Stripped thread repair

[jetmechmarty]

My fuel cap failed on my return from XS East.


The threads in the lock stripped.


Upon recommendation from Brent, I decided to give Loctite Form-a-Thread a try.


I also made a decision to replace the cheesy little screws with a quality metric fastener.


I used a drill to make sure the new fasteners would go all the way into the holes. The new fasteners were coated thoroughly with release agent and the two part epoxy was mixed in equal amounts. I put some in the holes and some on the fasteners.


I had to work fast, as this stuff sets up in about three minutes. I threaded the fasteners into the lock. I cleaned off the excess immediately.


After five minutes, the fasteners are backed out and the lock has new threads.


After thirty minutes, I reassembled the latch assembly.


Success!


After Brent's recommendation, I looked the stuff up on Youtube. Have a look!
Loctite Stripped Thread Repair Tip | Fix My Hog

[motoman]

Nice Marty! Good to see someone test this procedure out. I have had the package of the same product. I intend to use it on one the fuel bowl bolt holes as one has partially stripped threads in the upper casting. Doesn't leak, but being fuel associated, not to 'push' my luck. I see from you using it, there apparently wasn't a problem removing the screw leaving the 'new' thread in tact....
So, when I pull the carb bank back off to make my caculated .015 float correction to get those dern fuel levels identical across all four, I'll 'give it a go. (lol...to bad the 81's didn't have a 'quick-release' for the carb bank, but then again, I'd likely have that wore out as many times as I"ve had them off...as you could imagine)
Thanks for being the 'tester'!.

[jetmechmarty]

I see from you using it, there apparently wasn't a problem removing the screw leaving the 'new' thread in tact....

The fastener is painted with release agent. It works. I have a carb body with similar issue. This is the fix!

[motoman]

The fastener is painted with release agent. It works. I have a carb body with similar issue. This is the fix!

I saw this demonstrated on SpeedVision TV 10yrs. back in a 'supposed' pit repair on a stripped head bolt threads in a cast iron block.After the 'set' time needed, the head bolt was then installed and torqued back to its 85ft.lbs. Held fine without pulling the 'new' threads!
With that, figured the 'new' threads would surely hold the tightening of a measly little float bowl allen-head screw. My only concern was that the release agent DOES actually work.......a permanently stuck carb bowl screw in the Bentley's otherwise perfectly good carb bank would NOT be a good thing.
Again, thanks for Brent's suggestion, and YOU being the 'victim' for testing!.

[jetmechmarty]

Keep in mind that I didn't just mend stripped threads. I made threads where there were none!

[Rasputin]

Ok I just watched the vid and this stuff is pretty cool. I am wondering if it thickens a bit before application, like if you left it 5 or so minutes would it be thicker than the vid showed but still workable?
I am thinking about broken carb posts and if this may be something to give a try just for giggles. Anyone know if it is suitable for a submerged gas usage?
Also thinking this may be a good fix for a stripped clutch basket when someone gets over zealous on the torque.

[jetmechmarty]

I don't think it's suitable for a broken post. It goes from liquid to done a bit all of a sudden. There is a chart on the package with torque info.

[DiverRay]

Marty, I do NOT think the "cheesy little screws" are stock!! The Standard caps I've had apart do NOT have that type of screw! They ALL had a "standard" metric screw installed.
That said, it looks like something I may need around the shop......

[jetmechmarty]

Ray,
Interestingly enough, those cheesy little screws are JIS. It's hard to believe they held as long as they did. I've had the bike since 2003.