TD Pump question

[rabbitpower]

I have an 86 TD 1.6. I also have a 92 NA engine that has a pump that looks very similar. Can parts be swapped between these pumps? What are the major differences. Great site by the way!

[burn_your_money]

What parts do you want to swap and why?

They are very similar but very different at the same time.

[rabbitpower]

I wanted to know in case the pump on the TD dies. That and i would like to experiment a little. I have only had an IP apart a few times and never knew you could modify them. I also noticed that the 92 cyl head has the same part number as the 86 TD. I had heard somewhere that Vw just canned the TD speacialties ( Coated valves and tougher alloy) in favor of just making the NA and TD heads the same after a certain year. Is this true?