My primary drain plug is leaking. I tighten it to specs but now it leaks. I don't see anything wrong with the plug. Has anyone ever put thread sealer on it ? Does anyone have any ideas. Thanks

 

All tapered plugs need sealant to work 100% if that 's what you have. Without it you end up tightening more and more until you screw things up and crack the casting around the hole , where as with a good sealant snug is all you need. Q tip the inside threads with thinner and the plug prior to sealant use. I like the Loctite white paste with teflon. I believe it # 565. It will actually slightly lock the plug in place as a bonus too.
Ron

 

+1 also check the o-ring on the plug.

 

Thanks I'll try the loctite white paste but I did'nt see a o-ring on the plug maybe I lost it I'll stop by HD tommarow and get one. Thanks again

 

There isn't an o-ring on the primary drain plug

 

I use teflon tape. I take a small strip, and fold it in half lenght wise... so it doesn't go up into the primary area.
I know people say not to do this cuz it will go inside, but it seems to work OK for me... I'm comfortable with it since I am thinning down the strip

 

Am pretty sure there is on the drain plug, its a bugger to fill though.

 

Late models use an o ring with straight thread. Earlier ones used a pipe thread (tapered) and there's no provision for an o ring on these as they seal through thread compression.
Ron

 

Use white teflon and it should be fine. If still leaking it may have a hairline crack.

 

The tech on Expert Village says to change the plug when you change the primary fluid. I didn't, but if it started to leak I would.
http://www.expertvillage.com/video/1...rimary-one.htm

Tom