Removing VST Fuel System - 502 MPI
10-22-2016, 08:21 PM
#21
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I am in favor of getting rid of the VST completely - Too many problems years ago. I do not see them anymore coming to me.
Like the Weldon pump and returning the fuel back to the tank - splicing the fuel fill install the return adaptor is what have done in the past for a jist of it.
Like the Weldon pump and returning the fuel back to the tank - splicing the fuel fill install the return adaptor is what have done in the past for a jist of it.
Last edited by BUP; 10-22-2016 at 08:29 PM.
10-22-2016, 08:29 PM
#22
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05-07-2017, 09:33 PM
#23
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Check my posts here how I did the a1000 install. You can use any pump that will suffice
http://www.offshoreonly.com/forums/d...p-removal.html
http://www.offshoreonly.com/forums/d...p-removal.html
06-29-2017, 09:27 PM
#24
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So I had a stalling issues dropping in and out of gear. Took into shop to check computer and I'm being told low fuel pressure. So I went out and ordered new pump, added a efi regulator. So I fired her up in driveway and I'm still only seeing 30 lbs at idle ? Was told I should have 43 . I see it still has a mechanical pump on it. Is this normal? Should I remove that mechanical pump no block that off? my pump wax located on back of block.
Last edited by Force265; 06-29-2017 at 09:29 PM. Reason: Add more
06-29-2017, 10:14 PM
#25
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Wwhat pump and regulator did you get ? And if aftermarket, how did you install it in the system?
06-29-2017, 10:47 PM
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So I had a stalling issues dropping in and out of gear. Took into shop to check computer and I'm being told low fuel pressure. So I went out and ordered new pump, added a efi regulator. So I fired her up in driveway and I'm still only seeing 30 lbs at idle ? Was told I should have 43 . I see it still has a mechanical pump on it. Is this normal? Should I remove that mechanical pump no block that off? my pump wax located on back of block.
06-30-2017, 07:44 AM
#27
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Yes both regulator and pump aftermarket...pump is a Mallory inline 11106m and a phonix efi regulator... out of the bottom side of cool can into pump then pump to reg then fuel rail...return from regulator to fuel filter. I did turn screw in and didn't see any change in pressure.....thanks for the help
06-30-2017, 08:02 AM
#28
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Yes both regulator and pump aftermarket...pump is a Mallory inline 11106m and a phonix efi regulator... out of the bottom side of cool can into pump then pump to reg then fuel rail...return from regulator to fuel filter. I did turn screw in and didn't see any change in pressure.....thanks for the help
You still have the VST module hooked up ? How about the mechanical pump?
Or are you confusing us by having a cool fuel system and this is a VST thread ?
Do you have photos or can draw a diagram exactly how you have it ?
06-30-2017, 08:59 AM
#29
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]Wow...I'm getting more confused... the vst is gone... mechanical pump is there... I was told from the shop that I needed a regulator after fuel pump before rail. Not trying to confuse anyone. I'm the one confused now...lol hope this drawing helps. Thanks for your help 
Last edited by Force265; 06-30-2017 at 09:36 AM. Reason: Picture Won't attch
