Hello again.
More sage advice requested- does anyone know the sixe / thread of the castellated nut at the back of the gearbox that retains the propshaft coupling?
I've gone to change the oil seal which was pouring out oil to find a previous owner had refitted the nut with permanent threadlock and no split pin. Had to split the nut off but no thread gauge handy to check it.
Thnks
Neil
Gear box castellated nut
Re: Gear box castellated nut
Hi, Just checked 5/8" diameter 16tpi.
Bill
Bill
Re: Gear box castellated nut
Thanks Bill - any idea where to purchase as can't find at my stockist or internet sales. appears to be Unified 16 series?
Thanks
Neil
Thanks
Neil
Re: Gear box castellated nut
Hi Neil,
I'll have a look over the week end & see if I have a spare one. How is it that Singer used such an odd thread form in the '30's?
Bill
I'll have a look over the week end & see if I have a spare one. How is it that Singer used such an odd thread form in the '30's?
Bill
Re: Gear box castellated nut
Thanks Bill.
You'd have thought they would have used BSF / UNF off the shelf. Seems no reason to me as 18 TPI in UNF as standard if extra tension needed.
Cheers
Neil
You'd have thought they would have used BSF / UNF off the shelf. Seems no reason to me as 18 TPI in UNF as standard if extra tension needed.
Cheers
Neil
Re: Gear box castellated nut
Hi Neil,
I have found ONE spare in all the 60 years collection (!) & is the only spare I have. It is 1"A/F on the hex but screws perfectly onto the shaft. A bit rusty on the outside but otherwise A1. Let me know if you're interested
kind regards
Bill
I have found ONE spare in all the 60 years collection (!) & is the only spare I have. It is 1"A/F on the hex but screws perfectly onto the shaft. A bit rusty on the outside but otherwise A1. Let me know if you're interested
kind regards
Bill
Re: Gear box castellated nut
Hello Bill
PM'd you.
Cheers
Neil
PM'd you.
Cheers
Neil