M20E CHT question

[Swingin]

Since my last annual (about 60 flight hours) my #3 CHT has been consistently higher than the other three. The probe on #3 was changed to a gasket style probe during the annual. I've read that the gasket style sensors can read up to 50 degrees off, but seeing 390-430 on #3 is disconcerting. Low 300s on all the rest.

I've had the baffling inspected, and it is fine. The EGTs are unchanged from before the annual.

Any questions I should be asking or things I should be looking at?

Thanks

[Swingin]

Did some more searching here after I posted (wrong order to do it in, I know) and answered my question. Kindly disregard!

[Marauder]

Nice meeting you!

[DonMuncy]

Tell us what you found. It may help someone else.

[HRM]

Did some more searching here after I posted (wrong order to do it in, I know) and answered my question. Kindly disregard!

 

My #2 runs hot, what did you find reference your issue?

 

Thanks.

[DrBill]

My CHT of #3 runs hot ONLY above 5000 ft !!  Go higher and it goes up, get back to 5K and it's back in line with the others.   Tell us what you found !  My A&P is looking at it now while in annual.

BILL

[Swingin]

Not sure if this is helpful for either of your situations, but the gasket-style probe reads 50-75 degrees hotter than the bayonet style, which it replaced. Again, mine were fine before, all low 300s at cruise. Now just the reading with the new probe is high.

If everything else checks out, look at the probes themselves, before getting too deep into the engine itself.

[Oscar Avalle]

My CHT 3 also runs higher than the other ones. I tried everything but it is still above 390. It seems to be something typical of the M20c.