Lotus Elan

Distributor identification help

PostPost by: Andrewelan » Wed Jul 15, 2020 11:22 am

Hi folks

Based on points type, I think what I have here is a Lucas 43D?
diz1.jpg and

Could a kind soul please confirm for me?
diz2.jpg and

Any thoughts on the engraved identifications "103TC" and "6/99"?

Many thanks
1963 Nuffield 460
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PostPost by: alan.barker » Wed Jul 15, 2020 12:00 pm

On the opposite side to the "Lucas" there should be a moulded pad on the outside with ident stamped.
Alan
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PostPost by: fatboyoz » Wed Jul 15, 2020 12:18 pm

Hi Andrew,
It is from a company in the UK called Aldon.
It looks to be their standard Twincam distributor with points.
103TC is the Twincam number. I guess the 6/99 is a date.

https://www.aldonauto.co.uk/ignition/di ... am-engines

Cheers,
Colin.







Andrewelan wrote:Hi folks

Based on points type, I think what I have here is a Lucas 43D?
diz1.jpg

Could a kind soul please confirm for me?
diz2.jpg

Any thoughts on the engraved identifications "103TC" and "6/99"?

Many thanks
'68 S4 DHC
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PostPost by: Andrewelan » Wed Jul 15, 2020 1:00 pm

Thanks both

Alan there's no moulding on t'other side just the blanking plate where vac advance would be

Colin, that looks relevant! I can always call them to clarify
1963 Nuffield 460
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1996 SL500
2006 E46 318Ci
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PostPost by: sprintsoft » Wed Jul 15, 2020 8:15 pm

Hi Andrew,

Colin has it right, Aldon did one for me a while back and they seem to recondition whatever body is to hand at the time and build in the necessary components.

If you've not checked it with a timing light then I would find out from them what advance curve they set this up with as it may, or may not, be the right one for your carb/motor combination.

Iain
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74 S130/5 - 1931L
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PostPost by: ncm » Wed Jul 15, 2020 8:50 pm

Based on my experience of a 103TC distributor bought in the early 90's I would remove the base plate to check what is marked on the advance mechanism. Mine was marked with 13 degrees (26 crankshaft)... somewhat more than you would expected to see for an item advertised as "A non-vacuum distributor which suits most twin cam engines from standard to virtually full race."
Brian.
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PostPost by: sprintsoft » Wed Jul 15, 2020 9:02 pm

Agreed.

This is where it's dependent on the carbs you have, Strombergs are normally matched to a different distributor type to the Weber.

On Webers you will have 10 or 12 degrees static, then plus 14 on the centrifugal advance giving a total around 26 degrees crankshaft.

The Stromberg (UK non-emission) needs 9 static + 24 centrifugal = 33 total.

Iain
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PostPost by: Andrewelan » Thu Jul 16, 2020 7:15 am

Its on Weber carbs

Thanks for tips, will pop the contacts off and have a look for any advance details
1963 Nuffield 460
1972 Plus 2 S130
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1996 SL500
2006 E46 318Ci
2016 F11 520d
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PostPost by: Andrewelan » Thu Jul 16, 2020 10:50 am

10 degrees

Question still remains....is this a 43D type?
1963 Nuffield 460
1972 Plus 2 S130
1987 E28 M5 #180
1996 SL500
2006 E46 318Ci
2016 F11 520d
2018 T6 150TDi DSG
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PostPost by: alan.barker » Thu Jul 16, 2020 10:57 am

Or a 23 type :?
Alan
p.s. the condensor is not the same size. I think the 43 is bigger.
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PostPost by: 69S4 » Thu Jul 16, 2020 1:36 pm

I thought the 23D used clips to secure the cap whereas the 43D used screws, but as I've only had a couple of each it might be luck. The last 43D I bought (from PM) came with 7 degree bob weights (=14 degree crank advance). My Stromberg engine was so flat with that setting I began to wonder if something was seriously wrong. Because it was a new distributor it took me ages to work out it was wrong bob weights lack of advance.
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PostPost by: Andrewelan » Thu Jul 16, 2020 5:51 pm

Having delved further its a 43.

23 has external male spade connection for LT, whereas 43 has a wire emerging with female connector
23d.jpg and
23D


23 has long clips from base of body, 43 short clips from top of body
Lucas-NOS-41404-E-43D4-Distributor-NO.jpg
43D
Lucas-NOS-41404-E-43D4-Distributor-NO.jpg (86.03 KiB) Viewed 365 times
1963 Nuffield 460
1972 Plus 2 S130
1987 E28 M5 #180
1996 SL500
2006 E46 318Ci
2016 F11 520d
2018 T6 150TDi DSG
User avatar
Andrewelan
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Posts: 57
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Location: Grantham, Lincolnshire

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