RudiGreyling
Well Known Member
Rvators,
my #1 is showing low in comparison to rest on 75H and I hear hissing at the oil filler and breather during its blow by test.
73,78,79,80,78,78 (1..6) Over 80
It is new IO-540 straight from Vans. After first test I took the airplane out and flew it hard for 30 minutes. EGT and CHT normal. Retest Blow By, Same result on #1. The airplane is now 1 year old.
I am an experienced kitbuilder, but not engine man. So is this something to be concerned about? I'd like to fly away to a holiday destination this coming weekend, but a little concerned on #1 result comparitive.
Any advice or additional tests appreciated?
Rudi
PS: In hindsight I should have taken tests on 25H, 50H oil changes too, but never thought required on a new engine, and required before its 1st annual test. So sorry I dont have a trend.
my #1 is showing low in comparison to rest on 75H and I hear hissing at the oil filler and breather during its blow by test.
73,78,79,80,78,78 (1..6) Over 80
It is new IO-540 straight from Vans. After first test I took the airplane out and flew it hard for 30 minutes. EGT and CHT normal. Retest Blow By, Same result on #1. The airplane is now 1 year old.
I am an experienced kitbuilder, but not engine man. So is this something to be concerned about? I'd like to fly away to a holiday destination this coming weekend, but a little concerned on #1 result comparitive.
Any advice or additional tests appreciated?
Rudi
PS: In hindsight I should have taken tests on 25H, 50H oil changes too, but never thought required on a new engine, and required before its 1st annual test. So sorry I dont have a trend.
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