Heat bleed to sending unit - Team Camaro Tech
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post #1 of 6 (permalink) Old Jul 6th, 18, 02:12 PM Thread Starter
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Lee
 
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Heat bleed to sending unit

I was just wondering if anyone knows if there is any heat bleed from a set of headers to the sending unit located in the head. The reason I ask is because my temp gauge reads 205-210 when running.
It has a new 4 row radiator, new water pump, new 180 thermastat. The thermastat housing reads 180-185 when running after thermastat is open, radiator tanks read 178-180, all temps taken with thermo gun.
So, the only explanation I have is faulty gauge or heat bleed to sender.
Any ideas?
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post #2 of 6 (permalink) Old Jul 6th, 18, 04:17 PM
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Bill
 
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Re: Heat bleed to sending unit

There are some real engine experts on here, I'd wait for their opinion, but mine is that those temps are acceptable.
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post #3 of 6 (permalink) Old Jul 7th, 18, 06:55 AM
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Re: Heat bleed to sending unit

One thing you could try to confirm whether the sensor is being affected by the hedder (header), is to wrap the hedder (header) tube with heat-resistant wrap here. Nice cheap way to see if you are actually experiencing heat bleed....

Brett.......

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post #4 of 6 (permalink) Old Jul 7th, 18, 07:02 AM
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Re: Heat bleed to sending unit

Doubtful there is any bleed and pretty sure the sender is fine. I would expect the temperature in the heads to be higher since that is where the heat is generated. Your temperatures are fine imho....

Don

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post #5 of 6 (permalink) Old Jul 7th, 18, 09:02 AM Thread Starter
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Re: Heat bleed to sending unit

Would going to a 160 thermastat bring down the temp
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post #6 of 6 (permalink) Old Jul 7th, 18, 10:37 AM
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Jeff
 
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Re: Heat bleed to sending unit

The temperature in the head is hotter as your closer to the combustion chamber. What you are seeing is normal.

Thanks,

Jeff


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