GX200 bearing size

[r_chez_08]

Hi,
I was possibly going to sleeve my clone's crank up to 1" with a shrink fit tube.
How big is the bearing on a gx200/clone on the crank? I want to know if a 1" shaft will fit through.
Thanks
Rob
Edit: This is what I was going to do:
http://weldingweb.com/showthread.php?p=576376#post576376

 

[Russ2251]

If you are "upping" the pto size from .750 to 1", than bearing size should not matter.
All work is done externally.

 

[Doc Sprocket]

If I'm reading this correctly, the problem is this:

If the OP modifies the shaft to 1" while the crankshaft is out of the block, then re-assembly is impossible if the bearing won't fit over the PTO. No?

I think a simple measurement should answer this.

 

[devino246]

.9825 +/-.002

 

[Russ2251]

A simple sleeve is all that is needed.
No disassembly or welding is required.

 

[r_chez_08]

Crap. Yeah you got it right there ts, i was planning to lathe my damaged crank down to 1/2" then put a sleeve that would be heated up then put on (interference fit, .500 crank, .496 sleeve) and have a 1" shaft for my comet 40 driver to go onto. However as
Honda made their bearings just under an inch, I cannot do this. Instead I will probably go from 1/2" to 3/4" with a shrink sleeve, then make a removable adapter from 3/4" to 1" for the tc.
http://weldingweb.com/showthread.php?p=576183#post576183

 

[r_chez_08]

A simple sleeve is all that is needed.
No disassembly or welding is required.

See here. This is not the case for me

 

[Russ2251]

Pic of damage? Perhaps I missed it.

 

[r_chez_08]

See post no. 27 in link
In future I will be buying genuine hondas...

 

[Doc Sprocket]

In future I will be buying genuine hondas...

That may not be any different.

 

[r_chez_08]

True.

 

[Russ2251]

Holy crap...

 

[devino246]

Holy crap...

It takes alot to get Russ to say that

 

[Bluethunder3320]

i was going to weld on my HM80 crankshaft then get it lathed back down, but the machinist/welder i talked to said its not that easy. i could pay him $400-500 to do it... NO.

he did something similar to a harley davidson crankshaft... but by hand with a file... because it didnt fit in the lathe. i cant imagine how much that costed!

i ended up buying a new crankshaft for $100....

 

[Russ2251]

Being the perfectionist that I am...
I would just bite the bullet and get another crankshaft.
Key is supposed to prevent this from happening.

 

[Doc Sprocket]

I think I have to agree. There is a time to DIY-yer-butt-off, and a time to just "do the deed". I think this is one of those times you oughta check the duct tape at the door...

 

[Russ2251]

If we're going to take our hobby seriously, we have to do things the right way.

 

[r_chez_08]

Lol. What happened is my tc and adapter fell off, whilst the engine was running, because the crank bolt fell out. I was going to lathe it down to 1/2" and put a sleeve that I would heat up and shrink onto the shaft. Wouldnt this work?
There is no harm in trying, if the crank is dead already.

 

[landuse]

I may be opening a can of worms here, but why don't you just get another keyway cut on the opposite side of the shaft? (or do you want a 1" crank) Will the crank shaft not function correctly if this is done? Will the current damage weaken it in any way?

 

[TorqueRanger]

What about just buying another crank ???