Jump to content


Photo
- - - - -

Blowing Indicator Fuses


Best Answer cal844 , 21 July 2020 - 09:21 AM

Check the wiring at the reverse light switch isn't burnt through to the exhaust Go to the full post


  • Please log in to reply
9 replies to this topic

#1 Mark506

Mark506

    Passed Test

  • Noobies
  • PipPip
  • 29 posts
  • Location: Reading

Posted 20 July 2020 - 09:38 PM

Recently got my 1988 mini back on the road, one of the few things that I haven't touched is the wiring to any real degree. It keeps blowing the no.1 indicator fuse (didn't do this before), it doesn't blow straight away but after maybe 50 miles running it'll blow. 

 

Any suggestions as to common faults which might be causing this or good starting points to look at?



#2 cal844

cal844

    Crazy About Mini's

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 7,672 posts
  • Location: Ballingry, Fife
  • Local Club: TFMOC

Posted 21 July 2020 - 09:21 AM   Best Answer

Check the wiring at the reverse light switch isn't burnt through to the exhaust

#3 Ethel

Ethel

    ..is NOT a girl!

  • TMF Team
  • PipPipPipPipPipPipPipPipPipPipPip
  • 23,480 posts
  • Local Club: none

Posted 21 July 2020 - 10:07 AM

Most likely a short somewhere. Have you been working on or near the indicators?

 

Where the wiring passes through the inner wing and the front bulb holders are top candidates.



#4 Mark506

Mark506

    Passed Test

  • Noobies
  • PipPip
  • 29 posts
  • Location: Reading

Posted 21 July 2020 - 08:23 PM

Just had a look and the wiring to the reversing switch has definitely moved so could be that on the exhaust, although can’t feel any burnt sections. Will drop the exhaust down and have a better look tomorrow.

Will hate the indicators in mind too

Edited by Mark506, 21 July 2020 - 08:24 PM.


#5 cal844

cal844

    Crazy About Mini's

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 7,672 posts
  • Location: Ballingry, Fife
  • Local Club: TFMOC

Posted 21 July 2020 - 08:29 PM

Just disconnect the switch at the floor and pull it into the interior of the car, run the car to see if this is the issue.

#6 Mark506

Mark506

    Passed Test

  • Noobies
  • PipPip
  • 29 posts
  • Location: Reading

Posted 21 July 2020 - 08:31 PM

Makes sense! Although the issue doesn’t happen straight away after starting, takes a while to blow

#7 cal844

cal844

    Crazy About Mini's

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 7,672 posts
  • Location: Ballingry, Fife
  • Local Club: TFMOC

Posted 21 July 2020 - 08:48 PM

Makes sense! Although the issue doesn’t happen straight away after starting, takes a while to blow


Drive the car, go to an area you know the fault occurs and see if you can replicate the fault.

I had an issue on my 1993 sprite where the top fuse would blow so I had no indicators, side lights, heater or reverse lights. Took us weeks to find it, I'd eventually went back to basics and disconnected the reverse light wiring and tucked it up under the carpet... Problem solved as it had burnt the insulation on the live wire near the switch.

Edited by cal844, 21 July 2020 - 08:48 PM.


#8 MiniBGT

MiniBGT

    Stage One Kit Fitted

  • Noobies
  • PipPipPip
  • 78 posts
  • Location: Berkshire

Posted 22 July 2020 - 07:04 AM

I had the same problem on our MGB and eventually found that the brake light switch in the hydraulic line was shorting out, a common problem it seems.



#9 sonscar

sonscar

    Speeding Along Now

  • Members
  • PipPipPipPipPip
  • 430 posts
  • Location: crowle
  • Local Club: none

Posted 22 July 2020 - 08:29 AM

If the reverse switch wiring has meltedI would check it all the way up the bulkhead to the main loom.Mine was crispy all the way up to the junction in the loom.Steve..

#10 Mark506

Mark506

    Passed Test

  • Noobies
  • PipPip
  • 29 posts
  • Location: Reading

Posted 26 July 2020 - 08:50 PM

Seem to hit the nail on the head with the reversing light (I think), very slightly burnt through the heat shrink on the plug connector that's fitted. Thanks guys






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

Mini Spares