Thorsen 77mc Ratchet

[Polo_Karl]

Cleaning up a Thorsen 77mc 1/4 ratchet. Am I missing a part? Should there be a washer between the split ring and body? It seems to have a lot of play in and out of the head. Thanks!

 

[Sunset_Z28]

I think that's just the way that design is. I've had a few like that.

 

[Polo_Karl]

Bummer. But thanks for the info!

 

[DadsTools]

Yep. They're actually no different than the mechanism found in those cheap round head Taiwan ratchets that came in so many budget sets. Some makes are a little better than others, but they all have the same kinds of issues. There is no washer. It's just the way they were made.

 

[bonneyman]

Good little ratchets. The Thorsen roundheads were about as tough as they come. The coiled flat retaining spring allows a bit of wiggle movement, but it should be a problem.

 

[lauver]

That is a good little ratchet and fairly durable design. Most have a lot of end play in the ratchet core. I have had good luck making shims that fit between the ratchet core and the flat retainer spring. Aluminum beer cans are a good source for shim stock (about the right thickness and easy to cut).

You can cut the outer diameter with tin snips and the inner diameter with a circular punch. After cutting the outer & inner diameters, flatten it out with a soft mallet. A quick easy job ready for installation