Discovered last year that the stand up blocks on my 1979 Ty's 3/4" track were desperately in need of replacement. All I needed was new sheaves, or so I thought.
Bottom line: the sheaves are riveted in place and apparently not designed to be replaced. Then I discovered that replacement would ring in at just under $200 for two new blocks. Guess Schaefer knows a good thing when they have it.
Bottom line: I drilled out the rivets and replaced both sheaves for a total of about $20. It was easy to do and - after seeing the relative flimsiness of the rivet and thru-pin on the original block - believe my replacement is stronger, as well as now user friendly for future replacement. If I can do it, anyone can do it.
Photos of the assembled block (http://www.schnibbitz.com/block_assembled.jpg) and parts (http://www.schnibbitz.com/block_parts.jpg) can be seen at at the URLs shown.
Replacements parts are listed below.
two 1 1/16" diameter sheaves (Schaefer) @ $7.79 ea (West Marine part # 339267)
two clevis pins, OA=13/16", dia=3/16", 1/16" pin hole (had these, didn't have to buy them)
two aluminum "spacers" OD=5/16", ID=.192, length=1/2", (to be placed through the sheaves) Available at http://www.aluminumspacers.com, (item# AS31-10)
two SS washers OD=7/16", ID=3/16 for extra security and tightness on hole side of clevis pin, Available at http://www.mcfeelys.com, (item# 8FK36)
two cotter pins or rings. I used 3/8 rings.
If anyone is in the same boat - so to speak - the items/sizes/etc. may save someone time.
mjohn
Replacing Schaefer stand up blocks on Typhoon
Moderator: Jim Walsh
Re: Replacing Schaefer stand up blocks on Typhoon
Good Thinking.
Now are you thinking about how to spend the money you saved?
Gary
Now are you thinking about how to spend the money you saved?
Gary
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- Posts: 24
- Joined: Apr 6th, '10, 14:34
- Location: Typhoon Weekender, Versus, #1670, Bethlehem, PA
Re: Replacing Schaefer stand up blocks on Typhoon
Gary,
Money was spent long before it was saved. Remember, we have sailboats.
I liken the savings to drinking diet coke with my Twinkies. A mental offset.
mjohn
Money was spent long before it was saved. Remember, we have sailboats.
I liken the savings to drinking diet coke with my Twinkies. A mental offset.
mjohn
Re: Replacing Schaefer stand up blocks on Typhoon
Nice work mjohn. Wonder if you'd have a clue as to replacing the large spring that makes it a "stand up" block? I have a "lay down" block on my aft deck because the spring has snapped.
Thanks and let's get on with spring and into launch season.
Ron
Thanks and let's get on with spring and into launch season.
Ron
Ron Kallenberg
Old Orchard Beach, Maine
Sailing in Saco Bay, Maine
Old Orchard Beach, Maine
Sailing in Saco Bay, Maine
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- Posts: 24
- Joined: Apr 6th, '10, 14:34
- Location: Typhoon Weekender, Versus, #1670, Bethlehem, PA
Re: Replacing Schaefer stand up blocks on Typhoon
Ron,
That's an interesting problem. If nothing else, Schaefer makes us think. Is that a good thing?
This is probably too simplistic, but, since the spring isn't "attached" to anything, do you think it might be possible to put on a new one in exactly the opposite way you took off the remaining portion of the old one? I could see how it would be a challenge, but, given the savings, it would seem a challenge worth taking.
Then again, how much could a spring cost?
Good luck!
Mike
That's an interesting problem. If nothing else, Schaefer makes us think. Is that a good thing?
This is probably too simplistic, but, since the spring isn't "attached" to anything, do you think it might be possible to put on a new one in exactly the opposite way you took off the remaining portion of the old one? I could see how it would be a challenge, but, given the savings, it would seem a challenge worth taking.
Then again, how much could a spring cost?
Good luck!
Mike