Blown b16g?

[seth98es]

Well just got my 6bolt JDM 6gvr4 RS motor in my galant. Stock b16g and 510cc injectors. The car runs and sounds fine, but it smokes a lot. Doesnt smoke at first, but starts to smoke as it warms up. I took off the intake tube and found this:

http://www.iamsethmo.com/Pics/Engine Swap/5-19-05 Deadturbo/DSCF0429.JPG

The smoke is white, and doesnt really smell like burnt oil, maybe it does, I cant really tell. Im going to go a compression test tomororw, but could anything else cause oil to be in the turbo inlet besides the turbo itself?

 

[1gdsmraider]

Do you have a Catch can, or anything similar?... If you just put a filter over the vent nipple....it tends to make a mess in the engine bay and would explain getting sucked into the filter, however.. thats a lot of oil, so i would assume a gasket is bad.

 

[seth98es]

Well I have a dejon tool intake tube which doesnt have the nipple for the breather line. So I just have a breather filter on the valve cover. Cant think of any other reason that oil could get in there.

Bad valve seals, could oil get all the way in there from that? The smoke doesnt look blue though, it looks white, but doesnt really smell like coolant. If my compresssion test goes good, Ill pull the 14b off my Talon and put it on the Galant and see if the smoke goes away.

Any other suggestions?

 

[seth98es]

I did a compression test and got some weird results.

178
174
178
177

Or close to that. Now here is the weird part. The motor is a used JDM 6gvr4 RS motor. 6bolt, 510cc injectors, and the b16g stock. Shouldnt the compression be 164 or did the RS use higher compression pistons?

The lower IC piping was filled with oil, it did not ready the FMIC though. Also a bit of oil in the downpipe, hence the smoke. I havent taken the turbo off the car yet, but will do so this week.

 

[seth98es]

This sucks, pulled the turbo off and the exhaust manifold. On the head, the cylinder 3 and 4(furthest from timing belt) exhaust ports were wet with oil and the first 2 ports were dry. Now does this mean my valve seals are bad? How can I tell for sure? There seemed to be oil in the exhaust side of the turbo and the 02 housing. I just need some of your guys sugestions before I go and buy that expensive tool for the valve seal replacements.

 

[trbotaln]

Your turbo looks blown to me. You could be passing coolent or oil through the turbo and that is the reason you see smoke out of the exhaust. It is hard to tell from your pics, but it looks like the compressor wheel also might have hit the housing. Check to see if it has any shaft play, and see if it spins freely.

 

[seth98es]

It spins freely, and theres little to none shaft play. What else besdies bad valve seals could cause oil in the ehxaust ports?

 

[GVR4592]

Valve seals and piston rings would be the first thing I would look at but since your compression seems to be fine then it's probably not the piston rings. White smoke usually indicates coolant or water in your combusiton chamber, black smoke is usually oil or fuel. You should performa leakdown test to determine where the problem is.

The Galant RS engine you have is a Galant Evolution RS VR4 engine and the compression is 7.8:1 just like all of the other 6 bolt engines.

 

[seth98es]

Well I am about to give up and part out my stupid car.

I cant even get the compressor housing out of the turbine housing! How pathetic is that. So compression in the 174-178 range when its supposed to be under 164, how can you explain that? I think I got royally screwed on the engine, paid $1600 shipped and it comes with bad valve seals, wrong compression, and a blown b16g.

I dont know wtf I was thinking when I started this swap

 

[RiceKiller_TSi]

Maybe I can shed some light on the subject since I had the EXACT same thing happen to my car last year.

Thick white smoke is usually oil. And it stinks big time! If you have a filter on your valve cover REMOVE IT! Then see if your problem clears up. Most of the filters people use dont allow enough ventilation and will cause "backpressure" that will force oil past your turbo seals making it appear to be "bad". Also "replace" your pcv valve for safe measure.

In order to be sure you have the problem pegged down you'll want to clean all that oil out of your intercooler. You'll most likely have a half quart of it in there blowing into your intake and getting into the cylinders.

Your compression is good. If you had head problems you wouldn't have a gallon of oil in your compressor housing because most of it is being burned.

Holla.

 

[seth98es]

Thanks man. Before I had the breather/pcv setup like the Taboospeed shop diagrams(breather connected to PCV) which would have allowed NO ventilation. Now I put in a new PCV which is routted to the intake mani, and a filter on the breather line. Just got doen swapping over the 14b off my talon. I havent taken apart my b16g yet, but I hope its not bad like you said. Im going to go put my spark plugs back in and fire it up, see how she runs. Thanks for your guys help, Im glad Im no mechanic, I could never have done this swap from the help of you guys and a few other galant guys

 

[seth98es]

Started it up just fine, no leaks or anything. Just running with no exhaust at the moment. No smoke really, except it looks like a little bit of oil that was left over is being burned. Im still going to take the b16g apart, make sure nothing is wrong with it.

I havent ran the car for very long yet because my batts in my Palm died and I just had to reinstall my Pocketlogger. Going to go back now and make sure everything warms up fine, then take it for another test drive

 

[RiceKiller_TSi]

Glad to see you're up and running smokeless!

 

[seth98es]

Im glad too. Im going to try to see if Forced Performance will take my b16g in as partial credit towards one of their 18g cartidges.

 

[ACKERSON]

Most of the filters people use dont allow enough ventilation and will cause "backpressure" that will force oil past your turbo seals making it appear to be "bad".

I'm a little confused. Can you explain how a breather filter can cause oil to be forced through turbo oil seals. The only way I can see that happening is if there is a significant amount of combustion gasses entering the crankcase and the pcv valve not working properly.