Thread: I hate twin carbies

At a wild guess I would say that your needles and seats are so worn that the demand from the engine at idle is smaller than the rate of leaking.
This will happen to any carby if old enough.
Maybe your float has sunk. Must use a bit of fuel!!!!
An overhaul kit and maybe new float will fix.
Regards Philip A

Originally posted by PhilipA
At a wild guess I would say that your needles and seats are so worn that the demand from the engine at idle is smaller than the rate of leaking.
This will happen to any carby if old enough.
Maybe your float has sunk. Must use a bit of fuel!!!!
An overhaul kit and maybe new float will fix.
Regards Philip A

Check the float levels also. Ensure both floats are at the correct height and the fuel is shutting off.

Trev.

Originally posted by disconut+--><div class='quotetop'>QUOTE(disconut)</div><div class='quotemain'><!--QuoteBegin-PhilipA
At a wild guess I would say that your needles and seats are so worn that the demand from the engine at idle is smaller than the rate of leaking.
This will happen to any carby if old enough.
Maybe your float has sunk. Must use a bit of fuel!!!!
An overhaul kit and maybe new float will fix.
Regards Philip A

Check the float levels also. Ensure both floats are at the correct height and the fuel is shutting off.

Trev.[/b][/quote]
Yep.. thst would be where I would look first.

I put new needles , diaphams and gaskits in them not long ago.
And float levels have been checked when I had an electrical prob in Jan'
Thought it was carbies but turned out to be arking wires.
Don't get me wrong , I am very good with engines , rebuild them for kicks however I have had little to do with Rover twin carbs.
I think It may be the choke system playing up as I now all other systems are ok. I just need someone to tell me if that is possible and if yes how would it happen?

cheers

<span style="color:blue">so it was working ok till now.......?

or has this been happening since jan...?</span>

Just thinking it through the only explanation I can think of is needles and seats. Either you have stuffed up, which would be hard or one of your floats has decided to die. Is it one carby or both???
The choke depends on a number of gaskets on the side of the carby which progressively open apertures for fuel to flow through into an additional jet/circuit as a disc is turned . I think the only way it could malfunction is if the gaskets broke up or suchlike. Or the choke is not going off when you push the control in.
You have not disconnected the return fuel line to the tank have you? ( or fitted a higher pressure fuel pump) as that regulates the fuel pressure in the carbs to I think 4PSI
Regards Philip A

G'day again
No it only started about three weeks ago.
It's only one carb , the passengers side one.
All pipes , pump ect. are factory.
Will check floats again just to be sure I didn't miss anything ops: .
Oh.. I hate twin carbies .
Give me a Weber anyday .

Thanks guys.

Originally posted by joe
G'day again
No it only started about three weeks ago.
It's only one carb , the passengers side one.
All pipes , pump ect. are factory.
Will check floats again just to be sure I didn't miss anything ops: .
Oh.. I hate twin carbies .
Give me a Weber anyday .

Thanks guys.

At least you said Weber, not Holley :x :x Still can't beat EFI

Had a Holley once, hated it and a complete waste of space on a RR. I've never had any real issues with the strommies and I can't think of any other carb to fit to a Rangie IMO The auto choke ones ate crap though (My old man had an 81 Rangie with auto chokes and that was shocking).

Hope you sort your problem out. Good luck with it.

Trav