Hi everyone.
I hope that someone can help me with the problem I have on my Nissan Micra 1.5 Dci (Renault 1.5dci K9K engine).
The engine has overheated and ran away with me due to an air lock after replacing the thermostat housing and not switching the heater box on while bleeding the cooling system. Now the motor was smoking and I was told that I should look into replacing the turbo. So I bought a Borg Warner Core and replaced the turbo. But the motor still wanted to run away with me after the replacing of the turbo.
We stripped the motor and found that Number 1 Piston was melted away... Note that the motor was still starting first time by the touch of the key.
I took the motor in for machining and replaced the pistons with n good second hand set. The rings was replaced (KS rings) and also the head was pressure test and came back ok. We assembled the motor and installed it into the car just to find that the car don't want to start first time... it takes very very long to start. When it does start it idles good. But after a minute or so the Motor starts to breathe very badly( out of the breather on the tappet cover and the dipstick). I was told to strip the motor again and the engineers said that it could be due to the sleeves being a little oval. So they resleeved the block and we again installed new KS rings.
After assembling the Motor again and installing it into my kar I found that the engine was still taking very very long to start (While cranking). After it starts it once again starts breathing smoke and oil out of the breather pipe and the dipstick. I got the Engineers to come to my place to show to them what the motor is doing. Guy said its like there is no rings on the pistons the way this motor breathes...
Then I was told to take the motor apart again. They checked the rings and sleeves again after all was taken apart and could not find anything wrong. So I was told that lets again try different set of rings... I was at this stage feeling like we are closing our eyes and shooting in the dark trying to get to the problem.
I have decided to go for a second opinion at a different engineering shop and the person came and did all the measurements of the Block, Pistons, Rings, and also Crank and he could not find anything out of spec and he said that the problem must be somewhere else.
They Engineering place said that I must check the EGR. Can the EGR cause sump compression? Mine is not being used in the first place. the car don't have a plug for the EGR in the loom (South Africa Spec).
Can someone please guide me in the correct direction cause as you can see this car is getting the best of me and has cost me a arm and a leg already.
I really need this car and it has been standing for 8 months already due to the Sump compression issue.
Please assist
Thank you in advance!
Hans Swart.
I hope that someone can help me with the problem I have on my Nissan Micra 1.5 Dci (Renault 1.5dci K9K engine).
The engine has overheated and ran away with me due to an air lock after replacing the thermostat housing and not switching the heater box on while bleeding the cooling system. Now the motor was smoking and I was told that I should look into replacing the turbo. So I bought a Borg Warner Core and replaced the turbo. But the motor still wanted to run away with me after the replacing of the turbo.
We stripped the motor and found that Number 1 Piston was melted away... Note that the motor was still starting first time by the touch of the key.
I took the motor in for machining and replaced the pistons with n good second hand set. The rings was replaced (KS rings) and also the head was pressure test and came back ok. We assembled the motor and installed it into the car just to find that the car don't want to start first time... it takes very very long to start. When it does start it idles good. But after a minute or so the Motor starts to breathe very badly( out of the breather on the tappet cover and the dipstick). I was told to strip the motor again and the engineers said that it could be due to the sleeves being a little oval. So they resleeved the block and we again installed new KS rings.
After assembling the Motor again and installing it into my kar I found that the engine was still taking very very long to start (While cranking). After it starts it once again starts breathing smoke and oil out of the breather pipe and the dipstick. I got the Engineers to come to my place to show to them what the motor is doing. Guy said its like there is no rings on the pistons the way this motor breathes...
Then I was told to take the motor apart again. They checked the rings and sleeves again after all was taken apart and could not find anything wrong. So I was told that lets again try different set of rings... I was at this stage feeling like we are closing our eyes and shooting in the dark trying to get to the problem.
I have decided to go for a second opinion at a different engineering shop and the person came and did all the measurements of the Block, Pistons, Rings, and also Crank and he could not find anything out of spec and he said that the problem must be somewhere else.
They Engineering place said that I must check the EGR. Can the EGR cause sump compression? Mine is not being used in the first place. the car don't have a plug for the EGR in the loom (South Africa Spec).
Can someone please guide me in the correct direction cause as you can see this car is getting the best of me and has cost me a arm and a leg already.
I really need this car and it has been standing for 8 months already due to the Sump compression issue.
Please assist
Thank you in advance!
Hans Swart.