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General Category => General Discussion => Topic started by: willowstreetguzziguy on September 05, 2016, 09:04:48 AM

Title: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: willowstreetguzziguy on September 05, 2016, 09:04:48 AM

I do not have a center stand so I will need to turn the engine at the front. Does it rotate clockwise? If it does, is it bad to rotate it against the normal direct to get the engine at TDC?

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: fotoguzzi on September 05, 2016, 09:34:27 AM

yes, clockwise.. probably not a good idea to rotate in reverse..

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: John A on September 05, 2016, 10:02:30 AM

I think the only reason not to go backwards is sometimes it will loosen the nut.

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: willowstreetguzziguy on September 05, 2016, 11:21:56 AM

What size is the metric nut at the front to turn the engine?

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: willowstreetguzziguy on September 05, 2016, 12:01:51 PM

it's a 24mm

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: Waltr on September 05, 2016, 06:40:02 PM

Or 1 inch will do fine.

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: Wayne Orwig on September 05, 2016, 08:02:36 PM

I did my Centauro for years by rolling it forward in fifth gear. Never did use the nut on the front. Too much work to remove the cover.

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: willowstreetguzziguy on September 05, 2016, 08:46:47 PM

All went well. The exhaust valves were dead on at .006" but the intake valves were at.005" and I set them back to .004". A fairly easy job. A YouTube video on a Norge helped as well.

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: derek533 on September 05, 2016, 11:43:59 PM

Quote from: willowstreetguzziguy on September 05, 2016, 08:46:47 PM

All went well. The exhaust valves were dead on at .006" but the intake valves were at.005" and I set them back to .004". A fairly easy job. A YouTube video on a Norge helped as well.

Ok, so I've never done my own valve jobs before (except on a Briggs lawnmower motor) but that was one of the things that attracted me to the Guzzi in the first place since it appears to be a fairly straightforward process due to the ease of access.

One question for my infantile mechanical mind, what is the purpose of putting the bike in high gear? 

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: ITSec on September 05, 2016, 11:49:31 PM

Quote from: OMG on September 05, 2016, 08:02:36 PM

I did my Centauro for years by rolling it forward in fifth gear. Never did use the nut on the front. Too much work to remove the cover.

I haven't looked at the cover of a Centauro, but on most Guzzis of recent years there's a rubber plug up there. When did that start?

Title: Re: My first time doing a valve adjustment on 2 V 1200 Sport ... question
Post by: ITSec on September 05, 2016, 11:50:51 PM

Quote from: derek533 on September 05, 2016, 11:43:59 PM

Ok, so I've never done my own valve jobs before (except on a Briggs lawnmower motor) but that was one of the things that attracted me to the Guzzi in the first place since it appears to be a fairly straightforward process due to the ease of access.

One question for my infantile mechanical mind, what is the purpose of putting the bike in high gear?

Fifth gear means the engine turns more slowly compared to the rear wheel. It allows you to turn the crank more slowly, and be more accurate about hitting the intended position.