Loctite 518

[harleytoprock]

I just put a set of cases together and I used the loctite 518 sealer for the first time. My bead was a little generous and I have goo squeezed out. Will the extra exposed  set up like silicone or does it stay gooey? Is there  a solvent that I can use to clean up the extra? I don't want to use lacquer thinner as the cases are rattle can painted. If the stuff squeezed out, then it squeezed in also. Am I in trouble?

[NCTURBOS]

518-anaerobic sealer will remain "gooey".  We use it all the time here at the Caddy dealership on the Northstar engines, and it works well on them.  My personal preference for sealant is "The Right Stuff".


K.

[Tattoo]

  My personal preference for sealant is "The Right Stuff".

I use that stuff myself...

[q1svt]

If 518-anaerobic sealer will remain "gooey" and he used enough that it squeezed out on the outside... what about the sealer within the case?  problems with oil breaking it down and pumping it through the motor? Should the cases be broken down cleaned and reassembled?

[harleytoprock]

If 518-anaerobic sealer will remain "gooey" and he used enough that it squeezed out on the outside... what about the sealer within the case?  problems with oil breaking it down and pumping it through the motor? Should the cases be broken down cleaned and reassembled?

Yes, thats my big concern and I freaking out a little right now. I can clean in the crank case where I can see but there are areas, since its a "B" motor that I can't get to. If the goo is covered with oil ( no oxygen), will that cause the stuff to cure and set?

[rel3rd]

I have used it for several years to seal the cases of industrial drive units that I rebuild. In my experience it stays "soft" even when oil is splashed onto it. The only place it ever is setup is in between the two mating parts it was applied to.

[NCTURBOS]

If 518-anaerobic sealer will remain "gooey" and he used enough that it squeezed out on the outside... what about the sealer within the case?  problems with oil breaking it down and pumping it through the motor? Should the cases be broken down cleaned and reassembled?

Like rel3rd said it stays more "soft" than "gooey", so I retract that...  We've never had issues with it breaking down from the oil and pumping through the Northstars.  I also use it to seal the rear main cap registers on the Buick turbo V6's with great success.

I know that none of ^this^ relates to our v-twins, but I don't have the experience there.  If it's really excessively goop'd on there maybe be concerned... 


K.

[Rider57]

No worries there harley! It will be ok. I did the exact same "put together" is did. I now have aver 30K on the engine and the ooze! No problems.

[rbabos]

Great stuff but it's deceiving how little you need on the case halves to prevent excess squeeze out. You'll do better next time. I've used 518 on plenty of different engine types including aircraft engines. Never had a problem with it. If the squeeze out is extreme inside where the crank sits I would swab it out with a rag and WD40. It works awesome for removing this uncured product and won't harm the finish on the outside either.. What's left inside will likely never go anywhere unless you got a 2" stalagtite hanging in there. The amount of sqeeze inside will be what you see on the outside, so go from that as a reference.
Ron

[harleytoprock]

Thanks guy, Just to play it safe, I split the cases and cleaned it all up. I just wasn't comfortable knowing that there was that much  goo uncured inside.

[rbabos]

Thanks guy, Just to play it safe, I split the cases and cleaned it all up. I just wasn't comfortable knowing that there was that much  goo uncured inside.

Figured you couldn't leave it alone. Good for you. How bad was it?
Ron

[harleytoprock]

Well, I thought about it for two hours before I decided to go back in. Hell, its only 12 bolts. I'm glad I did as it was pretty messy. I don't think that stuff would be a good assembly lube.

[barny7655]

Ive used it for yrs it comes to out dealership from KIA to put all parts together for there engines, quite dear but does a awsome job, i have several tubes at work and use it at home as well , once a tube is open try to use it in a reasonable time ,i use it sparingly as you only have to put a bead on, as long as all mating surfaces are cleaned with cleaner and for gods sake let it cure, but for HD proberly okay as it would be a long time before oil is in the motor ,due to the rebuild time ,but cars let it sit over night,for sumps etc , good stuff for sure , not saying there isnt a good sealant out there as a equal, cheers a good post to inform us to the right stuff to use  on such a critical area, cheers Barny

[Overcamber]

glad to hear its good stuff incase i need an answer in the future