Falcone valve adjustment

[alan.e.g...@gmail.com]

Can someone point me in the direction of valve adjustment methodology on a '62 Falcone. The manual pictures show adjustment without using feeler gauges between the rocker and valve. What are the valve clearances? Is adjustment done cold and at TDC?
Regards
Alan Greenslade

[Dorien]

Set the at 0.10mm and 0.20mm cold TDC You can also look at the videohttps://youtu.be/Ot0PK1tjmKc  and fast forward it were it shows the job being done, even if you don't understand what he is saying it will make sense.

Dorien

[Gordon de la Mare]

Hmmm . my documentation says inlet 0.05mm and exhaust at 0.1mm    The 02.mm is used for checkiing/setting valve timing?

You can verify here if you wish:

http://www.thisoldtractor.com/mg_manuals/use_and_maintenance_manual_falcone_sport_and_turismo_7ed.pdf

Page 31

---

From: 'Dorien' via Guzzi Singles <guzzi-...@googlegroups.com>
To: Guzzi Singles <guzzi-...@googlegroups.com>
Sent: Monday, 16 May 2016, 18:19
Subject: [guzzi-singles] Re: Falcone valve adjustment

--
You received this message because you are subscribed to the Google Groups "Guzzi Singles" group.
To unsubscribe from this group and stop receiving emails from it, send an email to guzzi-single...@googlegroups.com.
To post to this group, send email to guzzi-...@googlegroups.com.
Visit this group at https://groups.google.com/group/guzzi-singles.
For more options, visit https://groups.google.com/d/optout.

[Alan Comfort]

I use 0.004" on the intake and 0.006" on the exhaust - measured  on a cold engine. I welded a short handle on a 1/4" drive socket so that I could hold the slotted tappet adjuster with a screwdriver while tightening the lock nut. A flat feeler gauge is relatively easy to fit between the tappet and the valve lash cap. It usually takes a couple of tries to get it right. Access, of course, is via the round hole in the rocker box. Don't forget the fibre washer for the threaded plug.

If you don't have access to a welder, just grind a couple of flats on a 1/4" drive socket and use an open end spanner.

Some time ago I read somewhere that the Falcone valves are adjusted so that you can just turn the pushrod with your fingers.on a cold engine. That sounds like zero clearance and a recipe for burnt valves, but I could be wrong. I'll take a little valve lash over a burnt valves any day.

Alan in Roberts Creek

[alan.e.g...@gmail.com]

Thanks everyone. The manual says 0.002" and 0.004" (0.5 and 0.1mm). Has anyone put a Dial Indicator on the adjustment end of the rocket to measure what the correct feeler gauge gaps equate to? That would save removing the rocker covers when setting the tappets ie you could measure the gap with a DTI through the push rod plug?
Alan

[Patrick Hayes]

On 5/16/2016 11:38 PM, alan.e.g...@gmail.com wrote:
> Thanks everyone. The manual says 0.002" and 0.004" (0.5 and 0.1mm).

Not trying to nit pick. You mean 0.05mm and 0.1mm.

> Has anyone put a Dial Indicator on the adjustment end of the rocket
> to measure what the correct feeler gauge gaps equate to?

Without measuring for precision, I believe that the input and output
arms of the rocker are roughly close to equal length and thus subtend
close to equal arcs. Thus, one-tenth gap at the valve tip is probably
also equivalent to one-tenth gap at the push rod tip (or adjuster tip).
Or close enough so as not to debate. Someone else can measure and
prove me wrong if it is significant.

Another point is that the adjuster screw is a standard 6mm X 1mm pitch
screw. So, if you want a 0.1mm clearance, just bring the screw to a
zero contact point by finger tightening and then back it off by
one-tenth of a rotation. The tighter intake valve would be
one-twentieth of a rotation or a little more than 'one half hour' if you
are visualizing a clock as you rotate the adjuster.

These are pretty low stress engines and such a simple adjustment
technique ought to be adequate.

Patrick Hayes
Fremont CA

[Dorien]

All this is interesting and I don't have my manual handy, but all Italian sites use 0,10 mm  and 0, 20 mm  ....

Dorien

see below

Caratteristiche tecniche:  Alesaggio 88 mm  Corsa 82 mm  cilindrata 499 cc  Rapporto di compressione 6,85 : 1  Potenza max 26,2 cav. SAE  dati della distribuzione:  Aspirazione:  Inizia 40° prima del PMS  Finisce 74° dopo il PMI  Scarico  Inizia 67° 30' prima del PMI  Termina 33° dopo il PMS.  Gioco delle punterie a FREDDO:  Aspirazione mm 0,10  Scarico mm 0,20  Un carburatore Dell'Orto VHB 29 A  getto max. 132  getto minimo 50  spillo conico V 10 alla seconda tacca  Vite del minimo aperta di 1 giro e 1/4  Anticipo fisso 8°  Anticipo automatico 34°

On Monday, May 16, 2016 at 6:02:18 AM UTC-4, alan.e.g...@gmail.com wrote:

[alan.e.g...@gmail.com]

Thanks Patrick. Yes - should of said 0.05 and 0.10mm.
As a new Falcone owner I have not set the tappets yet but when I do I will try your thread pitch / screw angle method and check for accuracy.
Alan Greenslade NZ

[leo volmer]

Dorien, you show info of the Nuovo Falcone , not the Falcone TV ; Tipo Vecchio.

   Regards, Leo

Op maandag 16 mei 2016 12:02:18 UTC+2 schreef alan.e.g...@gmail.com:

[Dorien]

OOPS sorry.you are right. I was dealing with some work on my other Falcone  a Nuovo Civile and mixed them up.

Dorien