Re: Re: Adjusting fuel mixture

["content22207" <brobertson@xxxx>]

Volvo's don't have Lamda systems (nor does my R30).

Speaking of which, has anyone ever experimented removing Lamda valve
from the fuel loop? My fuel distributor is externally different so
don't know if lower chamber technology even applies (have a dimple
where DMC port is but not drilled & tapped). Seems reasonable you
could plug lower chamber port with a bolt (AND COPPER WASHER) and
route return line directly to tank.

This might be situation where fuel mixture needs to be adjusted to
compensate for new fuel distributor dynamics.

Anyone want to try?

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote:
> IMHO this procedure assumes too much. There is no way to know if 
> everything else is PERFECT except the fuel mixture adjustment and this 
> is not a very accurate way to set the mixture screw. The injector 
> could be dirty or just a little tight. You really have to put 
> the injector in a tester to clean it and check the opening and holding 
> pressures. A better way to set the mixture is with a dwell meter 
> reading the lambda system. Better yet leave the mixture adjustment 
> screw alone, turning it won't "fix" anything. BTW this is a VERY 
> sensitive adjustment, 1/8 of a turn can make a BIG change. Just make 
> sure there is a good sealing plug in the housing above the screw. A 
> plastic golf tee fits nice.
> David Teitelbaum
> vin 10757

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