2 New Engines & High Temps

hharney · #1 11-12-18, 08:57 PM

Tom

I agree that a call to Continental is a good idea. Of all the vendors out there they are one of the best customer service.

Your oil consumption sounds good and indicates the rings have seated well, as John also commented. I was always told not to baby the new engine on break in but also that you should vary the percent of power some as not to keep it consistent. Sounds like maybe that has been the case.

I would want to see those oil temps higher if it were me and for all you cold weather flyers out there. The only way to achieve good oil temps in this season is cover plates on the oil cooler. I want to see at least 170 but hope to see 185 in the climb. If the oil doesn't reach these temps it will not flash out the moisture, very important in my opinion. What's your thoughts on this guys? I have always had to partially cover my oil coolers in the winter. I even had the cold temp baffles in the cowl and they never worked for me.

dan1000 · #2 11-12-18, 10:57 PM

On my engines, the ignition timing was set too far advanced, which resulted in increased CHT, while EGT was normal. Resetting the ignition timing on the magnetos to the correct value remedied the problem.

SavvyAnalysis was of great help in getting me an understanding of the problem, though my mechanic (Jay from Jay's Aircraft at John Wayne Airport KSNA, a real long-time pro, and also a pilot) came to the exact same conclusion without any prompting from me.

Dan

tomcomet · #3 11-13-18, 08:05 AM

Quote:

Originally Posted by dan1000

On my engines, the ignition timing was set too far advanced, which resulted in increased CHT, while EGT was normal. Resetting the ignition timing on the magnetos to the correct value remedied the problem.

SavvyAnalysis was of great help in getting me an understanding of the problem, though my mechanic (Jay from Jay's Aircraft at John Wayne Airport KSNA, a real long-time pro, and also a pilot) came to the exact same conclusion without any prompting from me.

Dan

I just signed up for Savvy Pro last night. I am waiting to see their take on things now...

edasmus · #4 11-13-18, 04:59 PM

I agree with Herb on oil temps. I've been covering my oil coolers in the winters for almost 2 decades now. Same engines all along. Temps below 50F equals one piece of duct tape across entire cooler covering about 50% of the cooler. Temps below 35F equals two pieces of duct tape covering about 90% of the cooler on the front and about 80% of the cooler on the rear. Temps hang out around 180F all the time. Cold oil is not good in my opinion for the exact reason Herb mentioned.

You can easily experiment with how much cooler to cover. If you cover a little too much, its an easy matter of reducing power somewhat and coming back down and readjusting. My bet is that won't happen though. My oil temperatures have always been more of a challenge to get higher.

Ed