2008 FE 550 top end removal for piston ring inspection

canadius · Jan 14, 2021

Hi,

I’m interested in checking the condition of my piston / rings. Will the top end come off the cylinder with the engine in situ or do I have to plan on removing the engine?

The space looks pretty cramped, but maybe removing the rad frees up enough room?

Thanks.

C

Taffy · Jan 15, 2021

I get this quite a lot from half mechanics.

the rings outlast the pistons on a Husaberg and any modern bike for that matter. basically, the piston wares until it tilts. when it tilts enough it no longer has contact with the thrust-face walls and that is when you get smoking.

regards

Taffy

canadius · Jan 15, 2021

Thanks. That’s good to know.

But my question is around removal of the top end assembly. Will the long bolts clear the frame? Will the head clear the frame? Or do I have to remove the entire engine just to remove the head-and if worn, the piston?

Much appreciated.

tomasnj · Jan 15, 2021

canadius said:
Thanks. That’s good to know.

But my question is around removal of the top end assembly. Will the long bolts clear the frame? Will the head clear the frame? Or do I have to remove the entire engine just to remove the head-and if worn, the piston?

Much appreciated.

Most definitely. You have to remove the engine from the frame. That part is like 5% of the work, so there is no reason to try to skip it.

Your Husaberg has a sleeve type cylinder, hence the only way to remove/inspect the piston is to split the cases.

There are a few videos on youtube showing assembly/disassembly.

canadius · Jan 15, 2021

tomasnj said:
Most definitely. You have to remove the engine from the frame. That part is like 5% of the work, so there is no reason to try to skip it.

Your Husaberg has a sleeve type cylinder, hence the only way to remove/inspect the piston is to split the cases.

There are a few videos on youtube showing assembly/disassembly.

Thanks. I've seen this video - can't see the other parts in his channel

This one's good, though it's tricky given the language (Finnish?) - but it's a start. Any specific piston replacement vids would be great.

thanks,

C

Taffy · Jan 15, 2021

ha! ha! that is our own Mats Clementz of SWEDEN, he'd be mortified to be called a Finn! I suppose you could have called him something worse. he has a thread running with 812 replies right near this one. Just buy a flywheel puller and get on with it.

Taffy

canadius · Jan 15, 2021

Actually, I forgot to add the 2nd video - the one I was referring to that wasn't in English was this one:

slightly older, but helpful.

I assumed Finnish from the name (Enduro Muki) but whatever.

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2008 FE 550 top end removal for piston ring inspection

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