I swapped my W124 Merc 2.5 IDI to 2.9 DI OM602.98 engine. So I needed mech. VE pump, I went for the easiest way for me and built one.
I used VW Golf pump body and a lathe to fit 20mm shaft and all other Merc's pump internals into Golf's pump. Everything is fine, car runs great, starts perfectly. You can almost say the build went fine, but my sar does not feel like 300nm beast like it should be in stock.
I turned the fuel increase fuel to the point where rpm's increasing on it's own, so it should be maxed out. I also did a governor mod and it got better. So I asked guys from STD forum whats wrong and they told me that the mech pump governor lever does not move the control collar enough and governor lever needs modification to give that extra stroke. And also mentioned guys from VW forum have done it but the DIY thread was gone.
So maybe there is someone who can help me, would be great.