[Mgs] FW: Hazard flasher question

[Hans Duinhoven]

I can confirm Paul’s last sentence. My February 1971 BGT has a similar issue sometimes.

Rocking the hazard switch a few times always helps.

It still is the original switch and so is the indicator relay as well.

 

The grease issue happened on the heater fan switch as well.

Cleaning and adding new grease solved the problem there.

 

Cheers,

Hans

 

Van: Mgs [mailto:mgs-bounces at autox.team.net] Namens PaulHunt73 via Mgs
Verzonden: zondag 18 oktober 2015 10:29
Aan: dave willner; mgs at autox.team.net
Onderwerp: Re: [Mgs] Hazard flasher question

 

Flasher?  W1, C1 and C2 are the terminals on a particular Lucas relay used as the electric fan relay for the GT V8, for example, but were used for other things on a number of other British makes and marques.  They are rectangular.

 

Are you sure the flasher unit (strictly speaking it's not a relay) goes behind the console?  It did on some cars, but on others it was behind the dash pushed into a clip screwed to the bulkhead.  2-pin are rectangular but smaller than the relays, 3-pin may be cylindrical and quite a bit larger.  I'm not aware of a relay inside the cabin on any MGB, maybe someone in the past went to replace the flasher unit but asked for a relay instead.

 

The wire colours should be brown to the X terminal on the flasher unit, light-green/brown to L to light the lamps at the corners of the car via the hazard switch, and light-green/purple on P for the tell-tale on the console.  Also the brown comes via an in-line fuse (brown both sides) which should be near the flasher unit and is shown as connecting directly to it, no bullet connector on the flasher unit side although there is a 2-way connector on the supply side.

 

Problems with some lights flashing and some not, and the indicators not working, are usually down to the hazard switch itself.  On most cars it is very rarely used and the grease hardens over time to become an insulator rather than a lubricant.  Sometimes flipping the switch back and fore a few times will get it going again, but I've had to dismantle the switch, clean out the old grease and use fresh before it worked consistently

 

PaulH.

----- Original Message ----- 

 

Doing some minor things this morning, needed to fix the Hazards and went to replace the hazards flasher. 



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