What to use to seal case halves?

[tinkerman]

OK fellows,

I am getting ready to put the case halves of my 88 evo back together after cleaning everything out. Found a few crumbs of the bearing in there so it was worth doing for sure.

I would like some sugestions on what sealant to use between the case halves. I have some permatex gasket dressing here in the shop...one that sets hard and one that sets flexible. I tend to think the flexible one would be better but don't want to make any assumptions. My inexperience with the Harley thing is what got the cases up on the bench in the first place. (still kicking myself in the ass on this one)

Thanks fellows,

Tinkerman

[rigidthumper]

I get  HD 99650-02, Harley high-performance sealant, grey: commonly  called Yamabond or Hondabond.
HTH
Robin

[ricochet]

Yup.  I use Yamabond.  The light grey stuff.  Believe 3M makes a white product others have mentioned.

ricochet

[lasmittys1]

 I like clear silicon, but I also like to wipe it off the outside of the case when their together and see nothing. What ever you choose clean the case mating
surface thoroughly. H-D likes to coat the bolts as they install them.

[tinkerman]

Thanks Fellows,

I have a tube of grey permatex stuff here as well which specifies it is made for mating crank case halves. Will use that based on the types of sealants you folks are using it should be good to go. Gonna give it one more flush before I sew it up just for good measure.

Thanks

Tinkerman

[Reddog74usa]

Yama bond  you can get it at your local Yamaha dealer. Works great and has been around a long time.

[Crotch_Rockets_Suck]

+1 on the Yamabond.  Although they did look at me a little strange when I walked in wearing a Harley T-shirt.

[Don D]

Loctite 574 is superior to the OEM HD product

[Norton Commando]

Yup, Yamabond for me, too.

[tinkerman]

Right on,

Thanks very much for all the feedback. Have the cases all back together and getting the parts organised for the top end rebuild. Gonna have to send my heads away for some work. Pulled the valves out of them today and the exhaust valves are a little shakey in the guides.

Already spoke to a machine shop who has worked on my Nortons years ago so likley will get them to install new guides, seat the valves and hone the cylinders for me. I will have it all back in a couple of weeks along with a few gaskets I am short. Should be able to clue up the top end and make it look like a bike again.

Thanks again for the replies,

Tink