Author Topic: Dear God! tear down again???  (Read 1053 times)

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Offline 70cbk0

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Dear God! tear down again???
« on: April 29, 2011, 04:59:11 PM »
Got the engine back together mostly, then I noticed this (pic). I never noticed what is called the "roller collar", was still in the old cam tensioner wheel. (I bought a new tensioner and lower wheel). I can't believe I missed it. I don't remember the new wheel being that loose on the lower pin when I put it together. But I don't think the new rubber wheel would come with that part already in it, would it? But I stuck a chop stick down through the top and it DOES seems a bit loose on the shaft!!! DAMN!
 Anybody else make this mistake? So, I guess I have to tear it apart and check. QUESTION- will the head gasket be ok? I've never run this engine. Just torqued stuff down and started to set the valve rockers when I noticed the problem. I'm thinking the 0-rings should all be ok to be re-used, but what about the head gasket?      Man I feel stupid!!!!!!!
1970 CB 750K0
1969 CB 750K0
1966 CB77 Superhawk
1982 Honda XR200R

Offline cookindaddy

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Re: Dear God! tear down again???
« Reply #1 on: April 29, 2011, 05:11:50 PM »
Ouch.
I don't know the answer to your question (do you have to tear it apart again?)
But I feel your pain.
Perhaps if you could wedge a stainless steel chopstick in place to act as a substitute "roller collar"? (just kidding!)
George with a black 78 CB750K (in Lion's Head, Ontario, Canada)

Offline 70cbk0

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Re: Dear God! tear down again???
« Reply #2 on: April 29, 2011, 05:26:59 PM »
I know, OUCH is right!!! And we've got rides to attend!
1970 CB 750K0
1969 CB 750K0
1966 CB77 Superhawk
1982 Honda XR200R

Offline Gordon

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Re: Dear God! tear down again???
« Reply #3 on: April 29, 2011, 05:33:01 PM »
Head gasket should be fine. 

Offline 70cbk0

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Re: Dear God! tear down again???
« Reply #4 on: April 29, 2011, 05:45:26 PM »
Oh Good, I hope so. Thanks Gordon
1970 CB 750K0
1969 CB 750K0
1966 CB77 Superhawk
1982 Honda XR200R

Offline y2kc0wb0y

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Re: Dear God! tear down again???
« Reply #5 on: April 29, 2011, 08:38:00 PM »
confirm head gasket should be fine.
CB750K3 890cc| 2004 VFR800A| 76 CB550F| 77 CB750F| 73 CB350G| 79 XLH| 2007 BMW R1200GS| CB750K2

Offline dave500

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Re: Dear God! tear down again???
« Reply #6 on: April 30, 2011, 01:00:25 AM »
your head gasket will be ok,ive reused old ones if they come off clean with no problem.