Reply
 
Thread Tools Search this Thread
 
Old 31 May 2015, 11:14   #1
Member
 
Country: UK - England
Town: Sussex
Boat name: Bombard, Y-162
Make: Aerotec 380, Y-Class
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 2,691
Making your own SIB transom wheels

This is another often asked question - ie which wheels to buy etc??

There are many on the market, some specific to certain makes and mostly very expensive. If you want to save a few 's and have a go at making some then this is an easy pattern that I copied from my first SIB and have made three times since to suit various other SIBs. They are lightweight, adaptable and reasonably unobtrusive

These work great on regular design boats but Honwaves and similar types will need adapting.

The first ones I made from SS - much harder to work with (cut/file/drill) but 3mm thick aluminium box and channel works fine and is economical, more than strong enough and easy to work with normal tools. All you really need is a drill/bits, hacksaw and files.

All the materials are easily found on eBay UK and probably cost less than 40 for the last ones I made.

The pics illustrate but basically it's a piece of 'U' section (38mm OD, 32mm ID, 3mm thickness) with central M8 pivot hole one two M6 hole top and bottom for the sprung locking pins. This has the corners top and bottom rounded off. It is fixed to the transom with domed allen key SS bolts and spreader washers on the inner transom.

Main arms are 30mm OD square section, 3mm thickness. Inner end rounded off so it can pivot around the M8 hole and again a hole each for locking up or down. The pivot is just a SS M8 bolt with nylock nut, I just do this up finger tight although you could use a better pivot bolt from a chandlers. I only ever use the wheels to launch and then tie up the boat leaving the wheels in the car.

The wheels themselves are 4" wide solid as I've found these work much better on our local beaches compared to the smaller pneumatic type. 'Axles' are M10 SS bolts.

Pics here show wheels compared:

Beach launching

Obviously you need to measure carefully to calculate the right lengths/positions for the sections so the wheels clear the transom/tubes and are spaced as wide as possible.

And don't forget a tether between the locking pins or you'll invariably drop one in the drink!










__________________

__________________
Max... is offline   Reply With Quote
Old 31 May 2015, 11:15   #2
Member
 
Country: UK - England
Town: Sussex
Boat name: Bombard, Y-162
Make: Aerotec 380, Y-Class
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 2,691





__________________

__________________
Max... is offline   Reply With Quote
Old 31 May 2015, 13:22   #3
Member
 
Country: UK - England
Town: North Devon
Length: 3m +
Join Date: Sep 2014
Posts: 36
Sib Transom Wheels

Some really good tips there thank you Max, I had massive problems with my wheels, my SIB has inflatable tabs at rhe transom, so I purchased a set of bent tube ones from ebay, useless, the wheels to small, the tubes move around in the sockets on the transom, tubes also flexed massively on the bend, I fitted sand hopper wheels, re bent the tube for a larger gap around the tabs and filled the tubes with Isopon, still not ideal but at least now they are useable, thinking of making a new set from square box aluminium to eliminate the excessive movement in the transo sockets. Have you made any like that previously?

cantona
__________________
cantona is offline   Reply With Quote
Old 31 May 2015, 15:55   #4
Member
 
Stevem's Avatar
 
Country: UK - England
Town: Tyne and Wear
Make: Aerotec 380
Length: 3m +
Engine: Tohatsu 25
Join Date: Feb 2015
Posts: 209
Yes, thanks for that. If i ever need any more i will be copying that design, looks simple and bomb proof ( always the best ) I was tempted to make some before i bought my trems but wanted some in a hurry, though actually once the materials are sourced i bet they dont take too long to make. Cheers.
__________________
Stevem is offline   Reply With Quote
Old 31 May 2015, 17:14   #5
Member
 
Country: UK - England
Town: gloucestershire
Length: 4m +
Join Date: Nov 2012
Posts: 340
What do you use to reduce the bore of the sand hoppers (25mm?) down to the M10 bolt ?.
__________________
camelgas is offline   Reply With Quote
Old 31 May 2015, 17:41   #6
Member
 
Country: UK - England
Town: Sussex
Boat name: Bombard, Y-162
Make: Aerotec 380, Y-Class
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 2,691
Cheers chaps. Cantona, I have not made any like that, would be more tricky for sure.

Camelgas, I have a big box full of various alu, plastic, Delrin, PVC bushes, tubes, spacers etc which do the job nicely.
__________________
Max... is offline   Reply With Quote
Old 01 June 2015, 00:37   #7
Member
 
Country: Hong Kong
Length: 10m +
Join Date: Oct 2014
Posts: 63
Thanks for posting Max!
__________________
Neuner is offline   Reply With Quote
Old 01 June 2015, 05:20   #8
Member
 
Country: UK - England
Town: Sussex
Boat name: Bombard, Y-162
Make: Aerotec 380, Y-Class
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 2,691
A few more details (applicable to an Aerotec mainly in sizing).

Transom bracket is 230mm, central hole and others 90mm distance from centre.

Wheel arm is 375mm, pivot 12mm from end, locking pin hole 90mm further from there, wheel axle 15mm from other end. Wheel diameter 270mm.










__________________
Max... is offline   Reply With Quote
Old 01 June 2015, 15:14   #9
Member
 
Country: UK - England
Town: North Devon
Length: 3m +
Join Date: Sep 2014
Posts: 36
SIB Wheels

Apologies Max

Camelgaz I made a complete new extended axle shaft that fitted over the existing one, had to do that because the sand hoppers were wider than the original wheels and had to make sure the new wheels missed the tubes.

Cantona
__________________

__________________
cantona is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:59.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.