it seems that once the end cap on Smiths tach gearbox drives begins to weep oil, it is only a matter of time before the cap falls out and the internals are lost.
Here is my try at preventing the tach drive gear box from spilling it's guts on the road ... again
First drill two #57 (0.045") holes diametrically opposite in the edge of the housing. The cap must be underflush by a minimum of 0.062".
View attachment 15791
Next make a 'V' shaped wire clip from 0.040" music wire.
View attachment 15792
Then, snap wire clip into holes ...
View attachment 15793
I warmed the housing and flowed blue Loctite into the cap seam, removing the excess. This has cured the oil weep.
PM me with your snail mail address and I will post you a 6 inch length of 0.040 " music wire.
For those who may be looking for a newly made replacement for the Smiths Gearbox, Google Speedograph-Richfield in the UK. Their drives appear to be a well made replica replacement.
Slick
Here is my try at preventing the tach drive gear box from spilling it's guts on the road ... again
First drill two #57 (0.045") holes diametrically opposite in the edge of the housing. The cap must be underflush by a minimum of 0.062".
View attachment 15791
Next make a 'V' shaped wire clip from 0.040" music wire.
View attachment 15792
Then, snap wire clip into holes ...
View attachment 15793
I warmed the housing and flowed blue Loctite into the cap seam, removing the excess. This has cured the oil weep.
PM me with your snail mail address and I will post you a 6 inch length of 0.040 " music wire.
For those who may be looking for a newly made replacement for the Smiths Gearbox, Google Speedograph-Richfield in the UK. Their drives appear to be a well made replica replacement.