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Transmission shift cam positions?

Clutch, Transmission, Drive Chain, Sprockets
DianneB
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Joined: Tue Jun 30, 2015 5:29 am
Location: Manitoba, Canada

Transmission shift cam positions?

Post by DianneB » Sun Aug 23, 2015 3:49 pm

I am not sure that my '67 C77 is shifting properly but I can't find any pictures or illustrations of where the cam (on the shift drum) and detent roller are supposed to be in each gear.

Has anybody seen such a thing?

LOUD MOUSE
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Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Re: Transmission shift cam positions?

Post by LOUD MOUSE » Sun Aug 23, 2015 4:21 pm

If you can see the part which has the roller you can find neutral then count the area of the drum and when there is 1 on a side and 3 on the other you can figure the gear you will be in when you move the drum. ...............lm
DianneB wrote:I am not sure that my '67 C77 is shifting properly but I can't find any pictures or illustrations of where the cam (on the shift drum) and detent roller are supposed to be in each gear.

Has anybody seen such a thing?

DianneB
honda305.com Member
Posts: 287
Joined: Tue Jun 30, 2015 5:29 am
Location: Manitoba, Canada

Re: Transmission shift cam positions?

Post by DianneB » Sun Aug 23, 2015 6:05 pm

LOUD MOUSE wrote:If you can see the part which has the roller you can find neutral then count the area of the drum and when there is 1 on a side and 3 on the other you can figure the gear you will be in when you move the drum. ...............lm
[/quote]

1 what? and 3 what?

Where is the roller in neutral?

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Re: Transmission shift cam positions?

Post by LOUD MOUSE » Sun Aug 23, 2015 6:07 pm

Do you have the clutch cover off?. ........................lm
DianneB wrote:
LOUD MOUSE wrote:If you can see the part which has the roller you can find neutral then count the area of the drum and when there is 1 on a side and 3 on the other you can figure the gear you will be in when you move the drum. ...............lm
1 what? and 3 what?

Where is the roller in neutral?[/quote]

DianneB
honda305.com Member
Posts: 287
Joined: Tue Jun 30, 2015 5:29 am
Location: Manitoba, Canada

Re: Transmission shift cam positions?

Post by DianneB » Sun Aug 23, 2015 6:50 pm

LOUD MOUSE wrote:Do you have the clutch cover off?. ........................lm
[/quote]

Not at the moment - trying to diagnose 'by feel' - don't want to pull the cover unless needed.

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Re: Transmission shift cam positions?

Post by LOUD MOUSE » Sun Aug 23, 2015 7:02 pm

The shift pattern is 1 down and 3 up
Have fun. ............lm
DianneB wrote:
LOUD MOUSE wrote:Do you have the clutch cover off?. ........................lm
Not at the moment - trying to diagnose 'by feel' - don't want to pull the cover unless needed.[/quote]

DianneB
honda305.com Member
Posts: 287
Joined: Tue Jun 30, 2015 5:29 am
Location: Manitoba, Canada

Post by DianneB » Mon Aug 24, 2015 12:11 pm

Okay, checked out my transmission and it is shifting properly but, since I split the case last week, I have lost my neutral switch. Everything is working down to the connector on the neutral switch wire but the switch isn't closing.

I can't find anything in the manuals about how the neutral switch is activated and the screws holding the neutral switch in place are VERY tight and will have to be broken free with a punch.

WHAT activates the neutral switch? What could cause it to stop working? (I really don't want to open the bottom end again!)

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