What kind of spark plug fouling is this?

[RigerZ]

Old Proton Saga with Magma engine was misfiring. Found spark plug #4 like this:

 

[titan_m]

Hi RigerZ,

I had a similar problem like you before. That's actually oil sludge buildup. Is your exhaust smoke white in colour?

If so, you're leaking oil into the combustion chamber. It's quite a major problem already. You have to get it rectified with your mechanic.

 

[ken yeang]

it is likely that the plugs had oil deposit. Oil is leaking past the worn valve-guide, or worn piston-rings.....and oil goes into the combustion chamber. Symptoms are very hard starting, misfiring and serious engine hesitation (jerking, stopping, etc)

The plug cannot be used already. Suggest your to repair the mechnical prob....and use a fresh set of plugs....

 

[gunnerzz]

If not mistaken,worn out valve guide seal will only causes smoke at certain condition.
let the car idle for 2-3minutes and then rev the engine.if during idling there are no smoke and when u rev the engine only smoke are produced then its the guide seal.

Yours is magma engine.most probably u needs a top overhaul if the bottom part are in good shape.

 

[vr2turbo]

If not mistaken,worn out valve guide seal will only causes smoke at certain condition.
let the car idle for 2-3minutes and then rev the engine.if during idling there are no smoke and when u rev the engine only smoke are produced then its the guide seal.

Yours is magma engine.most probably u needs a top overhaul if the bottom part are in good shape.

Agree, for valve guide leak, usually after you park the car for some time or overnight. Next start up will have white smoke for a while then will disappear. Will not foul the plugs until that condition.
Most probably piston ring or piston worn...

 

[Izso]

I had this problem before. It's either your coil pack is broken or your valve seals is bad and you need a top overhaul.

Just overhaul la.. this problem is a pain in the ass to troubleshoot because sometimes it's there, sometimes it's not.

 

[ken yeang]

An engine that simple, top overhaul would take half or just one day....

unless there are more hidden surprises discovered during the overhaul.

 

[scoupe]

A top overhaul is recommended. Some times people try to save money and just change the valve seals without removing the head. I dont recommend it. Better to once and for all remove the head and do a proper top overhaul. Make sure to use good valve seals. Seen a few cases less then a year start burning oil due to extremely cheap top sets.

 

[ken yeang]

Buy OEM top-overhaul set. Would just cost a couple of hundred buck....but will last a long time.

Save the trouble replacing sets of plugs and save cost of topping-up engine oil due to leaks.

 

[^pomen_GTR^]

haha..did top overhaul for sohc proton engine within just a few hours (i think around 4-5hours only) because just swapping new head and gaskets...


for valve seal replacement now also certain workshop got special tools to replace valve seal without removing the cylinder head...so a very quick proccess around 3-4hours from start to finish...

 

[AlexKen]

Just do top overhaul.. (If ur piston ring or block still in good condition)
If u got extra $$$.... General overhaul is recommended... Good luck bro!

 

[Rleo6965]

for valve seal replacement now also certain workshop got special tools to replace valve seal without removing the cylinder head...so a very quick proccess around 3-4hours from start to finish...

I have just removed 3 pcs defective valve seals using my own special tool to removed retainer lock without removing cylinder head.

 

[Izso]

I have just removed 3 pcs defective valve seals using my own special tool to removed retainer lock without removing cylinder head.

What the heck!!!! :top: that's what I call true DIY SIFU!!

Where'd you find the round part to compress the springs? Looks like a perfect fit!

 

[Rleo6965]

What the heck!!!! :top: that's what I call true DIY SIFU!!

Where'd you find the round part to compress the springs? Looks like a perfect fit!

The presser was I made from 3" GI Water Pipe. Cut it half length wise to removed window portion and again weld together. This presser was initially use in my earlier design of C Clamp Valve Retainer Lock Remover. Which require a removal of cylinder head of my 4G13 to replace all valve seals.

Here's the video.
https://www.youtube.com/watch?v=ET8k4iFT7Tw

 

[vr2turbo]

I have just removed 3 pcs defective valve seals using my own special tool to removed retainer lock without removing cylinder head.

Fantastic DIY tools.....