Fixing Timing Issues

[Ray]

Hi I need some help to locate a pic showing a method for correcting timing problems.It shows the hand in a vise and the guy using a large pin and a mallet to slightly bend down the hand larger pin.I saved the pic but can´t find it anywhere.The gun is a .32 SWL HE fifth change.

Thanks for any help, Regards, Ray

 

[Protocall_Design]

What they are doing is bending the pin very slightly so the hand leans closer to the center of the cylinder. This advances the timing so the cylinder stop drops into the notch sooner. It's likely that you can bend it by hand, leaving the hand on the trigger. The older pivot pins (and most other parts), were a softer metal than modern guns. This gives a similar effect as a wider hand.

 

[Alk8944]

What OP refers to is "carry-up", not timing. There is nothing you can do to adjust "timing" because it is entirely dependent upon relative position of the cylinder stop notches to the charge holes in the cylinder! I am surprised Warren did not explain that!

 

[VictorLouis]

The Gunsmith, Inc.

He refers to the technique as "Heat, and Bend".

 

[Protocall_Design]

What OP refers to is "carry-up", not timing. There is nothing you can do to adjust "timing" because it is entirely dependent upon relative position of the cylinder stop notches to the charge holes in the cylinder! I am surprised Warren did not explain that!

You are right, as usual. I was only addressing the procedure as described, and didn't think about the carry up versus timing nomenclature.

 

[steelslaver]

Actually you can adjust timing slightly. You can peen the stop notches, change the width of the stop.

Most people however have carry up confused with actual timing. Carry up is a function of the hand, the hand window and ratchet teeth. Plus, end shake, I always check end shake before trying to adjust carry up. I would replace the hand before trying to form it or its pins. I would also consider peening the teeth if it was only one or 2 chambers

How I check actual timing. In this case a new short 45 acp cylinder in a 1917 frame for my PPC project. In this case I wanted to be sure everything is as close as possible to perfect. The brass piece threads into and N frame and it is reamed to .452 and I check timing alignment with a .452 pin gauge. I am a 45 guy but if I wanted to check a 44 or 357. I would just turn a piece the stepped from .452 to .429 or .357. Most people are happy with a range rod. but they can only be land diameter not groove dia. which due to the forcing cone is usually good enough.

 

[Ray]

Thanks for the answers friends, so it´s a carry up problem. But I still would like to see that picture and save it.
Thanks again and Merry Christmas to all.
Regards, Ray


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