Running Noise, Crank Play/Movement...???

[Stovie]

Hi Troops. Been of the site for a while, seems I only come back when I have real issues...lol. So here is this one...

Had a piston break (odd on, lower skirt side split off, must have had a fracture or something). Anyways split engine and replaced barrel and piston (it's a T5 and a Polini 152 barrel/piston - 61D). Once back together all kicked well etc, so looking good. However it sounds a little noisier then usual (IMO)...

Have ran for around 100 miles now (30-35mph) and when I returned from my last run yesterday I was turning the flywheel to see if I could hear anything odd. For me there seems to be excessive movement and a noise I am not sure of. Looked at a 150 Super and PX125 I ave and they have some movement and noise, but not the same. Just don't know where to start. When I recently split engine just before barrel replaced (had a bearing failure too) I replaced the bearings and seals. The crank seemed fine, no bottom end play when out.

Have stuck a couple of vids on YouTube showing movement and scoot running...as usual, any help or thoughts really appreciated. Next stop for this scoot is Petrol and Matches!

Flywheel/Crank Movement

Running Noise

[henri]

sorry listened to the runnin vid twice an cant hear what your on about ,sounds sweet to me
the 1st link just keeps bringing me back to this page . there shouldnt be any in-out movement on fly or up-down either .if youve movement there ya bearings/cranks shot . as youve had a bearing failure an piston break if the fly seems to be not running true i'd suspect a twisted crank." p*shed n broke",story of my life, sorry couldnt resist bringin that old cherry out .t5 flys n covers are different ,are you sure its not the fly hitting the cover giving the noise .H

[Stovie]

Thanks. There is no up/down or side movement in the flywheel, just when I rotate it (back/forth) seems to be a 'pinking' noise...not sure if that is right. I feel like I hear this pinking when running....could be paranoia

Here's what I mean:

[henri]

that dont sound right to me , hard to tell without havin hands on .but sounds like theres some play in the drive train.
didnt hear it in the runnin vid , it runs n drives , cant pin it down but am reckoning you need to investigate an pin it down . sorry i'm not more help . H

[Stovie]

Just don't know where to start...lol. Hence my problem. As you say something ain't right.

[pxguru]

Sounds like the clutch. Need to take it out to inspect it if nothing else.

[Stovie]

PXGuru. When you say clutch, anything i should be looking for? When I had it out previously couldn't see anything that worried me although never separated the plates etc.

[vespasco]

something sounds well sloppy, it should be easier to tell when you start stripping it down bit by bit.
the clutch and inside the cylinder would be the first things id look at

[henri]

i thought maybe clutch too , cush drive gone maybe , but also little end ? . as vespaco says cylinder n clutch cover 1st .H

[Stovie]

Cheers guys.