Oil Pressure Switch - Should I Use Sealant?

[pete]

Ok I need to put my oil pressure switch back in, but the Clymer doesn't cover this particular step after searching through it a few times, and I certainly can't find anyone else who's done this on the forum on a 450.

It looks like the bigger bike's switch is in the sump and has an O ring, but on the 450 it's inside the signal generator cover in the right hand case cover.

This is the best photo I have:



As you can see, it appears there is some sealant there from the factory.

Anyone know if I can just use the threebond I used on the crankcases for this and if I should loctite it or anything?

[Nessism]

Three Bond sealer will do it Pete, or teflon tape. Can't wait til you get that bike of yours together.

[pete]

Cheers Ed, me neither!

I just resorted to the Haynes and it doesn't say sealant, it says thread locker.

Me thinks I'm going the sealant route because that white stuff don't look like any thread locker I've seen.

[pete]

Actually, on second thoughts, I'm gonna be doubly safe...

A dab of sealant at the lip of the thread and thread locker as well should make it nice and safe and oil tight to boot.

The torque spec is quite low, so better to be safe than sorry me thinks.

[Suzuki_Don]

Ok I need to put my oil pressure switch back in, as you can see, it appears there is some sealant there from the factory.

Anyone know if I can just use the threebond I used on the crankcases for this and if I should loctite it or anything?

Pete, just follow these instructions from the Factory Suzuki Manual and all will be OK.






.

[koolaid_kid]

My translation of the factory manual is to use the ThreeBond. I would absolutely not use both; don't be mixin' yur chemicals. The next thing you know, you'll be saying "Hold my beer, bubba, an' watch this!"
But seriously, the gasket sealer will act as a low-level thread locker, which should be all you need.

[pete]

Pete, just follow these instructions from the Factory Suzuki Manual and all will be OK.

Cheers again Don! Is that your 550 manual? You're a real wealth of information aren't you?

My translation of the factory manual is to use the ThreeBond. I would absolutely not use both; don't be mixin' yur chemicals. The next thing you know, you'll be saying "Hold my beer, bubba, an' watch this!"
But seriously, the gasket sealer will act as a low-level thread locker, which should be all you need.

Got ya... treat chemicals like spirits... don't mix 'em (except in delicious cocktails).

So, I shall stick with some sealant only, thanks again guys!

[Suzuki_Don]

Cheers again Don! Is that your 550 manual? You're a real wealth of information aren't you?

So, I shall stick with some sealant only, thanks again guys!

Pete, that page is from the GS650G manual, but has the same setup as yours. These motors with shell mains and big ends have a high pressure oiling system and have a different oil pressure switch than the low pressure roller bearing cranks of the other motors which had the oil pressure switch positioned behind the cylinders, under the carbs.

Just use the sealant that you used between the case halves. That oil switch is never going to undo once it is tightened up. It has a very fine thread. Or you could use STAG if you have any lying around.

[pete]

Aaaah I get ya Don! That makes sense and explains why there's a lot of differences between the 400's and 450's too as the 400's are roller bearing.

I'm not sure what STAG is so I'm guessing I don't have any... will stick with my threebond

[Suzuki_Don]

Aaaah I get ya Don! That makes sense and explains why there's a lot of differences between the 400's and 450's too as the 400's are roller bearing.

I'm not sure what STAG is so I'm guessing I don't have any... will stick with my threebond

Good choice, it won't let you down.