SOHC.co.uk Forums > CB500/550
CB550k1 US Import - UK registration
Bryanj:
You do not put plastigauge between shell and rod, or cap, only on one shell and torque the cap.
The clearances are in the Honda manual, both max and normal but can't get at mine at the moment. There is also a table cross referring pin size and code to rod code, ideally you fit the specified new shell and check clearance with plastigauge altering shells if needed, that gets costly
juitz:
--- Quote from: Bryanj on November 26, 2022, 12:48:03 PM ---You do not put plastigauge between shell and rod, or cap, only on one shell and torque the cap.
The clearances are in the Honda manual, both max and normal but can't get at mine at the moment. There is also a table cross referring pin size and code to rod code, ideally you fit the specified new shell and check clearance with plastigauge altering shells if needed, that gets costly
--- End quote ---
Thanks Brian. Think I need to sit and get my around the two different tables in the manuals.
McCabe-Thiele (Ted):
We've all been throught the learning dip - just to confuse you they use different designations between mains & big ends on the axis lettering/numbering on the tables iirc.
Bryanj:
Yup, you have to remember that the Honda manuals were written for the dealers so assume you are a mechanic to start with, plus of course the technical translation can be a bit iffy
Oddjob:
--- Quote from: juitz on November 26, 2022, 12:00:25 PM ---Thanks Mick.
Looking at the manual on how to select bearing shells for Conrods, I've got:
2D, 2D, 2D, 3D
All shaft pin diameter are 34.99
I've plastigauged rod one between the cap and bearing and between bearing and pin. Both measured 0.038mm clearance.
I'm not sure where to go from here though as the manual has bearing selection based on the rod stampings and pin diametera. Can't find where in the manual the clearances come in to select the correct shell?
If I go by the manual, I need 6 brown and 2 greens.
--- End quote ---
Not sure where you've got that info from for bearing selection, there is no letter D in the bearing selection chart. Your crank markings look very clear, I can clearly see 1A on the rotor end crank webbing, the number 1 is for the crankshaft main journal, the letter A is for the conrod journal, so whatever number is printed on that conrod is what you need to check selection. The letter on the conrod is it's weight code, all the rods should have the same code so the crank is balanced.
Take a pic showing the crank markings and if possible the conrods showing the numbers printed on them, just to confirm the colour selection. Your shells look ok for re-use TBH, I'd just clean everything meticulously and refit them with some graphogen.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version