could also have blocked passages in the block ?
Russ southwell
70 1600
----- Original Message ----
From: Ritchie Labate <rlabate@sbcglobal.net>
To: Datsun Roadster blog <datsun-roadsters@autox.team.net>
Sent: Thursday, May 3, 2007 3:51:27 PM
Subject: Radiator/hose/block temperatures
Hey everyone,
I'm trying to diagnose some overheating on my '68 2000 (Stock engine,
electric fan). The temp guage usually passes the midway mark, sometimes
approaching, but not reaching the 240 mark, then I shut it down.
Using an infrared thermometer, I measured the following:
Radiator- 205' throughout various locations
Upper/lower rad hose- around 190'
Engine block- 225'
Valve cover- 170'
Thermostat housing- 190-200'
Questions:
1. what are normal temps for the above? Radiator?
2. theoretically, should the thermostat housing register the same temp as the
preset thermostat? (ie 160 or 180, I don't know whats in there)
3. is the engine block temperature really that high?
4. where should the temp gauge register under normal operation?
5. where do I start? new thermostat, recore rad?
Thanks, folks!
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