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Author Topic: Countershaft clips and washers  (Read 203 times)

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Offline The Gurg

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Countershaft clips and washers
« on: January 11, 2019, 12:34:57 pm »
1975 Honda CB750-K5 33k miles

Hey wanting to make sure I get the clips and washers on the countershaft were oriented right. It’s only spins at thousands of RPMs so I figure doesn’t need to be perfect... Noticing there is a bubble and flat side to washers and clips. Assuming bubble side points to the end of the shaft that is closest. I get some orientation clues from wears lines.

I took a ton of pictures but am repeatedly having some part orientation questions. Any good resources, or do I just use common sense? Using mark Paris’s book, the factory manual, the Honda chopper engine diagrams, and the Peter Anderson YouTube videos.

Offline flybox1

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Re: Countershaft clips and washers
« Reply #1 on: January 11, 2019, 01:45:37 pm »
for the clips....rounded edge toward the shaft-end/thrust washer

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Offline scottly

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Offline The Gurg

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Re: Countershaft clips and washers
« Reply #3 on: February 26, 2019, 11:09:13 am »

So I think what FlyBox1 told me is the exact opposite of what I should do. I don’t know if he misspoke, didn’t understand, or perhaps I’m wrong. Posting to double check. The flat edge needs to face toward the thrust washer. To brake against the force of the moving gear. See the short YouTube video which explains the correct orientation of a chamfered circlip.

Offline The Gurg

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Re: Countershaft clips and washers
« Reply #4 on: February 26, 2019, 11:11:21 am »
Transmission diagram for reference.

Offline The Gurg

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Re: Countershaft clips and washers
« Reply #5 on: March 16, 2019, 12:21:40 pm »
Finished putting the countershaft together and starting on the main shaft and the first thing I see is a Honda installed circlip that oriented the opposite way that I expect. The video (and I talked to a mechanic at Cycle X) both seemed to say that the flat edge faces away from the gear force of the gear that moves or slides. And so the chamfered edge faces toward the gear sliding toward it.

Can someone help clarify? Seems like Honda just put the flat side against the washer regardless of gear force.

See photo of Honda installed circlip untouched since 1974. Chamfered side facing the camera.

Online bryanj

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Re: Countershaft clips and washers
« Reply #6 on: March 16, 2019, 12:53:32 pm »
If it was vital Honda would have said so inthe workshop manual
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Offline HondaMan

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Re: Countershaft clips and washers
« Reply #7 on: March 16, 2019, 05:59:24 pm »
In general: orient the rounded side of the clip/shim/spacer toward the component that will spin on its surface.
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Offline The Gurg

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Re: Countershaft clips and washers
« Reply #8 on: March 16, 2019, 08:42:31 pm »
HondaMan, trying to digest/unpack your comment. Sounds like your saying the circlips chamfered edge faces the thrust washer.

So in the diagram, what I have labeled in red:
A. Chamfered edge is on the left
B. Chamfered edge is on the right
C. Chamfered edge is on the left
D. Chamfered edge is on the right
E. Chamfered edge is on the left

That seems to goes against what the linked video says at the 30 second mark, but is more congruent with what I’m seeing Honda did in my engine.

 

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