Car smokes at startup **Video**

[MotoEclipse]

Car smokes on start up. the head only has 1000 miles on it from a new rebuild.



<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/cE-CUnjniNk?hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/cE-CUnjniNk?hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/C0g08bfoByI?hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/C0g08bfoByI?hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

 

[210carlos]

well youre burning the oil for sure so it might be that the valve seals are bad in that cylinderor valve might be slightly bent

 

[MotoEclipse]

my car has perfect compression 173-173-172-173 across the board

i doubt its a bent valve. only 1000 miles on this motor.
and its boosts amazingly.

 

[Absit]

Does it ever stop smoking? If so, does it smoke under boost again?

 

[MotoEclipse]

Yes, it only smokes on startup. after its at normal running temp. its fine no more smoke. im almost positive at this point its valve stem seals.

 

[Killa_dsm]

I can't really tell but it looks like on cylinder 4 you have leaking exhaust valve seals. On #3, it doesn't look like its the exhaust valve seals because it doesn't look like its leaking down the valve. But maybe its the intake side valve seal.

 

[dsm4life91tsi]

valve stem seals could be bad ,

 

[BrokenTsi]

Was it doing this before the head rebuild?

 

[MotoEclipse]

no it wasn't doing it before the rebuild.

 

[rx7ttlm]

ok, so from the video I can't tell if its blue or white smoke. It looks white to me. So tell me if it smells sweet. (if your running regular glycol based coolant it would smell sweet if it was being burnt)

edit after watching second video. Holy balls batman. Whoever rebuilt your head is kinda not smart. They probably tore the seals if they bothered to replace them. If you had lower compression in that cyl I would say your oil control ring is jacked, or the rings are miss aligned but with those numbers that's doubtful.

 

[ilco187]

i have a similar thing heres my thread http://www.dsmtuners.com/forums/cyl...9867-bad-valve-seals-worse.html#post152502967 maybe we can get some insight on whats goin on but im almost 90% sure its valve seals im just trying to make sure its not my lower half.

 

[DSM1G90]

..could be that the oil ring gap is in alignment with the compression ring gap causing the burning in that one cylinder...gaps should be 120* apart from each other on each piston on a rebuild.

 

[Rollinukwn]

you can see in the video the valve seal on the cyl all the way to the left is leaking..

I doubt its the oil ring just due to it stops when it warms up.I built a Olds one time and didn't check after installing the rings and it smoked 10x worse then that with only 1 piston with the rings aligned . I would almost bet on the valve seals.

2d Video at 0:14 pause it and look at the valve stem...

 

[blaze12]

Valves might not be seating right .

 

[Killa_dsm]

Valves might not be seating right .

What does that have anything to do with his smoking? Look at his previous post. He has good compression.

 

[Dsm4lyfe12]

Check your turbo before you make assumptions of the head, my car used to do this when it was cold. It ended up being the turbo and didnt have any shaft play. You might have had to much oil pressure causing the oil to seep past the o ring in the turbo(Like rings these things never completely seal) causing the ring surface to be contaminated thus constantly leaking oil into the exaust.

 

[MotoEclipse]

Yeah, im actually replacing the turbo. i have a 14b on its way to replace my 13G POS. i bought a overhead spring compression tool to take off the springs one by one. and bought a hose with a threaded head to keep the cylinder under pressure to keep the valves from falling in. i gave the shop brand new in the bag valve seal. so idk why they wouldn't have replaced then? it has All New valve train. springs, valves, guides. so im guessing they maybe knicked a couple of the seals and ruined them. im going to be tearing into cylinder 3 & 4 first bc i know for a fact there leaking. as far as rings lining up. i gapped the rings how i was suppose to. opposite of each other. unless they can slide around inside once in the motor?

 

[BrokenTsi]

So you recently rebuilt the bottom end too?

 

[MotoEclipse]

yes, the whole motor only has 1000 miles on it. i did a 100% rebuild. everything was replced besides crankshaft, and rods.

 

[BrokenTsi]

Just fill the cylinder with nylon rope and bring the piston up to the top. Its much easier that way to keep the valves from dropping. Hopefully its just valves stem seals. I've seen people run no valve stem seals at all and it smoked less than yours.

 

[MotoEclipse]

i guess ill have to see. i really don't want to take off my head :/ but ill replace my seals. and if it still persists with the new seals, and turbo. i guess the head will be comin' off.