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Offline range17

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cold engine cough
« on: November 27, 2011, 18:07:42 »
As title really ,any ideas why my 200tdi engine [coughs] on tick over when cold but runs fine when warm ,tried another set of injectors and lift pump .

Rob
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Offline range17

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Re: cold engine cough
« Reply #1 on: December 13, 2011, 12:54:29 »
dont suppose anyone has a spare injector pump i could try that lives nearby (bedford)  :grin:
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Offline lambert

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Re: cold engine cough
« Reply #2 on: December 13, 2011, 20:22:04 »
I think we may have had this before but if you were in bradford I may be able to help more. That said the consensus does seem to be that they are best serviced by a Bosch dealer.
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Offline range17

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Re: cold engine cough
« Reply #3 on: December 13, 2011, 21:34:57 »
dont want to have pump serviced if it is not my problem
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Offline JIMBOBLY

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Re: cold engine cough
« Reply #4 on: December 14, 2011, 20:10:29 »
could be something stupid like the diaphram in the prima pump knackerd,letting the diesel flow back slightly
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Offline range17

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Re: cold engine cough
« Reply #5 on: December 14, 2011, 22:45:13 »
Quote from: JIMBOBLY on December 14, 2011, 20:10:29
could be something stupid like the diaphram in the prima pump knackerd,letting the diesel flow back slightly
Do you mean lift pump ?if so then i have fitted another one of them  :undecided:
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Offline JIMBOBLY

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Re: cold engine cough
« Reply #6 on: December 16, 2011, 21:24:43 »
sorry mate,im bein a bit dense,with workin on loads of other stuff,i meant the prima pump on fuel filter housing,but they dont have them,if you have a "lift pump",lol,sorry :rolleyes:
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Offline range17

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Re: cold engine cough
« Reply #7 on: December 17, 2011, 10:59:17 »
Thats ok mate appreciate any ideas at the moment ,alot of people are saying it happens with there 90 and is normal but it never use to happen so cant see its normal ,trying to find out if there is some sort of cold start setting in the pump that might be playing up .
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Offline JIMBOBLY

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Re: cold engine cough
« Reply #8 on: December 17, 2011, 23:01:06 »
well another thing to try mate,before you go and spend money,is the tappet gaps,the coughing when cold,could be a compression issue,due to incorrect tappet gaps inlet and outlet valves are both 0.20mm,and should be adjusted cold,give that a try,i got a very cheap 200tdi to put in my rangie,because they thought it was knackerd,because gaps were to tight,worth a bash mate
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Offline range17

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Re: cold engine cough
« Reply #9 on: December 18, 2011, 11:49:41 »
Double checked the gaps and were spot on thinking of backing them of just to see if it makes a difference,can't understand why it does it when cold ,if it was air leak or something then it would do it all the time .
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Offline Saffy

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Re: cold engine cough
« Reply #10 on: December 18, 2011, 17:59:42 »
idle speed set too low?

timing slightly off, when was belt last done?

some of the tdi Injection pumps had a cold start spring loaded lever arm thingie on the side and some don't... but I think that relates more to the 300tdi.
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Offline range17

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Re: cold engine cough
« Reply #11 on: December 18, 2011, 20:19:35 »
idle speed is correct when warm and the timing is set using the pins ,plus i have tried some fine adjustment on the timing side of things ,
The belt was new when i rebuilt the engine 250 miles ago .
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