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Need help on taking out Naish cambers

 
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Ugly_Bird



Joined: 04 Nov 2008
Posts: 227

PostPosted: Thu May 31, 2018 9:00 am    Post subject: Need help on taking out Naish cambers Reply with quote

I need to shim the upper camber on 2014 Naish Indy 7.6 sail. An attempt to remove the camber from the batten stopper was PITA and not successful. The stopper has two locking teeth, which prevent the camber coming off the stopper (see the pic). There are no zippers/velcros around the cambers on this sail. Reaching through the luff is not easy.

Is there a trick to remove the camber without damaging anything?

Thanks!

Andrei.



Naish camber and batten stopper.JPG
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Naish camber and batten stopper.JPG


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dllee



Joined: 03 Jul 2009
Posts: 3908
Location: East Bay

PostPosted: Thu May 31, 2018 2:12 pm    Post subject: Reply with quote

I took the bottom cams out of my 5 and 5.8 Stealth and Grand Prix by turning the cam up and down until they slipped past a notch. Appears to be no damage to the notches, but I don't use bottom cams for easier rigging and rotation. Both still have 3 cams anyways.
Contact Naish if you need an official answer.
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coachg



Joined: 10 Sep 2000
Posts: 2609

PostPosted: Fri Jun 01, 2018 6:55 pm    Post subject: Reply with quote

Hi Andrei,

As Leed said, it should come off if you rock the cam up & down. I have those same cams on my Indy, Stealth & Redline. All of them remove & insert the same way. My sails came with a packet of shims & a small instructional manual on removing the cams so I didn't figure out how to remove or shim them on my own.

Coachg
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Ugly_Bird



Joined: 04 Nov 2008
Posts: 227

PostPosted: Fri Jun 01, 2018 7:13 pm    Post subject: Reply with quote

dllee wrote:
I took the bottom cams out of my 5 and 5.8 Stealth and Grand Prix by turning the cam up and down until they slipped past a notch. Appears to be no damage to the notches, but I don't use bottom cams for easier rigging and rotation. Both still have 3 cams anyways.


Thanks! It helped! I also used a spacer on the side where I was rocking the cam to. It gave me additional leverage.

dllee wrote:

Contact Naish if you need an official answer.


I did. It takes a while to hear back.

Andrei.
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Ugly_Bird



Joined: 04 Nov 2008
Posts: 227

PostPosted: Fri Jun 01, 2018 7:16 pm    Post subject: Reply with quote

coachg wrote:
Hi Andrei,

As Leed said, it should come off if you rock the cam up & down. I have those same cams on my Indy, Stealth & Redline. All of them remove & insert the same way. My sails came with a packet of shims & a small instructional manual on removing the cams so I didn't figure out how to remove or shim them on my own.

Coachg


Thank you for the reply.
Interesting. Back in 2014 when I received the new sail there were no rigging instructions, no shims... Could be just missing. I bought a set of shims from Sailworks.

Andrei.
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Ugly_Bird



Joined: 04 Nov 2008
Posts: 227

PostPosted: Tue Sep 04, 2018 9:00 pm    Post subject: Reply with quote

Ugly_Bird wrote:

Interesting. Back in 2014 when I received the new sail there were no rigging instructions, no shims... Could be just missing. I bought a set of shims from Sailworks.
Andrei.


With all the advice it became easy to remove the cams from the stoppers. I played around with the shims and downhaul amounts and still did not have much improvement with the upper cam to stay in place. Especially before the water starts when I had to pop the sail. Despite that I'm using the recommended mast for this sail. It seems that design of the upper cam is somewhat funky.



There are no guards on the sides which would prevent the cam from popping off.

So I started looking for the alternatives. And found Bic OD upper roller cam P842 to fit perfectly and stay where it supposed to. This one does have the guards mentioned above



Now the challenge is with the lower cam batten stopper (AKA cam widget). The design also looks strange. The corresponding batten pushes against this 1mm thick plastic while the cam keeps grinding against this plastic. As the result the stopper cracks and finally breaks. It lasts one to two seasons.

The stopper is attached to the batten pocket with four rivets. Given the confined space, it was difficult to remove old rivets and install the new ones with a new stopper. I'm curious what kind of bolts and nuts are suitable for this fix-up? I saw that Bic also uses them while Sailworks is riveting.
Here is a pic of the Bic stopper AKA widget:



Could not quite figure out from the picture if these are short stainless bolts with locking nuts or stainless binding barrels?
https://www.mcmaster.com/binding-posts
They also come with hex head, which would be very easy to tighten in the confined space.
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