Fuel pump aftermarket part numbers

[wheeler]

I talked to a not-very-informed phone answering person who told me that they (Delphi) no longer make 30R10 hose and have gone to all PTFE/FEP. I am not totally confident of her level of knowledge-ness.

I'd be inclined to buy some of the 5/16 and experiment by heating the stuff up over a 1/4 inch dowel and see what happens. It makes more sense to me that it would be 5/16 and shrunk to 1/4 rather than risk splitting the PTFE by trying to get 1/4 inch hose over a 5/16 inch barb. Heat-shrink PTFE tubing is pretty common in the electrical cabling biz.

How long is the tubing in the OEM module? I'm guessing we'd need the 14 inch long stuff?



/

Based on the hoses that I have gathered up from used fuel pump units, I have a tendency to think they "enlarged" one end to fit over the 5/16" fuel pump fitting....

[wheeler]

You can boil some water, stick one end in the water for a while, lube up the 5/16" barb on the pump with some spit, or dishwashing soap or something...then slide the hose over it with some force.....It will go on without splitting.....

[boofer]

Bigmac, is this PTFE/FEP okay for use in the tank? Maybe wheeler can measure his hose (no pun intended) to estimate the correct length.

I must admit that shrinking the hose would be somewhat odd, but if the stuff only comes in a 5/16" size then it would have to be shrunk. Although, it raises questions. Why is the regulator fitting a different size? It seems to me that 5/16" is the standard in this size range. Why would Carter "modify" a hose in such a critical part of the fuel system? That sounds like shoddy engineering. And, it does appear that they have modified a hose one way or the other; whether it is 1/4" enlarged to 5/16" or 5/16" shrunk to 1/4". The only other conceivable thing is that they had these hoses specially made with two different sized ends. But, from wheeler's pictures and from dissecting my old module (which had the non-corrugated hose), it seems undeniable that the hoses are one diameter and modified. Why are carter and MC so closed lipped about the design of this module? There is nothing cosmic about it.

I wonder if we can replace the regulator with one that has a 5/16" fitting.

I need to reply to the MC person I contacted. But, I cannot seem to get Outlook to include the email trail in a reply now. Anyone have any hints? I have unchecked the box that says "close original message on forward or reply."

[bigmac]

Bigmac, is this PTFE/FEP okay for use in the tank? Maybe wheeler can measure his hose (no pun intended) to estimate the correct length.

I must admit that shrinking the hose would be somewhat odd, but if the stuff only comes in a 5/16" size then it would have to be shrunk. Although, it raises questions. Why is the regulator fitting a different size? It seems to me that 5/16" is the standard in this size range. Why would Carter "modify" a hose in such a critical part of the fuel system? That sounds like shoddy engineering. And, it does appear that they have modified a hose one way or the other; whether it is 1/4" enlarged to 5/16" or 5/16" shrunk to 1/4". The only other conceivable thing is that they had these hoses specially made with two different sized ends. But, from wheeler's pictures and from dissecting my old module (which had the non-corrugated hose), it seems undeniable that the hoses are one diameter and modified. Why are carter and MC so closed lipped about the design of this module? There is nothing cosmic about it.

I wonder if we can replace the regulator with one that has a 5/16" fitting.

I need to reply to the MC person I contacted. But, I cannot seem to get Outlook to include the email trail in a reply now. Anyone have any hints? I have unchecked the box that says "close original message on forward or reply."

Current state-of-the-art in in-tank fuel tubing appears to be PTFE or FEP. It's a flouropolymer, the same thing as teflon or gore-tex, and the same thing that Gates coats its 30R10 fuel line with to make it impermeable. Racetronix sells it with their high-pressure fuel pump systems. No idea why it's so hard to find, but I guess that repair of in-tank systems isn't commonly done, and is probably discouraged by the mfgrs.

Anyway, I ordered a few pieces of that stuff and will play around with it, see if I can shrink it down evenly to fit over a 1/4 inch tubing so that it will seal.

Nice find! thanks for the link.

[wheeler]

I need to reply to the MC person I contacted. But, I cannot seem to get Outlook to include the email trail in a reply now. Anyone have any hints? I have unchecked the box that says "close original message on forward or reply."

You should have a "search" box at the top of outlook, or above "Arranged By:"

Click on each of your folders Deleted Items, Drafts, Inbox, Junk Email, Outbox etc and type in his name, email or subject each time and see if you cannot find the old email...

[boofer]

Sounds good Bigmac. I got my fingers crossed. Might be nice to source the clamps to. I know it is possible to reuse these clamps, but I think they are one time use clamps.

Wheeler, the emails that I have with MC contain the email trail. I open up the latest and it has everything. But, when I select "Reply" the previous emails are missing. I have a blank page. I might have to just copy and paste the previous into a reply.

Did you all notice that this post has 7,700 views? And my "Fuel Pump 101" post has over 4,700 views. Call me stupid, but I think that indicates MC has a problem. I think they know it. I think we are getting....you know.

[wheeler]

I agree about the "posts' thing. I do not think we are "whining"....we own great boats, everything else about my boat I love. I have fixed the fuel pump issue for now, and obviously have a cheaper fix for future problems with the pump that I see unavoidable.

Vinyl issues will not go away, but that is another post. The main thing is we have hopefully gotten a few more people back on the lake for $90 instead of $500+.....

What gets me is the dealer and MC is making a % on the over priced fuel pump unit.....which is faulty

[boofer]

I hear you wheeler. I really wish that MC would have the balls to admit the problem.

I am having to deal with multiple cracks in almost all of my gauges.

[wheeler]

There sure are a lot of gauge sets on ebay...may find that you can grab some a wee bit cheaper than from the dealer....

[mallees]

Hi guys, I have an 04 X2 with an MCX, and while out in it on the weekend, it was running fine, cruising at about 18 mph with a couple kids kneeboarding, and then the engine just stopped. After a bit of diagnosing I have discovered that although I can hear the fuel pump running, I am getting almost no fuel into the fuel rail. If I turn the key on, the pump tries to charge the rail for about 10 secs (as normal). If I turn the key on and off a few times there is enough pressure for the engine to start for 1 second then it stops again.
Have any of you guys experienced these symptoms, is this the fuel pump issue or is it the pressure reg on top of the "fuel cell".

I have just ordered a EP356 from the States to rebuild my fuel cell, but if there is a chance that there is something else wrong, and I need to order other parts, then I need to do it asap.
It is the middle of summer over here in Australia, so I don't want to spend my vacation without my boat on the water.

Any feedback on this would be appreciated.

[bigmac]

Pretty classic symptoms for a fuel pump failure.

Be careful with the tubing that connects to the EP356. AFAIK no one has found suitable replacement tubing yet, so you'll have to re-use it.

[mallees]

Thanks Bigmac, I'll keep that in mind.
All I can do now is hope that USPS, live up to their 1-3 days guaranteed delivery. We are about 16hours in front of the place I ordered it from, (its 12:30pm Monday over here) so it wont get out until the early hours of Tuesday (my time).

[mallees]

Update on my fuel pump issue, I have not been able to track the 2 EP356 pumps that I ordered from the USA, so I bit the bullet and bought a whole module so as I could get on the water. Installed the genuine module and it started up first kick and we put 5-10 hours on it last weekend.
Today, the EP356 pumps finally showed up and although they were both in ACDelco boxes, they are both different from each other, one has no brand marking on the pump, and the other has Walbro stamped on it. Strange!!

I am going to rebuild my old module and keep it at our cabin as a hot spare, And I got the 2nd pump for AussieMc, so he will have a spare pump.

Now, only 1 more day of work, then I have 2 weeks of heaven on the river in a Mastercraft.

Life just doesn't get any better that this.

[rudaire]

Has anyone tried to order this stuff??

http://www.texloc.com/corrugated.html

[BrightonWake]

Hi Guys,

Massive thanks to everyone on this thread, it has made some interesting reading and we have learnt alot (i hope!).. We have a problem with a 2003 X2, in that the fuel pump is making a noise but not pumping, we have tried it in a can of fuel out of the boat and connecting it to a battery, nothing!
We are trying to find a suitable replacement in the UK, the old one has the following stamped on it:
323 Made In USA
5L09BTP Carter (could be 5L09BTR?)

So
1) is an ACDelco EP356 okay?
2) where can we get one in the UK?
3) is this one below from eBay okay as it seems to cross reference with the EP356 and can be delivered to the UK?:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=370332866320#ht_2326wt_1165

the latter seems cheap and is made by Rally??

Help please.........