A/C Delco 60G glow plugs

[Bezzer]

Will L. Thanks for your return. The 309 fuel pump that is on the motorhome at this time is the original one that came with it new in 1996. The picture of the one in the box is brand new and got it just in case I needed it when I was traveling.
If your testing group is right about lasting 9 to 12 months before failing....looks like mine was gold plated (Ha Ha). Looks like I will be changing mine to the one shown in the picture I attached. Is there any fuel pressure involved before removing and changing this pump? If so- how do I get rid of the pressure ahead of time?
Would you have a picture of the fuel pressure gauge mounted at the ip inlet? I believe it's where I put the clear hose looking for bubbles?
My wife wants to know what you mean by the "signature line" and for what info to put there? She's been trying to put a picture of the motorhome where the "big B" is and it won't change anything on the forum.

 

[jrsavoie]

Will L. Thanks for your return. The 309 fuel pump that is on the motorhome at this time is the original one that came with it new in 1996. The picture of the one in the box is brand new and got it just in case I needed it when I was traveling.
If your testing group is right about lasting 9 to 12 months before failing....looks like mine was gold plated (Ha Ha). Looks like I will be changing mine to the one shown in the picture I attached. Is there any fuel pressure involved before removing and changing this pump? If so- how do I get rid of the pressure ahead of time?
Would you have a picture of the fuel pressure gauge mounted at the ip inlet? I believe it's where I put the clear hose looking for bubbles?
My wife wants to know what you mean by the "signature line" and for what info to put there? She's been trying to put a picture of the motorhome where the "big B" is and it won't change anything on the forum.

I would install a fuel pressure gauge before changing the lift pump.

If it's working use it until it isn't.

 

[Will L.]

Will L. Thanks for your return. The 309 fuel pump that is on the motorhome at this time is the original one that came with it new in 1996. The picture of the one in the box is brand new and got it just in case I needed it when I was traveling.
If your testing group is right about lasting 9 to 12 months before failing....looks like mine was gold plated (Ha Ha). Looks like I will be changing mine to the one shown in the picture I attached. Is there any fuel pressure involved before removing and changing this pump? If so- how do I get rid of the pressure ahead of time?
Would you have a picture of the fuel pressure gauge mounted at the ip inlet? I believe it's where I put the clear hose looking for bubbles?
My wife wants to know what you mean by the "signature line" and for what info to put there? She's been trying to put a picture of the motorhome where the "big B" is and it won't change anything on the forum.

“Working” is a theoretical term for lift pumps. I & others have seen many of them make the sound like they are working and the engine will run but the ip is sucking fuel through the bad rubber seals that makes the pump actually pump.
If you didn’t have a fuel pressure gauge on it- I doubt it was pumping anything by year 3. By end of year 2 it was probably pumping 2.5 ish psi @ idle and going i to vacuum at hard acceleration. This is what absolute destroys the ip, which I believe you said was just replaced. Did you get the expected 175,000 miles out of it?

 

[Will L.]

For the signature line, post #5 by Doug is a good example of how to do a signature line. If you look, every post he has will have that identical section. The signature line automatically posts every time you reply.

Mine starts with:
Will
Ends with the link to a thermostat option.

sorry, I can’t remember how to edit it. Someone else here that remembers will hopefully tell you soon

 

[MrMarty51]

And, if You are posting, or reading, from Your phone, the phone needs to be held horizontally in order to see the signature that the person has posted.
At least thats the way my iphoney works.

 

[dbrannon79]

The clear hose is your return line which is not under any pressure. you want to connect the pressure gauge to where the hose coming from the fuel filter going into the IP. should be a fitting sticking straight up on the drivers side right next to the cylinder shape fuel cut off solenoid. on pickup engines that hose is a pre-formed hose that loops back down under the intake and runs back to the fuel filter housing that sits behind the intake. we would need a pic of the top of the engine on your motor home to see how it's setup so we can tell you right.

on your signature, if your using your phone just tap your "big B" at the top next to the forum logo and mail icon and you'll see the option to edit your photo and further down below see where it says signature. it's practically the same when on a computer too. Here's a screenshot from my phone how it looks. note the edit word under the photo and further down where it says signature. tap on that to change things.

 

[Bezzer]

I'm sending four pictures of the top of my engine. Hope they help to find a place where I can tap a hose for the fuel pressure gauge?
I can see the two hoses coming under the manifold to the fuel filter but I will not be able to get to them without taking off the manifold (which I don't want to do). Hopefully there is another easier spot I can tap into?

I'm going to change that 309 fuel lift pump that I sent the picture on Tuesday. It's the same one that is on the motorhome right now that came with the motorhome new.
Do I need to relieve the fuel pressure before I remove it so I don't get fuel all over my face etc...as where it's at means I have to look up to take it off?

 

[dbrannon79]

This connection is where you would tie in a fuel pressure gauge.


you can also connect a hose and gauge to the fuel drain tee if that is still on the engine. it's where you drain the fuel filter and water at.

using the connection at the pump is ideal so you get the reading right at the pump. the drain tee is before the filter iirc.

 

[ak diesel driver]

If the LP is on the frame rail pressure isn't going to be the issue. The fuel tank gravity feeds to the LP.........

 

[Will L.]

Modmafia.com sells a fuel pressure tap for the DS4. It’s about $30 or so.
Some of the guys on here found a fitting on amazon or something that works for $20ish.

You want a metal fitting where no rubber hose is used after the T. Install the sending unit in that. Long story as to why - but worth doing right.

 

[WarWagon]

Long story as to why

Short version. Hose flapper restricting fuel flow at the IP fitting.

 

[jrsavoie]

Modmafia.com sells a fuel pressure tap for the DS4. It’s about $30 or so.
Some of the guys on here found a fitting on amazon or something that works for $20ish.

You want a metal fitting where no rubber hose is used after the T. Install the sending unit in that. Long story as to why - but worth doing right.

I would also recommend a snubber