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90 compresion lots of blue smoke

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JBDdsmer610

15+ Year Contributor
508
8
Mar 4, 2006
easton, Pennsylvania
Ok i recently had my car tuned when i was getting it tunned it started blowing out alot of blue smoke we did a compression test and it was 150 150 150 and 90. I have been driving it for 2 weeks since then and it blows out even more blue smoke. when i am just cruising it blows out smoke then when i start to boost theres so much smoke i cant even see behind me. When i put it in reverse it smokes so much. I just did the HG about 1000 miles ago and a fresh new head. I am just curious why i am blowing out so much smoke now. My mods are

Big 16g
punishment o2 housing
tial 35mm WG off o2
evo gt manifold
3in turbo back
FMIC/UICP
greddy type s
FIC 550 injectors
SAFCII
PLX WBo2
1mm oversized valves ported head
MBC
ACT 2600 and streetlite flywheel
wally 190
 
Well if the head is new with valve stem seals and all, and your headgasket is ok, then your rings on that cyclinder are gone/going. Your turbo wouldnt cause low compression, but wouldn't hurt to check it for leaking seals.
 
if your getting 90 compression on one cylinder and you have a fresh head your rings in that one are prob worn and your just burning oil thats why the blue smoke, time for a rebuild of the bottom end,
 
Well i have a block at the machine shop right now getting built its just not done yet but ima go pull the UICP right now and see what i can find
 
JUst pulled it off i took the core off and i dumped oil out of the core it was like a dark gray color and the uicp had some oil in in too
 
That's probably where some of the smoke is coming from. It's either your turbo and/or pcv. Most likely it's your turbo since it gets worse at boost and there's so much oil in the ic and uicp. But your bottom end will still need attention, but looks like you have that taken care of.
 
I was taking a look at my can and i noticed the inside of my muffler was all wet and i stuck my finger in and it was oil, so I ripped the 16g off today and i opened it up and i found this
<a href="http://photobucket.com" target="_blank"><img src="http://i165.photobucket.com/albums/u64/JBDdsmer610/0918071616.jpg" border="0" alt="Photo Sharing and Video Hosting at Photobucket"></a>
So i put my 14b back on and drove it around a bit it still smokes but no white smoke and the muffler still gets oil in it.
 
:talon: Do you have your vent pipe hooked up to the vavle cover. you know the one tube that runs from the vavle cover to the intake??? it could be sucking oil out of the vavle cover try putting a filter or catch can on ### thiers a chance that if thier is oil going throw that tube and your turbo is eating it it shooting it into the combustion chamber. so make sher u check that pipe to see if thier is oil in it. if their is thats your problem buddie:thumb:



good boosting:cool: :talon:
 
Block is at the machine shop right now......weisco pistons 8.3:1 .20 over, 1g rods, arp rod bolts, arp main studs, Acl bearings main and rod, crank with 60000 miles on it, BS removed, HKS 272's
 
should be good to go after block comes back. you still have to rebuild turbo.
check your timing before you rip the head off this block. you never know if timing was done wrong or tensioner let too much slack and you slightly bent a valve. its better to catch this when the head is still off. there should be no reason for the rings to be bad on just 1 piston and close to perfect on the others (though it is #1 and furthest away from the TB)

Again, i would make sure that head is ready to go into that block. wouldn't want you to put it on and find that a valve is slightly bent. i had over 140 on #2-4 and 0 on #1 on a car i bought for $500 and it was the timing had jumped and bent the #1 really bad and the other exhaust valves just enough to lower the compression a bit but still pass. those compression numbers point to the head IMO
 
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