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Engine basics => Engine set up tips => Topic started by: bob branch on January 07, 2007, 07:39:47 AM

Title: prop extension for Saito .72
Post by: bob branch on January 07, 2007, 07:39:47 AM

Does anyone make a prop shaft extension for a Saito .72? I am putting it in a Strega and want to move the motor 3/4 in aft to help CG issues. It will have to accept a jam nut and I plan on pinning the extension, spinner and prop as well.

bob branch

Title: Re: prop extension for Saito .72
Post by: Bob Reeves on January 07, 2007, 08:03:12 AM

Might check with Fox and see if they make one for the M7X1 Saito shaft.

Title: Re: prop extension for Saito .72
Post by: bob branch on January 08, 2007, 07:33:02 PM

nope, no help to be had there. I have 2 Brodak extensions, 1/2 ande 3/4 inch. I need the nut and jam nut to make it happen. Will probably have them machined locally if I cannot find some.

bob

Title: Re: prop extension for Saito .72
Post by: Bob Reeves on January 09, 2007, 09:55:40 AM

Go to eBay and find item # 150034647377  these are 7X1 metric taps. With the right tap wouldn't be too difficult to make your own adaptor..

Title: Re: prop extension for Saito .72
Post by: Randy Powell on January 14, 2007, 04:33:21 PM

I've made a couple of shaft extensions for the 56. Same thimble (though you do have to enlarge the hole slightly) with what I called a 2-way nut. The nut on one end that reaches into the thimble and an extension on the other that will allow a Veco type spinner to attach without a coupling. Looks like a 2.25" long piece of steel tube that has a nut in the middle and is threaded down the middle. 7x1m on one side and 1/4-28 on the other. I've made them for some others in the Northwest.