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4G64 Spyder smokes like I Seafoamed it,all the time.

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Galaxy

20+ Year Contributor
284
2
Aug 17, 2002
Gainesville, Florida
My Spyder is a 97 with right about 160,000 miles so I know it could use a full rebuild but thats simply not an option.

Compression is at factory specs,190 all the way across.

If I leave the plugs in the head overnight,it will foul every one of them and then I have to replace them to get the car to start,so at night ...I have to back the plugs out so oil doesn't cover them and foul them out.

When I start the car,new plugs or not,the car pours smoke from the muffler and every exhaust leak that it helped me find by doing this.If the car is a little bit warm or hasn't sat all night the smoke isn't so bad and it doesn't foul the plugs.

Do you think replacing the valvestem seals would at least correct my problem of nightly plug fouling?

I'd estimate the car consumes a quart of oil every 200 miles,10W-30.

Any help or thoughts on this would be great!!!!!:sneaky:
 
With that many miles I'd say you might as well rebuild. But getting a used engine and throwing in would be alot cheaper. When I replaced my 4g64 I found a used 2.4 out of a galant for $200 with 70k on it and threw it in.
 
I know it could use a full rebuild but thats simply not an option.

Do you think replacing the valvestem seals would at least correct my problem of nightly plug fouling?


You gave me a suggestion that I said was not an option at this point....unless I rebuild it myself I don't trust it and I can't afford that right now. Some used 70,000 mile engine may have problems of its own.Thanks but no thanks.

If not the vavlvestem seals,what would cause oil to cover my spark plugs on all cylinders overnight?

This seems like it should have a pretty common sense answer but I'm finding lately that "common sense" is becoming rather uncommom,haha.
 
Honestly it sounds like you have a cracked/worn oil rings. That would explain the perfect compression on a high mile motor.;)Have you checked things like the pcv valve. Is there oil in the intake tract.edit: after reading through your original post again it sounds like your stem seals. I missed the part where you said its not as bad if it hasnt been sitting
 
I would have to say its your valve stem seals since its a very common problem, and with your milege thats for sure. you could try to put thiker oil but i dont think its going to help in your case since its leaking that bad. you could try that really thick stop leak.
 
I would have to say its your valve stem seals since its a very common problem, and with your milege thats for sure. you could try to put thiker oil but i dont think its going to help in your case since its leaking that bad. you could try that really thick stop leak.

that or a blown turbo:beatentodeath: that happen to me. does it look like this???? (that is my car)

YouTube - BLOWN TURBO
 
Dude!!! Why didn't I think of the turbo being bad!?!?!?!

It looks exactly like yours....ROFL

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I'm gonna go ahead and replace them valvestem seals,thanks for getting the replies rollin on this one...just was the only thing I could think of that would foul plugs like that.

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It even smokes pretty bad in the engine bay showing me my exhaust leaks like Seafoam would and making me think my cat is blocked or exhaust is nice and restricted in some way.

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But after all this,...why I never thought to check those turbo seals is just beyond me:thumb:

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It's sarcasm on his behalf.

i think he is just full of sh*t cause his car says 92 N/T (with turbo) and his pic is a eclipse year 95-99 and it look like a 6 bolt???? cause if i can remember right the motor should be sitting on the other side. i have a GSX and my motor is on the same side as the one show but looks a lot different obviously
 
I posted back to this SAturday,guess I never hit submit.

Yes NT NO TURBO.

Read the first post it will tell you all that and I'll post more when I get home.

I was screwin with ya about the blown turbo dude.:tease:
 
Are you saying that there is oil in your spark plug wells? As in, you pull the spark wires and the spark boot looks like you just used it as a dipstick?

If so, you have worn seals on the spark plug tubes between the valve cover and the tubes. This is a recurring problem with 4G64's and mine does it too. My friend, who turbofied his spyder GS started blowing TONS of oil out of there. So that explains oil in the spark tubes but that oil should never make it into the combustion chamber through that route.

My car consumes oil, but not at such an alarming rate. Have you checked to be sure that the smoke is oil and not coolant?

Also, if your car is burning THAT much oil, it could maybe foul your cat up bigtime.......

Nice intake :thumb:
 
No,I'm saying the spark plug tubes are bone dry....the only thing that get covered in oil is the tip of the plug or electrode if I leave them in all night like most eveybody does.

I have a honda too and when you put a plug socket on 2 of those it comes out half covered in oil....been like that since I got it 6 months ago.

Thanks for the compliment on the intake bro....pretty proud of that,my dad was even impressed and he's a computer geek.

I need to get a valve spring compressor and and air source and I'll get them seals in.

Also like you said,that cat has got to be blocked as hell....I noticed I get the same gas mileage as in the turbo 92 with a rewired 255.not to mentin my vac gauge hovering before returning to normal.

Bout 200 miles per tank on either one.
 
Anyone else have any thoughts on this other than "that dumbass needs to rebuild his whole motor!"?

I can't afford the valvecover gasket and have still got to track down a valve spring copressor but was wondering if anyone had any further thoughts?

Its also DOES NOT SMOKE ALL THE TIME,only until operating temp,then only if you rev it.

ISC and coolant lines are blocked at the TB.
 
Also, if your car is burning THAT much oil, it could maybe foul your cat up bigtime.......


I'm looking into gutting that thing,the way smoke blasts out of the pre-cat exhaust leaks leads me to believe that that cat is blocked as hell.

We need a "punch the cat" icon,haha!
 
If you want to see if your cat is all plugged, drill a small 1/8" hole at the head of the cat and watch your power really boost up to let you know that your cat is definitely plugged to crap.

Yea, with oily plugs in the morn, do a valve seal job since the seals are prob rock hard, cracked and letting head oil seep down into the cylinders.

I have a '91 Base Eclipse with the 4G37 motor in it and did the same trick your 4G64 does now.

At 137k miles, I did a valve seal job on it. Now, with 198k miles on it, still hold oil pretty tight and plugs are nice and clean.
 
WOW i would say you either bent a valve or burnt up the piston rings. i'd just rebuild the motor, its gonna last longer than a used one
 
WOW i would say you either bent a valve or burnt up the piston rings. i'd just rebuild the motor, its gonna last longer than a used one

A bent valve doesnt cause smoke.
A burnt piston ring will cause smoke all the time.
A rebuild is not an option.

If you want to help or comment, read the whole thread beforehand.

As already stated, try replacing the valve seals. I would also suggest replacing the pcv valve while you are working on it.
 
u got nothing to loose just change the seals i was able to change mine on the 1.8 without pulling the head but on that 16 valve 2.4 u gonna have to pull it good luck keep us posted
 
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