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TR6 fuel pressure problem


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#1 steve m

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Posted 08 August 2018 - 09:50 PM

Evening all, a friend has a CR6 that seems to have a fuel pressure fluctuation problem. He has a Bosch pump kit from Revington ,fitted 2 years ago, but recently has been cutting out and after checking the usual items he did a fuel pressure test . It was low and as he started to adjust the relief valve the pressure dropped !!
Anyone had this problem before ??

Regards. Steve
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#2 DaveN

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Posted 08 August 2018 - 10:49 PM

Fuel starvation? Is the tank outlet clear?
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#3 Mike C

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Posted 09 August 2018 - 03:04 AM

He was closing  the relief valve? Opening it will decrease the pressure at the MU.


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#4 barkerwilliams

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Posted 09 August 2018 - 05:55 AM

Has he checked the voltage at the pump and examined the earth conection to ensure the pump is able to run at full speed to generate the pressure needed?

 

Alan


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#5 stuart

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Posted 09 August 2018 - 09:50 AM

If its an original type PRV then it will probably need a rebuild, they are very sensitive to over adjusting. The diaphragm type with external adjuster are easier to set.

Stuart.


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#6 Kevo_6

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Posted 09 August 2018 - 10:08 AM

There are some small in-line plastic strainers, 1 in the entry to metering unit and one each of the Lucas pump and PRV not sure on the Bosch setup, I had one go soft and collapse which restricted the bore and reduced my pressure.
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Cheers Kev.


#7 steve m

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Posted 09 August 2018 - 07:16 PM

Thanks guys, word tonight is he has cracked it, looks like replacing the wiring to the pump did the trick. Many thanks to you all
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