LCGB Forums

The ability to post messages is restricted to LCGB members. Any questions contact us at lcgbadmin@googlemail.com

Electrex

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Electrex

Postby rossclark » Sun May 12, 2019 11:19 pm

Had the GP out for the first time since changing the engine.

This motor has an Electrex ignition setup. It's supposed to be an AC setup with the small BGM type regulator.

I've wired it as per a 'normal' DC ignition with two yellows to a Podtronics / Wassell type rectifier. Everything checked out DC lights horn etc. Today though it blew the headlight bulb straight off as soon as I switched it on with the motor running at tick over. The bulb didn't seem any brighter than normal before it popped. Tail light, sidelight and rear light are OK.

Across the battery it has 13.6V at tick over and with a good rev that goes up to about 14.4V which is kind of what I'd expect.

Any thoughts on what to check?

Also has anyone had any success with getting a SIP speedo to work on this set up?
User avatar
rossclark
 
Posts: 2463
Joined: Fri May 30, 2014 11:23 pm
Location: Lanarkshire

Re: Electrex

Postby HxPaul » Mon May 13, 2019 8:04 am

It may have been a duf headlight bulb.
User avatar
HxPaul
 
Posts: 1410
Joined: Fri May 30, 2014 9:18 am
Location: Halifax

Re: Electrex

Postby foremanbob » Mon May 13, 2019 11:22 am

rossclark wrote:Had the GP out for the first time since changing the engine.

This motor has an Electrex ignition setup. It's supposed to be an AC setup with the small BGM type regulator.

I've wired it as per a 'normal' DC ignition with two yellows to a Podtronics / Wassell type rectifier. Everything checked out DC lights horn etc. Today though it blew the headlight bulb straight off as soon as I switched it on with the motor running at tick over. The bulb didn't seem any brighter than normal before it popped. Tail light, sidelight and rear light are OK.

Across the battery it has 13.6V at tick over and with a good rev that goes up to about 14.4V which is kind of what I'd expect.

Any thoughts on what to check?

Also has anyone had any success with getting a SIP speedo to work on this set up?


Sounds like you had a floating earth. Check that you have continuity of earth between the regulator and the headlight bulb
User avatar
foremanbob
 
Posts: 198
Joined: Sat May 31, 2014 6:02 pm
Location: Renfrewshire

Re: Electrex

Postby rossclark » Fri May 17, 2019 12:20 am

Sorry for the delay in responding, been away this week, and thanks.

I'll have a dig at it this weekend.
User avatar
rossclark
 
Posts: 2463
Joined: Fri May 30, 2014 11:23 pm
Location: Lanarkshire

Re: Electrex

Postby rossclark » Fri May 17, 2019 12:22 am

HxPaul wrote:It may have been a duf headlight bulb.


Hoping so, have just got back to find a couple of replacements arrived in the post.
User avatar
rossclark
 
Posts: 2463
Joined: Fri May 30, 2014 11:23 pm
Location: Lanarkshire


Return to Series 1, 2 & 3

Who is online

Users browsing this forum: No registered users and 5 guests