robs ss
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I have had an increasingly annoying issue with my Corbin Gunfighter seat.
It is the seat latch. It makes the seat difficult to remove, requiring an amount of jiggling to get the bastard off. Then it doesn't always latch properly when putting the seat back on, requiring thumping and sometimes sitting hard on it to latch properly.
The problem has been getting gradually worse.
I pulled the latch mechanism apart today to see if I could figure out what was wrong.
The problem was three-fold.
1. The sliding latch hard, sharp, square edges which catch and drag on the ratchet post (Christmas tree?)
2. The surface of the ratchet post was "as machined" and not particularly smooth and had hard corners where the profile changed.
3. The underside of the large top plate was not smooth, complete with burs at holes. The latch has to slide across this.
So...
1. smoothed the sliding latch all over and ground a "ramp" with a dremel at the same angle as the ratchet post - then buff/polished it.
2. Filed the edges of the ramps on the ratchet post then sanded and buff/polished it.
3. Sanded all burs of the underside of the large plate and polished it. Also radiused the edge around the large hole as I figured the sharp edge here could damage the ratchet post. (PHOTOS BELOW)
I reassembled the seat using dry spray teflon lube and put the post back on the bike.
Result? Excellent!! The seat almost falls on and latches securely and easily. Also, no more fiddling on removal - comes off cleanly and easily every time.
Wish I had done this earlier - only about an hour's work.
Hope this helps someone else.
Cheers
It is the seat latch. It makes the seat difficult to remove, requiring an amount of jiggling to get the bastard off. Then it doesn't always latch properly when putting the seat back on, requiring thumping and sometimes sitting hard on it to latch properly.
The problem has been getting gradually worse.
I pulled the latch mechanism apart today to see if I could figure out what was wrong.
The problem was three-fold.
1. The sliding latch hard, sharp, square edges which catch and drag on the ratchet post (Christmas tree?)
2. The surface of the ratchet post was "as machined" and not particularly smooth and had hard corners where the profile changed.
3. The underside of the large top plate was not smooth, complete with burs at holes. The latch has to slide across this.
So...
1. smoothed the sliding latch all over and ground a "ramp" with a dremel at the same angle as the ratchet post - then buff/polished it.
2. Filed the edges of the ramps on the ratchet post then sanded and buff/polished it.
3. Sanded all burs of the underside of the large plate and polished it. Also radiused the edge around the large hole as I figured the sharp edge here could damage the ratchet post. (PHOTOS BELOW)
I reassembled the seat using dry spray teflon lube and put the post back on the bike.
Result? Excellent!! The seat almost falls on and latches securely and easily. Also, no more fiddling on removal - comes off cleanly and easily every time.
Wish I had done this earlier - only about an hour's work.
Hope this helps someone else.
Cheers
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