Possibly my first screw up?

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Norcoastal

Norcoastal

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Aug 21, 2016
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I believe that the intermediate shaft had broken off in my engine case.

The case came this way and I appears as if the end is broken in it. I looked at my parts manual and there doesn’t seem to be a sleeve around the shaft so I assumed that it must have broken off.

I heated it up and started to try and chisel it out when I stopped and said f#$k, I better ask someone who knows more than me.

I’ve been known to make things worse. I can see it now, here’s an engine case that’s been around for 47 years and I screw it up in a week.

Can someone please tell me if this is a sleeve or a broken shaft. And if it’s a sleeve and I screwed up, I’m going to be pretty mad at myself.

Take a look.

Possibly my first screw up?


Possibly my first screw up?


Possibly my first screw up?


Possibly my first screw up?
 
Now that I’m looking at the manual again, there appears to be a shaft bushing. I think I just hacked the bushing up pretty good.

Advice?

Damn...
 
Norcoastal said:
Now that I’m looking at the manual again, there appears to be a shaft bushing. I think I just hacked the bushing up pretty good.

Advice?
Click to expand...

Local machinist in Tacoma bushed this hole and fit new shaft. Maybe you can send it to him?
Doug
 
Last edited by a moderator:
Yup, I did it, I hacked up the bushing, BUT I think the bushing has snapped off because it appears to be smaller than this one I found on eBay.

Possibly my first screw up?
 
Last edited:
Warm the case and using a blind puller, pull the bushing and renew. Don't fret, it likely needed renewing anyway.

Slick
 
Norcoastal said:
Yup, I did it, I uptake bushing, BUT I think the bushing has snapped off because it appears to be smaller than this one I found on eBay.

Possibly my first screw up?
Click to expand...
Think that is a camshaft bush. I would heat case with heat gun or on gas grill and should fall out. Then freeze new one and heat case to install. Could of been worse. Hide the hammer & chisel and forget where it is.
 
Beach said:
Think that is a camshaft bush. I would heat case with heat gun or on gas grill and should fall out. Then freeze new one and heat case to install. Could of been worse. Hide the hammer & chisel and forget where it is.
Click to expand...

Yes, great advice. Thanks
 
Does anyone have any idea the size of this bearing?

I’m looking at Blind Pullers and I think the smallest size of the one I’m looking at is 10mm.
 
Beach said:
If you can get to both sides you don't need the blind puller.
Click to expand...

I can get to both sides, but that’s where I chewed up the bushing with a hammer. How can I get it out without causing damage?

Although, I just bought a cheap puller off eBay, I’m sure I’ll find a good use for it.
 
Norcoastal said:
I can get to both sides, but that’s where I chewed up the bushing with a hammer. How can I get it out without causing damage?

Although, I just bought a cheap puller off eBay, I’m sure I’ll find a good use for it.
Click to expand...
Heat the case nice and hot. Find a socket correct size(bit smaller) for bush and tapbush out. Heat is the secret.
 
Determine what is the proper bush. Buy one from a reputable Norton parts dealer. Take all to a machine shop to fix. You don't
have the skill set to do this work.
 
Can someone confirm that that is in fact a bearing and that it can/should be removed and replaced?

I’m being extra cautious because I don’t want to damage it more.

Thanks
 
lazyeye6 said:
Determine what is the proper bush. Buy one from a reputable Norton parts dealer. Take all to a machine shop to fix. You don't
have the skill set to do this work.
Click to expand...


Appreciate the vote of confidence and you’re probably 100% correct t.

I want to learn and the best way to do that is to do it. I may have to buy a bearing press. I’ve needed one for a while and this may be the reason to get one.

I mean, how hard can it be to remove a bearing and replace it with a new one?
 
Buy yourself a Christmas/solstice/holiday-of-choice present and buy the Mick Hemmings DVDs on Heavyweight Twin Engine Restoration and Gearbox Servicing. You will have a much better idea after watching the expert. It's money well spent.

Almost every bearing and bushing on a Commando uses heat. Most drop out when the aluminum is heated to a high enough temperature. The oven works great despite all the stories people have about wives bitching. Just clean it up well before putting it in the oven. Buy a good heat gun. It's another life saver.
 
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