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4. spark plug lubrication in the combustion chamber

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08.05.2020 19:13 # 1
yasin26
206 2000 model 1.6 8v roland garrosum
Last month, I had problems such as low traction in the vehicle, the speed not exceeding 90 km, late working, the temperature that did not exceed 90 degrees, and the temperature of the spark plug in the 4th combustion chamber melted and the porcelain exploded. In my performance, I found that the spark plug in the 4th combustion chamber was greased. I replaced the spark plug with another spark plug, the result is the same lubrication again. Then I looked into the engine through the spark plug hole with a thin camera and the only difference I saw was the other combustion chambers. The gears were greasy in your opinion. What do you think the problem might be? Some says segment, some says engine rectifying but there is no problem in other combustion chambers. There is no oil burning in the car. If the engine is dead, the old spark plug should not explode if the piston oil is missing.
Photos
The spark plugs we first replaced exploded on the passenger side of the 4th
Then, the spark plugs that we installed 700 km
the top of the 4th piston

4. spark plug
yasin26 2015-04-19 23:19:08
08.05.2020 19:13 # 2
madblueblacksea
I think of two reasons for the problem. The first is that it may have broken circlip. Secondly, the main problem with the 4th spark plug is that the porcelain has broken and fell into the cylinder and scratched the surface of the cylinder. In both cases, that is, if the segment is broken, the part that breaks from the spark plug enters between the cylinder and the piston, it scratches the cylinder and causes oil to enter. I think the easiest and most accurate way to understand this is to take the compressor test.
08.05.2020 19:13 # 3
emresensoy307
Bole was a problem 98 reni 19 and the spark plug was a permanent source where the spark plug was going to be a continuous vehicle singularly. We changed the spark plug every 2 months.
08.05.2020 19:13 # 4
yasin26
I will share compression results today
08.05.2020 19:13 # 5
yasin26
compression of all pistons was equal in compression test
08.05.2020 19:13 # 6
yasin26
Do not you have friends who will help such a problem?

08.05.2020 19:13 # 7
madblueblacksea
Let me ask your friend (auto mechanic) tomorrow. Let's see what he has.
08.05.2020 19:13 # 8
slhyldz
When you start the engine cold for the first time, is there any increase in the volume? (Valve sound)
Due to the heat you experience, the deformation of the seals in the valve seats comes to my mind.
We've seen the same thing in a fierce peugeot before. They had a half engine built.
If so, it costs around 750-800 TL.
08.05.2020 19:13 # 9
madblueblacksea
[QUOTE = slhyldz] Is there an increase in volume when you start the engine cold first? (Valve sound)
Due to the heat you experience, the deformation of the seals in the valve seats comes to my mind.
We've seen the same thing in a fierce peugeot before. They had a half engine built.
If so, it costs around 750-800 TL.
[/ QUOTE]

a good experience. has not yet made another place where oil can enter
08.05.2020 19:13 # 10
yasin26
I listened to the engine a lot, but there is no change of sound, always the same. On the way to the road, when the engine malfunction lamp was lit, they said it was caused by the lpg. first we will try the ignition coil, the engine will be turned on
yasin26 2015-04-22 23:28:51
08.05.2020 19:13 # 11
palet
Similar failure happened to me in Reno-scenic. The reason was determined as the ignition coil getting wet and not firing. The plastic cover that covers the coils / spark plugs that should be on the top of the engine was not in my car. (each spark plug had its own ignition coil) We solved the problem by replacing the oring (gasket) of the ignition coil. fuel was going to the cylinder but the spark plug was lubricated because it did not ignite from time to time. Wet rust stain around the coil etc. before turning on the engine. You'd better check it out.
08.05.2020 19:13 # 12
murat222
I also changed the valve seal shims, the timing and the circulation pump, and it kept a total of 880tl last year.
08.05.2020 19:13 # 13
yasin26
I changed the ignition coil, installed a new coil, let's see 500 600 km later, and I will take a look at the new spark plug.
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