‘81 SC17 trampoline track fix

tyronewarriner

Rank: Lubber

Registered: May 08, 2019

Last visit: Aug 14, 2019

Posts: 3
Posted: Aug 13, 2019 - 11:17 PM

Hello all,

The trampoline on my ‘81 SC17 started to come away (out) from the track a couple weeks back, and no matter how many times I slide it back in or try to thicken the luff with tape it comes out. Any suggestions??

No pics, sorry
.
windwardde

Rank: Mate

Registered: Oct 20, 2011

Last visit: Apr 03, 2023

Posts: 167
Posted: Aug 14, 2019 - 06:09 AM

I’m surprised that this happened on an old/existing tramp. Is it new?
I had this happen on a new tramp for my SC 15 and had to have the bolt rope sewn with a slightly thicker diameter.
I believe you only have two choices, which are alter the bolt rope diameter or the track. Typically altering the tramp bolt rope diameter would be easier.

--
Supercat 15
Windrider 17
Several Sunfish and Sunfish clones
Ratboat built from Zuma and Sunfish parts
Shallow water sailor in the Delaware Bay
--
windwardde

Rank: Mate

Registered: Oct 20, 2011

Last visit: Apr 03, 2023

Posts: 167
Posted: Aug 14, 2019 - 06:14 AM

I suppose it could also be a cracked track, that might be hard to see when filled with tramp, or even empty.

--
Supercat 15
Windrider 17
Several Sunfish and Sunfish clones
Ratboat built from Zuma and Sunfish parts
Shallow water sailor in the Delaware Bay
--
MN3

Rank: Master Chief

Registered: Jun 20, 2006

Last visit: Dec 04, 2024

Posts: 7090
Posted: Aug 14, 2019 - 08:11 AM

take off the tramp
determine what the issue is (track deformation or worn bolt rope)

replace or repair as needed
shortyfox

Rank: Mate

Registered: Apr 07, 2017

Last visit: Dec 14, 2024

Posts: 369
Posted: Aug 14, 2019 - 09:51 AM

I had this happen with a NACRA 500 I used to own. When I had a local sailmaker make a tramp, they put to small a bolt rope in it. They fixed it. Since then, I discovered Sunrise Yacht Products in St. Pete. They make a great tramp at a good price.

--
Bill Townsend
G-Cat 5.0
Sarasota
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HULLFLYER

Rank: Mate

Registered: Aug 06, 2004

Last visit: Oct 20, 2024

Posts: 878
Posted: Aug 14, 2019 - 10:44 AM

Is the tramp forward and aft as tight as humanly possible. Hobie sells a tool for tightening tramps. Looks like a T with a fork at the bottom so you can twist and tighten. They are a great tool to have
tyronewarriner

Rank: Lubber

Registered: May 08, 2019

Last visit: Aug 14, 2019

Posts: 3
Posted: Aug 14, 2019 - 01:44 PM

Thanks for the input everyone. It’s an existing tramp but I only just acquired the boat... in summary it appears that my best option is to remove trampoline and take it to a sail shop? I already removed the track and the track looks fine.
windwardde

Rank: Mate

Registered: Oct 20, 2011

Last visit: Apr 03, 2023

Posts: 167
Posted: Aug 14, 2019 - 02:16 PM

Yes, I would remove tramp and take into a sail shop.
If easily removed, I would also take in a piece of extrusion, or measure the ID of the track very carefully.
My early SC 17 had a similar issue with old tramp vs new and I believe that SC may have used differing tracks or the tracks they had, had too much tolerance/variance.

--
Supercat 15
Windrider 17
Several Sunfish and Sunfish clones
Ratboat built from Zuma and Sunfish parts
Shallow water sailor in the Delaware Bay
--
MN3

Rank: Master Chief

Registered: Jun 20, 2006

Last visit: Dec 04, 2024

Posts: 7090
Posted: Aug 14, 2019 - 02:37 PM

Quote I would also take in a piece of extrusion, or measure the ID of the track very carefully.

u can use a drill bit to easily find out the ID