Scooterotica

Pig stopped running last week, suddenly.

Engine would turn backwards some but not forwards. A quick look in the top end didn't reveal much. We suspected a stator screw had come loose. Unfortunately no such luck. After removing the exhaust and lifting the barrel a bit we could see swarf in the piton bosses. The Malossi barrel won't seem to come out with the engine in so set about dropping it.

On removing the barrel a chunk of seal shook out of that casing. Splitting it now unavoidable.

Got the crank out to find this

[URL=http://s1223.photobucket.com/albums/dd5 ... 47437e.jpg][IMG]http://i1223.photobucket.com/albums/dd5 ... 47437e.jpg[/IMG][/URL]

Supposedly a genuine seal too.

Spring has taken a good run round the top end -



Anyone think this piston is salvageable?

rosscla wrote:Pig stopped running last week, suddenly.

Engine would turn backwards some but not forwards. A quick look in the top end didn't reveal much. We suspected a stator screw had come loose. Unfortunately no such luck. After removing the exhaust and lifting the barrel a bit we could see swarf in the piton bosses. The Malossi barrel won't seem to come out with the engine in so set about dropping it.

On removing the barrel a chunk of seal shook out of that casing. Splitting it now unavoidable.

Got the crank out to find this



Supposedly a genuine seal too.

Spring has taken a good run round the top end -



Anyone think this piston is salvageable?

fixted it for ya

Something funny going on with the pics

What did you change?

Piston , if you can fix that I'd be grateful...

Salvageable?

Personally I'd junk it, suppose you could clean it up a bit if you wanted but pistonkits aren't overly expensive although I've not looked at Malossi stuff in quite a while. Is the bore itself alright?

Bore's not bad, no bad scores to speak of.

Piston kits are 75 - 99 £ unless there's another option, might be woth looking at it in €...

you could clean it up and put new rings on , ive seen far worse running. that's a heat sieze on the exhaust port side, nowt to do with the seal spring. locktite and dot punch your new seal in.

Looks stuffed to me... is that a chunk missing?

No, that's the recess to access the circlip, you can see it both sides, just not a pretty casting I suspect