TwinTurbo.NET: Nissan 300ZX forum - Your assumptions are correct.
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Subject Your assumptions are correct.
     
Posted by collegeboy on October 24, 2009 at 12:34 AM
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In Reply To TT P/S Pump with Hicas removed. posted by kkrofft (OH) on October 23, 2009 at 10:57 PM
     
Message :So I have read frequently how people are looking for N/A pumps when
they remove the Hicas system since the TT pump is a dual pump and the
second pump is no longer used.
:I took a look at the FSM exploded views for the TT pump and it appears
to me that the TT pump should work fine with a few small mods.
:First remove the back of the pump and take out all the vanes in the
pump rotor. Reassemble. Then cap off the pressure port.
:By doing this, the second pump will not generate any flow. The rotor
and shaft will be lubricated by the oil free flowing into the pump through
the intake port. It might be good to open the capped off pressure port
long enough to bleed any trapped air.
:Cap off the extra reservoir port and it should work just fine.
:I will mention that I have not actually done this but I do work with
hydraulics and I see no reason why this would cause any issues. Let me
know if you think I am overlooking something and if you try it, please let
us all know how it works.

Thanks,
Mike
1991 Black 3.0 Twin Turbo

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