Author Topic: Honda cb550 cylinder head and camshaft sprocket  (Read 257 times)

Offline fourfive

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Honda cb550 cylinder head and camshaft sprocket
« on: May 20, 2022, 04:14:56 PM »
Hi, has anyone got a cylinder head complete with valves and a camshaft sprocket to sell me?
My 1977 k3 was running pretty good but had a weeping head gasket. Did a compression test and had three low cylinders which I tracked down to three leaking exhaust valves. On stripping the head I had six bent valves and a broken valve guide. The teeth on the camshaft pulley are worn to sharp points so it's anyone's guess what's happened in the past.
Thank Ian

Offline Oddjob

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Re: Honda cb550 cylinder head and camshaft sprocket
« Reply #1 on: May 20, 2022, 04:21:30 PM »
Pretty decent one here.

Not the cheapest on Ebay but most of the others show some other type of damage and are not worth buying IMO.

https://www.ebay.co.uk/itm/334436520088?hash=item4dddf85098:g:rRMAAOSwbHFieonJ
Don't play stupid with me, I'm better at it

Offline Johnny4428

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Re: Honda cb550 cylinder head and camshaft sprocket
« Reply #2 on: May 20, 2022, 05:25:28 PM »
Sounds as if the cam chain wouldn’t have been good if the cam sprocket was like that. Maybe been that worn and slack it’s jumped a few teeth or even snapped. Good luck with the build Ian!
1952 Cymoto on Triumph bicycle.
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Offline Bryanj

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Re: Honda cb550 cylinder head and camshaft sprocket
« Reply #3 on: May 20, 2022, 05:57:03 PM »
Typical damage from not heeding the warning when fitting the cam cover and bending valves, probably got sprocket but dont know if i have a spare head.
All 500/550 are identical by the way

Offline fourfive

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Re: Honda cb550 cylinder head and camshaft sprocket
« Reply #4 on: May 20, 2022, 09:56:21 PM »
Pretty decent one here.

Not the cheapest on Ebay but most of the others show some other type of damage and are not worth buying IMO.

https://www.ebay.co.uk/itm/334436520088?hash=item4dddf85098:g:rRMAAOSwbHFieonJ
Thanks for that, I had seen that one but it looks like its got a bit of damage round two of the oil seals but if I can't buy one of the forum I'll go for it
Ian

Offline Oddjob

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Re: Honda cb550 cylinder head and camshaft sprocket
« Reply #5 on: May 20, 2022, 10:18:33 PM »
Damage is not too bad and shouldn't affect the sealing of the pucks IMO.
Don't play stupid with me, I'm better at it

Offline fourfive

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Re: Honda cb550 cylinder head and camshaft sprocket
« Reply #6 on: May 21, 2022, 10:31:05 AM »
Typical damage from not heeding the warning when fitting the cam cover and bending valves, probably got sprocket but dont know if i have a spare head.
All 500/550 are identical by the way
Thanks for the reply, I'll wait to hear from you if you have either part.
Thanks Ian

 

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