Marc,
I run the other type with the centered spring and it makes no difference. I
run a 160 and it doesn't help as the cooling system is marginal on these
cars but I do believe that the design of the cooling passages in the block
and head are to blame also. Several heads I have have pitting around the
thermo housing due to cavitation. I spoke to a few people and showed them a
head and they said it was the design that caused the problems. Water/AF
doesn't like hitting walls and then traveling 90 degrees to get out. I got
one welded up and changed the angle a bit. We'll see if that helps.
If you removed that ugly valve then run with the heater cracked open a bit.
FWIW, the entire cooling system in my car is either new or in excellent
shape - the oldest part is the heater core and that has been flushed too. I
run a triple row 2L rad and a Spal 14" fan. I also use Waterwetter.
Mike
----- Original Message -----
From: "mtyler" <mtyler@hctc.net>
To: "datsunmike" <datsunmike@nyc.rr.com>; "aaron atkins"
<amatkins@qnet.com>; "datsun list" <datsun-roadsters@autox.team.net>
Sent: Friday, May 03, 2002 9:00 PM
Subject: Re: overheating/ troubleshooting
> datsunmike wrote
>
> >My 1600 ran hot too. I had the rad recored which helped a lot. Don't get
one
> >of those hi-efficiency rad cores as they have too many fins and block
> >airflow. Also make sure it's a 3 row core.
>
> My '701600 runs a tad warm when the heater is on, too warm for comfort
> when the heater is off. This is all since a rad rodding out, new presmog
> recurved dist, new hoses, new sender, new thermostat. The thermostat
> (from the NAPA store) looks different that the one that came out. The old
> one had a larger, centered opening. the new one has a smaller opening
> which is off-center. Am I running the wrong thermostat? A lot changed
> at once.
>
> -MarcT.
>
> ==========================================================================
> Marc Tyler Sisterdale TX
> 1970 1600 #SPL311-31016
> 1965 L-320 #L320 013642
> http://datsun_marc.tripod.com/cgi-bin/datsun_homepage.html
>
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