just wondering what the safe operating temps of an A14 are in degrees

its alright i found this post

http://datsun1200.com/modules/newbb/v ... c_id=30955&forum=1#183880

but how hot is the H mark?

mine runs at about 185F, i have an autometer gauge, goes up a fraction when its stinking hot.

yea mine normally runs about 80C but today (45C outside) it got up to 107C and then i turned the car off

Just below 100C should be OK. If you have a 14psi radiator cap it can run hotter without damage.

The gauges are not calibrated, and vary as to what the H mark is.

well i'm running a mechanical aftermarket gauge so i dunno where the H mark is

in hot weather up here mine in traffic (kfc drivethru) will sometimes reach about 105 C which is very close to the inner hot mark. i have found that some of the older guages are way off

mine reads just above half when at opperating temp on the stock gauge and 175 f on the mechanical gauge. when it gets to 190 f it is just below H. I tend to get scared when it gets to almost 200 f as who knows how accurate the gauge is bit also the car tends to run no hotter than 185 any other time.

so at 205 f its over H on the new gauge.

pic with old mechanical gauge

on that gauge my car would read bout 225F