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> CHT Temp, What is the upper operating limit?
ericread
post Oct 11 2008, 08:15 PM
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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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davep
post Oct 11 2008, 08:49 PM
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About all I can recall at the moment is Len saying he uses a 400 degree oven to allow the valve seats to drop out of the heads. Based on that I'd say 350 is a decent limit.
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