SOHC.co.uk Forums > Project Board
My CB550 K3 Restore Project
heli_madken:
Thanks everyone for the help and advice.
I will be replacing most serviceable items including the cam chain, tensioner and primary chain. This is an expensive hobby! I have a spreadsheet with over 2K's worth of stuff I want to buy, I have already spent £1,900, add this to the cost of the bike I dont think we do this to make any money do we :)
The cylinder head came off relatively easily, I am still not seeing anything frightening.
The bores look to be in good shape, no discernible lip at the top of the cylinder or any marks, you can see the remainder of the crud the engine was covered in -
[ Guests cannot view attachments ]
Valves and combustion chambers look ok just needs a good clean/decoke, I will remove the valves to look at the seats-
[ Guests cannot view attachments ]
Amazingly after all the effort I put into trying to free the cam chain tensioner adjuster bolt it just popped out on its own, not sure what was wrong as the tensioner seems to operate as it should now. The rubber pad looks worn to me? and the rubber is perished in some places -
[ Guests cannot view attachments ]
I am going to clean the cylinder head now so I can get it on my drill press and tackle that sheared bolt
Bryanj:
That tensioner blade is not worn as such, the side plates of the chain wear into the rubber till the rollers touch. You change them when the centre part is markedly lower than the outsides OR the rubber is cracking off the steel at the ends.
Check the mechanism carefully to make sure the gear on the end of the bolt and the teeth on the rack mesh well and evenly through the range, the steel frame gets "tweaked" out of true if the adjuster bolt is forced.
Pistons and valves look oily check stem seals and bore to piston clearance
heli_madken:
Thanks BryanJ, I will be replacing valve seals and most probably rins and will hone the bores but take care to check clearances.
Yesterday I managed to get the sheared bolt out of the cylinder head ok then took the engine out of the frame which I found easier to do by simply tipping the bike over on its side and lifting the frame off the engine.
Engine out, I cant fathom out what the dirt is the bike is covered in, petrol, degreasers, diesel dont touch it. I have had to resort to Acetone which of course destroys any paint left but that doesn't matter -
[ Guests cannot view attachments ]
The primary drive chain is incredibly loose but as far as I can tell hasn't impacted the casing, everything else looks ok no visible signs of wear -
[ Guests cannot view attachments ]
Really thick oil residue below the pickup which has a fair amount of filings in it but nothing I dont think to worry too much about-
[ Guests cannot view attachments ]
Thats it for the motor at present I have put it to one side, I hope to get as much stuff off the frame as I can today, stripper and paint is on order
Cheers
heli_madken:
I have a bare frame!, came apart easily enough
[ Guests cannot view attachments ]
I hate Scotchloks! real mess, not sure what was going on here as there are no accessories fitted. I will be replacing the core of the loom so it will all tidy up -
[ Guests cannot view attachments ]
Rectifier and regulator are real blast from the past especially the fully exposed Lucas 3DS5, but hey they still worked didnt they! I will replace with a single unit -
[ Guests cannot view attachments ]
This is inside the master cylinder eek I was actually riding the bike like this, shameful -
[ Guests cannot view attachments ]
Are the headlamp ears hard to find, haven't tried yet but I know for a GL they are getting scarce, these will clean up to a degree -
[ Guests cannot view attachments ]
Now to get the frame clean and start paint prep
paul G:
Whats the other side of the fork ears like.
They should come up nice when re plated :)
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version