Smoking 1g, low compression

[chipchip]

I just got a 92 Plymouth Laser fwd turbo auto and it has more problems than what i thought. The valve cover is very pressurized, if you take the oil cap off while running or the vacuum tube that runs to the intake it shoots white smoke out. It is very low on power as well.

I did a compression test and cylinder 1 is 190, 2 is 195, 3 is 105, and 4 is 90. So it leads me to believe that the head gasket is bad and possibly shooting pressure up through the oil galleries. The smoke is really thick and white, doesn't coolant burn white? The turbo looks and I was told is new on the car. But that doesn't mean that it doesn't leak oil. I want to do a cylinder leakdown test as well before I pull the head to better pinpoint the problem.

If you have any ideas or experienced the same thing please help me out! This is my first DSM. Thanks in advance.

YouTube - Smoking Laser (video of the smoking)

 

[Lofty]

From what you said. I would go with head gasket. For sure.
Coolant burns white, does it smell sweet-ish? (LIKE CANDY!!!! )

 

[chipchip]

I will have to check it after work today. But i think it smells more like oil. The car is leaking or burning a whole bunch from somewhere so i have to put more in before i start it. The ground is all wet and the downpipe is wet as well. (with oil)

Well i pulled the manifold and turbo. Turns out its a new small 16G turbo with a mitsubishi stamp on the hotside. Cylinders 1,3,and 4 have oil coming out of the head and into the manifold. Inside The compressor and hotside was oil, along with all the piping that runs to the intake. Cylinder 2 has a little bit of oil but hardly any compaired to the other 3. My next step is to pull the head an look in there and see how the cylinder walls look. A cadillac tech at work told me to put a little bit of coolant in each cylinder with the head removed to see if it leaks through. If it does then the rings are bad. Let me know what you guys think. Oh yea im also getting a 2g manifold from my buddy at work tomorrow for 20$

 

[jays92tsi]

Sounds like you have two problems. Bad head gasket and bad valve seals. Good time to replace valve seals since the head has to come off anyway. I would also recommend doing oil port mod also.

 

[chipchip]

Whats the oil port mod?

Would valve stem guides cause it to leak oil as well or just the seals? I'm going to get a head gasket set from auto zone for like 80$ then I need to get head bolts. I ended up buying the 2g O2 housing and started porting it, I'm going to finish that and port the turbo and look for a 2g manifold. So if anyone has one for sale cheap let me know, or I guess I can just port my 1g and throw it back on.

Well I got the head pulled and the gasket looks fine, no rips or tears. The head also doesn't look to be cracked or warped. There is a bit of the piston missing in i believe cylinder 4 and the heads have weird gauges on them. The piece is missing on the outer edge of the piston, also the pistons say 0.50 on them. Are they oversized? This engine looks like it has a new head gasket on it and the cross hatches from the hone look fresh. Should I pull the engine and rebuild? Would it be ok to find used oversized pistons and run new rings?

<a href="http://s379.photobucket.com/albums/oo239/ioldflewcfh/?action=view&current=2010-06-19223711.jpg" target="_blank"><img src="http://i379.photobucket.com/albums/oo239/ioldflewcfh/2010-06-19223711.jpg" border="0" alt="Photobucket"></a>

<a href="http://s379.photobucket.com/albums/oo239/ioldflewcfh/?action=view&current=2010-06-19223731.jpg" target="_blank"><img src="http://i379.photobucket.com/albums/oo239/ioldflewcfh/2010-06-19223731.jpg" border="0" alt="Photobucket"></a>

Also coolant leaks past all the pistons as well but really fast in the messed up cylinder. The 3rd cylinder is kind of fast, and the other 2 are pretty slow. Fast being about 2 minutes, slow being 10-20

 

[niki_talon]

I just got a 92 Plymouth Laser fwd turbo auto and it has more problems than what i thought. The valve cover is very pressurized, if you take the oil cap off while running or the vacuum tube that runs to the intake it shoots white smoke out. It is very low on power as well.

I did a compression test and cylinder 1 is 190, 2 is 195, 3 is 105, and 4 is 90. So it leads me to believe that the head gasket is bad and possibly shooting pressure up through the oil galleries. The smoke is really thick and white, doesn't coolant burn white? The turbo looks and I was told is new on the car. But that doesn't mean that it doesn't leak oil. I want to do a cylinder leakdown test as well before I pull the head to better pinpoint the problem.

If you have any ideas or experienced the same thing please help me out! This is my first DSM. Thanks in advance.

YouTube - Smoking Laser (video of the smoking)

I have the same problem with my Eagle Talon TSi 6 bolt. Smoking and low compression. Please Help 4G63 blown head gasket or something serious?

Idle vacuum 12inHg.
Compression test:

Cylinder 1: 100psi
Cylinder 2: 170psi
Cylinder 3: 170psi
Cylinder 4: 170psi

Help 4G63 blown head gasket yes or no ? - YouTube

 

[Diamond Star Werks]

OP deff with a chipped piston you will need to replace at least that one. Replace all if preferenced. Used ones can be okay as long as they are in good shape. No scaring on the sides, no cracks anywhere, and no impact marks on the top. .50 does mean they are oversized so you will need to get the same sized piston and have a machine shop check it out to be sure they will work good. My machine shop waited till my pistons arrived before they bored my block as they wanted to be sure to bore each cylinder to match each piston. It doesn't usually cost much to have the head checked. I had mine checked out for 35$ and resurfaced for 45$.

To @niki_talon If you really want to be solid sure of a blown head gasket before taking your head off use a block tester. Block Tester | AutoZone.com

 

[niki_talon]

MJcanada Thanks, Bro

 

[teampruven01]

Well I got the head pulled and the gasket looks fine, no rips or tears. The head also doesn't look to be cracked or warped. There is a bit of the piston missing in i believe cylinder 4 and the heads have weird gauges on them. The piece is missing on the outer edge of the piston, also the pistons say 0.50 on them. Are they oversized? This engine looks like it has a new head gasket on it and the cross hatches from the hone look fresh. Should I pull the engine and rebuild? Would it be ok to find used oversized pistons and run new rings?

I just got a head from J&C on ebay.completely remanned. It's 300 dollars and they ship it free. They also pay for free shipping for your core to come back. comes with cams and all. The only thing you need is cam seals. I would do that with a cometic head gasket and some ARP studs while your at it. Total it cost me about $480. After doing that my turbo was helping with the smoking so I got a new 16g as well, but my car was doing exactly what yours is doing.

 

[Blindmouse]

I have the same problem with my Eagle Talon TSi 6 bolt. Smoking and low compression. Please Help 4G63 blown head gasket or something serious?

Idle vacuum 12inHg.
Compression test:

Cylinder 1: 100psi
Cylinder 2: 170psi
Cylinder 3: 170psi
Cylinder 4: 170psi

Help 4G63 blown head gasket yes or no ? - YouTube

Broken or stucked piston ring i think..

 

[JamesH]

Niki. I would suggest also doing a leak down test. Judging by your compression numbers and the bubbling coolant I'd go head gasket but at 12in of vacuum you could have a valve issue as well.

 

[92mitsubishi]

sound like head gasket, vavle seats, and/or blow by( bad rings)

 

[P3Kans DSM]

I have this same problem. Mine is oil leaking out the o2 though. I'm going to do a compression test and see how bad it is. Any chance you got a leakdown test done I didn't see if you did or not.

 

[91gsx123]

bubbles in coolant and lots of blow by points to head gasket niki_talon.

As for chipchip, I would say your looking at a full rebuild on the bottom end at least. I would also replace the valve seals as well while you have the head off.

 

[Diamond Star Werks]

Well niki I just watched the video as I didn't before but with coolant pushing out like that you deff have a HG problem. And with it smoking out of the dipstick and valve cover like that you seem to have both blow by past the rings and some valves not seating right. Your head will deff need to come of. You will want to have your head check out as it seems you will need a valve job done. One or more of your rings are worn out it seems. So you will most likely need a new set of rings. Though before you go and buy anything have it all check out as your cylinder walls may be worn down some.

 

[niki_talon]

Hi guys, Thanks for help!
Today I made a new video on cold start.

4G63 Cold start - YouTube

I really don 't know what happens to my car.
This week I will open my engine. I hope it is only blown head gasket,but I think the problem is more serious.Until now I never divided the head from the block. Maybe it's time!

 

[JamesH]

This video doesn't show any bubbling in the coolant. That looks normal. Mainly the waterpump just flowing water. Besides the fact it's brown. Which could be rusty coolant or you're using Dexcool.

Regardless, that's an awful lot of blow by and you may have a ring issue.

 

[niki_talon]

This video doesn't show any bubbling in the coolant. That looks normal. Mainly the waterpump just flowing water. Besides the fact it's brown. Which could be rusty coolant or you're using Dexcool.

Regardless, that's an awful lot of blow by and you may have a ring issue.

Tomorrow morning I'll open the engine

 

[niki_talon]

Hi guys, today I opened the engine

Head gasket - good
The problem with vacuum 12inHg - Broken exhaust manifold
Cylinder 1 - Broken piston
Cylinder 2 - good
Cylinder 3 - Broken ring
4 Cylinder - good