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Vintage Honda Owners,
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CB160 Spun Camshaft Sprocket

 
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SteveAllenHonda
honda305.com Member


Joined: 10 Aug 2018
Posts: 4
Location: Pasadena California

PostPosted: Fri Jul 05, 2019 3:36 pm    Post subject: CB160 Spun Camshaft Sprocket Reply with quote

Hello All,
Went to purchase a Red 1969 CB160-been sitting many years.Hmmm-kicked over,good compression.Took it home,new battery,carb clean,points etc.Won't run.No spark-valves not
actuating.Suspected a broken camshaft chain.Engine apart and I see nice chain connected-
spun sprocket! I can see no marks of how to orient the correct degree if I were to get it welded in lieu of just purchasing another one.Have any of you encountered this?Also-I see no splines or evidence of how the sprocket was affixed in the first place!
Inquiring Minds want to know.
Thanks, Eric
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G-Man
honda305.com Member


Joined: 25 Mar 2009
Posts: 5552
Location: Derby, UK

PostPosted: Sat Jul 06, 2019 3:05 am    Post subject: Re: CB160 Spun Camshaft Sprocket Reply with quote

I think they are just shrunk on. I have one with a loose sprocket, too. Should be able to copy the alignment from another sprocket/cam.

G

SteveAllenHonda wrote:
Hello All,
Went to purchase a Red 1969 CB160-been sitting many years.Hmmm-kicked over,good compression.Took it home,new battery,carb clean,points etc.Won't run.No spark-valves not
actuating.Suspected a broken camshaft chain.Engine apart and I see nice chain connected-
spun sprocket! I can see no marks of how to orient the correct degree if I were to get it welded in lieu of just purchasing another one.Have any of you encountered this?Also-I see no splines or evidence of how the sprocket was affixed in the first place!
Inquiring Minds want to know.
Thanks, Eric

_________________
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F
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SteveAllenHonda
honda305.com Member


Joined: 10 Aug 2018
Posts: 4
Location: Pasadena California

PostPosted: Sat Jul 06, 2019 10:49 am    Post subject: Reply with quote

Thank You for the reply.That makes sense-shrunk on.Wonder how many have rotated slightly over the years leading owners with timing problems and no easy way to ascertain the cause!
Eric
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