SOHC.co.uk Forums > CB500/550
Camshaft Cover fastners question?
Oddjob:
The 8mm headed Honda bolts fit fine
DomP:
My socket head bolts foul the tappet caps too, they were on the bike when I got it so will probably replace them with button heads.
McCabe-Thiele (Ted):
--- Quote from: Oddjob on September 25, 2023, 09:19:54 PM ---The 8mm headed Honda bolts fit fine
--- End quote ---
So where can I get them from Ken are they a genuine Honda part with an associated part number? They are 20 mm long.
Update: Seen some on e- bay £5.00 each plus delivery that's daft money.
Oddjob:
They are less than £1.50 inc VAT each from any Honda dealer. Or available online. £1.38 each at Fowlers for instance.
With these bolts Ted all you need to remember is to substitute the length inside the part number.
For instance, the part number for a 35mm bolt of the same type is 96000-06035-00. The 96000 denotes the type of bolt, in this case a flanged 8mm headed bolt. The next 2 numbers are the diameter of the bolt, in this case 6mm, if it was 8mm it would be 08.
Then just change the next 3 numbers to the length you want, so you want 20mm so just search for 96000-06020-00. The next 2 numbers aren't really needed, they denote the finish of the bolt, in this case BZP.
If you fancy changing others you can actually do the entire casing set. If you want to check to see if Honda ever did a particular size just change the numbers to the length you want and search. They did really long ones, over 105mm for instance.
Member on here changed his entire casing screws to these on his 550 after finding the same problem as you. They look really well fitted, far better than crosshead JIS screws for instance.
Forgot to add the rear bolts on the camcover are 25mm not 20mm, bear that in mind. I think Honda got the parts book diagram wrong, they show the 20mm screws as No.26 and fitted to the right hand side when it should show them fitted to all the front bolt holes, there are 4 in total. The rear outer holes are No.27 in the parts book and are fitted to the rear outer holes and the outer holes on the breather cover, again 4 in total. You can also replace the other bolts are the same time so they look uniform, you'll need 5 x 40mm, 1 x 50mm and 4 x 65mm. If you want you can also change the 2 under the camshaft end caps, but as you can't see them when fitted that's up to you. Those are 2 x 45mm bolts.
Personally I think they look better that way, instead of a mix of 10mm headed plain bolts and JIS screws you get a complete set of flanged bolts, which don't scratch the new paintwork as bad, and they are all the same. Plus unlike socket bolts and JIS screws they don't hold water inside the head and rust away. The original bolts have a slight dome on the head which allows water to just drain off them, for some reason the pics I can see of the now they look a bit flat headed.
McCabe-Thiele (Ted):
Thanks Ken for taking the time to post such an informative reply.👍👍👍
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version