Will a magnetic drain plug fit in filling plug hole

[daverclasper]

Hi folks

 

As I have tunnel off at the mo, and won't be draining oil for a while, I was wondering if my new magnetic drain plug (magnet sticks out about 8mm from plug end) would interfere with gearbox workings If I fit to filling hole.

 

Cheers, Dave 

[DerekS]

Dave, the magnetic plug should be fitted in place of the drain plug. Can I point out that you have a golden opportunity to measure up and install an access plate in the tunnel for the filler plug? A small amount of extra work now will save a load of grief in the future!

[Guest]

Dave.

 

If you are intending to fit the magnetic plug, I would personally drain the old oil - even if it has limited mileage. This gives the magnetic plug a fresh oil base to start doing its work. Needless to say when that drain plug is out you can then measure the gap between the plug end & the g/box internals. 

 

I think you will find there is plenty of space; but like you I would still want to check for my own peace of mind !!

 

Out of interest where did you purchase the item ??

 

Good tip re the g/box tunnel modification - well worth doing. The hole can be plugged with one of those large Herald floor grommets.

 

Good luck.

 

Richard

[daverclasper]

Thanks a lot for replying.

 

Had mine from Canley's. About £7.00 I think.

 

Cheers Dave

[Guest]

Dave.

 

If you got it from Canleys there will be no problem, so fitting can be done without measuring.

 

Regards.

 

Richard.

[daverclasper]

Hi and thanks

 

It's normally fitted in the drain hole, not the filler one, which is what i want to do for now.

 

Cheers, Dave

[Simon]

I would say its only going to be effective at the bottom in the drain hole as the particles will sink to the bottom. The oil at standstill will only be touching the edge of the plug and not the magnet, only when drving will it slosh over it but out doubt it will catch anything. If your quick you can swap the plug over without loosing a lot of oil and just top it back up, but if it hasn't been changed in a while then I would just drain it.

[daverclasper]

Hi.

 

Just going off someone on Club Triumph forum, who rebuilds diffs and uses magnets on both plugs. He says, surprisingly that the filler plug collects more. So thought it might be same for gearbox.

 

Cheers, Dave

[Pete Lewis]

There is generally no drain plug on most triumph diffs so on a diff.filler its the only place

 

there is so much splash it doesnt matter where its fitted when running but when static debris tends to sink

[GT6M]

Both plugs mangets on em,

filler plug always collects moer sheite than sump one

 

Plenty of room, 

 

M

[Colin Lindsay]

There is generally no drain plug on most triumph diffs 

 

 

 

 

... but if you ever get a case with one drilled... keep it!! Very very handy for draining old oil and grunge which has probably built up over forty years or so.

[JohnD]

And if you ever get a diff case without a drain hole, off the car, get it drilled and tapped.

Can't recall the correct, or rather the plug, thread, but it's a BNP (British National Pipe) thread, not yer usual. Thread is coarse, and the conical plug achieves a seal by interference - it gets so tight it can't leak.

 

John, in Rio

[rlubikey]

The workshop manual calls it NP Thread. I think you'll find that's National Pipe Thread - which is the American standard for their plumbing. (We, and much of the rest of the world use British Standard Pipe)

 

Cheers, Richard