sounds like you need a crows foot socket
I use a short (4" long) Blue Point ring spanner, to which I had welded a 9/16" nut on the end opposite to the target nut size. Then, using a 9/16" socket with my torque wrench at 90 deg (no correction necessary), I am able to get enough arc to easily torque the nut.
Slick
Thanks, I believe that you had pointed me to this tool in an earlier part of this thread. But, there just isn't enough room to get the "S" wrench, or any other on the hex. I firmly believe that the barrel has an anomaly.
Fortunately I have two options: 1) Hope that the 12 point 3/8-26 nut that I found will quickly solve my fastening issue, or 2) pull the barrel and hog out the space that the nut rotates in.
Perhaps a Dremel tool would make the job possible, without having to pull the barrel..
Ouch!
This was an Andover part? Have you contacted the supplier?
Yes and yes. I inquired about the availability of a small hex, or small head 12 point fastener for the tight space. Joe wrote me saying that there was plenty of meat on the cylinder and that it's integrity wouldn't be compromised by removing material in the space surrounding the inaccessible fastener.
It's times like these, and there are more than a few, that I identify with Sisyphus...
Did Joe offer any insight in to what the root cause of your issue might be?
Getting hold of Whitworth crows foot might be difficult, but if you took an open ended spanner i thinkits 3/8 grind off its flanks so it can move further within the barrel recess - its only got to torque 25 ft lbs so you can be radical ,then shorten the spanner to about 3or4inches... Find an old largish cheapo socket and cut a slot in it to take the shortened spanner arm , blolb of weld to keep it in place and you now have a crows foot .Surely quicker and easier than taking the barrel off
I have pretty much finished the assembly of a '73 750 engine where I have one of the new AN 850 style barrels; all was going good until I got to the rear 3/8-26 nut that fits up near the carbs. I couldn't find a tool that would grab it; there isn't enough room to fit a wrench and not enough depth to mount a socket.
I could see making a tool by cutting down a socket, boxing the non-business end and welding a handle to the socket, but I have some time and would prefer to purchase an existing tool.
I figure that there must be some number of individuals in this forum that have installed the new AN barrel to their 750s, if so what did you do to tighten this pesky fastener?
I have pretty much finished the assembly of a '73 750 engine where I have one of the new AN 850 style barrels; all was going good until I got to the rear 3/8-26 nut that fits up near the carbs. I couldn't find a tool that would grab it; there isn't enough room to fit a wrench and not enough depth to mount a socket.
I could see making a tool by cutting down a socket, boxing the non-business end and welding a handle to the socket, but I have some time and would prefer to purchase an existing tool.
I figure that there must be some number of individuals in this forum that have installed the new AN barrel to their 750s, if so what did you do to tighten this pesky fastener?