Anybody know the dimensions of the copper washer on the drain plug of the gear and transfer boxes?

[Frenchy]

[ScottieJ]

There isn’t always a copper washer.

Depending on the year it might be a tapered thread plug so it would be worth checking before ordering anything.

If it does have a copper washer (original was aluminium) I think they are 20.1x27mm

Tbh I rarely change them unless they actually start leaking…but that’s pretty rare

[Frenchy]

Never a sign of one,but recently had the oil changed in both and now slight weeping of oil from the gearbox. I'm getting a new clutch on Tuesday so thought it might be worth getting them fitted as it's an MOT fail here in Spain.

[Frenchy]

There isn’t always a copper washer.

Depending on the year it might be a tapered thread plug so it would be worth checking before ordering anything.

If it does have a copper washer (original was aluminium) I think they are 20.1x27mm

Tbh I rarely change them unless they actually start leaking…but that’s pretty rare

Thanks Scottie doubt I'll find any. Tried the local Suzuki dealer yesterday but nothing. To stop the weeping would a couple of turns of PTFE on the threads work,or will the oil break it down?

[ScottieJ]

I might have stated the wrong with size (don’t believe everything you find on the internet) anyway but yeah ptfe tape will work. The tapered style plugs without a flange have ptfe on to seal.

Part numbers here