Ea81 carby

[Dan90]

Just curious about swapping a carby over. Have a brumby with an ea81 from an 84 L series which runs fine but has a flat spot in the carby when the Revs begin to go up. I would like to grab another standard ea81 carby and throw it on.

 

The problem is that on the 2 touring wagons, other brumby and L series we have, none of them have a mystery solenoid at the back of the carby. The brumby with the flat spot has this mystery solenoid.

 

Would it be ok to use a carby without a second solenoid? (looks separate from the idle solenoid). Also, what is the purpose of the mystery solenoid?

 

Cheers

 

Daniel

[GeneralDisorder]

Need pictures.

 

Flat spots aren't neccesarily carb related. Ignition timing, idle speed/mixture, and vacuum leaks all can contribute. 9 out of 10 times replaceing the carb will get you nowhere.

 

GD

[Dan90]

I found an identical carby on a spare parts car. I have put it on and the acceleration is much better, but occasionally when touching the accelerator, the engine starts to die but does pick up again.

 

I am thinking the would be a problem with the electrics of the carby, not 100% sure.

 

I will post pics of the carby once I get home. Posting from my phone.

 

Cheers

 

Daniel

[leone2drman]

i am also having a similar problem, my carbies shaft flops around, so its worn out, i have 3 spare ea81 engines, all different carbies, also my manifold has a diafram behind the carbie, all the other manifolds i have dont, whats it for?

[Dan90]

Here are the pictures of the carby I pulled off. 1 of each side and 1 close up of each solenoid.

 

 

 

Have driven the car some more and adjusted the idle up slightly and it runs fine. Occasionally stalls when idling, not sure why just yet.

[coxy]

You will probably find that with some wear in the throttle shaft the throttle plate doesn't always seat the same so sometimes it will lower the idle more than you have adjusted it and stall.

It is useually the cast iron section rather than the shaft that wears and needs rebushing with phosphor bronze or ptfe nylon to fix,at this point most fit a weber,but they do not work as well off road on hills as the stock hitachiand cost much more for a relatively small power gain than a proper fix to the original carb.