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Thread: Drilling in Gelcoat
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05-07-2010, 11:21 AM #1Senior Member
- Join Date
- Aug 2007
- Location
- Alpine, Utah
- Posts
- 191
Drilling in Gelcoat
I"m installing a new heater line. I need to drill a big (about 5 inch diameter) hole into the panel between the open bow and the drivers seat to put the pull out heater line. What is the best way to do this?
Thanks,
Garn
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05-07-2010, 09:21 PM #2
Garn,
If you are installing the heater tube, it requires a 4" diameter hole. Tape the gelcoal with at least two layers of masking tape. Get a brand new 4" hole saw, drill a pilot hole, then drill in reverse. Keep the hole saw square to the gelcoat and hold it steady as you drill in reverse until you get thru the gelcoat. Most people then switch it to forward and drill the rest of the way thru.
I just finished installing a three outlet heater in my 2006 LSV so I drilled three 4" holes in the gelcoat this way. Below is a link to my how to post.
Good luck!
Al
https://forum.moomba.com/showthread.php?t=10840Al
2006 Mobius LSV
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05-07-2010, 09:37 PM #3
Remember the heater tube holder requires some room behind the mounting so check for the clearance.
1998 Mobius
310 HP PCM
SOLD
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05-07-2010, 11:31 PM #4Senior Member
- Join Date
- Aug 2007
- Location
- Alpine, Utah
- Posts
- 191
Thank you.
Thank you both for your help. That is exactly the information I needed. I'll install it tomorrow.
Thank you again,
Garn
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05-07-2010, 11:33 PM #5
Garn,
After re-reading your post, I'm wondering exactly where you plan to drill this hole, and is it for the heater tube itself or for the flex duct that connects to the heater tube? I'm having a hard time visualizing what you're planning to do. What year and boat do you have?
AlAl
2006 Mobius LSV
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05-10-2010, 10:41 AM #6Senior Member
- Join Date
- Aug 2007
- Location
- Alpine, Utah
- Posts
- 191
I have on 07 Mobius LS (direct drive). And what you explained to me in your first post is exactly what I need to do (the heater tube). I didn't end up getting to it over the weekend. So I'll do it in a day or two.
Thanks again,
Garn