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| Lift pump... Suggestions? http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=60482 |
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| Author: | DynoPax [ Mon May 02, 2011 9:22 am ] |
| Post subject: | Lift pump... Suggestions? |
Gentlemen, I am considering putting up a lift pump on the Libby but wanted some opinions on the various brands readily available: - Airtex - Kennedy - Mr Gasket - Facet Though I suspect Kennedy to be of the high-end quality flavor, it also bears the highest sticker price (and it's not shipped yet!). The Facet brand seems a good compromise in price vs quality, plus it is readily available on canadian market... I'm all eyes on your replies 
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| Author: | bugnout [ Mon May 02, 2011 11:21 am ] |
| Post subject: | Re: Lift pump... Suggestions? |
Sorry, no opinion, I opted for the in-tank lift pump from a Dodge truck. Was not difficult to do. took me about 6 hours. |
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| Author: | BlackLibertyCRD [ Mon May 02, 2011 11:39 am ] |
| Post subject: | Re: Lift pump... Suggestions? |
I been using the Facet for about 4 years now and it never missed a beat. Follow this link: viewtopic.php?t=24527 
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| Author: | Squeeto [ Mon May 02, 2011 11:45 am ] |
| Post subject: | Re: Lift pump... Suggestions? |
X2 on the in-tank. Way, way back, it was said that the original (can't get) in-tank pumps for the Dodge trucks were ~8 psi. Good for us, not-so good for them and the pressure was increased. I suppose that enough time has passed with enough people using the newer version (15+ psi?) to say that it can be used without damage to the expensive CP3? I have asked this before, just haven't had an answer yet. Still, I think the in-tank solution is the best. Positive pressure throughout the entire fuel line. When I bought mine, it was old (first version) stock from a Dodge dealer up-island. |
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| Author: | papaindigo [ Mon May 02, 2011 1:25 pm ] |
| Post subject: | Re: Lift pump... Suggestions? |
Ideally an intank "pusher" pump of the proper psi would be the best bet. That said there is nothing inherently wrong with a "puller" pump located at the engine end of the system. When I first started working on cars virtually all of them had the pump located on the engine block driven by a cam and those systems worked just fine so long as the fuel line from the tank to the pump had no leaks. The problem, if you will, with the CRD system is 1) diesel is a bit more viscous than gasoline hence requires a bit more omph to pump and 2) the quick disconnect fitting on our fuel lines, particularly those above the fuel tank, are prone to bleeding air into the system due to the slight vacuum or low pressure in the line from a fuel pump at the engine end of the system (e.g. they seal ok only when fuel is under pressure). IMHO if you don't have air in the fuel filter head problems don't worry about it. If you do then a lift pump is a simpler solution than an in tank pump but you may have to cut out the quick disconnect fittings and replace with solid fuel hose. The Kennedy is an excellent pump and there is plenty of info on the forum as to how to install back near the fuel tank. On the other hand several folks have reported good results from a cheap simple Facet install in the engine compartment. BlackLibertyCRD has a good writeup on the latter at viewtopic.php?t=24527 along with a nifty idea for how to easily tell if there is air in the lines. I have purchased Facets for my CRDs and stoutdog's but not yet installed. Note there is chat on the web about Facets being bad which was apparently true some years ago (high failure rate) but is no longer the case. They are pretty common on marine diesels. |
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| Author: | warp2diesel [ Mon May 02, 2011 3:47 pm ] |
| Post subject: | Re: Lift pump... Suggestions? |
I used a Carter with the same capacity as the 6.5L GMC pre Duramax Turbo Diesel. As long as you don't have any air leaks going into the pump, it works fine. There are a lot of happy CRD owners with the Dodge in tank pump and the same with the Kennedy pump. With the Dodge Cummins, some of them are going to the external pumps to gain capacity, but they replace the fuel inlet pipe with a larger stainless steel line and seal it up well so it has ZERO leaks. You might get lucky and grab the take out. To add to the evidence that ZERO air in the fuel system going into the CP3 is best. Newer trucks with DPFs have fewer regen cycles when the fuel aeration is greatly reduced or eliminated. Some are even using aeration reducing additives. Check out the Amzoil Youtube sites if you want to watch the videos, very good. So what ever you use, make sure you have NO SUCTION SIDE VACUUM LEAKS. |
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