Re: 1951 (24 Series) Ultramatic Leak
Posted by HH56 On 2014/11/18 13:34:27
Don't believe there is a top cover on any models past 23rd series so everything is from below.
It is not the easiest procedure but you can drill at an angle. Unfortunately the smallest 12" extended length bits are 1/8 and IMO, too large so a smaller bit held in a 9" bit extension is recommended. Also is advisable to dimple the seal so the bit doesn't skid plus hold the bit in the dimple with your free hand as you drill. I believe some have also had success with a Dremel type tool. Don't remember if they mentioned if it was the straight tool or had the 90 degree head. I would be interested in hearing how others have done it but take care to avoid scratching the shaft whichever method you try.
Here is an example of an extension sold by McMaster-Carr. The shank is the same for bits up to 5/32 but you need a different collet for each size bit. With the diameter of the seal, I would go with 3/32 but certainly not much past the .102 you mention. An extension and collet would be around $25.
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It is not the easiest procedure but you can drill at an angle. Unfortunately the smallest 12" extended length bits are 1/8 and IMO, too large so a smaller bit held in a 9" bit extension is recommended. Also is advisable to dimple the seal so the bit doesn't skid plus hold the bit in the dimple with your free hand as you drill. I believe some have also had success with a Dremel type tool. Don't remember if they mentioned if it was the straight tool or had the 90 degree head. I would be interested in hearing how others have done it but take care to avoid scratching the shaft whichever method you try.
Here is an example of an extension sold by McMaster-Carr. The shank is the same for bits up to 5/32 but you need a different collet for each size bit. With the diameter of the seal, I would go with 3/32 but certainly not much past the .102 you mention. An extension and collet would be around $25.
Attach file:
(45.17 KB)
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