Geoff,
Your needle valve is shot or the float is set incorrectly. What is
happening is that the level of fuel in your tank is higher than the carbs
and the fuel is trying to reach equilibrium. Since the needle valve in the
rear carb is not closing, the fuel just continues to flow. It will stop
when the fuel level in the tank gets lower than the carb.
The fuel pump does not have a check valve and will not stop the flow of
fuel.
The fix is to replace the needle valve and set the float. It's not too
tough, but you should buy a kit for both carbs and do them together.
Finally, before you start the car, think about where all that fuel has been
going! Check your oil level. If you have way more oil than normal or it
smells like gas, do not start the car. Drain the oil and replace.
I've been here. I now check the oil every time I start the car. Not so
much to see if I'm low, but to see if I'm high.
Peter Macholdt
609-466-2127 Phone
> From: Gameparker@cs.com
> Reply-To: Gameparker@cs.com
> Date: Fri, 23 Nov 2001 11:50:29 EST
> To: 6pack@autox.team.net
> Subject: HS6 Carb Conversion
>
> List,
> thanks for your respective replies. I was indeed using a lightweight oil in
> the dampeners- changing to engine oil as some recommended along with sorting
> the linkage, did solve some of the problems I was having. Still have
> extremely hard starting when warm, however, but I think I've found the cause.
> After a run today, I removed the pistons to change to the richer BAX needles
> that were supplied with the carbs on purchase (incidentally, engine runs MUCH
> better with the BAX needles no 2500-4000 rpm hestiation now). When lifting
> the piston/needle assembly out, petrol started to gush and spurt out of the
> jet and flooded the carb body at an alarming rate. Duplicated this situation
> many times. This is probably what is causing my hard starting when warm. I
> immediately disassembled the front carb and it was fine, no flooding. Why do
> you think that this is happening to the rear carb only? If the fuel system
> pressure was too high, it would be happening to both carbs (incidentally, I
> am running the stock mechanical fuel pump). List, your collective wisdom
> please, as I've sworn not to touch the carbs without hearing from you first!
> Cheers and Regards
> Geoff
> P.S.: Sounds obvious, but pump not running when this happens!
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