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MG TD TF 1500 - More on Facet fuel pump location

I am converting my '53 TD to negative ground, partly to accommodate an alternator replacement for my recently demised generator. Although my positive- ground existing fuel pump works well, I will replace it with a Facet pump. Moss Motors strongly recommends placement of the Facet pump on the frame near the tank and discourages placing the pump anywhere inside the engine compartment (rationale being to avoid heat which may cause vapor lock.) However, any location on the frame near the fuel tank is going to be in close proximity to the tail pipe. My inclination is to attach the Facet pump on the firewall (bulkhead?) about where the right hand horn used to be. Such location would be less than 12 inches above the level of the bottom of the fuel tank (recommended by Facet) depending on whether I bypass the original pump or pull fuel through it. Since the original pump is mounted on the front of the toolbox, pulling fuel to that height and then back down to the Facet pump may not fit with the definition of limiting the location to within 12 inches above the level of the bottom of the fuel tank. I've owned this car for less than two months, so any advice from this group would be appreciated.

Regards,

Bobby Loughridge
B. F. Loughridge

I added a Facet to a TD threading it right to an elbow on the gas tank; the tank fitting has a strainer up in the tank.

HOWEVER, WE FOUND THE NOISE TOTALLY INTOLERABLE!

I wound up attaching an old SU pump to the back of the tub below the tank and plumbed it off a new sediment bowl threaded up into the other tank port, 3/8" NPT as I recall. The sediment bowl will separate dirt & water, and the needle valve offers a reserve so you unscrew it for the last couple of inches of gas. A magnet was added to the bowl to trap rust.

Under the dash, I installed 2 switches so wifey can leave it on SU or switch to Facet for instant reserve if she runs the SU dry. If she get it out on Michigan International Speedway in Oct, she can run both to feed the Marshall blower, but I think either one will do the job just fine.
Jim Northrup

Bobby - The original location of the SU fuel pump was just above the right horn, on the firewall. The pump located on the tool box is something that a previous owner would have done for whatever reason that they had. As for the pump being located on the frame back near the tank being close to the exhaust, this shouldn't be a problem. This is the location of the fuel pump is in just that location and there is no problem from the exhaust. By the time the exhaust gets that far back, the temperature has dropped considerably and the air flow when the car is moving is going to carry any heat away from the pump.

Jim - "I added a Facet to a TD threading it right to an elbow on the gas tank; the tank fitting has a strainer up in the tank.
HOWEVER, WE FOUND THE NOISE TOTALLY INTOLERABLE!"

If you had the Facet pump connected to the tank with a hard connection, I can well imagine the racket. If the Facet pump is attached via a flexible line and mounted on sound mounts. done that way (I have it mounted like that in our MGB), the Facet is barely audible, even with the engine not running. Cheers - Dave
David DuBois

Dave - Thanks for the info. I see from one of the pictures on Dave Braun's web site how the SU pump is mounted and supposed to look. My existing fuel pump (that is mounted vertically on the front of the tool box) doesn't have any identifying marks other than "top," "in" and "out." I probably could have isolated the existing pump and converted it to negative ground, but I thought that a new Facet pump may be a cleaner installation and more worthwhile in the long run. Based on your, and Jim's comments, I will certainly use a rubber fuel line between the fuel tank connection (starting several inches away from the tank) to the filter and pump.

Regards,

Bobby Loughridge
B. F. Loughridge

I don't like the Facet pump. Way too noisy.

I installed a Mr. Gasket pump on my TD fitted with a MGB engine and it works just fine. I attached it to the frame just below the passenger seat. All of the modern electric fuel pumps, including Facet, put out more pressure that the old SU and more that recommended by MG. If you have a problem with fuel leaking at the carb overflow you can install a MR. gasket fuel pressure regulator.

See the below link for a description of the MR. Gasket fuel pump. This is just one of many sources for this pump.

http://www.vichubbard.com/auto-part-detail/mr-gasket-12s-electric-fuel-pump.html
Frank Grimaldi

I recommend a Airtex fuel pump, part no. E-8016S. Low pressure. Also sold under the Masters, Federal-Mogul, and other names.
Cylindrical pump, comes with a mounting bracket. Has two wires, so positive or negative ground cars will have no problem. Sold under the Masters name at Autozone. Under $50.00. QUIET!

Dallas
Dallas C Congleton

I don't know about the other after market pumps, but Facet has pumps with various pressure ratings, several which are correct for SU carburetors so there should be no reason to have to resort to a pressure regulator. Judging from the many postings I have read on several MG forums, the pressure regulators tend to cause more problems than they resolve, with some notable exceptions.

Interesting Frank, the Mr. Gasket pump that you linked is actually a Facet Posi-Flow pump http://tiny.cc/8qt8u The 60104 will work fine on SU carbs without need for a pressure regulator. Cheers - Dave
David DuBois

Bobby:

I mounted my Facet pump directly on the chassis frame ahead of the right rear wheel (where it goes up over the rear axle). I secured it to the frame with stainless steel hoseclamps.

It pumps through the original (working) SU pump on the bulkhead. It has work perfectly (for five years) and the noise is minimal.

If you send me your email address I will send you a photo.

Mark Sherman
mrkshrmn at hotmail.com
Mark A. Sherman

I did run a 3/8" stainless tubing right from the Facet up ahead of the firewall at first. Rattle the filling out of your teeth!

The cheapo electric pump on my forklift is quiet as a churchmouse. Should've put the Facet on my forklift and grabbed the el cheapo for the MG. As it is, I & wifey will listen to the clickety-clack of the SU telling her when to hit the starter.

The Facet will go along for the ride should old SU fail or run dry.
Jim Northrup

This thread was discussed between 07/08/2010 and 09/08/2010

MG TD TF 1500 index

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