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Mar 2, 2025 | 05:20 PM

#41

buell95

Stellar HDF Member

Joined: Apr 2009

Posts: 2,193

Likes: 845

Quote:

Originally Posted by djl

Convinced the tank fuel connector is not the issue. Fuel pressure tester is ordered; delivery by the end of the week.

Question: Even though the pump is priming; fuel pressure could still be the issue? So if pulling the guts from the tank, replace fuel pump; filter; top plate gasket;regulator and all the connecting lines/clamps? Assuming all OEM replacements unless someone has acceptable aftermarket replacements.

I will be looking for tips/tricks; do'/dont's for the fuel system R/R. I have done the R/R on my old FLHT to adjust the float level but did not replace any components.

I have used fuel pump factory in the past for replacement parts, Super fast shipping and good customer service.

Mar 2, 2025 | 05:23 PM

#42

djl

Thread Starter

HDF Community Team

Joined: Jun 2006

Posts: 12,784

Likes: 2,612

From: san antonio

Thanks to everyone. It only took five days to figure out I have a fuel delivery problem; that's on me.

Hope I can move faster once we know if fuel pressure is the root cause. Tool should be here by the end of the week; I should be able to post test results by the end of the week.

Got parts list together; $150 mas o menos. Thanks Mr Buell, I will check out the fuel pump factory.

Last edited by djl; Mar 2, 2025 at 05:28 PM.

Mar 2, 2025 | 07:57 PM

#43

Max Headflow

Seasoned HDF Member

Joined: Dec 2005

Posts: 19,997

Likes: 8,065

From: poway

Quote:

Originally Posted by djl

Like I said above, the Ecu doesn't sense fuel pressure. It only primes by running for a few seconds and stops.. It won't continue if the pressure is not created. It assumes the pressure is there.

Only tips I know are to not mess with the fuel system days before you plan to take a long scheduled trip and buy a fuel pressure gauge..

Mar 4, 2025 | 05:18 PM

#44

djl

Thread Starter

HDF Community Team

Joined: Jun 2006

Posts: 12,784

Likes: 2,612

From: san antonio

How will the fuel pressure gauge measure pressure if I can't start the engine? Will I have to use starter fluid to get the engine to run for 5-10 seconds?

Mar 4, 2025 | 05:31 PM

#45

Max Headflow

Seasoned HDF Member

Joined: Dec 2005

Posts: 19,997

Likes: 8,065

From: poway

All you go to do is turn on the ignition. It should jump to about 55-58 psi when the pump runs. When the pump stops it should hold at above 52 psi for some time..

Mar 5, 2025 | 10:21 AM

#46

djl

Thread Starter

HDF Community Team

Joined: Jun 2006

Posts: 12,784

Likes: 2,612

From: san antonio

Got the Fuel Tool tester, connected it to the quick disconnect and then connected the male end of the supply line but that connection leaked fuel, a stream. Disconnected and reconnected several times but leaked every time. Pretty straight forward connection; hard to ***** it up. Waiting for a call back from Fuel Tool. BTW, guage did not move after pump primed but with the leak, that probably doesn't mean anything.

Mar 5, 2025 | 10:30 AM

#47

Max Headflow

Seasoned HDF Member

Joined: Dec 2005

Posts: 19,997

Likes: 8,065

From: poway

If you have a new drain plug O ring, you can dig out the one in the connector and replace with drain plug O ring..

Mar 5, 2025 | 12:31 PM

#48

djl

Thread Starter

HDF Community Team

Joined: Jun 2006

Posts: 12,784

Likes: 2,612

From: san antonio

Quote:

Originally Posted by Max Headflow

If you have a new drain plug O ring, you can dig out the one in the connector and replace with drain plug O ring..

I was thinking the same but will wait until I speak to Fuel Tool. I wonder if I can use their tool to R/R the o-ring?

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Mar 5, 2025 | 01:25 PM

#49

Dan89FLSTC

Seasoned HDF Member

Joined: May 2008

Posts: 21,216

Likes: 12,810

From: South Carolina

Quote:

Originally Posted by Max Headflow

If you have a new drain plug O ring, you can dig out the one in the connector and replace with drain plug O ring..

I tried that on my `19 Electra Glide Standard, tried several o rings in fact, but it still leaked (they were not OEM o rings, they were 013 Viton o rings from McMaster Carr).

I found an o ring on ebay, worked perfect.
https://www.ebay.com/itm/254633953162

Quote:

Originally Posted by djl

I was thinking the same but will wait until I speak to Fuel Tool. I wonder if I can use their tool to R/R the o-ring?

Remove the tank, flip it over and you can easily see the oring, just use a 90 degree pick to remove it.

Last edited by Dan89FLSTC; Mar 5, 2025 at 01:28 PM.