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> The Doc's tranny waggin'
Jeffs9146
post Jun 3 2012, 10:20 PM
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Looks good doc!

FYI you probably can eliminate the decel valve like I did!
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Dr Evil
post Jun 4 2012, 04:45 AM
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I considered decel elimination, but my reading showed it to be better to have. But, since it is not necessary it may just go away. Too bulky.
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Dr Evil
post Jun 6 2012, 08:01 PM
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I sure am having some luck with this step of the build. I emailed my detailed order for FI parts and hoses to the guy at DeLorean Auto Parts only to not have an answer back.....similar to last time. So I call to find out, via the answering machine, that they are packing and getting ready for a big DeLorean meet. This meet is to happen, I find on line, weekend after next (IMG:style_emoticons/default/rolleyes.gif) How much longer must I wait?! (IMG:style_emoticons/default/hissyfit.gif)
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Dr Evil
post Jun 8 2012, 04:28 PM
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I sent another email to the hose guy to ask about an ETA. In the mean time, I made a diagram of the fuel system with a legend, I figured I would share.

Attached Image

Bus CIS Legend
1. NPT to tank – Barbed to hose
2. Low pressure ~12mm ID fuel hose
3. 12mm nipple
4. 12mm banjo to 6mm angled barb
5. 6mm ID high pressure fuel hose
6. 14mm Swivel fitting with 6mm barb
7. Swivel fitting on hard line
8. Hard line
9. Swivel fitting on hard line
10. 14mm swivel to 6mm barb
11. 6mm ID high pressure fuel hose
12. 6mm barb to 12mm banjo

CSV line
13. 12mm banjo to SSB
14. SSB line
15. 8mm banjo

WUR supply
16. 8mm swivel
17. SSB line
18. 10mm swivel
19. SSB line
20. 6mm barb to 12mm banjo

21. 12mm double banjo bolt
22. 6mm barb to 12mm banjo
23. Low pressure fuel line, ¼” ID
24. ¼” barb to NPT
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TravisNeff
post Jun 9 2012, 11:07 AM
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Why is the filter after the pump and accumulator?
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Dr Evil
post Jun 9 2012, 11:10 AM
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I wonder that as well, but that is the correct way according to all diagrams I have seen. Screwy. I am looking into a high flow one before the pump. The filter is a beast built to handle pressure.
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Katmanken
post Jun 9 2012, 11:53 AM
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Vanagon has a huge filter after the pump, and it may be there to act as a "pseudo-accumulator" and to catch crap coming out of a disintegrating pump to protect the rest of the EFI.

I like that you are putting a second filter in front of the pump. Had to go to that configuration when a load of bad gas dumped about 8 cups of crap into my fuel tank. The crap looked like clay, water, and ground up fuel pump from the gas company storage tank pump. Chewed up the expen$ive fuel injection pump, so consider the pre-filter as cheap insurance.
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Jeffs9146
post Jun 9 2012, 12:03 PM
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(IMG:style_emoticons/default/agree.gif) I put a prefilter before the pump also!
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Dr Evil
post Jun 9 2012, 12:22 PM
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What pre-filter did you use? It would save me some time looking for a suitable one.
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Jeffs9146
post Jun 9 2012, 12:40 PM
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QUOTE(Dr Evil @ Jun 9 2012, 11:22 AM) *

What pre-filter did you use? It would save me some time looking for a suitable one.


It took me a while looking through the parts book in Napa to find one with the proper sized in and out lines! You need to get your lines sorted out at the tank and then find the proper filter to attach to those lines. The 914 tank is probably different sized than the Bus so knowing what I have probably wont help your situation!

I don't have time today to open up the botom of the car to look at the filter part number, sorry!
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Katmanken
post Jun 9 2012, 03:28 PM
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Measure the fuel line ID or the pump inlet barb, go down to your FLAPS, go to the huge fuel filter selection board, and pick one that matches the fuel line ID and the amount of money in your pocket. I used the translucent rectangular plastic ones that were non-metric as they were cheap and worked great.

25.4 mm per inch means a 6mm id is about a quarter of an inch, 8mm is about 5/16.
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Dr Evil
post Jun 9 2012, 03:58 PM
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The inlet is 12mm and the FP is putting out 70-90 psi so I am reticent to use just any old filter. However, I would expect any big honking one would work. It needs to flow (IMG:style_emoticons/default/smile.gif)
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Lennies914
post Jun 9 2012, 04:05 PM
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Mike, fuel pressure shouldn't matter. If I'm reading this correctly and you're doing a "pre filter" you're on the suction side of the pump.
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Dr Evil
post Jun 9 2012, 04:07 PM
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Clarified my post. It needs to be able to flow, yes.






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Lennies914
post Jun 9 2012, 04:14 PM
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QUOTE(Dr Evil @ Jun 9 2012, 03:07 PM) *

Clarified my post. It needs to be able to flow, yes.



(IMG:style_emoticons/default/thumb3d.gif) gotcha!
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Katmanken
post Jun 9 2012, 08:48 PM
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Evil,

Don't worry about the flow too much. All fuel injection systems use a honkin big high pressure high volume pump, and then bleed off the excess pressure and flow.

Remember the plastic fuel filter found in the 4 cyl 914's? That's plenty big enough. All you need to do is find a filter with the correct inlet and outlet size that is at least close to that in size. They tend to come in metal or plastic. After the load of crappy fuel episode, I like the translucent ones because you can see the crud. When your filter gets full, the pump sound volume also increases.


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rick 918-S
post Jun 9 2012, 09:54 PM
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I didn't run a pre-filter. Just a huge one after the pump and accumulator.
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Dr Evil
post Jun 9 2012, 11:02 PM
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My tank doesnt have a filter sock anymore as it is modified. I want to keep particles out of the pump. Seems like an easy way to add cheap protection.
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Dr Evil
post Jun 10 2012, 10:42 PM
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I have been able to communicate with the hose maker. He changed his tune in one email and wanted the ends sent to him. I sent him the email where he said that those were included, and that I didnt have the ends anyway and he agreed. I calculated the cost for everything and will be sending a MO for the kit. He will not be able to make it until sometime after next week. At least the process is still in motion. So far the cost is looking good (IMG:style_emoticons/default/smile.gif)
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Dr Evil
post Jun 18 2012, 08:12 PM
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Money in the mail today with list of hoses and fittings. I hate waiting (IMG:style_emoticons/default/smile.gif)
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