RTV on impellar housing?

[jamminmaz]

I have a 72 Johnson 100hp (100esl72r) and i got the Seloc manual. it doesnt look like there is a gasket where the impellar housing meets with the impellar plate? When i do this service, would you recommend puting a small bead of RTV around the base of the housing?<br /><br />Thank you

 

[walleyehed]

Re: RTV on impellar housing?

the impellor housing has a small molded o-ring for a seal. I still use a very thin bead of OMC type-M or 3M #847.

 

[rodbolt]

Re: RTV on impellar housing?

does the manual call for RTV. I rather doubt it. if any sealer maybe a thin bead of adhisive M or sealer 1000. take the RTV in your throwing hand. walk to your fence. launch said RTV with all your might. thats good excersise and about the best thing I can say for RTV and outboards <br />but mostly we just surfaced the housing and put them on if they had no oring do use a straiht edge and a feeler gauge to check the housing for warpage. another reason I never reuse them. if warped more than about.004" surface it if more it may be replacement time.

 

[jamminmaz]

Re: RTV on impellar housing?

Gotchya. That Sealock manual is ummmm....old??<br />dont want to offend anyone, but the OEM woulda been worth the extra coin.<br /><br />thanks for your replies!