Does it hurt the mast hole?

> 10 years ago
Reply
Register to post, see what you've read, and subscribe to topics.
K Dog
K Dog
VIC
1847 posts
VIC, 1847 posts
16 Feb 2012 2:11pm
I have a 400 75% Carbon SDM Powerex(?) mast which doesn't like my 5m NP mast knob in its standard tip hole.... for it to fit you have to take out the Powerex mast knob and just let the NP knob all the way in....... does this hurt the mast hole? Is it is a non-issue?

Discuss. *Strokes chin*
Reflex Films
Reflex Films
WA
1460 posts
WA, 1460 posts
16 Feb 2012 11:17am






i give this thread 10 minutes before it degenerates completely.
powersloshin
powersloshin
NSW
1855 posts
NSW, 1855 posts
16 Feb 2012 2:46pm
I think the only issue is to make sure that dirt and water still cannot get inside the top of the mast
mathew
mathew
QLD
2167 posts
QLD, 2167 posts
16 Feb 2012 1:59pm
powersloshin said...

I think the only issue is to make sure that dirt and water still cannot get inside the top of the mast


^^^ what he said...

Most two-piece masts will allow some micro-sediment between the ferrules -> you dont want that unless you like having a 1-piece mast.
dinsdale
dinsdale
WA
1227 posts
WA, 1227 posts
16 Feb 2012 12:30pm
powersloshin said...

I think the only issue is to make sure that dirt and water still cannot get inside the top of the mast

A very tight fitting piece of pool noodle, smeared in silicon grease and jammed just a couple of inches into the top. If you can get it in without the grease, all the better, but the dirt it'll attract up there won't be too much of a problem - the grease is just to facilitate the insertion of the noodle stuff. I compress the noodle to about 1/3 of its original cross sectional area, so once in it ain't comin' out accidentally.

K Dog
K Dog
VIC
1847 posts
VIC, 1847 posts
16 Feb 2012 3:44pm
dinsdale said...

powersloshin said...

I think the only issue is to make sure that dirt and water still cannot get inside the top of the mast

A very tight fitting piece of pool noodle, smeared in silicon grease and jammed just a couple of inches into the top. If you can get it in without the grease, all the better, but the dirt it'll attract up there won't be too much of a problem - the grease is just to facilitate the insertion of the noodle stuff. I compress the noodle to about 1/3 of its original cross sectional area, so once in it ain't comin' out accidentally.




Not a bad idea. I might measure up the holes tonight, see if that Ezzy sail mast knob thing will do the job, if not the pool noodle could be the way to go.....
jh2703
jh2703
NSW
1225 posts
NSW, 1225 posts
16 Feb 2012 8:40pm
Have a look inside the top of your NP sail bag, You should find a pocket which contains the other type of mast "knob", Just change it over and you'll be sweet. Might sound stupid but I know a few people that have never looked inside this pocket......Unless the pocket has fallen off that is.
Mark _australia
Mark _australia
WA
23647 posts
WA, 23647 posts
16 Feb 2012 8:25pm
The NP one is tapered, fatter than most, and the strap part is bevelled. You need to change the bit on the sail for a normal one else it will get jammed in bad. If you remove the mast plug I doubt sand and stuff will get in as the part the strap runs thru will sit flush with the top and have 100kg of downhaul pressure on it.

Whether it can slide off a bit and laterally load the mast tip and thus cause damage, who knows.

For the sake of getting a Fiberspar / Ezzy top plug (for the sail) at cost of like $2, why not just do it.

OTOH dependent upon year and model it could set woefully on a Powerex anyway.
WINDY MILLER
WINDY MILLER
WA
3183 posts
WA, 3183 posts
17 Feb 2012 8:33am


!!!!!!!!!!!!!!!!!!!
gazza
gazza
WA
647 posts
WA, 647 posts
17 Feb 2012 5:20pm
Ummm a Neil Pryde knob, is that the same as a knob on a Neil Pryde......im a little confused
Please Register, or first...
Topics Subscribe Reply

Return To Classic site 😭
Or... let us know if a problem, so we can tweak! 😅