OM606A start probs when above 85C...
OM606A start probs when above 85C...
There is something fishy going on...
OM606A, kkk14, DP7.5mm, egr removed, ca 275hp, 300.000km
Starts fine when cold, also in -15C in winter, so compression should be ok.
Ok idle running, normal nailing. Goes good as long as I dont stop it.
When warmed up to ca 85C, it can crank forever, some puffing in exhaust.
No blinking on red/green rear mirror leds during cranking.
When it stands still long enough to cool down to 60-70C it starts again.
I started to analyse problem. I had lots of bubbles in plastic tubing, due to fuel breathing valve was stuck.
Getting vakuum i fuel tank that pulled fuel back to tank when motor stopped.
Changed breathing valve, all o-rings, bypassed fuel heater; no more bubbles.
Changed crank position sensor, just in case.
Changed dieselfilter.
Changed starter, since old was worn out.
Maybe temp related, but not sure.
No error messages in Star.
What can it be??
Cheers, Tom
Hi!
There is something fishy going on...
OM606A, kkk14, DP7.5mm, egr removed, ca 275hp, 300.000km
Starts fine when cold, also in -15C in winter, so compression should be ok.
Ok idle running, normal nailing. Goes good as long as I dont stop it.
When warmed up to ca 85C, it can crank forever, some puffing in exhaust.
No blinking on red/green rear mirror leds during cranking.
When it stands still long enough to cool down to 60-70C it starts again.
I started to analyse problem. I had lots of bubbles in plastic tubing, due to fuel breathing valve was stuck.
Getting vakuum i fuel tank that pulled fuel back to tank when motor stopped.
Changed breathing valve, all o-rings, bypassed fuel heater; no more bubbles.
Changed crank position sensor, just in case.
Changed dieselfilter.
Changed starter, since old was worn out.
Maybe temp related, but not sure.
No error messages in Star.
What can it be??
Cheers, Tom
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