39a hammer screw loosening?

[1894cfan]

Got a problem with my '48 39a, the hammer screw keeps loosening up while shooting long strings, usually 100 or more rounds when I have to take it down to tighten the screw up again. Have tried blue lock-tite and even hammer-and-screwdriver to tighten it up.
Anyone here have any suggestions? TIA

[jeepnik]

Blue locktite should work unless you didn't get all of the oil off the parts. Clean with an appropriate solvent and try the blue locktite again.

[marlinman93]

Yes, clean it well with spray brake cleaner to ensure it's oil free. Then after the Loctite dries oil the screw so the hammer wont drag and try to unscrew it again.

[jnyork]

Blue locktite should work unless you didn't get all of the oil off the parts. Clean with an appropriate solvent and try the blue locktite again.

This. How old was your tube of Locktite?

[1894cfan]

Blue locktite should work unless you didn't get all of the oil off the parts. Clean with an appropriate solvent and try the blue locktite again.

This. How old was your tube of Locktite?

Gotta admit it was kinda old! Will get a fresh tube and try it all again. Now to strip everything relating to the hammer and clean well. Thanks everybody.

[Chuck 100 yd]

Locktite does have a limited shelf life. I like using fresh stuff and end up throwing away way more than I use. I try to buy it in small quantitys .
I used to repair water bearing shafts on pit pumps and used red Locktite by the big jug every couple months.

[Sixgun]

Yep...I agree......I use carb cleaner on a Q Tip and degrease both threads....heat slightly and apply loc tite..........lacking Loctite, you can use Clear Coat or finger nail polish.---6

[marlinman93]

If using carb or brake cleaner, be very careful to ensure it's fully dry before heating!!!! They contain chemicals that produce phosgene gas when heated, and it is deadly. People have died from heating the chemicals when they were still wet!

[M. M. Wright]

I like starting fluid, (ether) as a final spritz before applying loc-tite. Use compressed air to dry before the loc-tite. It needs at least 70 degrees to cure.

[Sixgun]

If using carb or brake cleaner, be very careful to ensure it's fully dry before heating!!!! They contain chemicals that produce phosgene gas when heated, and it is deadly. People have died from heating the chemicals when they were still wet!

Marlinman.....carb cleaner too???? I knew that about brake cleaner.....for real....no BS????......I've been doing that for years with carb cleaner...I buy it by the case.

I gots to do some investigating......-----6

[GunnyMack]

Acetone is better then carb or brake cleaner. It removes the oil, dries fast as well. Buy it in half gallon can for 12-15 bucks, lasts a long time! We used it for degreasing everything we were about to blue.

As for loctite, it only dries WITHOUT oxygen, apply it and wait 24 hours for full cure.

[1894cfan]

How about lacquer thinner for cleaning gun type oil? It ought to clean and dry fast enough to use before blue locktite. What say you guys?

[Tycer]

That's fine. The key on degreasing metal is having enough volume of liquid in contact long enough to disperse the oil and carry it away from the metal. Simply wiping with a dampened cloth often will not have the volume to carry the oil away and will simply redistribute. It's also a case where faster evaporating is not necessarily better.