I have about 60 hours on a -7A, O-360 w/ mags, stock cowl configuration. My oil temps are higher than I like to see. For example at 8500 ft. OAT 63 F my oil temps in cruise at 65% power are running 210-215 F. The CHT's are 370-380. I switched to the SW 8406 oil cooler (mounted on baffel behind #4) which only helped slightly. The baffeling seems to seal well & I have RTVed all the little spots where air could leak. I haven't had a problem with CHT's only high oil temps.
I have ordered louvers from Avery but have not installed them yet. I am hesitant to cut holes in the cowl unless it will bring down the oil temps below 200 F.
Anyone who has installed louvers, have they helped? What has been your experience? Are you sorry that installed them? Any other suggestions before I cut?
I have ordered louvers from Avery but have not installed them yet. I am hesitant to cut holes in the cowl unless it will bring down the oil temps below 200 F.
Anyone who has installed louvers, have they helped? What has been your experience? Are you sorry that installed them? Any other suggestions before I cut?