22-09-2012, 08:00 AM
(21-09-2012, 09:41 PM)Dan! Wrote: Have you got a transit cap on the front of the pump?
Upside down cold start mech on the front for fitting purposes, transit cover on the back to allow more travel in.
Dave reckons I won't see anything from having a more retarded starting position as initial pump pressure will move it beyond that anyway - but perhaps if I lower case pressure to suit...
Thing is without a test bench how the fudge am I supposed to set it up anyway, can prob get some stock book figures of what its supposed to be set to, but would be helpful if I could measure how much the piston is moving at given ipp? Might take it down to a diesel specialist when its built up and see if they'll run it on their bench depending on price.
The way I've filed it down, no need to shim the spring as haven't affected the seat, just allowed the piston more travel. It now allows full advance travel, compressed spring length isn't enough to stop it. So hopefully will retain stock response. actually maybe i should shim the spring to take up the difference made by spacing out the other end

Could have used a spacer to space out the end cap by same amount, but much easier to trim the piston than get something machined up, seal it and then shim the springs to suit.
Limiting factor now is slot in the case, but given the clearance with the governor wheel and cage I'm not going for this yet. I also think that with full travel, will be enough for advance up to 5k ish anyway.
Anyway, waiting on bits from the hydraulics shop now so I can get my ipp gauge installed. Then with any luck I'll get this on.