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Old 05-20-2012, 05:43 PM
schalker schalker is offline
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Default V3 pressure gauge is not reading and purge is dripping oil

7.3 liter. V3 still functions fine once heated up, but pressure gauge does not read and purge slow drip. Ran fine for a number of years.

Replaced the fuel pressure regulator and this didn't solve the problem of no pressure reading and purge slowly dripping oil.

Any Suggestions to fix?

ThanksSteve
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Old 05-20-2012, 05:46 PM
Clay Clay is offline
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Originally Posted by schalker View Post
7.3 liter. V3 still functions fine once heated up, but pressure gauge does not read and purge slow drip. Ran fine for a number of years.

Replaced the fuel pressure regulator and this didn't solve the problem of no pressure reading and purge slowly dripping oil.

Any Suggestions to fix?

ThanksSteve
Why did you relace the fuel pressure regulator? Do you mean the pressue sender?
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Old 05-20-2012, 09:00 PM
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Hawaiian Diesel Hawaiian Diesel is offline
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Originally Posted by Clay View Post
Why did you relace the fuel pressure regulator? Do you mean the pressue sender?
What Clay said + Is your truck running on SVO at all?

What is your fuel pressure reading when you first start the (cold) truck? If it's not working it's your fuel pressure gauge or sender. If you know how to use a OHM meter. With an ohmmeter check the resistance between the round sender post and ground

low ohm number= high fuel/oil pressure. Roughly around 10 ohm

High ohm number = no fuel/oil pressure 70 ohm +

This all depends on your sender specs.

Good luck

BTW- You posted this in the wrong section.
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Last edited by Hawaiian Diesel; 05-20-2012 at 09:12 PM.
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Old 05-22-2012, 04:47 AM
schalker schalker is offline
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I replaced the fuel pressure regulator because I had one.

Truck is running on WVO.

I will barrow an OHM reader and see if I can check it.

Why would the purge be dripping oil?

Where should I post this message?

ThanksSteve
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Old 05-22-2012, 01:33 PM
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Elvia Elvia is offline
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I would check to see if the purge valve is stuck mostly in the closed position.
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Old 05-22-2012, 03:40 PM
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skyskijason skyskijason is offline
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Hi Steve. Sounds like you have more than one issue here, but none are a big problem.

I'm assuming you have a fuel pressure gauge added on to your V3. Depending on what kind of gauge you are using, its possible the sending unit is not working any more. The first thing to check would be the GROUNDS on the V3 and the FP sender - then pull the sender and check the inside for debris/poly.

The purge solenoid may be loose or have a bad seal. Remove it and inspect. This is an ORB (o-ring boss) fitting and uses an o-ring to seal - DO NOT use teflon tape or pipe dope when re-installing.

As far as the wrong section, no worries - but the General Discussion section would have been better for getting attention. This section is for write-ups like how to fix your problem...

Keep us posted and post some pics of your leak if you can!
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Old 05-29-2012, 09:03 PM
schalker schalker is offline
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So I have removed the pressure release "bell" not sure this can be cleaned. I have screwed the bolt in and out and not sure where to set this at this time. I have a photo to post, but don't think I have a URL to post it. Is there another way to post a photo? The pressure release bell is what is dripping oil. Could this be causing the pressure gauge to not work? Here is an attend to post photo /Users/stevenschalk/Desktop/IMG_0122.JPG
Does not look like there is any seal that is between the "bell House" and the brass fitting. Leaking from the top where wire attaches is my guess.

thanks,Steve
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