4AGE TVIS engine smoking

[opp61]

Buds,

Need some info on the following.

My 4AGE TVIS which has been ported and balance started having this issue. It smokes when the car heats up. Under normal driving circumstances, it is fine however after 5 min of wacking, there will be a sudden gush of white smoke from the exhaust and this will normally foul up the plugs. The car will then sound like it is running on three cyld. The normal quick fix is for me to change the plug then evething is fine. however after another 5 min of wacking, the plugs will foul again.

Open up the head and did an inspection. No noticeble ware on the piston rings, main bearings or sleeves. There is however very light oil in the intake manifold but manifold 4 has the most. This is the location where the plug is fouled with oil .

I guess this would probaby mean gas blowback. Any idea if this can be caused by hairline cracks on the sleeves? Kinda hard to see with the naked eyes.

Comments please.

Thx

 

[azuaneman]

My car also smoking at the beginning START the engine, but it just 1-3 sec only, white smoke. I already ask a few of my friends, some said valve/head. Currently don't have time to go and check since $$$

But as always, every start-up (when engine cool), the will be a "wap" flowing out thru the exhaust, and became like a smoke :)

 

[AE82GT]

if cold start that's shud be normal....

 

[BDK8671]

if smoke run out from ur car ......sure something happening edi ....

white smoke = most likely need to change the valve seal ....
blue / black smoke = piston or piston ring .....finish la ...sure makan minyak hitam edi .....LOLz ...
Moisture smoke ( while start at morning ) = air n fuel mixture is nice ....hehe ....engine normally is in good condition la ....

juz my 2 cent la ...

 

[opp61]

All

Thx for the quick reply.

It is not only smoke in the morning. There is normally no smoke at all. Only after hard driving for 5 min then there is the blow back sensation and the car will be smoking really bad. It just white smoke. Like I said earlier, only piston 4's plug is the one that is most fouled with oil. Change plug ok tilll I wack it again.....aiyoh..kepala pening.

 

[sexycar]

time for engine kosong!! :rolleyes:

 

[chinozie]

time for engine kosong!! :rolleyes:

hahahaha...agree...

 

[opp61]

Bud

Yeah thanks.

Freaking pokkai already. This car is really a black hole man. After all the money spent, better to just buy an old satia and convert to RWD. Cheaper and faster . Crap!! heeeh

 

[chinozie]

did you overhauled completely or just do the PNP ?

 

[n0th1n]

he mentioned balanced engine.... should be completely

 

[azuaneman]

[AEU86] EU AE86 community :: DIY: 4age Valve Stem Seals.
some information DIY changing valve seal ... :)

 

[chinozie]

he mentioned balanced engine.... should be completely

owh...didn't noticed that...

opp61 - what engine oil and what's the thickness ?

 

[opp61]

owh...didn't noticed that...

opp61 - what engine oil and what's the thickness ?

Bud

Its 15W 50 semi syn. Anyhow, doing a full overhaul as we speak. Engine is in pieces. Will update next week how it goes. Really really odd problem I have with this engine.

Lets see what happens.

Here are some of the pics of my engine in pieces.....

 

[dreamboy]

All

Thx for the quick reply.

It is not only smoke in the morning. There is normally no smoke at all. Only after hard driving for 5 min then there is the blow back sensation and the car will be smoking really bad. It just white smoke. Like I said earlier, only piston 4's plug is the one that is most fouled with oil. Change plug ok tilll I wack it again.....aiyoh..kepala pening.

Hi, you try to check the oneway valve at the valve cover there whether ok or not. Also try to remove the breathing tube from the valve cover to the manifold one, replace with a small air filter for the valve cover breathing tube with out connect the tube to the manifold or connect the valve cover tube before the throtle. Just connect at the air filter Air ram there. If the valve cover breathing not fast enough also may cause the problem you mention.

 

[opp61]

Hi, you try to check the oneway valve at the valve cover there whether ok or not. Also try to remove the breathing tube from the valve cover to the manifold one, replace with a small air filter for the valve cover breathing tube with out connect the tube to the manifold or connect the valve cover tube before the throtle. Just connect at the air filter Air ram there. If the valve cover breathing not fast enough also may cause the problem you mention.

bud

thx for the recommendation. I hv seen those small k&N breater filters . MAybe will get one for the valve cover breather. How about the manifold side? Leave it open?

Also, can you please elaborate how this can cause the problem I am facing ?

 

[dreamboy]

bud

thx for the recommendation. I hv seen those small k&N breater filters . MAybe will get one for the valve cover breather. How about the manifold side? Leave it open?

Also, can you please elaborate how this can cause the problem I am facing ?

The manifold side used a cap to close it dun used. when you remove your plug cable you see any oil inside the spark plug hole?

What I am notice. The valve cover with one way valve side the air is suck to manifold but the other side the air is blow out from manifold to the valve cover. May be during hard whacking generate pressure inside the valve cover and the pressured no way out just squeeze the oil any where else. This is what I have experience before, but mine is not 4A-GE but 4A-FTE. after i remove the breathing tube from manifold problem solve. No smoke anymore.

 

[opp61]

The manifold side used a cap to close it dun used. when you remove your plug cable you see any oil inside the spark plug hole?

What I am notice. The valve cover with one way valve side the air is suck to manifold but the other side the air is blow out from manifold to the valve cover. May be during hard whacking generate pressure inside the valve cover and the pressured no way out just squeeze the oil any where else. This is what I have experience before, but mine is not 4A-GE but 4A-FTE. after i remove the breathing tube from manifold problem solve. No smoke anymore.

bud

Yeah this is. Mainly in cldy and plug 4. The rest hv a little.

U hv the same problem after wacking? My problems occur in the following sequence

1) Wack for 5 min
2) Big puff of white smoke
3) Car jerks and sounds like a it is running on 3 clyd.
After car cooling down, remove plug 4 and it is alright.

Yours the same?

 

[dreamboy]

bud

Yeah this is. Mainly in cldy and plug 4. The rest hv a little.

U hv the same problem after wacking? My problems occur in the following sequence

1) Wack for 5 min
2) Big puff of white smoke
3) Car jerks and sounds like a it is running on 3 clyd.
After car cooling down, remove plug 4 and it is alright.

Yours the same?

My problem is when i whack it full throttle during full boost and suddenly release accelerator it will puff alot of white smoke, and my valve cover and spark plug hole squeeze out some oil. But I do not have the symptom Car jerks and sounds like a it is running on 3 clyd. Do you notice that your muffler got a lot of oil spit out??

You said that your cylinder number 4 are the most oily? cause of the oil squeeze into the cylinder 4the most due to improper combustion and cause your car jerk like running with 3 cylinder, and the engine oil burning in the combustion chamber cause the white smoke puff out. My problem occur at cylinder number three at 1st after that more worse include cylinder number one also and so on. But problem solve after I remove the breathing tube from the head cover to the manifold. you go and try 1st no harm.

 

[opp61]

Bud

Will try it next week when I get the car back from the shop. Will update you.

Thx alot.

 

[dreamboy]

Bud

Will try it next week when I get the car back from the shop. Will update you.

Thx alot.

Wish your 4A-GE soon recover and ready for battle....

 

[opp61]

Wish your 4A-GE soon recover and ready for battle....

Bud

Check with the mech today, he did check the bleeder valve on the valve cover and it was ok. No blockages.

Anyhow, engine is being rebuild. Like I said will update once it is ready and run in. Keeping my fingers crossed.

Thx.