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Headlamps not raising: Pektron fault.

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Rich K
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Headlamps not raising: Pektron fault.

Postby Rich K » 22 Aug 2024 21:40

Hi,
Thought I’d share this one to add to the numerous posts on headlamp issues. The gold convertible is getting closer to being finished but on completing installation of the refurbished headlamp units we found that they wouldn't raise. Working through the wiring and components it transpired that a diode in the Pektron unit had blown. Luckily I found a good one in the spares stash. :D
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1980 TR7 drophead now repainted and started refitting plus V8 upgrade
1977 TR7 fixedhead awaiting restoration
1981 TR7 drophead bodywork and mechanicals now done, completing trim currently.
Ford Ranger Wildtrak
Jaguar XKR Supercharged

FI Spyder
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Re: Headlamps not raising: Pektron fault.

Postby FI Spyder » 24 Aug 2024 15:49

Back in the day, we'd just stop into Radio Shack (they are no more), pick up the part and fix it. :D
Good thing we don't have pektrons in N/A.
- - -TR7 Spider - - - 1978 Spitfire- - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 2013 Volt - Yellow TCT

Rich K
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Re: Headlamps not raising: Pektron fault.

Postby Rich K » 25 Aug 2024 13:16

Hi FI Spyder, no Radio Shack here anymore either but just bought a pack of 10 diodes off eBay for £1.65. For reference the diode in question is a 1N4001. So I”ll replace the diode and keep the Pektron unit as a spare. I didn’t realise you guys over there were lacking a Pektron :shock:
1980 TR7 drophead now repainted and started refitting plus V8 upgrade
1977 TR7 fixedhead awaiting restoration
1981 TR7 drophead bodywork and mechanicals now done, completing trim currently.
Ford Ranger Wildtrak
Jaguar XKR Supercharged

FI Spyder
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Re: Headlamps not raising: Pektron fault.

Postby FI Spyder » 26 Aug 2024 16:39

as I understand it, the pektron is used in the flicking of the lights (how ever else it affects the operation). we don't have that feature (requirement) in N/A so no pektron.
- - -TR7 Spider - - - 1978 Spitfire- - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 2013 Volt - Yellow TCT

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Re: Headlamps not raising: Pektron fault.

Postby Cobber » 26 Aug 2024 21:52

I rebuilt the pektron unit in my car, many years ago, and now don't use it.
It's purpose was to delay the lowering of the lights to allow for flashing.
As my car has driving lights fitted it's easier and sensible that the flashing duties are carried out by them instead of the headlights.
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Re: Headlamps not raising: Pektron fault.

Postby stevie_a » 27 Aug 2024 08:00

Cobber wrote:
As my car has driving lights fitted it's easier and sensible that the flashing duties are carried out by them instead of the headlights.


Yeah but is is not as cool ..... :D
If it's not broke don't fix it.

FI Spyder
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Re: Headlamps not raising: Pektron fault.

Postby FI Spyder » 27 Aug 2024 17:02

Not when you are trying to impress 9 year olds. :lol:
I used to flash my headlights (turning lights on and off with main switch) in parades when would come up to a couple of kids at curbside. Never failed to impress , surprise, get them excited and pointing as they had never seen something like that in their shot lives.
- - -TR7 Spider - - - 1978 Spitfire- - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 2013 Volt - Yellow TCT

Rich K
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Re: Headlamps not raising: Pektron fault.

Postby Rich K » 08 Sep 2024 21:16

New diode soldered in place so this Pektron unit can go into my spares stash.
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1980 TR7 drophead now repainted and started refitting plus V8 upgrade
1977 TR7 fixedhead awaiting restoration
1981 TR7 drophead bodywork and mechanicals now done, completing trim currently.
Ford Ranger Wildtrak
Jaguar XKR Supercharged

Howard_B
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Re: Headlamps not raising: Pektron fault.

Postby Howard_B » 18 Sep 2024 22:59

If anyone wants a set of circuit drawings which include full details to enable you to repairs Pektrons and the header tank level sensors, PM me & I will email you a copy.
Cheers
Howard

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