Saddlebagrail’s blog

November 7, 2016

Classic Harley Davidson Star hub rebuild with new type quality ball bearing

This time I will show you how to update some worn out old Harley Davidson star hub, in early wheels Harley were using some loose rollers in cage that were running into the case-hardened housing bore, to rebuild them to like new condition, they should be lap and the use of oversize rollers were need, quite a job for a regular guy to save those hubs.
I decide to modify the inner guts only to accept usual ball bearing, meaning that I will not use loose rollers anymore, all internal will be update but external look will stay exactly the same which is quite important when doing update like this.First, here is some pictures of hub and mandrel use during the process
Here you can see a real worn inner hub, inner surface should be really smooth usually when loose rollers were riding into housing 

Small sleeve need to be out before the machining, you can see it against the shoulder

Star hub mount on an custom-made aluminum machining mandrel, press in place with live center from lathe tailstock. Just a light interference of .001 should do it.

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Filed under Other, Random Ideas, Resources, Saddlebagrail's blog, Tech by saddlebagrail

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March 2, 2016

Fly Cut Thor, large fly cutter,the new tool design,time and money saving ,best of both world

Hi to all

You are the among the very first to see those videos and images,completely non-bike related this time ,a change from those who read my tech threads this is something non related to bike,this is mostly for those who work in or around a machine shop or interested in metal removal at it’s best, or basement machinist trying to keep the cost down,to all hope you will enjoy.

 

I have been working on this for years, too long to tell,never had time and everything seem to get in my way,but now it is finally time to get them out so everyone could benefit from this new tool design .

Just click on each small pictures to get to my Photobucket video link to see the tool in action,first one is roughing a 6061 aluminum plate and second one is finishing cut.

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February 12, 2016

Modifying a Camshaft for Panhead or early Shovel using a late shovel camshaft

Modifying a Camshaft for Panhead or early Shovel using a late shovel camshaft

I have been searching for a specific cam for my new project,been running a V-thunder by comp cams in my FLH 82 and simply love it,so I contact Comp Cams to see if they were making models for either Panhead or early Shovel which is not common by many manufacturers.

I never received an answer for Comp Cams,even ask Andrews if they want to make a run for Panhead /early Shovelhead,they said they would but as soon as I ask for same specs as V-Thunder I have never hear back from them.
So I decided to experiment a little ,search a little and found out that they are basically the same as later cams except for the gear and also the cam cover end which is bigger and also longer on later models to timed the advance weight which is not the case with early models.

I tried machining an old Evo camshaft I had on hands ,to see if the parts that run on bushing was hardened deep ,here is a few pics,it was hardened for about .080 in depth,probably induction case hardened,deep enough not to distort the cam too much,but since original outside diameter is 1.000 inch on later models compare to .8125 inch for early models , a difference of .1875(3/16 inch),so no more hardness at the finish size.

I did order some inner bearing sleeve that were .6875 inside diameter with a .9375 outside diameter and around 1 inch long,which is about a 1 /2 inch too long,so I ordered some bearing hardened sleeves form UK,cause I could not find any in Canada.
Basically all you need is there


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Filed under Engine & Transmission, Random Ideas, Resources, Saddlebagrail's blog, Tech by saddlebagrail

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