NF Mighty NF forum 2016x>




Author Topic: Poorly NF in Guzzi hospital...  (Read 212 times)

mhsilverw

  • Newbie
  • *
  • Posts: 17
    • View Profile
Poorly NF in Guzzi hospital...
« on: June 27, 2018, 07:26:21 pm »
NF gone for MOT and check over.

And having oil line to valve stuff, for piece of mind...

And I thought a grease nipple on swinging arm / check might be sensible....

Not quite what I was expecting.

"....made a start on your Guzzi today, decided to look at the fitting of a grease nipple as you requested, removed the rear wheel etc to remove the swinging arm and i discovered some movement in swinging arm to frame mounting, what has happened is the swinging arm bolt has seized inside the main bushing which has seized inside the two outer bush's, this has resulted in wear at the mounting points on the frame as suspension movement has twisted the mounting bolt back and forth wearing the mounting holes. After 3 hours of trying to get the bolt out i ended up having to drill the bolt from either side to release the arm from the frame, it then took 14 tons pressure on my press to release the main bushing from the swinging arm. I have ordered a new bolt but bush's and the main bushing seem to unavailable but i will keep trying, if i have no joy i will get a new main bushing manufactured and ream the two outer bush's to size, i will also take the two damaged mounting holes out to a uniform size and machine up some top hat bush's to take the hole size back to standard. Regards...."

Fingers and toes crossed!

Mark

Share on Facebook Share on Twitter


mhsilverw

  • Newbie
  • *
  • Posts: 17
    • View Profile
Re: Poorly NF in Guzzi hospital...
« Reply #1 on: July 03, 2018, 07:14:06 pm »
More news as the Guzzi in care.

My man reports: "...new swinging arm bolt and the main bushing looks reusable now i have cleaned it up providing i can remove the original mounting bolt from the centre, currently waiting for a longer drill bit to do so...."

Small steps.

banquo

  • Administrator
  • Hero Member
  • *****
  • Posts: 986
    • View Profile
Re: Poorly NF in Guzzi hospital...
« Reply #2 on: July 10, 2018, 11:15:55 am »
Sounds like you're making some progress Mark. Do you know any of the bike's history? i.e. how long it's actually been on the road?

mhsilverw

  • Newbie
  • *
  • Posts: 17
    • View Profile
Re: Poorly NF in Guzzi hospital...
« Reply #3 on: July 10, 2018, 07:06:22 pm »
The bike was reported to have been used in service before retirement (possibly Vatican) and then sold by a dealer in Italy and regular use.

It then migrated to UK and came to me via NLM in Leicester.

Doesn't appear to have been restored, and has patina of age...had gone in for service and MOT.

After a Vtwin Guzzi suffered with a drive shaft bearing and swinging arm wear decided after reading Paul Fridays notes maybe a check and grease nipple to allow maintenance as 'she' ages...Fingers crossed.

banquo

  • Administrator
  • Hero Member
  • *****
  • Posts: 986
    • View Profile
Re: Poorly NF in Guzzi hospital...
« Reply #4 on: July 11, 2018, 08:42:04 am »
Good luck, and keep us posted....  ;)

mhsilverw

  • Newbie
  • *
  • Posts: 17
    • View Profile
Re: Poorly NF in Guzzi hospital...
« Reply #5 on: July 24, 2018, 05:53:27 am »
Well it seems the Guzzi is all done, waiting for its return. Bank a bit lighter!

Mot'd and ready to be delivered back. No success trying to drill the old bolt from the swinging arm bushing which meant a new bushing had to be purchased along with extra labour to machine and fit shims to eliminate some side play in the swinging arm.  The other issue was the gallant fight put up by the flywheel refusing to leave the crankshaft to allow me access to the kick start assembly, my mechanic finally won.

Wonder if it will return when the rains come...

Regards

Mark

Useful Useful x 1 View List

banquo

  • Administrator
  • Hero Member
  • *****
  • Posts: 986
    • View Profile
Re: Poorly NF in Guzzi hospital...
« Reply #6 on: July 24, 2018, 08:20:10 am »
Good news; as mentioned on FB, you don't need to remove the flywheel to get the kickstart off. My flywheel wouldn't come off when I broke the kickstart spring, and I didn't have the special tool for the locknut back then. Resolved by removing the rear engine mounts and tilting the engine forwards on the front mount to clear the frame. Details on the Paul Friday files download.... ;-)