Offline, Marcus Tooze <tooze@vinny.cecer.army.mil> replied:
> Surely Dan, if one of the floats are stuck closed, and no fuel is
> getting thru for three of the cylinders, they won't be firing at all,
> and it will be very difficult for the engine to even run, let alone
> idle too fast??
You'd think so, wouldn't you? My only explanation is the balance
connection in the intake manifold; arguably enough fuel/air
mixing went on in the manifold itself to get some fuel from the
rear carb into the front 3 cylinders. At any rate my engine
would stammer and cough until I adjusted the idle to about 2000,
at which point it seemed to run ok. When I opened up the carbs
the front one was bone dry with a decidedly stuck float valve.
Unsticking it fixed the problem and I was able to get the idle to
the book value of 650 rpm without any trouble.
Warning, bad ASCII art ahead.
(dry (wet
carb) carb)
____||_______||____
| __ __ _ __ __ |
|| || || || || ||
1 2 3 4 5 6
<--leaner------richer-->
If you're using those performance intake pipes without a
balance tube I can see why you'd expect 3 completely dead
cylinders, as opposed to something likr this.
- Dan
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