Knob on floor pedal for exhaust cutout 'teens Buick

[Morgan Wright]

Does anybody know what the cutout knob looks like in 'teens Buicks.

 

Mine is missing, all I have is a 5/16 threaded bolt sticking up.

 

 

 

 

[21raceabout]

This is what the knob looks like on a 1915 C-25.

[Mark Shaw]

Some have bumps and some have circles like the one above.

 

[TXSearsGuy]

looks almost like a drawer pull sold as ACE Hardware... that is what I used on my 14 Buick.

[Morgan Wright]

Thanks

[Terry Wiegand]

Here is what the cutout plunger pedal looks like on my '16 D-45.

 

Terry Wiegand

South Hutchinson, Kansas

[Terry Wiegand]

Another photo of the pedal.

 

Terry Wiegand

South Hutchinson, Kansas

[Buicknutty]

 The one that Terry posted is very similar to the one on my '16 D45 McLaughlin, though I will double check when I get the chance.

Keith

[Morgan Wright]

This is the best I could come up with.

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[Morgan Wright]

This is how it was.

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Now, cutout engaged.

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And disengaged.

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Edited March 16, 2020 by Morgan Wright (see edit history)

[Morgan Wright]

I used a 5/16 coupler and a 5/16 engine stud, and tapped a 5/16 fine thread hole in the maple ball I made on a wood lathe.

[Larry Schramm]

You did not try hard enough. Just needed to go to Home Depot, Menard's, Lowe's and pick one out from the cabinet knob selection and screw it on.  Might have needed to drill and tap the know to match the lever.  Simple job for maybe $4.00.

[21raceabout]

 

Or modify a HSS lathe cutter with a dremel cutoff wheel and make a series of concentric rings in a piece of cast iron rod after first turning and tapping the other end.  

[Morgan Wright]

9 hours ago, 21raceabout said:

 

Or modify a HSS lathe cutter with a dremel cutoff wheel and make a series of concentric rings in a piece of cast iron rod after first turning and tapping the other end.  

 

 

I wanted to make a hand operated knob like a stick shift. I have no idea why.

[Morgan Wright]

OK I went and got a $3 metal knob at Home Depot in case I don't like using the hand shift knob. Drilled and tapped it, but it's white metal so probably not very strong:

 

Need to make a real one from steel

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[Daves1940Buick56S]

Maybe it's not correct, but the maple ball looks cool! You can tell people that the "gearshift" was made for folks with really, really long arms!

[Morgan Wright]

14 hours ago, Daves1940Buick56S said:

Maybe it's not correct, but the maple ball looks cool! You can tell people that the "gearshift" was made for folks with really, really long arms!

 

My arm wasn't long enough, it's better as a foot pedal, so this is how it looks now engaged and disengaged:

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[Morgan Wright]

Does anybody know what year Buick stopped using exhaust cutouts? 

[Morgan Wright]

I think they became banned at some point.

 

In the 1929 Master Parts List, the index lists many parts under "cutout" this or that, with parts group numbers 3.740 to 3.745, but when you go to the body of the list, all those parts are gone, the whole section is gone, except one part called accelerator pedal button "formerly used as cutout plunger button." Like they were reusing the part for something because the original purpose had been banned.

 

Another reason I think it was banned is my cutout mechanism had a cotter pin blocking it from functioning. I thought it was all rusted together or broken until I saw the cotter pin, and when I removed it, the mechanism worked fine. Why would somebody put a cotter pin there to stop the cutout from working? All they had to do was not use it. I think they put the cotter pin there when it was banned.

[Morgan Wright]

I am surprised how little difference it makes. I ran the car and revved it both ways. Cutout engaged is louder, but nothing like I would have thought. Heck, my neighbor's beat up Hyundai with the bad muffler is 100 times louder.