The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
It is currently Thu Jan 17, 2019 12:32 pm

All times are UTC




Post new topic  Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Sun Dec 09, 2018 3:46 pm 
Offline
TDC Member

Joined: Sun Mar 16, 2008 2:52 pm
Posts: 1980
I've been blowing fuses recently. Specifically the fuse protecting the unswitched, always live, feed from the fuse box. Normally this would disable all the items that are fed from the lower 35A fuse, but some time ago I fitted the 4-fuse MGB unit and split the wiring so only half my IGN OFF electrics disappeared.
Namely the clock, the hazards, and the ciggy lighter socket. And it seemed to be completely random. So as an aid to diagnosis I swapped the 30A fuse for a series of 10A units. I did note that plugging in an accessory to the socket would kill the fuse, but so did going over a bump. Luckilly each time it happened the clock would stop to I had a sort of time stamp of events. So it looked like the problem was in the area of the dashboard. I had the heater vent off and all the wiring at the back looked good. The loom looked good so I tracked it back to the rear of the clock.
To do this you have to take the glove box out ( 2 screws on the hinge plate, 2 screws at the lower edge of the box and 2 screws holding the chrome catch on. Ah-Ha ! the bracket at the back of the clock was loose !

Now if this bracket is not fitted in the "10 past 8 " position with the riveted-on spike going through the rear bracket it can move round and short the live 12V supply. I did note that the clock was a replacement as it was date-coded 1982 !
So a fault that has taken around 30 years to show itself.

Sorry there are no photos, it was getting late when I finished.


Top
   
PostPosted: Tue Dec 11, 2018 11:48 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!
User avatar

Joined: Mon Jun 03, 2013 4:48 pm
Posts: 1275
I did notice similar when putting a dash back together but thought is was just a dodgy connection on the one I had.

_________________
Some people are like Slinky's, they serve no real purpose in life but bring a smile to your face when you push them down the stairs.


Top
   
PostPosted: Thu Dec 13, 2018 7:06 am 
Offline
TDC Member
User avatar

Joined: Sat Apr 12, 2014 10:02 pm
Posts: 2160
Location: Nr Kenilworth
Good find Tony :thumbsup:

Tony

_________________
Membership 2014047


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 3 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited