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3.0 carb install

Started installing my new set of webers in the 912-6 today.

First, yank out the CIS (Euro fuel dist, big port version, whats it worth?)



Then I had an empty engine bay....



Now I have the carbs trial fitted.



I need to find a few bits and pieces, one of the throttle linkages is little worn, and I need fresh fuel line and filters. I may change all the fittings over to AN's to match up with the rest of the lines in the fuel system. I'll be using my high pressure fuel pump, so I need to figure out the fuel circuit.

Another question I have, is what do I do with all the left over wires from the CIS harness?

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John Helgesen
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Old 03-10-2007, 02:08 PM
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Whay I did with the left over wires was to tie them up with zip ties as cleanly as I could to the harness that they branched off of.
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Old 03-10-2007, 03:33 PM
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Nice work,

make sure you get a top quality fuel pressure regulator, nou a cheap one with the dial. I believe Mallory units are what is supplied by PMO.

Also, very important..........a really good fuel fliter, I'm running a Racor that has a water seperator as well.

Cheers
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MikeČ

1985 M491
Old 03-10-2007, 03:38 PM
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Pressure gauge and plumbing supplied with the carbs.....don't know if I'd trust it with a CIS fuel pump.



Strongly considering the circulating system and all AN lines, either use PMO bars or XRP banjo fittings (if I can find them online somewhere)

Does anyone have experience with the PMO or XRP fittings?

Thanks!
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John Helgesen
Stahlwerks.com restoration and cage design

"Honest men know that revenge does not taste sweet"

Last edited by jhelgesen; 03-12-2007 at 05:40 AM..
Old 03-12-2007, 04:01 AM
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CIS fuel pump is OK. As long as you have a GOOD press regulator.

Highly recommend the AN fittings. PMO has the parts as well.

If you need pics I'll snap a few of my install.

Good Luck
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MikeČ

1985 M491
Old 03-12-2007, 04:39 AM
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Thanks Mike, any and all pictures are welcome!
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John Helgesen
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"Honest men know that revenge does not taste sweet"
Old 03-12-2007, 04:44 AM
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John,
I just put 3300 miles on my '74 911 with Webers and it ran great! You'll love the sound and performance of the carbs! Good work!
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Art Zasadny
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Old 03-12-2007, 05:31 AM
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ooops, forgot the picture of the gauge in earlier post....

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John Helgesen
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"Honest men know that revenge does not taste sweet"
Old 03-12-2007, 05:40 AM
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