Moving Fuel Pump Up Front, Best way to mount? Options

[davidj]

This is a typical 914 mounting of a fuel pump at Patrick Motorsports.

(IMG:http://www.914world.com/bbs2/uploads_offsite/www.patrickmotorsports.com-9771-1318404647.1.jpg)

[gothspeed]

This is a typical 914 mounting of a fuel pump at Patrick Motorsports.

Thats looks pretty good!^^ I wonder if I can make an isolated bracket to mount onto my stock steel round tube and get a fuel filter in there too.

[7TPorsh]

Went for the Carter. $43 delivered in 2 days. It's smaller than I thought.

I crawled under the car and saw that there really isn't any room for the pump AND and the filter next to the rack without blocking the hole under the tank.

I may end up mounting it where Kev did it.

To add to things I see that the outlets on the tank are different sizes and the larger one is the one blocked off! The smaller one is the one used and there isn't even a hose clamp on it. Do I need the larger one as feed line? Too much gas for my carbs? (IMG:style_emoticons/default/confused24.gif)

I can't get my fingers in there but I don't feel or see the entry into the front end of the tunnel. I am also working under car ramps with very limited space. I don't use jack stands when I crawl under the car any more; too scared.

How far in there is it? It looks as if the pipe will need a 90 degree bend in it. How does that feed line go through the tunnel and out the front. It's so tight. i don't know how I can pull out the hose from the front.

My plan was to pull out the hose will pulling in the pipe; or a wire to then pull the pipe through. As I understand the pipe goes in back to front...again engine is in the car.

Running the line outside the car is starting to look better. (IMG:style_emoticons/default/mad.gif)

[stugray]

"Running the line outside the car is starting to look better."

With a carb system, I can remove the engine in less than 1 hour, by myself, and nothing but 2 jackstands and a floorjack ;-)
( and a stick and a rock, but sometimes we have to share the rock (IMG:style_emoticons/default/lol-2.gif) )

FI takes longer just because of all the connections.

If you are afraid to remove the engine, you haven't been in this hobby long enough ;-)

Yes - to put new lines in the tunnel, the engine must be out if you want rigid lines.

Stu

[7TPorsh]

Yes I am scared to drop the engine too. Not dropping...getting it back in.

I wouldn't mind dropping it to do a bunch a stuff for the winter.

[tod914]

Still trying to locate my camera for you. Been misplaced for a few weeks :S. Beautiful car btw David!

[patssle]

Wait, the engine has to come out to install stainless steel lines into the tunnel? That's not what I thought I read before.

And perfect timing for this, because I brought my 914 out of storage today for the Texas driving season (2 weeks approx.), and the Carter fuel pump is dead. Luckily I have a backup I have been using on my 911 carb conversion.

My intention was to install a stainless line that I bought a year ago from Chris, but I don't have the time to do an engine drop.

[clapeza]

According to the Tangerine Racing website:
"Easy Installation with the engine in the car. (Instructions included)"

In the vendor's section where Chris talks about this product, there are many posts about how quick and easy it is to install these with the engine in the car.

Since you bought the line from Chris, I'm sure he'd share the secret with you. If you cobbled the pieces together so save a few bucks, then "the solution is left as an academic exercise". (IMG:style_emoticons/default/headbang.gif)

I don't have his kit yet, but it's on my shopping list.

Wait, the engine has to come out to install stainless steel lines into the tunnel? That's not what I thought I read before.

And perfect timing for this, because I brought my 914 out of storage today for the Texas driving season (2 weeks approx.), and the Carter fuel pump is dead. Luckily I have a backup I have been using on my 911 carb conversion.

My intention was to install a stainless line that I bought a year ago from Chris, but I don't have the time to do an engine drop.

[patssle]

Ok, that sounds more like what I remember reading (it was a year ago).

That endeavour awaits...

[7TPorsh]

but what about the front? Does the tank have to come out? Hood off?

I can;t see where the hose enters the tunnel in front.

[kconway]

but what about the front? Does the tank have to come out? Hood off?

I can;t see where the hose enters the tunnel in front.

There is an access plate in the car under the dash just to the right of the pedal cluster that you have to open up. Also underneath where you were looking to locate the pump there is that large circular opening. I did mine with tank out but think you should be able to do it with it in. Lube up the SS lines at the access panel to shove them through the rubber grommet.

[tod914]

Here's the shots as promised. Accommodating a later style pump would of been much easier, but had this one laying around. Used one of Racer Chris' step lines. The rest I bent myself using brake line. Should give you an idea where to mount the pump anyway.

[kconway]

Wow, I would have never thought it possible even after looking it over myself. So you can get the rack pan on over all that too?

By the way, how did you get your car flipped upside down in your second photo without damaging it? (IMG:style_emoticons/default/biggrin.gif)

Kev

[SLITS]

If your fuel supply line was hooked to the smaller of the tubes on your tank, you are tapped into the return line connection. It is a small hole in the tube with no filter sock over it and can starve a pump for fuel.

The larger line is supply and has the filter sock over it inside the tank to keep crap outta the fuel lines.

[tod914]

The rack pan fits fine. The fuel pump relocation was done by the Porsche Dealer back in 1975 for the previous owner. They didn't use any step lines. If you can source a late style feed pipe and compression nut, you can run a 7mm ID or 5/16th line, right from the tank to the filter. I still might do that. I tested it out, and it works fine, and also takes the screen no problem.
The only other step line you'll need, is from the pump through the tunnel. I used one of the OEM step hoses for that. Ideally, replacing the 9mm tunnel line with one of Racer Chris' SS 5/16ths would resolve that issue as well. I wanted to minimize the amount of fuel line, so hence the prefabbed brake line.
Let us know how it turns out (IMG:style_emoticons/default/smile.gif)

[7TPorsh]

If your fuel supply line was hooked to the smaller of the tubes on your tank, you are tapped into the return line connection. It is a small hole in the tube with no filter sock over it and can starve a pump for fuel.

The larger line is supply and has the filter sock over it inside the tank to keep crap outta the fuel lines.

Great. I didn't know there's no sock on that outlet. Thought maybe they shared it.

I didn't even look, but does anyone know the size of the connections on the Carter fuel pump?

Same size as the larger tank outlet? 3/8"? What size hose / pipe do I need?

I think I have 3/8" running at the engine side to the carbs. I read things about step-up/step-down connections.

[7TPorsh]

I scored a 5/16" fuel line from Robert (Rotary'14) at G&R. Thanks man, you gave me the confidence to try and pull my tank.

So, got home, unscrewed the strap, a tug here and there and out it came. Did it myself.

I'm amazed at how light it it.

[7TPorsh]

I did notice these plastic brake lines...is this stock?

[7TPorsh]

[7TPorsh]