Hi Guys,
I have to ask this as my knowledge is quite UUHM bad.
When I removed my manifold I found a worrying ammount of oil deposit in the manifold . I can not for sure say it is oil as sometime ago some stupid garage put a lot of diesel in my tank to ammount of 20 litres and I just diluted it continiously with petrol until all of it was out.
What is the sure signs of compression ring failure in a engine and what should I look for - signs.
My oil consumption is not bad meaning not even 500 ml on 2000 km.
There is no oil smoke- just at startup and the suspect will probably be valve stem seals.
Any comments please?????
Thanks
Affiliate Member
The mitsu bottom end is almost bullet proof and unless you have overheated the engine the chances of compression ring failure is remote. The best way to test for that is to do a compression test. This might prove to be a bit difficult with half the motor stripped. You can check the cylinders for wear but chances are that you will find it well within mitsu specs.
A puff of smoke at start up is no train smash but if this happens after riding for a while or after running against compression on a downhill or decelerating that could indicate worn valve stem seals. You would probably find that the start up smoke is black or blue indicating a rich mixture where as white smoke points to oil being burnt.
The oily residue in the intake is as result of the breather pipe from the engine terminating in the intake and is a mixture of oil and condensate and unless it is dripping it is nothing to be concerned about as the only cleaning in this area is by the airflow and once in a blue moon when the manifold is removed.
Petrol in a diesel engine is a big problem but diesel in a petrol engine a about 25% volume would only drop the performance and might result in a bit of smoke. Being much dirtier than petrol it could have an effect on your fuel filter and I would change that sooner than usual
A puff of smoke at start up is no train smash but if this happens after riding for a while or after running against compression on a downhill or decelerating that could indicate worn valve stem seals. You would probably find that the start up smoke is black or blue indicating a rich mixture where as white smoke points to oil being burnt.
The oily residue in the intake is as result of the breather pipe from the engine terminating in the intake and is a mixture of oil and condensate and unless it is dripping it is nothing to be concerned about as the only cleaning in this area is by the airflow and once in a blue moon when the manifold is removed.
Petrol in a diesel engine is a big problem but diesel in a petrol engine a about 25% volume would only drop the performance and might result in a bit of smoke. Being much dirtier than petrol it could have an effect on your fuel filter and I would change that sooner than usual
Henk Bannink
Some people are wise, some people are otherwise
Some people are wise, some people are otherwise
Thanks Henk,
I have got to the first head stripped and it looks like the spark plug gaps are very big. Will measure tomorrow to be sure.
The breather pipe shows no signs of oil dripping though and that should confirm your point,
Will remove heads tomorrow and check the pistons. The cams looks good so far no signs of excessive wear or pitmarks.
Thanks
I have got to the first head stripped and it looks like the spark plug gaps are very big. Will measure tomorrow to be sure.
The breather pipe shows no signs of oil dripping though and that should confirm your point,
Will remove heads tomorrow and check the pistons. The cams looks good so far no signs of excessive wear or pitmarks.
Thanks
Hi Henk,
I have got a Triton 3.2 Di-D bakkie with 90 000 km on the clock (2009 MODEL) and went to NAMPO on Wedneday queing for ever and left the bakkie idling whilst waiting. After quite a long wait I noticed that the bakkie was smoking. This disappeared after driving for a while. Could this be the catalyst that overheated? I have heard before that the diesels don't like idling for a long period of time. This is my first diesel and I am not a guru when it comes to the technical stuff.
I would appreciate if you have advise on this this
Thank you
I have got a Triton 3.2 Di-D bakkie with 90 000 km on the clock (2009 MODEL) and went to NAMPO on Wedneday queing for ever and left the bakkie idling whilst waiting. After quite a long wait I noticed that the bakkie was smoking. This disappeared after driving for a while. Could this be the catalyst that overheated? I have heard before that the diesels don't like idling for a long period of time. This is my first diesel and I am not a guru when it comes to the technical stuff.
I would appreciate if you have advise on this this
Thank you