Those pressures sound OK to me. I have a newly rebuilt engine also, a 2180. Start cold OP is 50, after the oil warms up, it goes down. I am not an expert on this, but I would not be too concerned. What do you expect it should be? Have you consulted the GPASC manual? It does not sound like you have a bad sender, to me.
See N64KR at http://KRBuilder.org - Then click on the pics See you in Mt. Vernon - 2006 - KR Gathering There is a time for building and a time for FLYING and the time for building is OVER. Daniel R. Heath - Lexington, SC -------Original Message------- Any suggestions as to where to start trouble shooting? Although the pressure gauge varies with rpm and oil temperature, is it possible that I have a bad sender unit? Does anyone know the distance from the bottom of the relief valve piston and the outside edge of the hole?
