and my no it wasnt was to AC
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< Ulla>
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DooooH. I read the year at 1995 and that was the cc. 3 years and 20K is still low so these breathers need checking something is not right. As a quick test park on a steep hill put it in second gear and let the handbrake off, you should slowly creep forward with 4 equally spaced and jolts forward implying that all four compression rings are equal. The other possibility is a Head Gasket failure and a pot is leaking into the oil return cavilty in the head and pressuring the crankcase. If you remove the oil filler and place your hand over it, it should not be constantly blowing 'excessive' air out on the rocker cover. Regards Peter
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Thanks Peter, that's what I thought as well. Thanks for bringing it back on topic. Everyone can make mistakes can't they RF ?
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Thanks very much for your suggestions Peter D. He's tried the hand over the oil filler hole - it was blowing - sorry to be pedantic but how do you define 'excessive' ?
The steep hill test will be done tomorrow and I will report back!
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Uncle Ho
You need to have both a compression test and a cylinder leakage test done.
A well-equipped garage will probably have the right connectors - a diesel specialist will have.
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I agree Screwloose I was just going for the quick DIY test first. The diesel guy will probable detect a a leak in at least one pot and stiff excess fumes in the rocker so a HG is probable.
If the OP presses on the filler and your hand pulses not at the firing ( i.e. exhaust note rate but perhaps a quarter or it then the HG has failed. A specials will idenify this is a few minutes.
Regards Peter
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Peter
I was thinking further down. Piston or ring gap issue - though mechanical faults are rare on an HDi.
Maybe even turbo pressure getting in to the crankcase.
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again pasted from email:
Tested the Berlingo on 1 in 4 hill in second. Irregular jerks, approx 1 sec 1sec, 2 sec and 3 secs.
Please thank Peter D and Screwloose for advice.
It is surprising that local Citroen service did not think of this for themselves isnt it?
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Hi Screwloose, Yep considered that but as I thought there is something wrong the Compression/leakage by the DIY test. If that test is repeatable then I'm afraid it is a head off job. I'm afraid main dealers mostly have mechs not techs. Regards Peter
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Peter
If the gasket proves to be perfect - then it's too late for further testing....
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I agree any decent diesel specialist would do a full compression and and leakage test before taking the off as it could even be a cracked head and of coarse a gas emmissions sniff in the from the rocker cover. Regards Peter
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Peter, A note to congratulate you on devising a very clever compression test. I have always done this by pushing the vehicle on level ground, judging the effort required to get the engine over compression. In the days of distributors on petrol vehicles, having identified the weak compression, removal of the distributor cap would show the rotor arm "pointing" to the defective cylinder.
The hill idea is clever because it applies a constant force to the engine. Don't tell the safety nannies about it though - although it should be pointed out that it's easy for a diesel to start up unintentionally if the fuel system is enabled... The Back Room triumphs again for ingenuity.
659.
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