I'm in the process of installing my new Carter fuel pump and I've read all sorts of ways to mount it. I'm thinking of two options...

1. On the back of the storage bins (where the fuel hardlines run).

Here it would be mounted at an angle and I've heard its really loud there. I'm putting some rubber between the bracket and the car to reduce the noise though, so that should help. And what about it being at an angle, is that going to be an issue?

2. Awkwardly on the frame rail.

It would be hard to fit and the fuel lines would be awkward but I guess its quieter. Also I'm not sure about putting holes in my frame rail.


Thanks in advance for answers to my tedious questions.

 

frame rail gives a stronger mount i guess pluss its a little more further away and its best to buy some 90degre fittings for better plumbing if you mount it there theres a plastic thing with a ball bearing in it ya can remove for more space heres a pic of mine and the plastic thing plus ya can get a better vertical

but i guess the storage bins are just as good

 

That's how mine's mounted, close to that brake hose mount. Noise isn't too bad, you can hear it when the key's in the ON position (before the engine's started). I had a cheap resonator + stock muffler on so the car's a bit louder than stock. Actually, you can hear the mikuni carb better than the pump . I bent the fuel pump bracket a bit so that the pump remained level.

 

alright well its 1-1 so far.

good to hear that its not too loud. I dont mind some noise, just so its not some loud metal vibration or anything.

I think as long as I can verify that it's not bad for the pump to be mounted at an angle I'll go for the storage bins.

How did you bend the bracket? I dont have any tools to help with that at home but I know some people that could do it if neccesary.

 

Well, it's kinda like a metallic whirring/humming sound. With my car you really can't hear it when the engine's running. I used the rubber bushings provided but you might might to supplement that with more rubber. I was able to use the stock connections and retain the rollover fuel shutoff et al. As for the bracket I used a vice to hold it and a hammer.



Pretty much like this. I could get some pics if you need them, the rex isn't going anywhere for a while.

 

No its all good. I got the holes screwed in and some bolts in there. Now I'm going to get the bracket to a friend to bend it. I dont even have a vice in my garage. I'll get him to torch it and bend it accordingly.

Yeah I actually cut up a computer mouse pad and stuck it between the bracket and the sheet metal. Hopefully that will reduce some of the noise. I pulled the middle hard line and the rollover shutoff. I'll be using new 3/8" rubber hoses between the tank and the long hardline that runs the length of the car. Plus I got a new filter. I like new stuff.

I'll post some pics next weeks with everything I've done over the winter, topped off with a Sterling carb.

Thanks

 

If you have an old set of rubber bushings from the sway bar links, you can mount those between the pump base and bracket also.

 

Definitely a step in the right direction to use some type of isolation in the mounting. I believe that if you do a "hard mount" right to the chassis it also leads to a short lifespan for the pump.

I just got mine, but haven't installed it yet (hopefully in the next day or two). I picked up some galvanized steel strapping from the hardware store for about $5 for a six foot length by 1 inch wide. You can bend it with hand tools, and it is fairly flexible. It is already drilled with a series of holes down the center, so mounting should be a cinch. I'll post some pics of what I end up with. Good luck, and keep us "posted".

 

I mounted mine up over the axle. Plenty of space and it mounts vertical like it is supposed to. I think it is obnoxiously loud. But, if your car won't start, it's easy to troubleshoot. You can tell if the pump isn't working without getting out of the car. ha ha

 

Rubber standoffs work great at reducing the noise down to a quiet buzzing sound.

 

I think I'm going to mount mine under the passenger's seat. That way my wife will enjoy my car as much as I do. Good vibrations, and all that!

 

Spray the whole installation(pump included) esp the mounting area with rubber undercoating. Quieted my pump down almost completly on my other car. Also seals up the pump and helps prevent corrosion. I never had any issues of pump over temp problems and this was fueling a SBC 383 for 4 years.

Good luck!

 

I used three 1/4" lengths of fuel line as rubber spacers from the body, this along with the stock rubber mounts from the bracket double the isolation, and I mounted it under the bins, noise is minor with RB exhaust and Mikuni.

Steve

 

I mounted mine through the floor next to the tire well with just the supplied rubber isolators and the noise is rediculous.. Don't know why Carters are so noisy.

Jesse

 

i used some rubber from a old inflatiable tire cut to size of bracket to the car and added bout 3layers carters still loud tho

 

When my Carter was in the GLC, it was way too loud. When I moved it to the REPU and used some rubber isolator standoffs, mounted to the ladder frame, it's just a quiet buzzing sound now.

I think on the GLC and 1st gens, the sheet metal really lets the sound come into the car.

 

Yeah, I just got mine mounted and its not too bad. The rubber standoffs go between the pump and the mounting bracket. I added a little bit of rubber sheeting behind the mounting bracket, between the bracket and the frame rail.

I think that the more solid the mounting surface, the quieter its going to be. Mounting it on the sheet metal under the spare tire would probably give excellent base reverb.

 

I think under the passenger seat was a better idea, Kentetsu =)

 

lol. Yeah, but having the wife wanting to ride in my car more often could also have its drawbacks... She's already spending too much time in my garage because she thinks its a turn on when I'm handling my tools... I need to be able to go somewhere to get some rest!

 

I just installed a 4070 in my car, and installed it similar to blwfly's setup, except for three differences.

First, I used a couple 1/4" NPT right angle fittings, a couple 5/16" tube to 1/4" pipe adapters, and a 30" length of 5/16 tube. Thus, mostly hardline. I have a hard time trusting several feet of rubber hose flopping all over the place.

Second, the bracket was screwed directly to the framerail. No rubber pad.

Third, I bent the overhanging tab over and screwed that to the rail also, for a nice 3-dimensional attachment.

This pump is damned near silent, I don't know what you people are complaining about. (And yes I'm counting when the engine isn't running )

 

Here's a shot of what I did. Not too loud, but you can hear it buzzing away. I put a little rubber behind the bracket, but bolted directly to the fraim rail.

 

Ok, this is a weird question but I may as well ask.

Is it just me or do those little black electrical connectors that slide over the post on the pump seem a little flimsy? I don't really trust that thing to stay on, and I defenitely dont want my pump shutting off on me while I'm cruising down the freeway, or anywhere else for that matter.

I guess I'll just tape 'em on.

Anyways I got the pump mounted, and its on the sheet metal with a bent bracket so it hangs straight down. Everythings hooked up now I'm just waiting on some issues with my new carb. I'll get pics of it all when its done (hopefully early next week).

 

The electrical plugs on mine seem to be very secure and snug. If you mounted the pump to sheet metal, rather than the frame rail, you might have some noise issues. Let us know how it sounds...

 

this is sort of going back and forth between both of our threads. I only turned it on for a few seconds to test that everything was working right (I dont want to run the pump too long dry) but it wasnt all that loud, even without the storage bin in. I think the rubber I put behind the bracket helped with that. I'll give on the noise once its back on the road.

 

It may not be immediately obvious, but you have to puch those plugs on *firmly*. The end of the connector actually fits over the plastic part of the pump's stud, requires a bit of force to snap it into place the first time.