123 distributor

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Roger Eriksson
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Joined: Sun Jul 30, 2017 11:20 am
Sweden

123 distributor

#1

Postby Roger Eriksson » Sun Jul 30, 2017 11:58 am

I have installerad à 123 disributor in My E-type 4.2. It is the latest model 123 with bluetooth where you can insert the curve yourself. Which values are apropriate. I have vacum connected and crankshaft at 10 regress.

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christopher storey
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Location: cheshire , england
Great Britain

Re: 123 distributor

#2

Postby christopher storey » Sun Jul 30, 2017 8:58 pm

Roger : welcome to the board. For the present, i should adopt the standard curve for the 4.2 engine . Here is a link to it in the knowledge base

https://www.dropbox.com/s/rh8ugx7prwcds ... s.pdf?dl=1

This is actually for the S2 4.2 but there is no difference from the S1 for European specification cars with 3 SU carburetters . You need to look at page P.Y.s.3 for the details. Please note that the speeds and the degrees shown are all distributor rather than engine speeds. Therefore, to get the crankshaft speed information, you need to multiply everything by 2 . so that e.g. 2 -4 degrees at 650 rpm is 4 - 8 degrees at 1300 engine rpm, and 6.5 - 8.5 degrees at 1250 rpm is 13 to 17 at 2500 crank rpm and to all the figures shown you need to add also the static timing before Top dead centre ( usually 9 degrees crankshaft BTDC for 8:1 Compression, and 10 degrees BTDC for 9:1 cars) )

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juicerider
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Joined: Tue Oct 20, 2015 1:15 am
Location: Perth WA
Australia

Re: 123 distributor

#3

Postby juicerider » Wed Aug 02, 2017 1:16 pm

Yeah nice distributor, I put one on mine too.
Is your tachometer still accurate?
I had to also fit an RVI to RVC conversion board, so that it read correctly, but now it's more accurate than it was originally.

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Spark
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Joined: Sat Jul 20, 2013 2:53 pm
Great Britain

Re: 123 distributor

#4

Postby Spark » Mon Aug 21, 2017 9:10 pm

I have fitted this distributor and had rev counter upgraded
How does the Rev counter wire up now
One lead to coil
Where should I take the other from, just says ignition??

Thanks
Phil

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Spark
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Re: 123 distributor

#5

Postby Spark » Sat Aug 26, 2017 10:19 am

Can anyone advise please wiring connections
Thanks
Phil

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mgcjag
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Location: Ludlow Shropshire
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Re: 123 distributor

#6

Postby mgcjag » Sat Aug 26, 2017 11:38 am

Hi Phil...what car do you have....put the model/year in with your name as a signature......do you have a wireing diagram for your model.......how was the rev counter wired in befor.....if it says from ignition then this is a live feed thats supplied when you switch your ignition on......not knowing what mod you have done i would assume that it just connects into the wireing you removed it from.... so live from ignition switch to one side and other side to coil.....Steve
Steve
1969 S2 2+2 & Building a C type replica

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Spark
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Re: 123 distributor

#7

Postby Spark » Sat Aug 26, 2017 12:30 pm

Steve
It's a series 1 2+2
It was previously wired from the tacho generator with no ignition connection
I have had the speedo upgraded by JDO so I can fit the 123 ignition
One connection goes to the coil, it's where the other wire should be connected to

Thanks
Phil

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mgcjag
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Re: 123 distributor

#8

Postby mgcjag » Sat Aug 26, 2017 12:58 pm

Hi Phil....you need to go back to JDO and ask them how to wire up a tacho with their mod.....unless someone else chips in here with the answer......if you are saying that it just needs an ignition feed then you need a wire that is live once the ignition is switched on......Steve
Steve
1969 S2 2+2 & Building a C type replica

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