I just roughed out the placement of the 75 pump in the 73 stock location. Not the best fit. One problem the fuel filter can't be secured in the 73 filter holder. I also think the plastic lines might have to be trimmed. You guys have any suggestions? I'd rather not move it up front. Capt'n is this the way you have done it? Thanks for the help.

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That's not the best place for the fuel pump, it's a heat trap. That is why one of the solutions was to mount it on the lower firewall, but they can still vapor lock in that location, which is why the best solution is to move it up front pushing the fuel (which is easier for the pump) than pulling it.

Thinking maybe the firewall might accomodate it alittle better.

I just put it all in so it looks professional. Whatever you have to do to make it all fit is fine, as long as you don't have any kinks in the hoses. BTW, that pump looks a little different than the ones I use. It has the wrong electrical connectors. Might wanna check the part number.

In all the years I've worked on 914s, all 37 of 'em in So Cal where the traffic and temperatures should cause the fabled heat related fuel system problems, I have yet to actually see such a thing, or even talk to anyone who has actually (and verifiably) suffered them.

The Cap'n

I don't agree with the whole vapor lock thing on a FI car, and it's not really pulling much cause the tank will gravity feed all the fuel out of it. Any way, I made a mount and put it on the lower fire wall. I use a metal filter with 5/16 in/out. The filter clamp is actually a conduit clamp, and it fits perfect.

The pump is the one from Busdepot that was on sale. http://www.busdepot.com/details.jsp?partnumber=GFP301
The part number on the box = 0 580 463 016 It has connectors with it. I think maybe they just changed the connector style.

Under, how did you attach the bracket to the firewall? Sheet metal screws ?

Think I found a solution without turning it into a major project. By using a set of 1 1/2" brackets attached to the mounts, then another set of mounts attached to the bracket then the pump holder, I can extend it out and pivot it. I'll post shots once I get better brackets. That should give me the clearance I need in the stock location.

Tod,

I am using the same pump with the same solution. post the pics when you get a chance. Just put mine on the stands last night and am taking the old pump out tonight.

Rob

Rob, http://www.mcmaster.com/#catalog/115/1362/=5bv148 has the vibration mounts. I was thinking 2 pair of M6 double male ends with "A" having a 1" length and a pair of Z brackets. Probally will order a combo of sizes with male & female to see what works best. Was under the impression this was an easy stock fit. Not the case without getting creative. It seems there are 2 fire walls, so drilling though both of those and removing the back pad is more work than I want to do. One of PO's used sheet metal screws on the fire wall to hold the pump bracket. Pump was ready to fall off. So, the z-bracket solution should be fine.
I'm heading over to Lowes and Homedepot to see what they have. Still have the dangeling fuel filter to resolve. I'd rather not cut the oem plastic lines, but I think I might have to.
Open to suggestions if you come up with something better. I'll take shots once it's all done with a hardware list. Be a few weeks before I'm done with it.

I actually tack welded through the holes. Easier to cut and grind then fill was my thought.

I've had two injected 914 that had vapor lock problems. My 1st '74 1.8 and a '73 2.0. They both would give problems whenever the ambient temps were over 95, and the fuel tank got below 1/4. Moving the pump on the '73 helped, and the '74 got converted to carbs with a Bendix heavy duty fuel pump in the stock locaton (yes in the heat trap) and never gave any trouble. Last I heard it was still running on that 25 year old fuel pump!

One question on the fuel line; pump to filter. Is it 11mm or 12mm fuel line that is used? Was just at the local VW shop and looked on their parts schematic and it showed 11mm line for the Vanagon for the pump to filter. 914 uses larger ? Line is available from VW, but only sold in 5m lengths for $45.00. Anyone want to go in on some? lol.

Tod,

Ok...now I gotta laugh. Thought I'd post this for the benefit of others. Took the old pump off the old mounts tonight and noticed the leads were kinda of cracked. Hadn't noticed these before because I was so focused on other "issues" like the ECU harness and all the other "no start" stuff. Jiggled the wire a little bit and plugged back into the pump... and thought see if it works now?
It works now.

Still gonna place the pump on the firewall anyway, and replace the wiring where it's cracked. Also going to make sure it output is okay before I stick it back in. Should have jiggled the connector harnes when I tested it.

I'll try and take some pictures of the cracks in the 38 year old heat cracked wiring.

Rob

Drove my car all last summer, and it gets well over 100Deg here in the summer, never had any hint of a vapor lock. I'm not saying it can't happen, and maybe my Megasquirt changes things a bit, since I have it set to run the fuel pump for 6 seconds before start instead of the 1 1/2.

Ok,

Finished today.....long day. Replaced the old pump with a later model fuel pump and placed it in the firewall area. Did lots of other maintainance stuff as well. Biggest one was the gromment ......or lack of one, where the accelerater cable passes through the tin had worn out and cut into the sheath. So what the hell...replaced that too. My biggest fear was after taking most of the top end apart, old lines and what not, and it would not start.

Hit the key after priming the pump and .....started right up and idled perfect.



Now gonna put the new rims on!

I decided not to go too far and save some energy for the 2.0 at the end of this year.

How did you end up mounting it to the wall? Have a shot of the work? Love to see how you did it.

Hey Tod,

Yea I will. Basically I used a 1/8 galvinized plate which I mounted with Tek scews and permanant loctitie. Then I used a galv. clamp that Underthewire used for the fuel filter. I carefuly routed and replaced all the fuel lines. The supply from the tank I routed right behind the wirng harness where it comes out of the firewall.

I know this is worthless without pics..... but it started raining here so freakin hard that I had to batten down the hatches at the house. So I ran out of time today. They are saying we are gonna get 10 inches of rain this week.

I'll take some this coming week if I don't float away.

Good luck out there, you guys are getting dumped on pretty good. Stay dry if you can.