Charging Circuit Fuse

http://www.ukmgparts.com
Ask the Gurus - Use this board to discuss problems or technical issues you have with your MGF/TF - there's always an expert around to help you!

Moderator: Committee Members

Forum rules
Not many rules really, this board being aimed at technical issues, it shouldn't fall foul (hopefully) of some of the more personal issues that can affect forums.

Rule 1 - Is that you need to think very carefully before posting anything technical or asking anything technical relating to the security system of the car - See 'Security Issues' sticky for more info.

Rule 2 - We (MGF Register) do not support copyright infringement and therefore references to CD ROM, PDF versions or paper copies of the workshop manual (for instance) should not be posted on the forum. We don't want to get into trouble and we'd rather sell you a genuine hard copy through our Regalia shop anyway! :)

Because advice is honestly and freely given in this technical section, much of it will be amateur experienced based, so any information is given in good faith and is not guaranteed as correct.
Post Reply
User avatar
p3ahe
Posts: 47
Joined: Sun Sep 11, 2011 3:03 pm
MGF Register Region: South Wales
Model of Car: MG TF115
Location: Tonypandy

Charging Circuit Fuse

Post by p3ahe » Sat Jan 06, 2018 9:34 pm

Large charging circuit fuse blew this morning, not determined why yet. The fuse was 60 amp but looking for a replacement on line , they appear to be 80 amp. Please confirm correct size and reasons why it would blow. MG TF MY2005.

Thanks , Andrew.
MG ZT 1.8 Turbo

User avatar
mgtfnut
Posts: 787
Joined: Mon Oct 08, 2007 2:22 pm
MGF Register Region: South Wales
Model of Car: TF 135
Location: Dinas Powys

Re: Charging Circuit Fuse

Post by mgtfnut » Tue Jan 09, 2018 12:39 pm

Hi Andrew - HNY.

I thought the experts would have piled in by now :roll: :lol: , but I can only offer a few crumbs of advice.

My 02 TF has an 80 amp fuse, and an 85 amp alternator. The fuse is in the line going to the starter motor terminal, and then onto the battery. The fuse is on the engine side of the boot/ engine compartment bulkhead at the top as you know.
I assume your TF will be the same.

I can only guess the alternator has gone, mine went last year. While you're at it, check the earthing straps between the block and body for corrosion - in fact all the connections, battery etc.

Good luck - give me a ring if you want to.

Jerry.
Jerry
MG TF 135 - 100k
Suzuki SJ 413 - 309k
Skoda Yeti SE 110 4x4 - 131k

User avatar
p3ahe
Posts: 47
Joined: Sun Sep 11, 2011 3:03 pm
MGF Register Region: South Wales
Model of Car: MG TF115
Location: Tonypandy

Re: Charging Circuit Fuse

Post by p3ahe » Tue Jan 09, 2018 12:57 pm

Hi Jerry , thanks for your response. I fitted a new alternator in March 2017 & fortunately it had a 12 months warranty , so will be fitting a new one today. Also fitting a new 80 amp fuse instead of the 60 amp. All connections and earthing straps etc. seem fine. Never had a moments problem with electrics until the original alternator failed last year. Fingers crossed new alternator will last longer than 10 months but at least I have a further 12 months warranty. Hope you are keeping well and we can catch up when the weather breaks.

Andrew
MG ZT 1.8 Turbo

Post Reply