule rings out. I just had a project a few weeks ago and perfect compression. but it was burning oil, cometo find out it was oil rings. also does it smoke one you start the car? or shortly after the car gets warm? like said already could be HG if oil looks like chocolate mile then HG for sure. also can be the pcv valve too.
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drewhinkle
post Oct 23 2009, 11:27 AM
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I changed the PCV valve last night, and I'm ordering a crank case breather catch can today. It doesn't exhibit any of the normal symptoms of a blown head gasket, but I am wondering about the valve stem seals. I'll post the outcome later...
MANY THANKS FOR ALL YOUR EXPERT ADVICE!
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BigJohnson9796
post Oct 23 2009, 12:04 PM
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QUOTE (drewhinkle @ Oct 23 2009, 11:27 AM) *
I changed the PCV valve last night, and I'm ordering a crank case breather catch can today. It doesn't exhibit any of the normal symptoms of a blown head gasket, but I am wondering about the valve stem seals. I'll post the outcome later...
MANY THANKS FOR ALL YOUR EXPERT ADVICE!


Again when you went to the evo III turbo did you upgrade your injectors
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drewhinkle
post Oct 23 2009, 12:51 PM
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negative - I did not change the injectors. everything is bone stock except the new turbo.
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HMatt
post Oct 23 2009, 02:46 PM
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The injectors have nothing to do with this.

These things typically don't exhibit anything wrong with the head gasket blown honestly... Most just either burn alot of oil or leak alot of oil.

And this isn't a V-8, it's a 4g63. You don't have a cracked block.
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BigJohnson9796
post Oct 24 2009, 02:22 AM
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QUOTE (drewhinkle @ Oct 23 2009, 12:51 PM) *
negative - I did not change the injectors. everything is bone stock except the new turbo.


I was asking to see how it runs have you seen your fuel cut with that turbo cause with stock injectors you should I am right now running the same turbo and my fuel cuts at full boost
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drewhinkle
post Oct 24 2009, 09:17 AM
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I guess the fuel isn't cutting out, 'cause I have noticed anything except for stronger boost. If the fuel was cutting then I would notice, right?
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BigJohnson9796
post Oct 24 2009, 01:47 PM
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oh yeah you would notice. How many pounds of boost you running and have you taken it to redline?
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