Small (or maybe not) project. 91 elan

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Re: Small (or maybe not) project. 91 elan

Postby Tuga2112 » Sun 08.01.2023, 19:35

Some progress has been made regarding the alternator


1991 elan se
1991 elan se project
91 MR2 Turbo (import) project
94 Celica GT4 (Import)
94 4Runner
98 Celica SR

Youtube Channel @Tuga2112 M100 repair videos
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Re: Small (or maybe not) project. 91 elan

Postby RonR » Sun 08.01.2023, 20:34

Hi Joao,

The sandwich of metal plates contain the rectifier diodes, they're heavy duty types and although they get hot they seldom fail.
Once I'd cleaned everything I checked mine with the diode tester function on a multimeter.
Just checked my phone + camera. I'm afraid there were no photos of the dismantling of the alternator, and I can't say I remember exactly how I removed that bearing - perhaps Simon will be along soon....
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Re: Small (or maybe not) project. 91 elan

Postby Tuga2112 » Sat 14.01.2023, 15:34

i have figured out how to get the bearings out without any problem.

the rectifier diode is definitely faulty, as the resistance across one of the connections is considerably higher than the other 2.

I contacted a parts supplier who didnt have anything in the parts cross reference for the elan's alternator. however after a bunch of picture exchanges with measurements they seem confident that they found a suitable replacement.
when i get that situation resolved i will relay the findings. But theres a chance that going forward we have another replacement part cross reference added to the knowledge base.
1991 elan se
1991 elan se project
91 MR2 Turbo (import) project
94 Celica GT4 (Import)
94 4Runner
98 Celica SR

Youtube Channel @Tuga2112 M100 repair videos
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Re: Small (or maybe not) project. 91 elan

Postby Tuga2112 » Fri 27.01.2023, 14:44

1991 elan se
1991 elan se project
91 MR2 Turbo (import) project
94 Celica GT4 (Import)
94 4Runner
98 Celica SR

Youtube Channel @Tuga2112 M100 repair videos
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Re: Small (or maybe not) project. 91 elan

Postby abmunro » Fri 27.01.2023, 16:37

I had a replacement rear window sewn into my Alpha Spider by KISH TRIM in wearside

Did real good job
91 Elan SE 24k miles, 270 BHP @ 1.25 barg. Roll hoops + fairings+ speed humps Elise lights. S2 alloys. Nitrons& Eibachs,AP's front & Hi Spec rear brakes
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Re: Small (or maybe not) project. 91 elan

Postby Tuga2112 » Fri 27.01.2023, 22:01

after posting the video for the alternator being rebuild. i have spent the afternoon re-installing the alternator.

now on iddle the voltage meter is reading 16v which seems a bit high.
so. im going to add another thread on the electrical section to get some input from the certified sparky-es before starting the car again.

no video of installing the alternator will be released. because i tried to film. but clearances are so narrow that its practically impossible to get a camera to point at what you are doing.
depending on the conclusions about the 16v i may be refitting the subframe (and doing a video on that topic) or possibly removing the hood.
1991 elan se
1991 elan se project
91 MR2 Turbo (import) project
94 Celica GT4 (Import)
94 4Runner
98 Celica SR

Youtube Channel @Tuga2112 M100 repair videos
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Re: Small (or maybe not) project. 91 elan

Postby chrism » Fri 27.01.2023, 22:53

Aw, I feel for you...that's bad luck Tuga :( .

If it's any consolation I felt that your vid was really informative and certainly gives me confidence to have a go (assuming the recon parts are still available...)

Imo it can only be the voltage reg at fault? In your place I think I'd put the old one back in and give it a whirl.

The job was certainly worth it to renew the bearings and brushes, clean it out and 'sort' that overheated diode bridge.

Perhaps get another voltage reg to keep as spare if that was the fault. (What would be the odds of getting two bad ones in a row?)
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Re: Small (or maybe not) project. 91 elan

Postby 378S2 » Sat 28.01.2023, 09:26

If it is any use to you, here's my 'normal' at idle.
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