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> Damnit! Any help with a CIS fuel pump?, Never gonna get it going in time
Series9
post Apr 20 2006, 07:52 PM
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That's true, but the late pump will work by itself for a 914 application.

All the pumps 'push' really well, but none 'suck' (go ahead, I know) very well, so mount it close to the tank.

Mine is in the front with all the oil equipment.
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rick 918-S
post Apr 20 2006, 08:32 PM
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QUOTE(Series9 @ Apr 20 2006, 05:52 PM) *

That's true, but the late pump will work by itself for a 914 application.

All the pumps 'push' really well, but none 'suck' (go ahead, I know) very well, so mount it close to the tank.

Mine is in the front with all the oil equipment.



I've been out of town, I agree with all these guys. Any CIS pump should work fine. I mounted mine under the tank. When it's running I can hear the fuel swoosh in the tank through the return line.
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Dr Evil
post Apr 20 2006, 09:31 PM
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Ok, a few questions/thoughts.

I have my pump in the stock 73 location due to not wanting to push that much pressure through my stainless center tunnel lines that have no flared or barbed fittings. If they do not suck too well, then theoretically I am not gonna have luck with this set up anyway.

Can I move my pump up front with my curent tubing setup? If so, I would be happy.

But, if I can move my pump up front by the tank, whre do I put the accumulator?

There is some evedence to suggest that the 74 volvo is D-jet so I will pass on that pump.

As for the two pump one pump deal, I was just going by what the parts pimps were listing them as. They were saying that one is a "volume" pump and the other a "pressure" pump. I have looked at a lot of sites, though and have no idea where I saw what. I am glad that you guys think I can use a 77 with no prob. Much easier.

ejm,
I have all of the goodies as they were on the pump. If you see the pump pic I posted, that side fitting is a banjo.

You guys have been really helpful so far and I really appreciate it.

Gonna have to do some tranny rebuilds to pay for the fuel pump...I will be getting some cores soon.
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Joe Bob
post Apr 20 2006, 09:34 PM
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A guy in the SD PCA mag is advertsing a pump from a 75 911....$250.00.
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Series9
post Apr 20 2006, 09:40 PM
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Because the 914 tank is higher than a 911 tank, it should provide gravity flow on its own. Before you move the pump up front and risk putting 75psi on un-barbed lines, I would try it in the stock location and see how it works. It may be fine.

If you do move it up front, you don't need to change the location of your accumulator.
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Dr Evil
post Apr 20 2006, 10:00 PM
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Thanks Mikey,
I got a guy offering me a used one on the bird board for $75 shipped....not sure if I should bite, or go for new....if I can.

I'll play it where it lies then Joe. Thanks
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Series9
post Apr 20 2006, 10:07 PM
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If you have access to any more rebuilt interior parts for the TurtleGirl project, I'll buy a new pump for you.

We need almost everything.
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rick 918-S
post Apr 20 2006, 10:33 PM
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Be very careful with your fuel connections. I had a biotch of a time building a fuel tight system. I used black plastic fuel line with barbed fittings. You will really want to watch this.
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Dr Evil
post Apr 21 2006, 05:32 AM
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Hey Joe,
sorry dude, I have nothing left. When I moved I gave it all to Al to sell and its all gone.

Rick,
The lines and stuff I have used for a while with my 2.0. I just had to add the fuel pump back in the stock location and then plumb it up. All of the CIS stuff past the pump is stock....wish me luck on this part.

Do you guys think that I should get the used one for $75?
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Dr Evil
post Apr 21 2006, 08:15 AM
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Ok, forgot to metion that the $75 one is a '77 pump.

I like to treat this place like an accessible data base for all 914 owners. So, I found some good info on different model bosch pumps that may work for other people wishing to convert to CIS, etc.

All of these pumps start with the 0 580 254 with the numebrs listed on the page being the last three numbers of the full part #.

*Bosch 910 pump is 200 litres per hour and supports 450 bhp at 73.5 PSI # 0 580 254 910
*Bosch 975 pump is 228 litres per hour and supports 500 bhp at 73.5 PSI # 0 580 254 975
*Bosch 984 pump is 228 litres per hour and supports 500 bhp at 73.5 PSI # 0 580 254 984
*Bosch 044 pump is 330 litres per hour and supports 730 bhp at 73.5 PSI # 0 580 254 044
*Bosch 040 pump is 235 litres per hour and supports 520 bhp at 73.5 PSI # 0 580 254 040

And more indepth info on these pumps can be found here:
http://clam.rutgers.edu/~dreadsct/resell/f...mp/fuelpump.txt
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Joe Bob
post Apr 21 2006, 08:25 AM
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My last CIS ride....I used the pump that came with it and it failed....Aase Brothers provided me with a new one as he was the source of the engine and he warranteed the parts.....I mounted it in the stock 1970 location.

One thing....there is a check valve in the neck of the pump. It helps keep up pressure for hot starts.....otherwise the pressure will bleed off and the head temp sensor won't allow the flapper to open and actuate the pump.....pissed me off something fierce when it failed as well.....

Butt the gud part is....it's a CHEAP part. Like only 12 bucks.
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Dr Evil
post Apr 21 2006, 08:48 AM
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Gonna have to figuer out how to use the check valve. It has a threaded end and such.

The page that i just posted saved me a possible $80 as I just found a new 975 bosch for $89 + shipping.

They all seem to have the inexpensive, screw on check valve, how did you end up using it? What mods did you have to do? I guess the stock pump had a built in check valve.....of course.
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Series9
post Apr 21 2006, 09:45 AM
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The banjo fitting goes over the check valve and the cap screws to the end of the check valve.

It makes a 90 degree turn out of the pump. It's very simple. There shouldn't be anything to figure out.
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Dr Evil
post Apr 21 2006, 11:55 AM
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Ah, now I see. It wasn't so clear to me from the pics.
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Dr Evil
post Apr 21 2006, 01:41 PM
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So my research has turned up several Bosch part numbers and vehicle applications. That being said Iam thinking of going with this one for $69 new. It is the 910 model

*Bosch 910 pump is 200 litres per hour and supports 450 bhp at 73.5 PSI # 0 580 254 910
0 580 254 910, 200l/h @ 5 bar


http://cgi.ebay.com/ebaymotors/ws/eBayISAP...me=STRK:MEWA:IT

Can't beat the price either.


Waddayathink?



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Dr Evil
post Apr 21 2006, 01:42 PM
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Quick question, is the check valve on the in or the out port? In would be awsome for my application, but I am doubting it.
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Flat VW
post Apr 21 2006, 06:23 PM
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Series9
post Apr 21 2006, 06:49 PM
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That will work and the check valve is on the pressure (out) side.
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Dr Evil
post Apr 21 2006, 07:04 PM
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ejm just got done hanging out with me and he brought me a used one to try out.

Kinda sad that so many people have helped over the course of my build that I have a hard time keeping track. Ed also sent me some FI nipples for my accumulator back last year for free. What a guy.

914club--> just a bunch of great people (IMG:style_emoticons/default/biggrin.gif)
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Series9
post Apr 21 2006, 07:35 PM
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The price on that new one was too good to pass up. I got one for TurtleGirl.
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