1976 115 300D running rough - Mercedes-Benz Forum

 
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post #1 of 1 (permalink) Old 07-24-2010, 07:39 PM Thread Starter
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Post 1976 115 300D running rough

hi

the old girl is idling rough

she starts right up, then
got a little tapping noise coming from the engine
she will run for 10 minutes then when she reaches full operating temp the oil pressure slowly drops as she gets warm and the oil pressure will drop to around the 5 mark then she will stall

anyone any ideas?

done a diesel purge today. didnt cure the problem.

friend says it may be the oil pump or oil pump screen is blocked?

could it be the injector pump?

or maybe oil in the vacuum lines running to the ignition switch?

any ideas would be much appreciated

thanks
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