Help !! Carb balancing.

[dazwoody]

Hi everyone, I'm new to all this, but am currently trying to get my recent purchase up and running.Think i need to balance the carbs and don't really know how to. Any tips or litrature would be appreciated. If you live near Nuneaton and fancy tackling it, please feel free to contact me.Daz.

[martin]

Hiya Daz, welcome to the forum. First step is to get hold of the Haynes manual, the section on setting up carbs is a straight lift from the trade publications and very good, it's also cheaper and more readily available than others.
Does the old girl run at the moment ? if not, do you know why ? If she does run, I'm about 35 miles from you and will happily do it for you. Obviously there's no question of a charge. ( that's a given ) Cheers Martin.

[Colonel Mustard]

Hi Daz,

Good point from Martin. Setting up the carbs is quite easy, if time consuming, but need to know where you're starting from. The engine needs to be in reasonable running order to make any carb adjustments worthwhile.

Chris

[Mike J]

I made the mistake of fidling with the carbs too early when I bought mine. Leave alone for a while and get your head around timing plugs ..etc. The chances are your carbs are fine. make sure all parts are as they should be before adjusting. Then when they balanced at 800rmp they are not at 1500 but are balanced again at 2000. And that's before you tighten every thing up.

[martin]

I made the mistake of fidling with the carbs too early when I bought mine. Leave alone for a while and get your head around timing plugs ..etc. The chances are your carbs are fine. make sure all parts are as they should be before adjusting. Then when they balanced at 800rmp they are not at 1500 but are balanced again at 2000. And that's before you tighten every thing up.

If balanced at the correct idle speed, and the rods are set correctly, they remain balanced throughout the entire rev range. Martin.

[Mike J]

I have spent hours trying to get a perfect balance between the two. Ther always seems to be a variation around 12-1500 rpm. don't know why. As usual have cheked everything. May be servo, slackness in the couplings.I Don't worry anymore.It seems to be somewhere near. Passes the MOT.

[MGBV8]

95% of carb problems are actually electrical.
New plugs, set the point gaps and set your timing before you go anywhere near the fuel side of things.

This applys to any classic car IMVHO.

-JC.