Author Topic: Reinstalling cam shaft.  (Read 307 times)

Offline billdn

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Reinstalling cam shaft.
« on: June 06, 2022, 10:55:24 AM »
Rebuild underway and now camshaft won't quite go in. I'm aware that lower end of camchain can sometimes be not quite fully on crank end and needs to be "wiggled" about to seat correctly,  well been wiggling for days. Any tips ??
I can get the camshaft in to the point where the last cam lobe will not quite fit under the cam sprocket but it's so close 😠. Persuasion only jams the flanges that bolt to sprocket.

Offline smoothoperator

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Re: Reinstalling cam shaft.
« Reply #1 on: June 06, 2022, 11:15:49 AM »
I put mine in twice because the first time I forgot the washer that fits next to the sprocket, as far as I recall. I remember it being a bit fiddly but not that bad. You don't have the tensioners in??? You could also try pulling up on the chain with the sprocket just to eyeball the situation.
Steve
2017 Triumph Bonneville T100
1977 Honda 400 Four Restored April 2022

Offline billdn

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Re: Reinstalling cam shaft.
« Reply #2 on: June 06, 2022, 12:51:27 PM »
Tensioner out as gives bit more wiggle room, just needs an extra 5mm or so. Turned engine on side to look from below but not a lot to be seen.
Offering up sprocket in chain and can see that it's just short.
Just keep wiggling I suppose.  ;)

Offline billdn

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Re: Reinstalling cam shaft.
« Reply #3 on: June 06, 2022, 02:15:54 PM »
Yahoo sorted  but can we just leave it as " I  am a numpty" 🤪🤐

Offline Matt_Harrington

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Re: Reinstalling cam shaft.
« Reply #4 on: June 06, 2022, 03:13:40 PM »
Go on, 'fess up!  ;)
Matt
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Offline McCabe-Thiele (Ted)

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Re: Reinstalling cam shaft.
« Reply #5 on: June 06, 2022, 06:27:43 PM »
I found it easier to fit the camshaft with the gear loose then when in position fit the bolts - give you some chain slack.
Honda CB400 four super sport

Offline Oddjob

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Re: Reinstalling cam shaft.
« Reply #6 on: June 06, 2022, 06:38:50 PM »
That's the way it should be done Ted, it's too tight otherwise.
Don't play stupid with me, I'm better at it

Offline billdn

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Re: Reinstalling cam shaft.
« Reply #7 on: June 06, 2022, 10:17:20 PM »
Go on, 'fess up!  ;)
Matt

Let's just say what happens in the shed but Ted's way works perfectly. Would helpkif I could tell my left from right.

Offline Matt_Harrington

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Re: Reinstalling cam shaft.
« Reply #8 on: June 07, 2022, 09:50:47 AM »
 ;D
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Triumph 3T - 1946 - Now finished(ish)
Triumph 3T - 1947 (somewhat dismantled!)

Offline McCabe-Thiele (Ted)

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Re: Reinstalling cam shaft.
« Reply #9 on: June 07, 2022, 05:14:24 PM »
Go on, 'fess up!  ;)
Matt

Let's just say what happens in the shed but Ted's way works perfectly. Would helpkif I could tell my left from right.

I was always challenged by the cylinder number order number when the case was inverted - I ended up using a marker pen so I knew what side/end was what when casings are upside down for assembly & split etc.
« Last Edit: June 07, 2022, 05:18:02 PM by McCabe-Thiele (Ted) »
Honda CB400 four super sport

 

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