Can Someone Confirm This Is The Right Fuel Pump?

I'm pretty sure this is the correct pump for my dauntless (OMIX Part #17709.17) but some of the online sites are giving me the "does not fit" message. I don't believe them so I bought it anyway but I just wanted to confirm with you all. I know I should have the 3 line system as shown in the service manual, but online sites keep directing me to the 2 line pumps.

This is what I ordered

Advance Auto Parts - Down for Maintenance

 

I would be surprised if a fuel pump for a factory-installed 1966 225 V6 has a fuel return line.

Popular sentiment suggests you avoid Omix-Ada parts, if possible. I would get the Carter shown here.
1966 JEEP CJ5 3.7L 225cid V6 Fuel Pump | RockAuto

 

Hmm okay, the one I used to have on there had a return line, maybe the PO had it wrong? The FSM shows a 3 line pump for the V6:

 

"I would be surprised..." but I won't say for certain. 1966 is quite early for fuel return, in my experience.

That TSM covers more years than just 1966. Maybe someone here with access to a factory parts book can say for sure.

If you want one with a return line, look at the listing for a newer year.
1970 JEEP CJ5 3.7L 225cid V6 Fuel Pump | RockAuto

There's nothing wrong with having a return line, if it's plumbed correctly. I would expect the factory would use a steel line for return, not rubber. You should be able to tell if the pump uses factory plumbing by the lines. Long rubber fuel lines are not safe. If you have a rubber return line, I would suspect that a PO added it.

I would not buy an Omix part. That's just me.

 

Thanks, I'll keep shopping in that case. Really not sure which way to go. The return line is steel, I disconnected it when I switched to an electric pump but now I want to do the electric in line with a mechanical. I've never had a problem with vapor lock or anything so maybe it would be fine to get a higher quality 2-line fuel pump and just keep the return line disconnected.

 

I don't see the point of having both pumps.

 

I like having the electric pump as a primer pump hooked to a switch. When my jeep sits for a while I can lose prime. I just want to hook it to a switch and use it to prime before starting then turn it off.

 

Yes, but if you have the electric pump, why do you need the mechanical pump?

 

Just paranoia. I'm just afraid it'll go out on me one day. It's in a hard place to wash and it basically stays caked in mud all year. I'd rather rely on a mechanical pump and have the electric as a convenience.

 

My 1971 CJ5, with the rear tank, has a return line. The fuel pump has three ports. I do not know if the fuel pump changed before the rear tanks happened.
OP- Do you have the underseat tank? Has a rear tank been installed?

 

I have an under seat tank

 

I've been running a return line style mechanical pump for about 5 years now with the return line plugged with no issues, for what it's worth.

 

Note the main fittings are completely different between the 2 port and 3 port pumps. The 2 port pumps have horizontal inlet and outlet fittings with a 1/8" female pipe threads. The 3 port pumps have a hose-barb vertical inlet and a horizontal flare fitting output (3/8" I think).

I found this out because my '68 (titled as a '69) does not have a tank return, but it has a newer odd-fire 231 and a 3-port pump with the return port capped. I ordered a non-return pump for it (in an attempt to simplify) and found out I would need to redo the incoming and outgoing lines to make it work. I ended up getting another 3-port pump and capping the line again. In the interest of ease, you should match whatever pump you already have.

I would stay away from Omix stuff. I got a quality Delphi pump from Rock Auto, but it looks like they're out of stock now: More Information for DELPHI MF0151

They do have a GMB that's probably decent quality: More Information for GMB 5308430

 

I've thought about it, but I would have to swap the tank. Mine has 6 vertical screws holding the sender in like this one: Sending Unit Fuel Tank With Brass Float 6 Screw Type CJ3B, C

Given that it's a late '68, it *should* have a return style system, but it doesn't and everything looks original.

 

A couple pages from my parts book, for reference.

 

My '66 w/Dauntless has only 2 fittings on the fuel pump; in from tank, out to carb. I would never consider an Omix fuel pump due to questionable quality. A good mechanical fuel pump will prime the carb with about 2-3 revolutions of the engine, no electric pump necessary. Keep it simple.
-Donny

 

Yeah I'm sure I would have been just fine with a 2 hose pump especially since the electric one I've been using hasn't had any issues. Oh well. I ordered a better quality pump from rock auto and will return the omix, thanks for the warnings. If it primes well I may remove the electric one day, but for now a simple switch added to the wire will have me a fancy little primer.

 

Maybe. AFAIK there are electric pumps that can be used in this way, but not all.