Ducati Monster Forum

Moto Board => Tech => Topic started by: POCO LOCO on August 18, 2017, 04:57:57 PM

Title: That pain in the arse flywheel thrust washer
Post by: POCO LOCO on August 18, 2017, 04:57:57 PM
Is there a way to hold the flywheel thrust washer from slipping out of alignment upon reassembly? Had put in a lightened flywheel on my 620 monster. upon start up noticed a noise coming from this area I had just worked on . Upon disassembly  discovered the mangled washer. I was thinking about laying down a layer of grease then laying washer on top. Any suggestions?
Title: Re: That pain in the arse flywheel thrust washer
Post by: koko64 on August 18, 2017, 06:23:18 PM
That's what I do.
Title: Re: That pain in the arse flywheel thrust washer
Post by: Speeddog on August 18, 2017, 06:47:51 PM
+1, grease on the flywheel side.
Title: Re: That pain in the arse flywheel thrust washer
Post by: greenmonster on August 19, 2017, 03:31:21 AM
+2, grease inner side.
I also measure when correct assembled top crank-nut,
then l KNOW if washer is good or not.
Alt cover bearing failure is a heartstopping noise...
Title: Re: That pain in the arse flywheel thrust washer
Post by: POCO LOCO on August 19, 2017, 02:37:05 PM
Quote from: greenmonster on August 19, 2017, 03:31:21 AM
+2, grease inner side.
I also measure when correct assembled top crank-nut,
then l KNOW if washer is good or not.
Alt cover bearing failure is a heartstopping noise...
Please explain what you mean by measuring assembled top crank nut ?
Title: Re: That pain in the arse flywheel thrust washer
Post by: Speeddog on August 19, 2017, 03:04:42 PM
I think he meant measuring from the end of the crank snout to the outer face of the nut.
Title: Re: That pain in the arse flywheel thrust washer
Post by: greenmonster on August 20, 2017, 03:47:42 AM
"I think he meant measuring from the end of the crank snout to the outer face of the nut."

Yup, w digital meter.
Title: Re: That pain in the arse flywheel thrust washer
Post by: silas on August 24, 2017, 06:48:06 AM
I made this same mistake when attempting to install my Yoyodyne light flywheel. And I used high temp grease under the thin washer. Problem is, the new aluminum flywheels' splines were a tight fit over the crank and required me to hold a 2x4 over the new flywheel and whack it to get flywheel to go onto the crank. This process dislodged the thrust washer...and required it to be reopened and redone. ( I farmed it out after messing it up- only 2nd time I've trailered my bike, upon a mess up)   ;D    My (super experienced) Ducati mechanic told me he made the same mistake decades ago on his 1st LW flywheel install, so I felt better .  Great idea w/ the measuring- I couldn't tell it was off by looking, prior to reinstall of the alt cover.