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Author Topic:   Using existing screw holes

Tom C posted 07-01-2014 01:17 PM ET (US)
In refurbishing my 1988 15 SS I would like to use some existing screw holes rather than plug the current ones and drill new holes. The holes (4 along either side) are where the side rails are attached to the boat sides. The holes are approx. 3/16 dia. How should the holes be prepared as opposed to just puting larger screws back in? Since seeing this in type it might just be easier to fill in the existing holes and drill new ones. The repair would be behind the side rail and not show. Your thoughts please.
kwik_wurk posted 07-01-2014 02:03 PM ET (US)
On screw holes used for rails, fill and drill. --- Mainly because the holes are likely going into loose foam, not something solid. -- Holes going into solid sub straights or wood, can be expanded out if there is no damage to begin with.
n55bz posted 07-01-2014 08:40 PM ET (US)
I have a similar problem with 2000 13 sport hand rails. Need to replace the screws. Would through bolts with back up plates be an option?
Kindest regards,
Bill
deepwater posted 07-01-2014 10:32 PM ET (US)
Back filling small holes with any kind of epoxy is hard because they should be filled from the bottom up and that takes very small needles and thick epoxy will not flow through small needles,,I think its better to drill it out 3X the size of the screw used and epoxy a plug than pilot drill the screw hole
masbama posted 07-01-2014 10:33 PM ET (US)
A trick I used is to fill holes with toothpicks and then put 5200 in. Let sit then use original screws. Worked for me.
deepwater posted 07-03-2014 10:10 AM ET (US)
There are several ways to fill the holes,,On flat surfaces a simple ddl thickness of tape alittle ways out from the hole will keep any epoxy from running very far and provide some sticking up for sanding,,and vertical areas can be controlled by using simple modeling clay to make a cup like dam to catch the epoxy and keep it from running down the sides
Tom C posted 07-03-2014 10:45 AM ET (US)
Thanks to all for suggestions. The holes were on a vertical plane and I filled them with bamboo and gorilla glue. I will drill and use the same screws. This is not an area exposed to standing water.
Binkster posted 07-03-2014 01:11 PM ET (US)
Tom, good idea, I love Gorilla Glue.
rich
deepwater posted 07-05-2014 12:19 PM ET (US)
Gorilla glue is strong but its also foamy and airy,,Hard wood pegs dowels or toothpics and good epoxy would be "my" preferred choice of a fix

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Author	Topic: Using existing screw holes
Tom C	posted 07-01-2014 01:17 PM ET (US) In refurbishing my 1988 15 SS I would like to use some existing screw holes rather than plug the current ones and drill new holes. The holes (4 along either side) are where the side rails are attached to the boat sides. The holes are approx. 3/16 dia. How should the holes be prepared as opposed to just puting larger screws back in? Since seeing this in type it might just be easier to fill in the existing holes and drill new ones. The repair would be behind the side rail and not show. Your thoughts please.
kwik_wurk	posted 07-01-2014 02:03 PM ET (US) On screw holes used for rails, fill and drill. --- Mainly because the holes are likely going into loose foam, not something solid. -- Holes going into solid sub straights or wood, can be expanded out if there is no damage to begin with.
n55bz	posted 07-01-2014 08:40 PM ET (US) I have a similar problem with 2000 13 sport hand rails. Need to replace the screws. Would through bolts with back up plates be an option? Kindest regards, Bill
deepwater	posted 07-01-2014 10:32 PM ET (US) Back filling small holes with any kind of epoxy is hard because they should be filled from the bottom up and that takes very small needles and thick epoxy will not flow through small needles,,I think its better to drill it out 3X the size of the screw used and epoxy a plug than pilot drill the screw hole
masbama	posted 07-01-2014 10:33 PM ET (US) A trick I used is to fill holes with toothpicks and then put 5200 in. Let sit then use original screws. Worked for me.
deepwater	posted 07-03-2014 10:10 AM ET (US) There are several ways to fill the holes,,On flat surfaces a simple ddl thickness of tape alittle ways out from the hole will keep any epoxy from running very far and provide some sticking up for sanding,,and vertical areas can be controlled by using simple modeling clay to make a cup like dam to catch the epoxy and keep it from running down the sides
Tom C	posted 07-03-2014 10:45 AM ET (US) Thanks to all for suggestions. The holes were on a vertical plane and I filled them with bamboo and gorilla glue. I will drill and use the same screws. This is not an area exposed to standing water.
Binkster	posted 07-03-2014 01:11 PM ET (US) Tom, good idea, I love Gorilla Glue. rich
deepwater	posted 07-05-2014 12:19 PM ET (US) Gorilla glue is strong but its also foamy and airy,,Hard wood pegs dowels or toothpics and good epoxy would be "my" preferred choice of a fix