Author Topic: Need a Quickie ??  (Read 1138 times)

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Offline 750goes

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Need a Quickie ??
« on: October 09, 2006, 02:27:09 AM »
Can a guru confirm that the valve springs inner/outer the tighter ends are closer to the valve face, not the camshaft end ??

bike is 750/4
 :)

Roastem

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Re: Need a Quickie ??
« Reply #1 on: October 09, 2006, 06:13:48 AM »
man if you post a pic of the springs i coudl tell you, just cant seem to get my head wrapped around what you are saying.....

Offline spitfire

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Re: Need a Quickie ??
« Reply #2 on: October 09, 2006, 06:20:00 AM »
I'm not a guru, but according to my CB750F2 manual the narrow pitch end faces the cylinder head.

Cheers

Dennis
Wirral UK
1976 CB750F1 bought new in 76
1977 CB750F2: Restoration started
1964 BSA A65R: Waiting restoration
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Roastem

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Re: Need a Quickie ??
« Reply #3 on: October 09, 2006, 06:24:20 AM »
ahh yes much better, now i know what you mean.  and yes that is correct, same way on cars that use a spring similar to that.

Offline crazypj

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Re: Need a Quickie ??
« Reply #4 on: October 09, 2006, 07:16:19 AM »
closed coil to the non moving side (cyl head) it compresses and becomes 'solid' so would increase he weight of retainer and probably cause valve/piston damage at higher rpm due to increased inertia ( valve float happens sooner)
PJ
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'you can take my word for it or argue until you find out I'm right'