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Old 03 September 2017, 11:30   #1
eze
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Moving centre console forward - project

Hi Guys,

I intend to move the centre console/single jockey seat further forward at some stage. This will allow me to fit a single jockey seat to the aft and imho will allow the boat to plane better when 2 up albeit at the expense of a rougher ride at the helm.

4.3M Humber Assault

Questions

1 - When moving console/jockey seat forward, is it best practise to re-use the existing fixing holes (if possible) or should I fill the existing fixing holes and pilot drill fresh holes to accept the 4.8mm x 18mm self tappers?

2 - Assuming I have to drill new holes I feel a 3.5mm pilot hole into the deck would be best for a 4.8mm self tapper?

Any advice welcome, thanks
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Old 03 September 2017, 11:54   #2
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When I did my jockey seats I drilled new holes reason new wood better than old also I used hex head coach screws instead of pozi head screws reason easier to do up without slipping with a coarser thread sealed with sikaflex.
Pilot hole need to be same size as the shank of the screw you use
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Old 03 September 2017, 12:08   #3
eze
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Quote:
Originally Posted by jeffstevens763@g View Post
When I did my jockey seats I drilled new holes reason new wood better than old also I used hex head coach screws instead of pozi head screws reason easier to do up without slipping with a coarser thread sealed with sikaflex.
Pilot hole need to be same size as the shank of the screw you use
Hi Jeff, great idea, do we know of an online stockist of s/s hex head coach screws?
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Old 03 September 2017, 14:21   #4
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Try seascrew I think that's were I got mine it's good site for other stuff too
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Old 03 September 2017, 16:31   #5
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Hi Jeff, great idea, do we know of an online stockist of s/s hex head coach screws?
Ebay and search for 316 stainless coach screw.
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Old 04 September 2017, 02:49   #6
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don't depend on just the screws The proper way is to use screws/ fixings and sikaflex or as I did Scres, sikaflex and fibreglass matting
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Old 04 September 2017, 04:47   #7
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TSM is right must be glued down i used marine flex same as sika but cheaper also when you fill your old holes with wood plugs use gorilla glue it's waterproof and swells 4-5 times giving a good seal then a coat of flow coat on top when sanded down to seal.
east coast resin supplies for flow coat / glassfiber
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Old 04 September 2017, 05:12   #8
eze
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Quote:
Originally Posted by jeffstevens763@g View Post
TSM is right must be glued down i used marine flex same as sika but cheaper also when you fill your old holes with wood plugs use gorilla glue it's waterproof and swells 4-5 times giving a good seal then a coat of flow coat on top when sanded down to seal.
east coast resin supplies for flow coat / glassfiber
I was going to use chopped grp to fill the holes in the wood deck but maybe gorilla glue mixed with wood shaving would be easier and cheaper.
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Old 04 September 2017, 05:16   #9
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I was going to use chopped grp to fill the holes in the wood deck but maybe gorilla glue mixed with wood shaving would be easier and cheaper.
chopped strand isn't waterproof wet your plug of wood with water then coat with gorilla glue bang them in the hole [tight fit] the glue expands with the water activating it
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Old 04 September 2017, 05:50   #10
eze
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Quote:
Originally Posted by jeffstevens763@g View Post
chopped strand isn't waterproof wet your plug of wood with water then coat with gorilla glue bang them in the hole [tight fit] the glue expands with the water activating it
Thanks Jeff, will do.

Once holes are plugged then I sand deck, acetone clean & apply flocoat...is it that simple or have I missed something here? Aha....


1 - how much material do I need to remove from existing flocoat deck, am I just getting a good key for adhesion? (I will be using the anti slip flocoat)

2 - Do I use ordinary masking tape or do I need to mask off where the sponsons are glued to deck with something a bit heavier duty?

thanks
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