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Alternative distributor connector plug

 
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RC  



Joined: 25 Mar 2007
Posts: 2637
Location: Australia

PostPosted: Tue Mar 18, 2008 12:03 am    Post subject: Alternative distributor connector plug Reply with quote

From searching previous posts I believe the 2 terminal electrical connector to fit the reluctor distributors (most 924 and S1 931s) is identical to that on some other European cars with Bosch dizzys. It is not available from Porsche but read that it can be got at Audi dealers.

So does anyone know what other makes, models and year is the same or direct me to a source anywhere in the world. Have tried 2 Bosch shops locally who said it was a Porsche part but I really think they just couldn`t be bothered cross referencing parts and probably getting a $5 plug in from Germany.

Would much prefer to get a new one (with clean terminals) and any leads will be appreciated.

TIA,
Roger
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sparky  



Joined: 27 Nov 2002
Posts: 772
Location: Malta

PostPosted: Tue Mar 18, 2008 12:30 pm    Post subject: Reply with quote

Hey Buddy,

You are right, it is a common part for some other models of cars.

The guy that gave my car a once over changed it just to be on the safe side. It only costs a couple of $$.

IIRC the box which the part was in, is still in the car. I am going to get up real early to try and get alot done on the car, so I will check when I get out to it

But it is definately a common part. Just to be sure, you are talking about the small part which mounts onto the distributor?

SparkY
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1976 Euro 924 (The 945) - Full 951 Brakes/Suspension

1998 Boxster with goodies
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RC  



Joined: 25 Mar 2007
Posts: 2637
Location: Australia

PostPosted: Tue Mar 18, 2008 9:55 pm    Post subject: Reply with quote

Thanks for the reply Mark.

Heres a pic of the socket on the dizzy that it connects to. Never had one and I dont even know what they look like but they must fit that. Made one up from some spade connectors and heatshrink but am a bit sus about it. I am very intermittently loosing the tach signal to my EFI and so eliminating all possible causes.



If it looks like the correct one could you please post any part numbers on the box. Will make it a lot easier chasing one up here. You think its hard to get stuff in Malta, mate this is a bigger island and I cant get $hit.

Cheers,
Roger
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Rich H  



Joined: 10 Jun 2007
Posts: 2665
Location: Preston, Lancs, UK

PostPosted: Tue Mar 18, 2008 10:48 pm    Post subject: Reply with quote

That was exactly what I had fitted to my car, couple of tiny spade connectors and loads of tape

I found a replacemetn in a scrap yard and soldered that on. I recently chopped it off again, I'll see if I can find it. Should only be pnce to post out if I can find it.

Remind me later and I'll have a rummage through the electrical detritus I call my spares pile and see if I can find it.
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1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec
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RC  



Joined: 25 Mar 2007
Posts: 2637
Location: Australia

PostPosted: Tue Mar 18, 2008 11:10 pm    Post subject: Reply with quote

Thanks for the offer Rich.
May take it if I cant get a new one but will try to first.

Have an annoying very intermittent no start problem too on my MS2 that I traced to the tach signal dropping out. Just discovered it is the pickup coil. Initially checked OK but now I rechecked it and got different resistance readings. Stripped the dizzy and with it out resistance changes with flex and pressure so has a broken winding.

They are $30-$40 in the states and hundreds here so I might try rewinding the former and see if it works till I can get a new one. Hopefully not all that critical with the MS2 VR input stage.

Still after the connector part numbers though.

Roger
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Rich H  



Joined: 10 Jun 2007
Posts: 2665
Location: Preston, Lancs, UK

PostPosted: Tue Mar 18, 2008 11:36 pm    Post subject: Reply with quote

I'll have a look anyway, there might be a number on it.
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1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec
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924RACR  



Joined: 29 Jul 2001
Posts: 9066
Location: Royal Oak, MI, USA

PostPosted: Tue Mar 18, 2008 11:49 pm    Post subject: Reply with quote

We've had long-standing and horrible ignition issues associated with this stupid connector on our racecars.

We improved things with the little spade connectors, but still get some cut-out at the top end, in the 5000-6000rpm range.

I think our plan for this year is to solder on leads to the pickup coil, and then swap in a better weatherpak connector. Thanks for the reminder, I forgot about it! Better put it on the to-do list...
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dpw928  



Joined: 02 Nov 2002
Posts: 1860
Location: owasso, ok 74055

PostPosted: Wed Mar 19, 2008 12:40 am    Post subject: Reply with quote

On the 928's this is known as the "notorious green wire". It has the spade connectors but they connect inside the distributor. The other end is a 2 pin Bosch type connector that is exposed to the engine heat above the radiator hose and often disintegrates. To add to the misery, Porsche supplied some of these with the connections reversed in manufacturing. $50 for a shielded 3' wire with two connectors!!!!!

Hope someone can come up with something better.

Dennis
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sparky  



Joined: 27 Nov 2002
Posts: 772
Location: Malta

PostPosted: Wed Mar 19, 2008 8:21 am    Post subject: Reply with quote

I had a look at mine and it is different to the one you posted a pic of. Mine has a green and black wire coming out of the tiny black box. Im not sure if it will work, if you think it will, I will send all the information on the pieces.

Another route you might want to consider is the hot spark kit for the distributor. They are always on ebay. I dont know much about it, but just thought it might be an idea

Linky:
http://cgi.ebay.com/ebaymotors/Electronic-Ignition-Conversion-for-Porsche-912E-914-924_W0QQcmdZViewItemQQcategoryZ33691QQihZ021QQitemZ310030999504

Cheers,
SparkY[/url]
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1998 Boxster with goodies
2002 3.0 Xtype 4wd sport
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RC  



Joined: 25 Mar 2007
Posts: 2637
Location: Australia

PostPosted: Wed Mar 19, 2008 9:52 pm    Post subject: Reply with quote

Rich H wrote:
I'll have a look anyway, there might be a number on it.

Ta.
Dont suppose you recall if the terminals look like the ones on standard bosch injector connectors? same as the stock CIS connectors. May be able to replace the actual terminals?

924RACR wrote:
Quote:
I think our plan for this year is to solder on leads to the pickup coil, and then swap in a better weatherpak connector.

Good idea Vaughan. hard to beat the integrity of a soldered joint and weatherpack connector seals.

This connector appears a real PITA even if you have one! Would like to try one with new terminals though and see how it goes. Seriously, would be good to have them gold plated, like modern hi spec connectors.

Thanks for checking it out Sparky. IIRC I thought you had points from one of your previous wiring questions. That ebay replacement hall sensor unit looks like an excellent substitute for points, however it wouldnt work with the VR system and ignition unit if that were used. Would be a good squarewave input to an aftermarket system or for EFI/spark. As I originally had a points dizzy I know the mounting plate is different between the VR coil one so it would only be an easy fit to a points dizzy.

My problem was the pickup coil. Found a new replacement cheap at Rock Auto. A closeout special at $13. They still have 2 left if anyone is interested, just thought I`d share.
http://www.rockauto.com/catalog/raframecatalog.php?carcode=1263259&parttype=7176

Will take at least a week to get here and I want to drive my car meanwhile so I stripped off the old winding, and rewound the former by bolting it in a drill on low speed. Got some copper wire 0.2mm and let her rip. Only took a few minutes to rewind what took an hour to remove, thin 0.1mm dia and potted in resin. Only a fraction of the resistance and less than half as many turns but IT WORKS! Probably wouldnt generate sufficient voltage to trigger the stock unit but perfect fed into my MS2.

Wouldnt recommend it as an economical repair but its heaps better than driving a ford for a week!

Roger
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