SOHC.co.uk Forums > CB750
Swinging Arm Bush appears to be a non standard size, why?
leadnavel:
--- Quote from: Tomb on October 13, 2020, 08:33:52 AM ---The OEM type being plastic, and presumably a tight fit in the swing arm, would they not have a much bigger outside diameter, and crush somewhat when fitted? this may bring the ID down in size when fitted. Julies bronze bushes will not do this much therefore need to be "size" before being fitted.
Just a thought.
--- End quote ---
The plastic material that the bushes are made from seems too stiff/brittle to be crushed down at all Tomb.
leadnavel:
Thanks for your help guys. I have asked CMS for a refund on the parts but I have had no response, it seems to have fallen on deaf ears!
Nurse Julie:
--- Quote from: leadnavel on October 13, 2020, 11:50:31 AM ---Thanks for your help guys. I have asked CMS for a refund on the parts but I have had no response, it seems to have fallen on deaf ears!
--- End quote ---
Oh dear 😕😕😕 I would be good to have an explanation from CMS how they sell them for that model but they don't fit 🤔🤔🤔
leadnavel:
Just an update for you chaps... I contacted Dave Silver Spares who were very helpful and removed a bush from a sealed Honda factory package (52108457300 bush) and checked the I/D, they also say that the I/D is 21.80mm?! After reading some other posts on here, and the other place, I remeasured my Coller using a micrometer rather than a vernier gauge, the measurements come back pretty sound (no ovality) on both bush ends. Between 21.40-21.43mm. There's definitely something strange going on here!
Bryanj:
Being as its plastic it may close up enough but you would have to fit it to check, have you measured the od of the bush and id of the arm?
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