I would like to pick up this thread and ask for some input.
I have an RV-6 with O320 H2AD. I bought the plane; I'm not a builder. I've had the airplane a few years but have not flown it much as it was having some work done on the panel the past 18 months.
I've been flying now for about 20 hours and have been experiencing cooling issues. Oil temps are often in the 210+ range when doing pattern work, touch and gos. I have seen it approach 230 on hotter days, 85-90 f. I haven't paid enough attention to CHTs, but I do recall seeing temps in the mid 400s. I have my max CHT alarm set at 450 and I think it has gone off once during a takeoff climb, but then dropped enough to go off. I will be paying more attention to these numbers in the coming days.
I've read numerous threads on baffle seals, and I've taken some pictures of mine with the upper cowl off. I'm thinking I may need to do some work on my baffle seals. There are quite a few gaps between the seals and the aluminum in between the rivets. There are also holes in the rivets themselves, and you can see right through them. Parts of the baffle seals are wavy and don't look like they could be providing a very good seal.
One other concern I have is that it looks like one of the vertical rows on my oil cooler is blocked. From the back side, I count 8 rows, but looking through the air entry hole in the baffle, only 7 can be seen. Is this a mistake in the build? Could it cause high oil temp issues?
Please see the pics, and any input would be appreciated.