TREE
08-03-2006, 04:20 PM
It’s quick, it’s dirty…… and it’s cheap.
Got a drill press ? ....... you can do this !
Cut a piece of hardwood about 1.75 to 2 inches long from a broom handle etc, ( it has to be larger than 18mm or 11/16” diameter. )
Sand the ends at 90 degs so it’s flat.
Centre drill it accurately with a 5/16” drill ( this is the only hard part ).
If you are slightly off no sweat, the last sanding step will correct this.
Trap it on a long 5/16 allan bolt ( has a smaller head ).
Wrap some electrical tape around the threads where it will be chucked by the drill press. Do not tape more than 1 revolution.
( leaves a bump ) cut one turn, then apply a 2nd piece of tape over 1st piece one more turn.
With the head pointed down lock it in your drill press.
Use sandpaper on a true vertical block to sand it down as it turns.
I used a machinist's V block with 180 grit sandpaper.
Push the paper in slowly, shave a bit off at a time.
This will true the wood around its true centre.
Do not use too much side pressure.
Around 18mm diam it will start to slide through your clutch plate.
Try to stop sanding as soon as you can get a snug press fit.
Redrill the centre hole with a 23/64 ” bit .
Now the clutch pushrod will fit snugly through the wood.
Here is a photo of the finished tool.
……. and it worked perfectly !
http://img395.imageshack.us/img395/3052/centretool33gu.jpg
Got a drill press ? ....... you can do this !
Cut a piece of hardwood about 1.75 to 2 inches long from a broom handle etc, ( it has to be larger than 18mm or 11/16” diameter. )
Sand the ends at 90 degs so it’s flat.
Centre drill it accurately with a 5/16” drill ( this is the only hard part ).
If you are slightly off no sweat, the last sanding step will correct this.
Trap it on a long 5/16 allan bolt ( has a smaller head ).
Wrap some electrical tape around the threads where it will be chucked by the drill press. Do not tape more than 1 revolution.
( leaves a bump ) cut one turn, then apply a 2nd piece of tape over 1st piece one more turn.
With the head pointed down lock it in your drill press.
Use sandpaper on a true vertical block to sand it down as it turns.
I used a machinist's V block with 180 grit sandpaper.
Push the paper in slowly, shave a bit off at a time.
This will true the wood around its true centre.
Do not use too much side pressure.
Around 18mm diam it will start to slide through your clutch plate.
Try to stop sanding as soon as you can get a snug press fit.
Redrill the centre hole with a 23/64 ” bit .
Now the clutch pushrod will fit snugly through the wood.
Here is a photo of the finished tool.
……. and it worked perfectly !
http://img395.imageshack.us/img395/3052/centretool33gu.jpg