 CHT Temp, What is the upper operating limit? |
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| ericread |
 Oct 11 2008, 08:15 PM
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The Viper Blue 914  Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California  |
Based on the converstaions here,I drove over to Corona, CA (Aircraft Spruce) this afternoon and purchased the Micro 1000 CHT, a sensor and a 15 foot extension cable. It's all installed and looks great in my original center console.
So where is the danger point? Some posts say that hitting 400 degrees will cause a valve seat to fail. Others say they regularly see 375 to 400 degrees on their longer, higher speed drives. Where is the point that indicated engine heat danger? BTW: 74 2.0L all original FI w, standard exhaust. My thanks. Eric Read NOTE: Please note that this was originally posted in a CHT topic post. After about a day, I received no responses, so I am re-posting it as a unique topic. Cross-Posting Disclosure: Cross-posted to the "other" BBS (Saturday, 10/11/08) as a result of no response on this BBS. |
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| r_towle |
Oct 12 2008, 07:40 AM
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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If you take a head and put it in the oven with the chamber facing down...then heat the head to 400 degrees and let it sit like that for 20 minutes....you may see the valve seats come loose.
that is the tolerance for these heads so if you are running temps that high, your timing may be off, you may need different oil, you may want better plugs, your cooling tin may not be attached correctly/leaking/missing parts... Your engine may also be filthy underneath the head tin... Rich |
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Posts in this topic
ericread CHT Temp Oct 11 2008, 08:15 PM
ericread By the way: The cost for the gauge, sensor and ext... Oct 11 2008, 08:24 PM davep About all I can recall at the moment is Len saying... Oct 11 2008, 08:49 PM 7275914911 There is a good info on CH temps in the Tech Artic... Oct 11 2008, 10:03 PM
ericread
There is a good info on CH temps in the Tech Arti... Oct 12 2008, 12:02 AM toon1 your good! :D
Those temps fall well within... Oct 11 2008, 10:56 PM toon1
If you take a head and put it in the oven with t... Oct 12 2008, 09:22 AM Jake Raby Sensor location is key! You must install the s... Oct 12 2008, 06:22 PM ericread
Sensor location is key! You must install the ... Oct 12 2008, 07:07 PM |
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