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Author Topic: Hpfp issues  (Read 748 times)

Offline paulmk5gti

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Hpfp issues
« on: May 09, 2013, 11:33:10 am »
As above bought hpfp with upgraded internals from someone on here. Had pump fitted and massive fuel leak from the front of pump! So fix that leak! Then yesterday tryed the pump again and no fuel pressure. At idle I have 7bar of pressure when requested is 50bar! Witch suggests knackered pump. So reinstall my old pump and at idle I get 50bar! Have tryed to contact the seller but no replys at all. Any suggestions on what to do next ? ??????
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Offline scopes

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Re: Hpfp issues
« Reply #1 on: May 09, 2013, 01:16:12 pm »
take it apart and rebuild it

then start to try fittings of your old working pump  :happy2:

good luck man!
If it's not broke, Mod it.....



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Offline bacillus

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Re: Hpfp issues
« Reply #2 on: May 09, 2013, 04:49:35 pm »
Who did you get the pump from??
Without traction power is nothing!

Offline paulmk5gti

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Re: Re: Re: Hpfp issues
« Reply #3 on: May 09, 2013, 05:04:25 pm »
Who did you get the pump from??
pm'd

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Offline W8 Performance

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Re: Hpfp issues
« Reply #4 on: May 09, 2013, 10:28:22 pm »
It doesn't look like he has been online since the 3rd.

I would suggest stripping it down and rebuilding it.

There are instructions here - http://www.autotech.com/mm5/instructions/i127100k.pdf

More pics here - http://www.autotech.com/download/2.0TPump/FuelPump.zip

I hope it's nothing too serious and just needs a clean up.

Rob :happy2:


Offline paulmk5gti

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Re: Re: Re: Hpfp issues
« Reply #5 on: May 10, 2013, 05:51:51 am »
It doesn't look like he has been online since the 3rd.

I would suggest stripping it down and rebuilding it.

There are instructions here - http://www.autotech.com/mm5/instructions/i127100k.pdf

More pics here - http://www.autotech.com/download/2.0TPump/FuelPump.zip

I hope it's nothing too serious and just needs a clean up.

Rob :happy2:
thanks Rob .
Is there any way to tell if the internals are upgraded after I disassemble the pump any markings etc?   Regards Paul8)

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Offline dokez

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Re: Hpfp issues
« Reply #6 on: May 10, 2013, 07:00:16 am »
Autotech, the piston has a step up, and oem one is just 1 straight size. Youll havet to pull it out of the hpfp to see it.

Offline paulmk5gti

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Re: Re: Re: Hpfp issues
« Reply #7 on: May 10, 2013, 07:10:15 am »
Autotech, the piston has a step up, and oem one is just 1 straight size. Youll havet to pull it out of the hpfp to see it.
spot on thanks for the info :)

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Offline W8 Performance

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Re: Hpfp issues
« Reply #8 on: May 10, 2013, 07:37:10 am »
When you strip it down you will find it also say autotech on the part and has a serial number.