OM642 Misfire and White Smoke

[mioba]

Just out of interest who fitted the pump.

 

[hamodi]

That looks quite possibly scrap.

Far from it, mate! I decided to try my luck, I was certain that the rocker arms must have broken when cranking as opposed to driving at speed as symptoms occurred straight after changing pump.

As a last resort before considering a cylinder head replacement, I decided to replace the rocker arms with new ones and got a spare camshaft fitted then put everything back together again. Compression test passed. She starts, idles so smoothly, firing on all 6 with full performance restored. Only thing is she continued to chuck out white smoke from the exhaust so I thought my repair had failed. But then it stopped after 20 minutes - must have been all the unburnt diesel sitting in my exhaust that bank 2 couldn't ignite due to no compression.

I've been driving her for over a week now on my daily 90 mile round commute from London to Surrey and she's happily averaging 43mpg and still accelerates to 60 in around 7s

It has been a long one, I've learnt a lot about diesels and in particular this engine and would like to thank you all for helping me get back on the road.

Until next time

 

[LostKiwi]

Far from it, mate! I decided to try my luck, I was certain that the rocker arms must have broken when cranking as opposed to driving at speed as symptoms occurred straight after changing pump.

As a last resort before considering a cylinder head replacement, I decided to replace the rocker arms with new ones and got a spare camshaft fitted then put everything back together again. Compression test passed. She starts, idles so smoothly, firing on all 6 with full performance restored. Only thing is she continued to chuck out white smoke from the exhaust so I thought my repair had failed. But then it stopped after 20 minutes - must have been all the unburnt diesel sitting in my exhaust that bank 2 couldn't ignite due to no compression.

I've been driving her for over a week now on my daily 90 mile round commute from London to Surrey and she's happily averaging 43mpg and still accelerates to 60 in around 7s

It has been a long one, I've learnt a lot about diesels and in particular this engine and would like to thank you all for helping me get back on the road.

Until next time

Sounds to me that you were very very lucky!

 

[bembo449]

if he didn't fit the pump himself , I think he deserved a bit of luck LK