the fuel collar is the circular thing that sits around the plunger. its the actual injection quantity adjuster.. the governor directly controls the fuel collar, and if its not seated properly, then your pump will never build enough pressure to deliver fuel.
In the pictorial you will find about half way through this line:To align this part, the drive pin for the piston (marked in green) must be aligned with the key in the pump's shaft. The pin he is talking about is on the cam plate. Since the cam plate can be inserted two different ways if you don't align the pin to the key way on the front shaft where the pulley that is spun by the timing belt your install ends up 180 out. I don't know how you can tell from the outside if the pump is rebuilt 180 out without seeing the pin position relative to the key way.
I think you're better off fixing your turbo pump (if that's what you have) rather than putting on the NA pump you just bought for obvious performance differences between the 2.Here's a thread (with pics) of similar problems as you're having.http://www.vwdiesel.net/forum/index.php?topic=26904.0It's called the control sleeve in the pics, which better illustrate how fuel flows through the pump than the pump rebuild pictorial.
Quote from: ORCoaster on September 22, 2011, 10:18:48 pmIn the pictorial you will find about half way through this line:To align this part, the drive pin for the piston (marked in green) must be aligned with the key in the pump's shaft. The pin he is talking about is on the cam plate. Since the cam plate can be inserted two different ways if you don't align the pin to the key way on the front shaft where the pulley that is spun by the timing belt your install ends up 180 out. I don't know how you can tell from the outside if the pump is rebuilt 180 out without seeing the pin position relative to the key way. That answered my question about the inside of the pump. Thanks but what about the outside of the pump. you know how the IP gear has 2 places to lock the pump down.. How do you know what hole is right?
Since im waiting for that pump. I done a compression test to eliminate other possible no start problems... But the problem is i am using a Harbor Fright compression tester which is probably 50-100 PSI off because the adapter that sticks in the injector hole leaks like an SOB!What a Piece of ***. Cyl. 1- 300PSICyl. 2- 300Cyl. 3- 300Cyl. 4- 280 I know thats pretty low but i figured all rebuilds start out pretty low since the rings are not seated yet. Also the tester plays a part in the low test scores also