Re: [FWDLK] Lack of glass bowl fuel filter and hard starting

[Dave Homstad <dhomstad@xxxxxxxxxxx>]

Dave,

I can't see where a glass bowl fuel filter makes any difference. My car 
has one with dual WCFBs. If there is fuel in the carbs, it starts 
instantly, but that is due to the high voltage ignition coil. It will 
fire any fuel/air ratio mixture.

If the car has been sitting for a long time, like over the winter, the 
carbs are dry. The starter must turn over about 10 seconds to pump 
enough fuel into the carbs to start. I like to crank it for about 10 
seconds and then stop, so when I set the choke, the accelerator pump 
diaphragm is not running on dry walls of the pump well and it makes a 
full shot of fuel. One stroke, one start.

I thought about using an electric pump so I wouldn't need the 10 seconds 
of cranking to pump fuel. But I decided that the cranking pumps oil into 
the bearings, lifters etc., and builds oil pressure up to 40+ lbs. 
Better than starting an engine quickly with no oil anywhere after 
draining down all winter.

The only advantage (other than filtering fuel) I see to a glass bowl 
filter is it may help to dampen the pressure pulses from a mechanical 
pump. Mine always has a little air trapped at the top, which should 
compress under a pressure pulse and then provide a continuous pressure 
to push the fuel through the needle & seat with a more even flow.

Dave Homstad
56 Dodge D500


On Sun, Nov 18, 2012 at 12:50 PM, Dave Stragand wrote:

> Just wanted to do a little poll. For those of you with the hard start 
> problems being discussed recently, do you still have the glass bowl 
> filter installed?  I had the same issues, but a fellow forward looker 
> suggested it was due to my missing glass bowl filter. True enough, 
> since I reinstalled one, the problem is resolved.
> -Dave
>
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