'Core plug' on base of engine?

[mspenz]

It's located just behind the oil filter and looks like some sort of brass coloured core plug but I can't see it in the manual. What is it?

I've noticed that the area around mine is damp with oil and it's been like like since I got the bike about 8k miles ago, is it something to worry about & deal with or do they all do that (hopefully the latter ).

Cheers.

 

[Cook1e]

Can't see anything like that on the diagrams: LINKY

I'll try and remember to have a look next time I go in the garage

 

[mspenz]

I've looked through my Clymer manual and also the BMW Motorad repair manual (albeit for an 1100gs) and can't see anything that mentions it

Gave it a proper clean and degrease tonight so I'll keep an eye on it and see what happens, definitely looks like a core type plug and sealed in with resin of some sort. I'm hoping to get away for a few hundred miles over this coming May Day long weekend so if there's anything going to leak it should show up.

On a plus side, thought that I'd drain any excess oil blown back into the airbox tonight but only managed 4 drops after a minute or so waiting

Thank's for taking the time Cook1e.

Mike.

 

[Ian J Hartley]

Mine doesn't leak and I'm pretty certain it is not a common occurrence. I didn't want to remove my sump plate to have a detailed inspection, so a mirror was as good as I could get. Dirty but not wet.

The other side of the core plug is your sump. The thing you well have to decide is "is it leaking enough fluid to cause a concern" I probably think not, and "how difficult will it be to pull the core plug and replace it"

If it was me I would just keep an eye on it an monitor it to see if the leak increases. You would have to be really unlucky for a core plug to fall out, especially as there is no pressure behind the plug to force it out.

This is not much help, I know.

Ultimately it's your call.

Ian

 

[mspenz]

Mine doesn't leak and I'm pretty certain it is not a common occurrence. I didn't want to remove my sump plate to have a detailed inspection, so a mirror was as good as I could get. Dirty but not wet.

The other side of the core plug is your sump. The thing you well have to decide is "is it leaking enough fluid to cause a concern" I probably think not, and "how difficult will it be to pull the core plug and replace it"

If it was me I would just keep an eye on it an monitor it to see if the leak increases. You would have to be really unlucky for a core plug to fall out, especially as there is no pressure behind the plug to force it out.

This is not much help, I know.

Ultimately it's your call.


Ian

It's only damp around the plug and also on a few fins behind but I would imagine that it has been like that since I got the bike and probably for some time before as well.
Tonight was the first time that I have used a degreaser on the underside and removed most of the old baked on grime so it will be easy to keep an eye on things now but as you say, it's unlikely to come out so I've decided not to get bothered about it

What the hell's it for though...

Cheers,
Mike.

 

[Cook1e]

it's unlikely to come out so I've decided not to get bothered about it

Good decision - a little oil weep won't hurt. If it gets much worse, take it out at next oil change, measure and replace it.

http://www.coreplugs.co.uk/

Seal the new one with Loctite 540 or similar.

What the hell's it for though...

Mike.

Like all core plugs/oil gallery plugs, it is used to close a hole that was necessary to allow machining of an internal channel in the block.

 

[mspenz]

Good decision - a little oil weep won't hurt. If it gets much worse, take it out at next oil change, measure and replace it.

http://www.coreplugs.co.uk/

Seal the new one with Loctite 540 or similar.



Like all core plugs/oil gallery plugs, it is used to close a hole that was necessary to allow machining of an internal channel in the block.

Thanks for the advice and link...I'm happy

Cheers,

Mike.