oil pressure problems
I recently re-built my '78 2000 Spyder engine and since then the oil pressure has been low. To be frank it wasn't too good before either, and I spent some time on the oil pump ensuring minimum clearances and no binding of the gears. I was advised to run on 15/50 rather than the 15/40 GTX I was using and this made no difference. Indicated 50psi on start up dropping to 30-40 at speed and almost nothing at tick-over. I have changed the sender for a new Jaeger unit and there is no improvement in the reading on the instrument. Today I tried a mechanical gauge which showed a reading of 70+ psi at start up (rising to over 80 with an increase in revs) whilst the gauge showed it usual 50 and did not rise with the increase in revs. I have earthed the instrument and got a full scale needle movement so that appears to be OK. What else can be done? Is there adjustment on the instrument and more importantly how does one get it out of the dashboard other than by a total dis-assembly of the centre consul and central dash area.
'57 Spider Veloce, '57 Lightweight, '60 SZ, '76 2000 Spider. '60 Sprint