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**Gregski** · 01-27-2018, 08:05 PM

so for those of you suggesting for me to get the thermo gun, here it is

when the gauge read 159* this gun showed 156* pointed at the cylinder head, same on both sides, and 156* when pointed at the intake manifold by the thermostat as well

pretty similar results when the gauge was at 171* it showed like 169* on the cylinder heads

BUT...

slide that gun one inch either way on either surface and it can jump by as much as 20* or 30* so I just don't get the point because the gun readings are so inconsistent with the slightest of movements

dragging the gun across the top rubber radiator hose fluctuated the reading from like 88* to 135*

01-27-2018, 08:05 PM	#75
Gregski Post Whore Join Date: Aug 2014 Location: Sacramento, CA Posts: 10,803	Re: 71 350 running hot coolant backup up problem so for those of you suggesting for me to get the thermo gun, here it is when the gauge read 159* this gun showed 156* pointed at the cylinder head, same on both sides, and 156* when pointed at the intake manifold by the thermostat as well pretty similar results when the gauge was at 171* it showed like 169* on the cylinder heads BUT... slide that gun one inch either way on either surface and it can jump by as much as 20* or 30* so I just don't get the point because the gun readings are so inconsistent with the slightest of movements dragging the gun across the top rubber radiator hose fluctuated the reading from like 88* to 135* Attached Images Last edited by Gregski; 01-27-2018 at 08:31 PM.