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02-19-2020, 09:14 PM | #1 |
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Join Date: May 2010
Location: maryland
Posts: 183
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Hand throttle notches
My 31 Tudor has never been restored but well maintained. The body + interior parts are all original.
Problem - the notches on the hand throttle are pretty much worn flat. What "make-do" repair can I do to make the control stay in one place while driving. I'd like to use it most when warming up the engine. But, maybe occasionally other times. Is replacement the only possible solution? I really want to disassemble the steering assembly just to the the manual control working/staying in position. All ideas greatly appreciated. Jim G [email protected] - if you want to chat about solutions. |
02-19-2020, 10:06 PM | #2 |
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Join Date: Mar 2013
Location: Bend Or.
Posts: 1,056
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Re: Hand throttle notches
How badly is the rod worn. If it's just the plate. You can deepen the grooves with a three corner file. If the rod is worn as well, most are, then you are going to have to replace the rod and renew the plate.
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Bill Worden 1929 Roadster 1929 Briggs Town Sedan 1930 Closed Cab pickup Smith Motor Compressor 1951 Ford F1 High Desert Model A's |
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02-19-2020, 10:18 PM | #3 |
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Join Date: Feb 2011
Location: Lincoln, Nebraska
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Re: Hand throttle notches
Unhook the control rod at the firewall and then rotate the handle up so it goes past the plate it rubs against. Then gently push the handle forward to put just a bit more bend in it so it makes firmer contact against the plate.
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02-20-2020, 12:36 PM | #4 |
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Location: Pitt Meadows BC
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Re: Hand throttle notches
The throttle and advance handles are held under spring tension at the lower end of the steering column. If the springs have weakened, the tension can be lost and the handle has no down ward push on the notched plate. I guess one could replace the springs with new ones, or insert some washers cut like a horse shoe to shim the springs for a better tension.
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02-20-2020, 12:37 PM | #5 |
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Join Date: Aug 2015
Location: Clermont in Central Florida
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Re: Hand throttle notches
Will that work or break something? I have the same problem, but I have been reluctant to try bending the rod in place. Is this a common solution?
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02-20-2020, 12:55 PM | #6 |
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Location: Virginia
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Re: Hand throttle notches
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02-20-2020, 02:44 PM | #7 |
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Join Date: May 2010
Location: Fresno, Ca.
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Re: Hand throttle notches
IF you look at the back side of the rods where it touches the "V" notches,..they will be worn flat. That area is supposed to be round. Either weld up the originals and reshape
then replate...OR buy repops and hope they fit.. |
02-20-2020, 05:38 PM | #8 |
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Join Date: Oct 2015
Location: Bay City Michigan
Posts: 1,050
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Re: Hand throttle notches
get some needle files and recut the grooves. https://www.amazon.com/Hardened-Stre...582238368&s=hi
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02-20-2020, 06:04 PM | #9 |
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Join Date: Apr 2012
Posts: 1,542
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Re: Hand throttle notches
good topic, with no easy solutions. years ago I saw ads for services that would build up the bottom side with weld then replate it, but I have not seen that offered for a long time. I have read about fitment problems with the repros, as one member has said. As I recall the complaint was that the 90 degree bend was not defined enough
getting the lower springs on and off is challenging, as is replacing the anti-rattlers within the tube. too bad the later columns did not use the replaceable quadrant that the earlier versions did. |
02-20-2020, 07:40 PM | #10 | |
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Location: Bend Or.
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Re: Hand throttle notches
Quote:
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Bill Worden 1929 Roadster 1929 Briggs Town Sedan 1930 Closed Cab pickup Smith Motor Compressor 1951 Ford F1 High Desert Model A's |
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02-20-2020, 08:18 PM | #11 |
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Re: Hand throttle notches
Keep in mind that they are spring loaded and can be pulled toward you to get some room to work with a file.
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02-20-2020, 09:16 PM | #12 |
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Join Date: Aug 2016
Location: West Virginia
Posts: 430
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Re: Hand throttle notches
I had mine all apart. I built up the worn part on the underside of the spark and throttle rods with brass and filed them back to shape. I re-cut the quadrants with 3 corner file and reassembled with new springs.
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02-22-2020, 05:13 PM | #13 |
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Location: Chillicothe, Missouri
Posts: 1,176
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Re: Hand throttle notches
You can weld up the worn away area then carefully grind or file the raised edge to fit into the grooves.
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02-23-2020, 01:02 PM | #14 |
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Re: Hand throttle notches
If the rod springs are weak and or the grooves are worn, any issues caused if a second plate is added to the top of the old current plate?
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