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>> Home > Forum > Building Related > Clamp on prop-shaft grease nipple
Clamp on prop-shaft grease nipple
(538 views)
Author Message
cormorant
(Fleet Admiral!)





Forum Posts: 167
10th Nov 2016 09:58  
>> Permalink
mdlbt.com/24265

My part built Perkasa already has the tubes and shafts fitted. Holes have already been drilled in the tubes near the top but no oiler or grease nipple has been fitted so grease keeps oozing out.
Being an old kit the shaft diameter is 3/8" or 9.5mm.
Whilst I have been able to find the items I want, I can't find a larger diameter than 8mm.
Unless anyone knows of a larger diameter I will have to try and drill out the 8mm.
Any suggestions please?
Steve

colinhubbard
(Fleet Admiral!)





Forum Posts: 191
11th Nov 2016 21:43  
>> Permalink
mdlbt.com/24290

Hi there, had similar problem a few years ago. I used 3/8" diameter brass tube approx 1" long filed on one end to fit over hole in shaft tube, then soldered in upright position. This was covered with a small push fit dust cover. Hope this helps.



Fair winds and calm waters,
COLIN.
cormorant
(Fleet Admiral!)





Forum Posts: 167
11th Nov 2016 22:51  
>> Permalink
mdlbt.com/24292

Hi Colin.
One thing I forgot to mention, is that for some reason the holes in the prop tubes are not on the top, but half way round, which gives no clearance for soldering all around the brass tube.
Clamping seems the only option (unless I removed the tubes and start over again - a big job), where I can at least use flexible neoprene pipe for lubrication.
In any event, thanks for the suggestion.
Steve

colinhubbard
(Fleet Admiral!)





Forum Posts: 191
11th Nov 2016 23:22  
>> Permalink
mdlbt.com/24294

Could you sleeve the prop tube then re-drill on the top, using oil tube as guide and drill using a small end mill.



Fair winds and calm waters,
COLIN.
cormorant
(Fleet Admiral!)





Forum Posts: 167
12th Nov 2016 07:53  
>> Permalink
mdlbt.com/24298

Thank you. That's well worth considering.
I'm off to the model boat show today so I may well be able to pick up the bits I need.