Lotus Elan

No Spark

PostPost by: Mrozik » Tue Sep 15, 2020 3:58 pm

I have just completed a rebuild of my 1968 Elan+2. All is well but I can get a spark!

As I replaced many of the components i.e. coil, HT leads, distributor cap, points I guess something was not right.

I tried using the old coil, HT leads and distributor cap but there was no change

Grateful for an suggestions on how to proceed?

Thanks
John
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PostPost by: SENC » Tue Sep 15, 2020 5:27 pm

Pull out the multimeter and start at the very beginning - you'll find it!

LucasIgnitionTesting1.jpg and


LucasIgnitionTesting2.jpg and


LucasIgnitionTesting3.jpg and
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PostPost by: SENC » Tue Sep 15, 2020 5:29 pm

LucasIgnitionTesting4.jpg and


LucasIgnitionTesting5.jpg and


LucasIgnitionTesting6.jpg and
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PostPost by: SENC » Tue Sep 15, 2020 5:32 pm

LucasIgnitionTesting7.jpg and


LucasIgnitionTesting8.jpg and


LucasIgnitionTesting9.jpg and


LucasIgnitionTesting10.jpg and
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PostPost by: awatkins » Tue Sep 15, 2020 6:05 pm

Henry —
What book is that?
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PostPost by: SENC » Wed Sep 16, 2020 12:14 am

awatkins wrote:Henry —
What book is that?


Lucas Fault Diagnosis Service Manual - Catalog No XIA116
It is a reprint, I suspect I picked it up off ebay. Covers the old coils, distributors, starters, generators, alternators, and wiper motors
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PostPost by: Mrozik » Wed Sep 16, 2020 5:49 am

Many thanks for the instructions.....John
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PostPost by: Andy8421 » Wed Sep 16, 2020 6:18 am

There are some excellent Lucas technical references - I believe published in the 50s as a series of distance learning courses for technicians in Lucas' export markets.

Clear, well written and well illustrated - a number are linked to in various threads in this forum.

While I understand the reason, it make a pleasant change from 'Plug the fault code reader into the OBD port. Read off fault code. Replace indicated module.'
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PostPost by: Steve Brooks » Wed Sep 16, 2020 8:06 am

Hello John, I recently had the same problem after a long time storage and eventually changed all the same things that you have,from the coil to the plugs.If you haven’t already tried,take the coil ht lead out of the distributor end and see if it sparks.That way you can work back or forward,don’t assume new stuff is ok check with a meter ie ignition coil.Good luck.
72 Elan +2S 130/5 72/10/0963L
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PostPost by: MarkDa » Wed Sep 16, 2020 2:17 pm

Yes - the Lucas manuals are great.
Very thorough, systematic, step by step, easy to follow.
I posted up half a dozen or so a few years ago.

Here's a link to the complete fault finding manual:

https://www.scottysretroworkshop.co.uk/ ... -PDF-2.pdf

I'd have uploaded it as pdf but it's 2.8MB
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PostPost by: Mrozik » Wed Sep 16, 2020 4:07 pm

Many thanks for the guide it was extremely useful and I found the problem - faulty new points!
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PostPost by: pharriso » Wed Sep 16, 2020 7:27 pm

Thanks for posting, I am sure it will be most useful.
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