Author Topic: McCoy 35 RH bolrs (Read 928 times)

Lyle Spiegel · « **on:** February 18, 2018, 04:15:42 PM »

I have orginal 35 RH in goos shape. Would like to replace cylinder head & backplate with socketheads. What is thread and length i need? Also, what size Philips tip do i need to use so I dont bugger up the original ones?
Same question for Johnson 35 CS.
Thanks

Dan McEntee · « **Reply #1 on:** February 18, 2018, 04:41:15 PM »

Use a #1 or #2 Phillips screw driver, just test how well it fits and if it feels solid, then crank it loose. Use a small scale or ruler and measure from the bottom of the head to the end of the shank, and that is the length. No real mystery with USS stuff.
Type at you later,
Dan McEntee

Lyle Spiegel · « **Reply #2 on:** February 18, 2018, 04:58:47 PM »

Rhank you. I have feeling thread might not be 4-40. Maybe 5-40? Hoping some one will verify.

Bootlegger · « **Reply #3 on:** February 18, 2018, 05:10:47 PM »

I f memory serves, they are 4-40, try one if you have it..

Robert Zambelli · « **Reply #4 on:** February 19, 2018, 04:41:38 AM »

Yes, 4-40.
You can get them from McMaster-Carr.
Stainless if you want.
Bob Z.

dennis lipsett · « **Reply #5 on:** February 19, 2018, 11:35:04 AM »

Don't waste your time with Phillips head when socket screws are available. I redid about a dozen of the McCoy red heads and used them. I also did not use any gaskets but used liquid gaskets and have never had a leak or blown seal. Also you get a slight compression increase. All of them turned into one flip starters.
Most of the McCoy engine I saw were not wore out, just badly maintained.

Dennis

Author Topic: McCoy 35 RH bolrs (Read 928 times)

Lyle Spiegel

McCoy 35 RH bolrs

Dan McEntee

Re: McCoy 35 RH bolrs

Lyle Spiegel

Re: McCoy 35 RH bolrs

Bootlegger

Re: McCoy 35 RH bolrs

Robert Zambelli

Re: McCoy 35 RH bolrs

dennis lipsett

Re: McCoy 35 RH bolrs