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Motor Mount


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#1 Jeffmaturo

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Posted 09 August 2018 - 08:18 PM

Anyone hear of an adjustable OB motor mount that has a one screw adjustment? 

 

Also what is considered the best OB motor mount available? thanks! 





#2 Bill Britton

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Posted 09 August 2018 - 11:03 PM

Hi-Jacker Motor Mount if your referring to height adjustment.

 

Attached File  post-18010-0-91663500-1409693874.jpg   322.21KB   5 downloads

 

Attached File  post-18010-0-13279700-1409693648.jpg   160.56KB   4 downloads




Edited by Bill Britton, 09 August 2018 - 11:10 PM.


#3 topfuel443

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Posted 10 August 2018 - 06:11 AM

Hi-jacks have always been my go to mount, they are a very quality piece. They arent made any more, so are getting hard to find. Im trying to develop a mount with StumpFAB, but ran into a hiccup on the last prototype. 

 

gallery_241_1948_3387543.jpeg



#4 Jeffmaturo

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Posted 10 August 2018 - 08:01 PM

Thanks guys. 



#5 Mark Poole ModVP

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Posted 10 August 2018 - 10:06 PM

 Another good and simple designed one was the one that Precision Boats sold. I ran a couple of them for years. Still use them, just need the pin bushings replaced.



#6 Jim Allen

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Posted 12 August 2018 - 12:49 PM

Jeff,

 

I don't know about a one screw adjustment for depth & thrust angle. However, the custom light weight mount I use precisely controls the "squareness" of the up & down depth movement, by having this part of the mount precisely located in a wide track machined in a base that is permanently mounted to the hull. Four 8/32 SHCS lock this piece in place to the base. Six more 8/32 FHSHCS screws hold the permanently mounted wide track base to the hull. Part of the head of one of these can be seen in the photos.  The precisely machined groove in the mount part that is precisely located in the machined track holds the necessary thrust adjuster. It is held in place with two 8/32 SHCS. Hardened steel washers are used where necessary.  I also have an adjustment device for the push rods connected to the PTO when making depth & thrust adjustments. A picture is worth a thousand words!

 

Jim Allen

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Edited by Jim Allen, 12 August 2018 - 12:54 PM.


#7 Jeffmaturo

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Posted 13 August 2018 - 01:04 PM

Jim that is a nice looking mount. Thanks for posting the pics. 



#8 Jim Allen

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Posted 13 August 2018 - 03:32 PM

Jeff,

 

At the 1/4" shaft pivot point there are 2 machined teflon thrust washers used to eliminate any possible play. The washers are a slight interference fit but do not cause any noticeable drag on the pto's movement. The PTO's 1/4" shaft rotates in a precision machined Barium metal bushing which has a grease fitting. These parts were designed to last indefinitely!

 

JA



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