Unless I am mistaken, there were 3 different pressure caps used on the
roadsters. The 1500s used 3-4lb caps, the early 1600s used 7 lb caps and
the 67.5 - 70 cars used a 13 - 15lb cap.
Sid
>From: "datsunmike" <datsunmike@nyc.rr.com>
>Reply-To: "datsunmike" <datsunmike@nyc.rr.com>
>To: <Chris.Brucciani@ercgroup.com>, <datsun-roadsters@autox.team.net>
>Subject: Re: Overheating Problems
>Date: Fri, 4 May 2001 08:48:52 -0400
>
>A higher pressure should make the car run cooler, not hotter. The Roadster
>uses 7 lb. pressure caps.
>
>Mike
>
>----- Original Message -----
>From: <Chris.Brucciani@ercgroup.com>
>To: <datsun-roadsters@autox.team.net>
>Sent: Friday, May 04, 2001 8:01 AM
>Subject: Overheating Problems
>
>
> > Dave Stoll wrote - "Could some of the "spiking temps" have come from a
>weak
> > pressure cap
> > which could not always hold pressure which would keep the temp down?"
> >
> > One thing I notice on my car is that on the overflow the pressure cap is
> > rated at 13lbs. I remember something about the proper pressure being in
>the
> > 5lb. neighborhood. Could this be a contributing factor to my highway
> > overheating? Drove it in to work this am - temp. gauge reading right
>down
> > the middle. BTW - visual inspection of my radiator core does not reveal
>any
> > corrosion and I have the factory air deflector under the car. Weird.
> >
> > Marietta, GA
> > 1968 2000
> > 1973 240Z
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