Click here to return to the home page.
Image of a road.
Who's Online
8 registered (westgardronning, Osama, RedThree, John V6, SER, Anthony4/4, Peter J, OZ 4/4), 94 Guests and 13 Spiders online.
Key: Admin, Global Mod, Mod
Latest Photos
A long way from home
Villa appalacia Winery
Chiltern Hills Vintgae Car Rally 19.5.19
Cape to Cape Rally -  Arrival in Falmouth.
When Things Go Wrong
Newest Topics
Half hood for a 4/4
by Phil.C
21/05/19 11:07 AM
Niki Lauda (1949-2019)
by MarioCP
21/05/19 04:15 AM
Brooklands Exhaust Endgame?
by IMHO
20/05/19 08:46 PM
Removing dash to fit instrument surround
by pete757
20/05/19 02:05 PM
4 seater rear
by TBM
20/05/19 01:51 PM
Some light reading...
by OZ 4/4
20/05/19 10:06 AM
car lift and clearance
by Grumpy2
20/05/19 10:00 AM
Newest Members
Melissa4/4, Illia Pasko, Jazzman, Nico_M3W, mudeford gg
6502 Registered Users
Shout Box

Forum Stats
6,502 Registered Members
33 Forums
35,085 Topics
566,478 Posts

Most users ever online: 341 @ 11/02/18 10:30 PM
Today's Birthdays
123456, JoeIreland4/4
Page 1 of 3 1 2 3 >
Topic Options
#558843 - 09/02/19 04:41 PM Main Fuse
IcePack Offline

Learner Plates Off!

Registered: 17/07/11
Posts: 436
Interesting article in MOG magazine this month re main fuse corrosion & failure.
I did not know there was one as have never seen it, despite changing the battery fairly recently. In terms of servicing & preventative measures, what would my learned friends recommend to prevent/arrest any corrosion. My first thought is WD40, but I know long term it can actually attract moisture. Not sure of using ACF50 on an electrical component either.
Thanks
_________________________
4/4 Ivory 4.1:1 axle, Jaguar XE R-Sport.

Top
#558856 - 09/02/19 05:21 PM Re: Main Fuse [Re: IcePack]
+8Rich Offline

Member of the Inner Circle

Registered: 15/12/09
Posts: 19674
Loc: Devonshire
I use Dow Corning MS4 grease as I have some left over from a previous occupation but this stuff is half the price with the same electrical properties. It also has the side effect of making the fuses easier to pull and replace.

silicon grease

In a similar preventative vein if you have the new type electronic pcb behind your dash it's well worth giving it a good coating of this conformal coating to prevent an expensive happening when the water finds it's way in there. conformal coating

This prevented a disaster when the licquorice tubing washer pipes fell off soaking it all on my 4/4 Sport.
_________________________
Richard
1999 Indigo +8






Top
#558861 - 09/02/19 05:38 PM Re: Main Fuse [Re: IcePack]
andymot Offline

Talk Morgan Regular

Registered: 11/09/14
Posts: 755
Loc: East Sussex, ENGLAND
ACF50 is fine for electrics and is just what I'm going to use on the said fuse - after reading the Mog article.

I have used it on fuseboxes ( cars - not domestic!) and even PCBs on old Rover sat-nav units where water ingress is possible/likely.
_________________________
2015 Morgan 4/4 (Wolf tuned engine, steering and suspension)
Mazda MX5+some preserved BL relics.


Top
#558871 - 09/02/19 06:22 PM Re: Main Fuse [Re: IcePack]
Burgundymog Offline

Talk Morgan Addict

Registered: 11/05/14
Posts: 3495
Loc: Essex
Originally Posted By IcePack
Interesting article in MOG magazine this month re main fuse corrosion & failure.
I did not know there was one as have never seen it, despite changing the battery fairly recently. In terms of servicing & preventative measures, what would my learned friends recommend to prevent/arrest any corrosion. My first thought is WD40, but I know long term it can actually attract moisture. Not sure of using ACF50 on an electrical component either.
Thanks


You should speak to Cain who had a catastrophic failure of this nature on the Wolf Cafe Racer on an unlit stretch of the A14 at night.
_________________________
Keith
2013 narrow bodied + 4 Ruby. Wolf performance Re-map suspension mods and K&N cone filter.

Top
#558905 - 09/02/19 08:59 PM Re: Main Fuse [Re: IcePack]
Gambalunga Offline

Member of the Inner Circle

Registered: 03/09/11
Posts: 11246
Loc: Mandello del Lario, Lake Como,...
Which fuse is this and where is it located?

Photo?
_________________________
Peter


Top
#558917 - 09/02/19 10:30 PM Re: Main Fuse [Re: Gambalunga]
Richard Wood Online   NoMood
Talk Morgan Enthusiast

Registered: 03/02/16
Posts: 1669
Loc: East Harling, Norfolk UK
Originally Posted By Gambalunga
Which fuse is this and where is it located?

Photo?

On the latest +4 and Roadster (maybe 4/4) there are two approx 35mm2 red cables from battery positive terminal. One feeds stater motor directly and the other the common positive battery stud at front of car via an 80 amp maxi fuse in holder located close to battery. These two cables follow a similar path to the front, secured internally to wood frame underneath right hand door.

On mine the fuse is clearly visible when the battery access plate is removed.


Edited by Richard Wood (09/02/19 10:48 PM)
_________________________
Richard

2018 Roadster - Red/Magnolia - "Morton"
1967 Land Rover series 2a SWB
1960 Velocette Venom

Top
#558926 - 09/02/19 11:15 PM Re: Main Fuse [Re: IcePack]
IcePack Offline

Learner Plates Off!

Registered: 17/07/11
Posts: 436
+8Rich thanks for those links. Andy thanks for info on acf50.
I still have to find my fuse it seems well hidden. I will be lifting the tool tray next week & will have a look then.
_________________________
4/4 Ivory 4.1:1 axle, Jaguar XE R-Sport.

Top
#558930 - 10/02/19 12:03 AM Re: Main Fuse [Re: IcePack]
Gambalunga Offline

Member of the Inner Circle

Registered: 03/09/11
Posts: 11246
Loc: Mandello del Lario, Lake Como,...
Thanks. I too will check it out in due course.
_________________________
Peter


Top
#558940 - 10/02/19 08:24 AM Re: Main Fuse [Re: +8Rich]
MOG 615 Offline

Has a lot to Say!

Registered: 24/09/14
Posts: 1374
Loc: London
Originally Posted By +8Rich
I use Dow Corning MS4 grease as I have some left over from a previous occupation but this stuff is half the price with the same electrical properties. It also has the side effect of making the fuses easier to pull and replace.

silicon grease

In a similar preventative vein if you have the new type electronic pcb behind your dash it's well worth giving it a good coating of this conformal coating to prevent an expensive happening when the water finds it's way in there. conformal coating


Rich

Conformal coatings are a great idea providing that you are sure that the substrate is 100% clean. I used to work in the chemical cleaning industry and we sold far more chemicals to help people try to remove conformal coatings because they had trapped water or dirt behind them than we did cleaning fluid to clean the PCB in the first place. Because the coating is designed to stick , it is the very devil to remove entirely and most of the components ended up being used for spares only.

The other issue is that once applied any maintenance of the electronics is impossible, so dry joints etc became an issue.
_________________________
Andy G
1999 +8 , Indigo Blue.
Ex-John McKecknie/Mike Duncan 1955 +4 racer.

Top
#558969 - 10/02/19 10:11 AM Re: Main Fuse [Re: IcePack]
smudger1 Offline
L - Learner Plates On

Registered: 20/05/09
Posts: 171
Loc: Durham, UK
Just a word of caution. WD40 has excellent insulating properties ( which is why people spray HT leads to stop electrical tracking in wet weather). If you get this on an electrical contact i.e. Fuse and Fuse Holder there is every chance you will eventually end up with a high resistance.

There is a copper rich grease available ( not coppaslip) which is specifically designs to preserve / prevent water ingress which is used in the marine environment but my old brain has ran out out of memory but I'm sure one of you can find it online.
_________________________
1999 Morgan Plus 8. 3.9 ....
1961 Alvis TD21 Series1 3 Litre Auto....

Top
Page 1 of 3 1 2 3 >

Moderator:  Aeroman, Boshly, Simon