Thread: GMF Grinder - Capacitor Mounting Query ( and a hopeful scrounge )

Originally Posted by nadroj

I've got a King Dick.

Jordan

Stop bragging.

Originally Posted by Anorak Bob

Stop bragging.

yeah....ditto

some of us might get upset

Originally Posted by eskimo

did you know that 5/16 bolts and nuts you get at hardware stores are in fact still bsw hex heads!

never ever toss you BSW spanners out

The BSW bolts should have BSW heads otherwise they wouldn't be BSW . Could you pick a 5 deg difference in thread angle on mass produced in China bolts? I would be surprised to find a UNC/SAE bolt with a BSW head tho.

Dean

Originally Posted by Oldneweng

The BSW bolts should have BSW heads otherwise they wouldn't be BSW . Could you pick a 5 deg difference in thread angle on mass produced in China bolts? I would be surprised to find a UNC/SAE bolt with a BSW head tho.

Dean

I am talking 5/16 (or was that 3/8??? not sure now..maybe both) and I think they say the thread size is whitworth...only bsw fits nicely..not too tight to say they're metric or AF heads...metric and af just seem too darn sloppy for me...

so why sell whitworth bolts and nuts but not the spanners..oh thats right either a metric or AF will fit...well thats all terrific if you want rounded off heads...it aint funny when you come across the need to repair something that has been butchered by someone as they only had metric or AF.... I really hate it!!!!

Originally Posted by eskimo

I am talking 5/16 (or was that 3/8??? not sure now..maybe both) and I think they say the thread size is whitworth...only bsw fits nicely..not too tight to say they're metric or AF heads...metric and af just seem too darn sloppy for me...

so why sell whitworth bolts and nuts but not the spanners..oh thats right either a metric or AF will fit...well thats all terrific if you want rounded off heads...it aint funny when you come across the need to repair something that has been butchered by someone as they only had metric or AF.... I really hate it!!!!

Funny stuff with your post. Came up with something else first. What the? Reloaded and it was fine (I think). Something to do with "Thats what it seems like to me Dean".

Anyway, I had not thought that far Eskimo. Whitworth spanners? How true. 5/16" and 3/8" diameter bolts are the most common size I use for this type of bolt. I happen to have a spanner to fit these and have had it for many years. So I did not think of the fact that spanners to fit the bolts are not readily available. What about 1/4" bolts? What size nut for BSW? I only recall 7/16" nuts (AF).

I also hate it when someone has butchered something like that. Usually from using an adjustable spanner I think. They have their place but it is not with hard to undo bolts/nuts.

My lathe (Nuttall) happens to have an original BSW bolt holding the swarf cover at the back of the cross slide. Original BSW size as opposed to original Nuttall bolt. I doubt it is a Nuttall bolt. There is meant to be two but the other one is missing, still .

My bandsaw is made in Taiwan and is made with AF bolts. The adjustment bolt for the blade guide bearings suits a 12mm spanner best but the locking nuts are 9/16".

I usually use the best fitting spanner unless I know what size it is.

Dean

Originally Posted by nadroj

I'm always wary of old capacitors, transformers, fluoro ballasts and the like, in case they might contain a chemical called Polychlorinated biphenyl, or PCB, which was used for its excellent insulation property. It's reportedly a cumulative toxin and not nice stuff.

Jordan

The Ducon capacitor pictured does indeed contain PCB. If you decide to replace it, you are required by law to dispose of it via a proper channel, and on no account must it be simply consigned to the local garbage. Check with the EPA, if your area has an annual chemical cleanout day, that would be an easy solution. Be sure to tell them it is PCB.

Chas.

Originally Posted by Oldneweng

Funny stuff with your post. Came up with something else first. What the? Reloaded and it was fine (I think). Something to do with "Thats what it seems like to me Dean".

i made some alterations added stuff and deleted some...apologies for any confusion

Originally Posted by eskimo

i made some alterations added stuff and deleted some...apologies for any confusion

Confused? Who, me? I wasn't confused!

Cheers

Dean

Originally Posted by Chas

The Ducon capacitor pictured does indeed contain PCB. If you decide to replace it, you are required by law to dispose of it via a proper channel, and on no account must it be simply consigned to the local garbage. Check with the EPA, if your area has an annual chemical cleanout day, that would be an easy solution. Be sure to tell them it is PCB.

Chas.

Thank you for the warning and advice Chas.

I have three GMF grinders, There's a good chance the others are Ducon-ed.

Bob.

Originally Posted by Oldneweng

The BSW bolts should have BSW heads otherwise they wouldn't be BSW .
Dean

The converse doesn't necessarily hold true though. If you are lucky/unlucky enough to have to work on Morris/MG engines prior to about 1955 your Whitworth spanners will fit the fasteners just fine. However, all the threads are metric. JAMHIKT!

At one stage I owned a 1952 TD MG. This was built about the time when the British Motor Corporation was formed by amalgamating Morris Motors and the Austin Motor Company, and there was some mixing of components produced by the two parent companies. Body and gearbox bolts were BSW/BSF, engine fasteners were metric threads but with with BSW/BSF heads, the back axle, a product of the old Austin Motor Co. was UNC/UNF, pipework was BSP, and, of course, all the electrical threads were BA. My 1937 and 1947 Morris 8s also had the metric engine with Whitworth sized fastener heads. I have a fairly varied collection of spanners!

Frank.

Added later: In original post I said TF MG. Being 1952 It was, of course, a TD MG - hit the wrong key.

F S

Originally Posted by franco

At one stage I owned a 1952 TF MG. This was built about the time when the British Motor Corporation was formed by amalgamating Morris Motors and the Austin Motor Company, and there was some mixing of components produced by the two parent companies. Body and gearbox bolts were BSW/BSF, engine fasteners were metric threads but with with BSW/BSF heads, the back axle, a product of the old Austin Motor Co. was UNC/UNF, pipework was BSP, and, of course, all the electrical threads were BA. My 1937 and 1947 Morris 8s also had the metric engine with Whitworth sized fastener heads.

Somewhere I read that WWII could be boiled down to the incompetency of and interference by hitler versus the problems with british manufacturing.

The Brits had some interesting design ideas for cars, mind you the Germans came up with some strange stuff. Just look at the beetle/bug. I operated a centreless grinder at times that had the motor on one side of the control wheel, the gearbox for it on the other side. The control wheel is a second grinding type wheel which does not grind (soft compound) but runs slow to control the workpiece and feed it thru. This was made by the Hartex corporation which was a subsidery of Volkwagon, so I was told. It was manufactured in 1936. Just think about that.

Dean

Air-cooled, flat 4 rear-engined beetle-shaped cars were made in Czechoslavakia before Volkswagen existed.
VW made a settlement payment to Tatra in the 1960s.

Jordan

A couple of pics of the difference between Whitworth and British Standard Whitworth
They are both 3/4"

Phil
IMG_3974.jpg IMG_3975.jpg IMG_3976.JPG