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Fuel pressure on VST fuel pump

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 PostPosted: May 1st, 2012, 2:53 pm   
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Joined: April 14th, 2012, 5:59 pm
Posts: 564
Can anyone tell me how to test the fuel pump on a 300 promax for consistancy?


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 PostPosted: May 2nd, 2012, 7:27 am   
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Joined: April 4th, 2012, 10:08 am
Posts: 626
We will have to go for many rides and high speed test passes to ensure the pump is in good working order. :D

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 PostPosted: May 2nd, 2012, 7:32 am   
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Joined: April 4th, 2012, 10:08 am
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Check this link Jay. Not sure what issues your having, if any, but it's good conversation.

http://forums.iboats.com/showthread.php?t=425353

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 PostPosted: May 2nd, 2012, 8:53 am   
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Joined: March 31st, 2012, 5:53 pm
Posts: 3548
Location: Lapping lil charger
You need the proper gauge/tool but there should be a schrader valve (tire valve) on the "out" or pressure side of the fuel system. You patch in there and you should be able to see what the high pressure side is doing. Paul has the tool I'm sure as would any merc dealer (if they know how to use it is another story)...if you want it to run.....

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 PostPosted: May 4th, 2012, 5:59 pm   
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Joined: April 9th, 2012, 5:58 pm
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PM me yer e-mail address and I'll e-mail you the factory manual.


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