I thought I would add an update on my injection pump.
As you know I gave up trying to send my pump as a core into the USA because at that time nobody could predict what amount of tariff would be applied to it. And after calling around I found a shop that I felt had the experience to do a proper rebuild
When I brought it into Chatham fuel injection the owner recognized it as the last iteration of the ford idi pumps. Since mine is a 1994 it showed he knew something about these pumps. Made me have more confidence in this shop. He told me he should have all the required parts in stock.
When I picked it up I asked him what shape the pump had been in. He then told me that while he stocked oversize advance pistons to .006 he had to special order a .010 oversize piston to repair that bore, and the cam ring had been very well-worn.
I also asked him what he thought about the lubricity of today's diesel fuel and whether I should be using an additive.
He told me that filtration was more important than an additive. Although there was nothing wrong with using an additive also.
So i installed the pump along with new r&d injectors. Thankfully r&d did not need cores. And took the truck for a 5-mile run today to see how it ran with the new parts.
With the old pump which was timed to 6 btdc it would take about 15 seconds to reach 60 mph.
Today it only took about 10 seconds. Big improvement.
I do need to check the timing, which I know I should have done first, but when I got the pump primed and running I could not resist going for the ride.
Now I can not predict the long term reliability of this pump, That will only take time. But my impression is this company knows these pumps and does a quality"stock" rebuild. If you are looking for more performance they do not do that.