Piston slap

Jon · 05-Nov-2006, 17:29

Just stripped the 600ss down and discoverd that the front or horizontal piston has sufferd a bit of piston slap. The machine marks that travel all around the piston have worn off on the topside. My querie is, what is the solution. Is it a case of rebore,new piston and rings. Or can you get away with new rings only?

yeti · 05-Nov-2006, 17:46

You really need to meausure the bore and make sure it's not above limits. Is there a noticable lip at the top of the bore where the piston reaches it's max? Good chance of it wasn't burning oil that you could get away with new rings, but don't quote me.

yeti · 05-Nov-2006, 17:47

You really need to measure the bore and make sure it's not above limits. Is there a noticable lip at the top of the bore where the piston reaches it's max? Good chance of it wasn't burning oil that you could get away with new rings, but don't quote me.

Jon · 05-Nov-2006, 23:59

No sign of a lip John just the piston slightly polished on the top edge.

tranquil_rage · 06-Nov-2006, 11:21

Get the vernier gauges out and check clearances. It's the only way to be sure about the bore and the piston itself. If both are within limits then new rings should be the sum of it.

Jon · 06-Nov-2006, 18:24

Quote:

Originally Posted by tranquil_rage

Get the vernier gauges out and check clearances. It's the only way to be sure about the bore and the piston itself. If both are within limits then new rings should be the sum of it.

Thx TR

rockhopper · 06-Nov-2006, 19:01

I thought it was a common problem on these engines and nothing to worry about - chances are it will start doing it again almost as soon as you have fixed it.

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05-Nov-2006, 23:59	#4
Jon Registered Forum User Ducati Corse Posts: 3,921 Join Date: Jun 2001 Location: Drayton Bassett, Staffs Mood: Tad more confident No sign of a lip John just the piston slightly polished on the top edge. Reply

06-Nov-2006, 11:21	#5
tranquil_rage Registered Forum User Mille Bikes: Ducati 900SSie Posts: 107 Join Date: Nov 2005 Location: Southampton Get the vernier gauges out and check clearances. It's the only way to be sure about the bore and the piston itself. If both are within limits then new rings should be the sum of it. Reply

06-Nov-2006, 19:01	#7
rockhopper Registered Forum User Ducati Corse Posts: 3,367 Join Date: Jul 2001 Location: Pinxton I thought it was a common problem on these engines and nothing to worry about - chances are it will start doing it again almost as soon as you have fixed it. Reply