How much play in forestay linkage with Johnson Lever?

Aug 7, 2011
496
MacGregor 26S Lakeland, FL
I have a Johnson Lever under the forestay. Followed after Sumner's example somewhat. I have the original forestay, not upgraded to thicker wire.
So the question I have, somewhat directed toward Sumner, but also open to anyone else to whom this applies, is how much "twisty" play is there in the linkage of the Johnson Lever connections? With the original setup, there was only one connection, only one pin. Not too much slop in that one connection.
Now, with the Johnson Lever, the whole furler drum twists a lot when I try to furl or unfurl the headsail.
So, thru what angle of twist is it acceptable? Should i drill out the chainplate and go up to a larger pin or something?
 

Sumner

.
Jan 31, 2009
5,254
Macgregor & Endeavour 26S and 37 Utah's Canyon Country
.. how much "twisty" play is there in the linkage of the Johnson Lever connections? With the original setup, there was only one connection, only one pin. Not too much slop in that one connection.
Now, with the Johnson Lever, the whole furler drum twists a lot when I try to furl or unfurl the headsail.
So, thru what angle of twist is it acceptable? Should i drill out the chainplate and go up to a larger pin or something?
Not sure how much, when you say twists a lot? The last we took the boat out was in June so nothing is fresh in my mind at this point but I've never thought there was excessive twist in the whole furler unit. Not sure what to tell you without being able to see it in person. I don't think a larger pin will help. I went larger but only due to the increase in wire size.

Maybe post some pictures?

Sumner
==============================================================
1300 miles to The Bahamas and Back in the Mac...
Endeavour 37 Mods...

MacGregor 26-S Mods...http://purplesagetradingpost.com/sumner/endeavour-main/endeavour-index.html
Mac Trips to Utah, Idaho, Canada, Florida, Bahamas
 
Mar 20, 2012
3,983
Cal 34-III, MacGregor 25 Salem, Oregon
which johnson lever did you get?... if the pin is too small for the chainplate hole it will have more room for the rotational "play" to be excessive.... the 14-205 has 1/4" pins and the 14-210 has 5/16" pins.... I have the 14-210 and it has no unnecessary twisting.
IIRC, when I was doing my research to see which one I wanted/needed, I remember reading that some macs had the stemhead chainplate drilled for a 1/4" pin, and others were drilled for 5/16".
the cam lever itself is build solid and without any rotational slack in it so it would have to be coming from the pin connection.
and a properly tensioned headstay will also help minimize the slack...
 
Last edited:

Sumner

.
Jan 31, 2009
5,254
Macgregor & Endeavour 26S and 37 Utah's Canyon Country
...I remember reading that some macs had the stemhead chainplated drilled for a 1/4" pin, and others were drilled for 5/16".....
Just for the record mine was drilled for the 1/4 inch pin and I enlarged it for the 5/16 pin,

Sumner
=====================================================================
1300 miles to The Bahamas and Back in the Mac...
Endeavour 37 Mods...

MacGregor 26-S Mods...http://purplesagetradingpost.com/sumner/endeavour-main/endeavour-index.html
Mac Trips to Utah, Idaho, Canada, Florida, Bahamas
 
Aug 7, 2011
496
MacGregor 26S Lakeland, FL
Agree that the twist is likely from the two pins only, top and bottom...
I'll have to see what is required to maximize pin size for the holes. What I remember is a definite difference in pin sizes, though, relative to hole size. I'd be willing to expect that to be the issue until I can get all matching pin & hole sizes. Will report back once I've measured it all. Thanks!