Author Topic: Engine teardown and inspection  (Read 8070 times)

Online Bryanj

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Re: Engine teardown and inspection
« Reply #120 on: January 09, 2021, 03:58:54 PM »
As people used to say "Runs like a Swiss watch"

Offline Oddjob

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Re: Engine teardown and inspection
« Reply #121 on: January 09, 2021, 04:34:39 PM »
You have it correct but, push the first washer down and place the tab washer on top as, you have in your second picture. Then turn the first washer in the groove on the shaft and the tab washer will key in  ;)

With your first washer and the circlips you, must have these facing the correct way.

Just going off my memory here but IIRC the circlips are fitted so that the flat side goes against the gear and the curved side goes against the thrust washer, been quite a few years now since I split a gearbox and curiously the workshop manual makes no mention of the orientation of the circlips, which is odd as you'd expect Honda to have noted that for mechanics. In fact the gearbox section of the manual is virtually non-existent.

Just confirm my memory is correct Trig as it would not only confirm I'm not quite senile yet but help anyone else assembling a gearbox in the future.
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Online Bryanj

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Re: Engine teardown and inspection
« Reply #122 on: January 09, 2021, 05:45:36 PM »
I'm sure there is a bulletin on the US site about circlips but talking about 750

Offline cantarauk

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Re: Engine teardown and inspection
« Reply #123 on: January 09, 2021, 08:26:12 PM »
Thanks Oddjob - Have amended to add this sound advice

Offline cantarauk

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Re: Engine teardown and inspection
« Reply #124 on: January 09, 2021, 08:26:32 PM »
Parts cleaned and ready for assembly


Shaft through bottom half of case with spring and circlip


gear



Thrust washer and large spring






Kick starter ratchet and thrust washer then small spring




Ratchet guide plate on next and push on on to compress the spring. As you looking at the ratchet from above the arm of the ratchet guide need to point down and will lock into the case. A not tricky but will have to keep it there with one hand while doing the rest.


Finally add the washer and then attach the circlip to hold it all in.

Online Bryanj

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Re: Engine teardown and inspection
« Reply #125 on: January 09, 2021, 09:21:48 PM »
Hopfully i have attached a Honda buttetin and it dont throw your work out the window mate

Offline cantarauk

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Engine teardown and inspection
« Reply #126 on: January 09, 2021, 09:27:12 PM »
Thanks Bryan.

I have some very closeup photos so will check all circlips but from memory think they I were all assembled as per the service bulletin


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Offline Oddjob

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Re: Engine teardown and inspection
« Reply #127 on: January 10, 2021, 03:25:28 AM »
LMAO, that confused the f--k out of me. What's the sharp edge and what's the smooth edge?, why not just say, the flat edge and the beveled edge. Sharp edge must be the flat edge as if the bevel is against the thrust washer only the top of the bevel would contact it. Bloody Japanese, can't say anything straight, they have to speak in terminology that most people would struggle to decipher. 
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Online taysidedragon

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Re: Engine teardown and inspection
« Reply #128 on: January 10, 2021, 01:08:19 PM »
😁Just a translation issue. They probably swear at the English language and words that sound the same with different spellings or same word meaning different things.
It sure confuses the hell out of the USA! 🙃
Gareth

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1977 CB400F

Offline cantarauk

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Re: Engine teardown and inspection
« Reply #129 on: January 10, 2021, 02:36:47 PM »
Speaking of translation and presentation could someone please explain this to me so I know what is needed. For the clutch components No 12 is a spacer shown below.



But then how do I know what spacer I require for a 500K1 bike ?



I get the remarks with the greater and lower than the engine serials but how does one know what thickness ?

Offline AshimotoK0

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Re: Engine teardown and inspection
« Reply #130 on: January 10, 2021, 03:28:20 PM »
You need to choose the correct thickness to give the correct clearance, as detailed in the Shop Manual.


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Online Bryanj

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Re: Engine teardown and inspection
« Reply #131 on: January 10, 2021, 03:30:50 PM »
Thicknessess of plates are all the same and in the manual and the different part number is square friction pieces not angular. the shims are not easy to get and you work out total play with no shim and a dti take off the clearance and fit shims to the resulting size, unless you are fitting new parts using the old one works

Offline cantarauk

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Re: Engine teardown and inspection
« Reply #132 on: January 10, 2021, 03:43:15 PM »
Thanks both.

Offline Oddjob

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Re: Engine teardown and inspection
« Reply #133 on: January 11, 2021, 12:12:21 AM »
I had loads of those shims, I ordered what I thought was 2 of each and they ended up being in packets of 10s, so I had 20 of each in the end. They were in a box in the outside shed for years but of course as soon as you want them they go missing, still haven't found them yet. I'm tearing the shed down this year so maybe they'll show up then.
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