Originally Posted by davesail
my injector pump on my perkins 354 is leaking at the point where the linkage enters the pump, not a lot just a drip every 15 -20 seconds
1. Will this let air into the system and shut down the engine?
It has not yet but will it if it gets worse?
2. Rebuild the one I have or get a new pump?
3. has anyone done this and what was the cost factor?
1. Possibly, depending on where and how large the seal breach is. The best way you can find out is to take a clear piece of vinyl hose and run it from the return port to your return line. If you see air bubbles, then you have air. It might not shut the engine off, but it will degrade performance.
2. I would get the pump rebuilt. There is no reason to purchase a new one unless the old one is not rebuildable. Rebuilds of injector pumps will always be more cost effective than buying a brand new one.
4. If you are able to get away with a simple resealing, it should cost under $500. Try calling Diesel Fuel Injection Service in Portland, OR. They have rebuilt several pumps for me and are highly skilled. I have mailed the pumps to them and have gotten them back in about a week.