Author Topic: New DT tappet adjusters  (Read 1709 times)

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Offline Doug

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New DT tappet adjusters
« on: 13 Oct 2013 at 23:33 »
For sale, new Dirt Track tappet adjuster screw (part #4360-1), and jam nut (part #h76).

Also fits: OC, 1925-28 TT, G/H28, F/G31-32, and 1934-35 OW/0W1.


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The adjuster screw and jam nut are CNC machined from shock resistant S7 tool steel, vacuum heat treated and then air tempered to HRc57.

Fully interchangeable with the original, including the special 7/23-33 Douglas threads.

Cost is $18US per adjuster screw, jam nut included. Packing, postage, and insurance at cost.

D. Kephart
Glen Mills, PA, USA

Offline Doug

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Re: New DT tappet adjusters
« Reply #1 on: 28 Feb 2016 at 03:56 »
Note: Examples of OB tappets have been seen with 1/4-26 thread. So when retrofitting to earlier tappets, be sure to check the thread. These only work with tappets tapped to 7/32-33.

-Doug

 

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