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Uh..I think I made a mistake..

 
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RexS  



Joined: 13 Oct 2011
Posts: 22
Location: St. Paul, Minnesota

PostPosted: Tue Nov 06, 2012 9:55 pm    Post subject: Uh..I think I made a mistake.. Reply with quote

I've got a 1980 924na that had been sitting for 6 years. New fuel pumps and soft fuel lines and fuel filter. It started and ran! OK at full throttle but at the bottom end, it was staggering a bit.

I thought I'd take apart the fuel distributor and clean it...even after what I read here.

I took it apart and it is now clean as a whistle put it back in the car but only the starting injector got gas. I took another swing at the cleaning and went just a little farther into it. I popped the 4 little allen wrench headed caps off of the top and found another little allen wrench insert. Here is where I think I made a mistake. I took them out. They had a conical end and a little "O" ring. They had some crud on them and now they gleam. Of course, they probably are some sort of adjuster and I have now lost their original settings.

How big a problem have I created?
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morghen  



Joined: 21 Jan 2005
Posts: 9095
Location: Romania

PostPosted: Tue Nov 06, 2012 10:33 pm    Post subject: Reply with quote

You have to buy a new fuel distributor, those are not serviceable..at least not by DIYers. Dont mess with the fuel distributor ever again...they are very rarely cloged(fuel filters do work)...and when they are..just buy a good one.

The staggering probably comes from poor mixture and spark advance settings or vacum leaks..
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bnoon  



Joined: 12 Oct 2009
Posts: 607
Location: West Des Moines, IA USA

PostPosted: Wed Nov 07, 2012 4:27 am    Post subject: Reply with quote

I totally disagree. I rebuilt and sold a few distributors and they were great. Never had any issues rebuilding them. Biggest thing is to make sure the O-rings are properly sized and don't tear when it goes together.
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morghen  



Joined: 21 Jan 2005
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PostPosted: Wed Nov 07, 2012 4:48 am    Post subject: Reply with quote

you took them fully appart and when you put them back together they didnt leak?
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RexS  



Joined: 13 Oct 2011
Posts: 22
Location: St. Paul, Minnesota

PostPosted: Wed Nov 07, 2012 11:18 am    Post subject: How about an exploded view of this thing Reply with quote

Does anyone know where I can lay my hands on an exploded view of an early '80s fuel distributor?
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kcoyle  



Joined: 15 Jan 2011
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Location: Long Island, NY

PostPosted: Wed Nov 07, 2012 10:49 pm    Post subject: Reply with quote

http://www.porsche928forums.com/download/manuals/CISRebuild.pdf
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bnoon  



Joined: 12 Oct 2009
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Location: West Des Moines, IA USA

PostPosted: Wed Nov 07, 2012 11:36 pm    Post subject: Reply with quote

morghen wrote:
you took them fully appart and when you put them back together they didnt leak?


OK so maybe a few issues, but they only ever leaked if I made a mistake such as not getting on enough gasket Indian Head Gasket Shellac or had another hardware issue. It took me a few tries on some of them but I always got them done and working without any leaks. I had pictures of the rebuild on my stock one on here but those pictures and my personal website went bye-bye about a year ago and I didn't get a chance to save any of the pictures. Stupid divorce. Ah well...
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RexS  



Joined: 13 Oct 2011
Posts: 22
Location: St. Paul, Minnesota

PostPosted: Thu Nov 08, 2012 12:08 pm    Post subject: Yeah..but what about the little adjusters? Reply with quote

I appreciate the info and the article is great. But on page 4 it shows a fuel distributor with just banjo-bolts and lines running off (presumably) to the injectors. Then on page 10 it shows more like what I have. The little adjusters set aside each banjo-bolt.

The article is silent about them.

I agree that I can get the distributor back in the car and I think I can do it without a leak. I'm just not sure how to set up those adjusters to get the car running.
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kcoyle  



Joined: 15 Jan 2011
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Location: Long Island, NY

PostPosted: Thu Nov 08, 2012 12:28 pm    Post subject: Reply with quote

Sorry, I don't know what those are. My car does not seem to have them. (82 turbo)



Is there a part number on it? Maybe this can help.

http://www.specialtauto.com/porsche-parts/index.html
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RexS  



Joined: 13 Oct 2011
Posts: 22
Location: St. Paul, Minnesota

PostPosted: Thu Nov 08, 2012 9:51 pm    Post subject: No, you have them right there Reply with quote

Right along side each banjo-bolt in your picture is a little allen head cap screw. If you back that out, it is just a cover for another allen wrench inset pin with a little O-ring. The end of the pin appears to reach down and limit the travel of the little hat ring at the end of the spring under the banjo-bolt.

How do I upload pictures?
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Kens_74_911s  



Joined: 01 Mar 2011
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PostPosted: Sun Nov 11, 2012 10:12 am    Post subject: cis Reply with quote

Thanks for that link, kcoyle!
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Kens_74_911s  



Joined: 01 Mar 2011
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Location: Southern Pines , North Carolina USA

PostPosted: Sun Nov 11, 2012 10:15 am    Post subject: Reply with quote

bnoon wrote:
morghen wrote:
you took them fully appart and when you put them back together they didnt leak?


Indian Head Gasket Shellac

Yes this is what I use on the 911 cases also good stuff...
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74 911s widebody
96 BMW 750iL
99 BMW 328i
81 VW MK1-1.8 GTI, 5 spd Pickup
02 Explorer (wife's)
92 BMW 735iL Parting
84,85,86x3,87,944. 82-924,88-924s parted
68, 70, 72, 73, 911~ 70,73 914 past Pcars
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