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TR7 Headlight Motor (electricity)

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oliviertr7
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Posts: 55
Joined: 16 Mar 2018 19:57
Location: FRANCE

TR7 Headlight Motor (electricity)

Postby oliviertr7 » 16 Apr 2018 20:52

Hello
the diodes of my headlight engines aren't working
above it is written: LUC 35 8805 76
do you know how to replace these diodes? (références)

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oliviertr7
Scuttle Shaker
Posts: 55
Joined: 16 Mar 2018 19:57
Location: FRANCE

Re: TR7 Headlight Motor (electricity)

Postby oliviertr7 » 19 Apr 2018 20:36

good solved

the problem is rare, but those who would like to help themselves, here is a little tutorial.
the diodes found in the headlight motors are used to distribute the current for lifting and lowering.
1 operation of a diode:

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2 connections

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 3 diode replacement

the diodes of origin lucas 35 8805 76 are 40 years old and are now very difficult to find,  the alternative is diode 1N 4007 1A 1000V which is very easy today

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 4 renovated engine

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cost of operation 20cents x4 for diodes and about two hours for insta llation and welding.
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Beans
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Re: TR7 Headlight Motor (electricity)

Postby Beans » 20 Apr 2018 06:46

Thx for sharing !
So far never had any problems with the lifting mechanism.
But good to bear in mind :wink:
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1976 TR7 FHC (currently being restored ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng)

http://www.tr7beans.blogspot.com/

Howard_B
Rust Hunter
Posts: 167
Joined: 09 May 2015 16:11

Re: TR7 Headlight Motor (electricity)

Postby Howard_B » 29 Apr 2018 18:25

Olivier,

I love the idea of welding a diode into the circuit. Face mask down, welding torch at the ready - a quick flash and the mechanism vanishes in a puff of smoke...

Tu parle l'anglais tres bien, mais l'idea c'est trese amusant pour un rosbif :)

Salutations

Howard

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