Post by: Topcat on February 17, 2019, 04:32:31 PM
Have been attempting to split cases for a while now as I want to inspect the internals as there was a fair amount of gunk in the sump and a lot of other worrying signs throughout the bike.
I'm having an issue and want to avoid rushing in and doing more damage to the cases. First I've managed to mostly break the seal between the two cases on the side of the oil filter but on the back side of the engine it seems to be completely solid. I've checked and re checked I've removed all the bolts and really want to avoid prying anywhere. I think it might be getting stuck on either the little dowel pin things (other places on the engine these have been really rusty) so soaking the thing with penetrating oil and using heat but nothing appears to be giving.
Any suggestions on what to do around this area to avoid damaging the mating surfaces?
Edit: forgot to mention this is a CB550F2
Thanks
Topcat
Post by: Bryanj on February 17, 2019, 04:39:39 PM
Post by: Topcat on February 17, 2019, 05:09:39 PM
There are a couple of bolts from the top down which frequently get forgotten about
On the following diagram which bolts are you referring to or are they not listed?
https://images.cmsnl.com/img/partslists/honda-cb550f2-super-sport-550-four-1977-england-crankcase_big00026138e12_0ee6.gif
Post by: Bryanj on February 17, 2019, 05:15:43 PM
Post by: Trigger on February 17, 2019, 06:20:07 PM
Post by: Bryanj on February 17, 2019, 06:51:57 PM
Post by: Topcat on February 18, 2019, 11:59:30 AM
Topcat
Post by: Bryanj on February 18, 2019, 12:09:08 PM
Post by: Topcat on February 18, 2019, 03:32:51 PM
As a 500 always replace the primary and cam chains plus the rubbers in the promary cush drive, also inspect the selectors, especialy the middle one, carefully.
Will do, was planning on the chains but good to know about the primary drive cush rubbers. I'll replace these as well now. With regard to the bearings are these worth replacing and are they even available anymore? If not do you have any tips for cleaning them out and repacking or should this be avoided?
Cheers
Topcat
Post by: K2-K6 on February 18, 2019, 09:39:03 PM
They should then by checked for play and rotated to see if they are smooth running with no real noise while rotating.
Finally, dip them in clean engine oil (they are normally run in this when running) and again check they rotate smoothly. They should be silent like this, any noise and loose feeling you'd be looking at replacement.
Depending on original mileage they can stay in surprisingly good condition if the oil has been changed as it should.
Post by: Bryanj on February 18, 2019, 10:22:05 PM
Post by: SteveD CB500K0 on February 19, 2019, 06:59:28 AM
Been busy exeremcising
Normally I can work out what you mean by some of your more mangled keyboard work Bryan.
Not this time
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Post by: hairygit on February 19, 2019, 09:48:13 AM
Steve, at a guess remove the 3rd e and the m from the last word, excercising?Been busy exeremcising
Normally I can work out what you mean by some of your more mangled keyboard work Bryan.
Not this time
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Post by: K2-K6 on February 19, 2019, 09:58:57 AM
Post by: Bryanj on February 19, 2019, 10:13:48 AM
Thats my story and i'm sticking to it!
Post by: royhall on February 19, 2019, 04:15:11 PM
Substitute "Years of big hammers" for "Lots and lots of beer" and "Gym" for "pub" and it makes sense.;D ;D ;D ;D ;D ;D ;D ;D ;D
Post by: Bryanj on February 19, 2019, 05:40:38 PM
Post by: hairygit on February 19, 2019, 06:09:36 PM
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Post by: Bryanj on February 19, 2019, 06:31:11 PM
Post by: Allington (Steve) on February 19, 2019, 06:35:55 PM
I wish people, not had alcohol for over 6 months! Or salt, sugar mimimal fats etc etc, cant even have me favourite sarnies---------have you seen the amount of salt in bread and ham!
I don’t drink a lot of beer but when the doctor told me I had to cut down on salt, sugar and fats I ripped the piece of paper up and threw it away. I cut out chemicals and processed foods and feel a thousand percent better. I just eat proper food that still tastes good to eat.
Post by: Bryanj on February 19, 2019, 11:20:00 PM
Post by: Topcat on February 25, 2019, 08:54:07 AM
Cheers
Topcat
Post by: Bryanj on February 25, 2019, 09:45:33 AM
Post by: Topcat on February 25, 2019, 10:07:06 AM
The drum should just slide out after removing neutral rotor(1 screw) drum detent and roller plus selector clips and pins.
Yeah it's that one screw that I a struggling with, will post a pic later but basically that screw is stuck and when turning the drum turns so not really able to free it.
Post by: Bryanj on February 25, 2019, 11:37:18 AM
Post by: Topcat on February 25, 2019, 11:53:56 AM
Yup, next timp you will undo that screw just after removing sprocket cover!
Haha yeah, guess this is all a learning experience. Managed to get that one free finally but the one next to it holding the rest of the mechanism in place is nearly stripped :(
[attach=1]
Also managed to get a close up of the middle selector fork. Looks a bit knackered, assume I'll need to get a new one. Thoughts?
[attach=2]
[attach=3]
[attach=4]
Post by: Bryanj on February 25, 2019, 12:01:40 PM
Post by: Trigger on February 25, 2019, 12:18:40 PM
Post by: Bryanj on February 25, 2019, 12:33:42 PM
Post by: Topcat on February 25, 2019, 12:36:28 PM
Thats a 550 dog Bryan, not a 500 ;)
you are on the ball yes its a 550. Are these just as rare i assume?
Post by: Topcat on February 25, 2019, 02:50:52 PM
The part you require is 24212-390-000 and is indeed getting hard to source.
There is a NOS one in Sweden for 771 krona but no idea how that much is in £
Luckily I think I've managed to source one...well hopefully we'll see when it arrives :)
Still got to sort the other screw for the neutral switch assembly then clean everything up. But slowly slowly.
Post by: Trigger on February 25, 2019, 07:32:57 PM