balancing carbs on a 79 Montjuic

ChrisH

New member
Might be a stupid question but are there any take-off points where I could attach vac gauges to balance the carbs? How do people usually balance their carbs? Thanks
 
Hi there,

you should have a tube between carbs and head that connect all three carbs vaccuum connectors (shall "auto-balance" the carbs to a certain point...). If you remove that and attach the gauges there, you are fine. Don't forget to put the linking tubes back on!!
 
Wow a triple carb monty now that must be rare
                                                         
                                                Dave
 
I guess if I get them all balanced then it will be really fast!

However, the two carbs seem completely separate, there's no balancing tubes or other connections. The manifold between the carb and the head is a solid rubber item, I can only hope there's a take off point on the carbs somewhere? Other than that, is it just a case of sticking the tubes in to the bell mouth (although I can't believe that will work well)

Any other thoughts
 
Chris,

At the manifold end of the carb, you should find a sloted screw, fitted vertically on the LH side of each carb.  This is the vacuum take-off, has an M5 thread.  Remove the screws, fit a couple of hose barbs and your vacuum guages.  The bracket connecting the carb tops has appropriate bores through which a screwdriver can be inserted to facilitate removal of the screws.

The barbs can be left fitted to the carbs and either blanked off seperately or connected with a length of hose, as on the later triples.

piet
 
we find when we change the Monty's to Mikuni Flatslide carbs that by using the balance tube between the two carbs the engine idles and responds a lot better.
and I mean a LOT better
never tried to join a set of Dells though on a Monty so don't know if it works on them but it should

 
I find that I don?t link the Dels on the Guzzis but as Red suggested it does make a big difference on the Morini 500.

The Alpino is getting closer every day and should be in the Pacific by now. I?ll let you know after it arrives and I have a play.

cheers

Rod
 
dja981 said:
Wow a triple carb monty now that must be rare
                                                         
                                                 Dave
Ups... I read Mirage... :-[
 
Lothar, a certain mirage can also be a very rare thing, only a sidepanel has surfaced so far...
 
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