Author Topic: Build thread for my 865  (Read 26714 times)

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ace.cafe

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Reply #135 on: February 28, 2021, 11:11:26 pm
Gremlinsteve,
Not sure if you said you were going to powder coat the clutch & magneto cover.
If you did or if anyone else has do you have to remove the top and bottom needle roller bearings in the clutch cover or can they be left in and just re grease them?
I do not want to oder the special tool unless I have to.
Thanks.
Powder coat baking temps are usually 350°- 450°F. Much over 350°F will probably start to turn the needle bearings to a very light straw color. While I have seen good results from bearing races that have turned light straw without any problem, you might want to specify that they bake the powder coat at 350°F to keep the effect on bearing temper to a minimum.
Or else, remove the bearings.
« Last Edit: February 28, 2021, 11:17:08 pm by ace.cafe »
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Breaker Express

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Reply #136 on: February 28, 2021, 11:14:16 pm
Thanks. I just looked on Hitchcocks and the special tool are not available so I would have to find an alternate way if I have to remove them. Any idea's?
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ace.cafe

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Reply #137 on: February 28, 2021, 11:25:01 pm
I have found good results removing bearings from alloy cases by heating the case in the oven to about 300°F and then quickly turning the case with the bearing facing down on the workbench and tapping on the case and the bearing/race usually just drops out due to difference in thermal expansion of the alloy case vs steel bearing/race. If it is stubborn, you could heat to 320°F and help get it out with a wooden stick.
To reinstall, put the bearing in the freezer in a ziploc bag, and re-heat case up again, remove bearing/race from ziploc bag, and drop the bearing/race into its seat in the case, and let it all cool down.
Re-grease, and Bob's your uncle!

Haven't tried it with a powder coated case, but maybe ask the powder coating guy about whether heating it up would be any problem.
« Last Edit: February 28, 2021, 11:31:09 pm by ace.cafe »
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Gremlinsteve

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Reply #138 on: February 28, 2021, 11:29:57 pm
I agree with ace
Mine are set to go back on in a day or so
I’ll snap pics

I used a semi gloss powder coat


Breaker Express

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Reply #139 on: February 28, 2021, 11:31:01 pm
Thanks for the help. I will be doing this in about 3K miles. I have already powder coated the sprocket cover, heel guard and FI covers. I have a friend that has access to the equipment ;D ;D
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zimmemr

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Reply #140 on: February 28, 2021, 11:33:16 pm
I have found good results removing bearings from alloy cases by heating the case in the oven to about 300°F and then quickly turning the case with the bearing facing down on the workbench and tapping on the case and the bearing/race usually just drops out due to difference in thermal expansion of the alloy case vs steel bearing/race. If it is stubborn, you could heat to 320°F and help get it out with a wooden stick.
To reinstall, put the bearing in the freezer in a ziploc bag, and re-heat case up again, remove bearing/race from ziploc bag, and drop the bearing/race into its seat in the case, and let it all cool down.
Re-grease, and Bob's your uncle!

Haven't tried it with a powder coated case, but maybe ask the powder coating guy about whether heating it up would be any problem.

We use to call removing a bearing like that "fwapping." The first time an old hand showed it to me I couldn't believe it, but I've been removing blind bearings like that for 50 years now and it still works just fine.


Jack Straw

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Reply #141 on: March 01, 2021, 06:47:06 pm
"Heat soak" is a great method.  When I was still living at home I would now and then sneak engine cases into my moms' oven.  Worked great.  She finally busted me one time when she found an entire Ducati crankcase assembly in there.  I was splitting the cases but they were just too darn stuck. It worked nicely and since I put tin drip pan underneath the consequences were not bad.

I've used that temperature differential treatment in many instances even on some guitar restoration work.
« Last Edit: March 01, 2021, 06:49:55 pm by Jack Straw »


Gremlinsteve

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Reply #142 on: March 02, 2021, 08:08:14 pm
Pics


Gremlinsteve

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Reply #143 on: March 02, 2021, 08:46:33 pm
Another


Gremlinsteve

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Reply #144 on: March 02, 2021, 08:47:13 pm
One more


Gremlinsteve

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Reply #145 on: March 02, 2021, 08:50:36 pm
Clutch installed


Jared_Lee

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Reply #146 on: March 03, 2021, 01:52:45 pm
I wish there was a "Like" button I could smash for your picture updates. Looking good, Gremlinsteve!


wachuko

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Reply #147 on: March 03, 2021, 07:57:21 pm
I wish there was a "Like" button I could smash for your picture updates. Looking good, Gremlinsteve!

YES!!
Ride safe!
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Gremlinsteve

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Reply #148 on: March 05, 2021, 12:09:58 am
Some assembly porn


Gremlinsteve

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Reply #149 on: March 07, 2021, 03:08:28 am
Slight set back today
The install was going good till I opened the packaging for the magneto cover and clutch covers

I found both of the where broken. 

So I had to order two more

Then the jugg install went south after I clipped a ring on install and broke it

So I was forced to order a new set of rings from wiseco  for the motor build

Yes. Wiseco is the manufacturer of the pistons used in the s&s 865 kit