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Budget CB550, 'Parking Space' Build!

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Raygun:
Next Step today, got the second engine up in the stand and flipped it over to have a look at the sump underneath.

Sump is pretty grimy! Doesn't look in awful condition but some surface rust on the primary chain and some other areas. Gear teeth seem to be in good shape.

However, found a plastic hose (?) and some crap on the oil pickup filter, so wondering whether a rebuild might be necessary. (Can anyone recommend a Honda specialist I can send these bottom ends off too for a rebuild and vapour blast?)

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The sump, full of emulsified oil when I got it off. Gross!

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And this little guy was hiding out in there, probably not a good sign.

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More crap on the oil pickup

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Primary Drive Chain and Crankshaft

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What I could see of the gearbox

Bryanj:
I will rebuild them but i will not get involved in vapour or any other blast and/or repaint

Raygun:

--- Quote from: Bryanj on March 21, 2021, 04:37:34 PM ---I will rebuild them but i will not get involved in vapour or any other blast and/or repaint

--- End quote ---

Hey Bryan, that could be great- thanks! I've sent you a PM.

Raygun:

--- Quote from: Oddjob on March 21, 2021, 06:21:55 PM ---I've got a nasty feeling that something is broken inside that engine. Lots of small metal pieces in the sump along with a couple of larger pieces.

--- End quote ---

The more I look at it the more I'm inclined to agree. Full re-build for both is now firmly on the list.

Raygun:

--- Quote from: Oddjob on March 22, 2021, 01:51:35 AM ---In actual fact I can see the damage, last picture of the strainer with the piping attached, look below that and you can see shiny metal and the remains of what I assume is the kickstart mechanism. Whether this broke first or was broken by bits coming off something else is another matter. They don’t tend to break that badly internally, splines yes. I suspect we may see a gear without it’s teeth somewhere in there or a broken selector


Yep, next picture up and you can see chips off at least 3 gears, something has certainly been flying around in there.

Bloody hell, the more you look the more you spot. Check out the crankcasing just next to the primary chain, something got crushed and spun round with the chain taking parts of the crankcasing with it.

--- End quote ---

Good spot, it's not great in there at all. Hopefully worth a rebuild rather than having to seek out a new engine!

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