thegreyghost
Well-known member
bubba22349":2lcv1fnf said:The ball I think is 1/8 or 3/16 inch it will seal in the tapered hole in the bottom, the ball goes in first then the weight is on top of it. If the ball is missing then that is probally why the pump shot isn't good. Yes the ball is easily lost and also sometimes wrongly left out during a rebuild. On the main well tube if you can gently try to straighten it again examine it for cracks between the holes. If you have a tube that will slide over it may help in the straitening in any case they are quite soft and easily damaged so be real carful or else you can also just leave it alone. Good luck Edited with adistional info four times last was on Sunday 12:05 PM
How are you doing on the carb?
Holley / Autolite 1940 Carb Manual
http://www.carburetor-parts.com/assets/ ... manual.pdf
In above manual you will find all the basic settings for float level, choke set up, and testing the fuel pump discharge. If you find that the fuel pump discharge test doesn't work as it should, you may have to stake the ball lightly into the carb base. After that you would need use another new ball to replace the one you hammer on fairly sure that these were a 1/8 inch SS ball.
Later on you need to check your total timing and you will need to make some extra timing marks on your Dampener or timing cover at 30 to 45 degrees in about 2 degree increments. You can use a machinists 6 inch steel rule to measure from you existing timing Marks or you can use some timing tape. The "Total Timing sweet spot" will probally be somewhere around the 32 to 36 degree range. Good luck
Question on total timing. I assume there is a specific rpm range I'm looking to be in at that advance. According to the info I found from Mallory, if the dizzy has the stock springs and stop bushing, It should advance 21 degrees @ 4000rpm. That should give me 33 degrees @ 4000 - correct?