300C vapour lock?

["Wayne Graefen" <wgraefen@xxxx>]

Oddvin,

You should not be having vapor lock problems at 82oF. I would suggest you look at the following possibilities.
1. the internal and external condition of the hose connection at the fuel tank to the frame fuel line
2. the internal and external condition of the hose connection from the frame fuel line to the fuel pump
3. the pump itself may have a worn actuating arm or may have been rebuilt with an incorrect arm. Remove from car and compare to another pump.
4. it is possible there is excessive wear on the camshaft lobe which worksthe fuel pump arm but that would be unusual in a 392.

If you are looking for a high quality small inline electric fuel pump to place inline near your gas tank, member John Lazenby ( john@xxxx ) has these. I recently bought two of them for this exact purpose. John is at the Nashville meet right now but will be back at work early next week.

Wayne

Date: Fri, 13 Sep 2002 23:25:07 +0200
From: Oddvin Skråmestø <ragtopman@xxxx>
Subject: 300C vapour lock?

Hi.
This summer we have had the hotest summer ever here in Norway, several dayswith temperatures over 82F. Driving my 300C in this temperature, the engine stalls when idling, like stopping at traffic lights etc. After a minor stop or driving at a slow section on the road, the car hesitates when accelerating. It seems like a fuelpump failure, but only when hot. At startup cold, and at continuous high speed driving the car acts normal. When the car stops, it give me a hard time trying to make it run. I have never had this kind of trouble before, and I have also driven the car at high temperatures before too. Can a fuelpump start to fail when hot? Or is the heat making a vapour lock at the pump. The pump is 12 years old, could this be the first sign of wear?.
I'm planning to install an electric fuelpump to assist the original, and tohelp filling up the carbs after the winter rest.
What brand and type should I buy? Anyone with experience on this?

Thanks.

Oddvin Skråmestø
Norway.


[Non-text portions of this 


[Non-text portions of this message have been removed]