smokyray(at)yahoo.com Guest
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Posted: Thu Jan 31, 2008 11:20 am Post subject: No Title |
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My airboat friends around here all run IO-540's and tell me blowby is pretty common, especially on the 540. Airboat engine guys claim it is the length and depth of the sump combined with 6 cyllinders banging away creating the pressure.
Most of the airboaters I have met have notches cut into their dipsticks at 6 qts (as do I). They also abuse their 540's to reassure us flyers of the strength of the engine. My local airboat lycoming friend showed me several racing airboat 540's brought in for overhaul. One had been run at 3500 RPM for an entire race with 2 qts remaining due to a cracked oil cooler with no damage. They also routinely see 500+ CHT's since they don't use baffling and are pushers. I asked why they liked the 540 so much, he said " limps home on 5 just fine"...
Of course, they are afloat, not airborne, but it's still nice to see...
RR
laboggan(at)mywdo.com wrote:[quote][b]
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