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petehowell 09-02-2019 06:20 PM

2200 Hour Report and Pics
Just back from Big Sky, Teddy Roosevelt NP, and Iowa Trips. Hobbs flipped over 2,200, so I dropped the oil.

Filter and screen had some carbon chunks, and the filter had just a tiny amount of fuzz attracted to a neodymium magnet.

Compressions were 77-78-77-77. Valves looked pretty good!

We are going to continue to run and watch her carefully. Local A&P says many O-320s will go 2,600 hrs+ if they get flown.

O-320/Carb/EI/Mogas/Lots of LOP

#1 -




BillL 09-02-2019 07:35 PM

The combustion side is looking great, I assume the oil sample analyses remaining consistent?

petehowell 09-02-2019 08:22 PM

Hi Bill,

I have not pulled a sample for analysis in a bit. I will do that.

Vlad 09-02-2019 09:10 PM

Nice looking valves Pete. Keep it running don't stop. Watch closely do not abuse it. I personally know a motor like yours making double time +. ;)

F1R 09-02-2019 09:28 PM

What Bore scope?
I bet you have been asked before, but those are some very good photos. What bore scope are you using? PC/ android or Iphone /Mac to record them?

long live the 320!

DeeCee 57 09-03-2019 09:24 AM

... wild guess, a VA-400 or 800?

Long live all the used engines ;)

Steve Melton 09-03-2019 03:14 PM

looks good
keep going and monitor. thanks for the valve documentary.

rvsxer 09-04-2019 07:20 AM

The pipeline patrol company at our airport runs their O-320's 4,000 hours. No problems at overhaul. They do oil analysis, and all the accessories get changed on a time schedule. I looked at one the other day that had over 3,000 hours on it and it was still getting 12-13 hours out of a quart of oil with the original cylinders. You can imagine how much they fly, and that is probably the main reason the engines are going so far.

avrojockey 09-30-2019 01:31 PM

Forget Lean or green, I'd say those valves are CLEAN of peak :D

petehowell 06-29-2020 02:57 PM

2300 Hour report!
Not much has changed at 2300 hours. She is still running great.
  • Filter and screen had some carbon chunks, nothing more.
  • Compression #'s were 77-76-77-78 with a warm engine. Valves looked pretty good!
  • As mentioned previously - We are going to continue to run and watch her carefully.
  • Titan O-320/Carb/EI/Mostly Mogas/Lots of LOP

Valve Porn - the cheapo camera was not super sharp this time, but did the trick





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