X chainplate bolts
Posted: Sat Nov 22, 2014 1:10 pm
being metric, I need to know the nut size on the chain-plates? 2000 X
regards
regards
Chain plate nuts on Last Flight (02X) are 14 mm.
Ken
MacGregorSailors.com
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X chainplate bolts
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Re: X chainplate bolts
Posted: Mon Nov 24, 2014 3:23 pm
Re: X chainplate bolts
Posted: Tue Nov 25, 2014 12:32 am
Not imperial? - other mast etc stuff is. I'll take metric sockets down next time and have a try.
cheers
cheers
Re: X chainplate bolts
Posted: Tue Nov 25, 2014 9:54 pm
Take a 9/16 socket as well.
Re: X chainplate bolts
Posted: Wed Nov 26, 2014 7:25 pm
3/8" bolt/nut - 9/16" wrench/socket
Re: X chainplate bolts
Posted: Thu Nov 27, 2014 7:10 am
I was gonna say... I didn't think there were any metric bolt heads on a Mac
Re: X chainplate bolts
Posted: Thu Nov 27, 2014 7:46 am
Previous poster talked about Imperial - this is Whitworth, right? I would be really impressed if this was actually on the boat.
I remember a car I had from the 80's, a Mark VII - it seemed to have a mix of SAE and Metric. Kind of try the wrenches till they fit.
I remember a car I had from the 80's, a Mark VII - it seemed to have a mix of SAE and Metric. Kind of try the wrenches till they fit.
Re: X chainplate bolts
Posted: Thu Nov 27, 2014 10:34 am
I think as "Imperial" meaning inches.
I'd be surprised too to find British Standard Whitworth, which is very rare, and the thread profile is different than the Unified that we use in North America, but in some cases where the tolerances are wide and in the right direction, one will fit on the other, the commonly encountered cross-fit, known to photographers, being a camera tripod socket.
Referring to the screw head and nut measurements, and not the threads themselves, the 14mm socket is close to the the 9/16" screw head and nut size, so will do the job too.
It's a nice feature of the Mac that they stuck with one system- Imperial inch fasteners ("Unified"), (and most other dimensions for parts I've encountered) and used the same sizes repeatedly where possible, for less switching of tools.
The motor might make it a different story. And spark plugs are a mix of both, metric threads and inch hex head, unless that has changed recently.
Yeah, a mixture of both systems almost doubles the number of tools on hand. I think Canada is one of the worst places for this. In the early 80's I took advantage of a Canadian government programme where they paid half for precision measurement tools in preparation for the changeover to metric… And then they didn't make the changeover, allowing the chronic financial burden to continue for decades. I still have them, shiny and new, rarely used, and taking up space. But it does make us fluent in both systems.
I'd be surprised too to find British Standard Whitworth, which is very rare, and the thread profile is different than the Unified that we use in North America, but in some cases where the tolerances are wide and in the right direction, one will fit on the other, the commonly encountered cross-fit, known to photographers, being a camera tripod socket.
Referring to the screw head and nut measurements, and not the threads themselves, the 14mm socket is close to the the 9/16" screw head and nut size, so will do the job too.
It's a nice feature of the Mac that they stuck with one system- Imperial inch fasteners ("Unified"), (and most other dimensions for parts I've encountered) and used the same sizes repeatedly where possible, for less switching of tools.
The motor might make it a different story. And spark plugs are a mix of both, metric threads and inch hex head, unless that has changed recently.
Yeah, a mixture of both systems almost doubles the number of tools on hand. I think Canada is one of the worst places for this. In the early 80's I took advantage of a Canadian government programme where they paid half for precision measurement tools in preparation for the changeover to metric… And then they didn't make the changeover, allowing the chronic financial burden to continue for decades. I still have them, shiny and new, rarely used, and taking up space. But it does make us fluent in both systems.
Re: X chainplate bolts
Posted: Sun Nov 30, 2014 10:12 am
All hex-head bolts on the Mac are either 1/4" (which uses 7/16" wrenches, or 3/8" (which uses 9/16" wrenches).
Re: X chainplate bolts
Posted: Mon Dec 01, 2014 5:23 am
Sorry Bill, We here at Macgregor forums prefer to take simple oblivious things and make them as complicated and abstract as possible in order to keep the thread going as long as possible................LOL