Hey everyone!
I had some time to work on it today. I got the plunger apart and cleaned up. That was quite a battle disassembling it!
I also took apart the distributor block to free up two stuck valves. I made a special tool to take the hex plugs out. I drilled a 11/64 hole in a 7mm allen socket. I am able to push in on those spring loaded valves now and they return.
Here is where I need some more advice from you guys who have lots of experience with these pumps. I can see the tops of the tappets that ride on the camshaft. As the engine turns over those tappets rise very slightly (.020) like they are supposed to, but then I have to tap them back down using a brass punch. I cannot push them down, they have to be tapped. I worry that the distributor block won't have enough spring force to push them back down either...
Is this normal? Would the fuel pressure inside the distributor block increase the down force on the tappets? Or should I tear into the pump further and remove those tappets and clean their bores. Thanks everyone!
I had some time to work on it today. I got the plunger apart and cleaned up. That was quite a battle disassembling it!
I also took apart the distributor block to free up two stuck valves. I made a special tool to take the hex plugs out. I drilled a 11/64 hole in a 7mm allen socket. I am able to push in on those spring loaded valves now and they return.
Here is where I need some more advice from you guys who have lots of experience with these pumps. I can see the tops of the tappets that ride on the camshaft. As the engine turns over those tappets rise very slightly (.020) like they are supposed to, but then I have to tap them back down using a brass punch. I cannot push them down, they have to be tapped. I worry that the distributor block won't have enough spring force to push them back down either...
Is this normal? Would the fuel pressure inside the distributor block increase the down force on the tappets? Or should I tear into the pump further and remove those tappets and clean their bores. Thanks everyone!