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Well.... more on our 172 M, purchased in Dec with 2600 SOH...
(we call "On conditio" here in Canada) ... The bird sailed through it's anual/100 hr inspection requiring 3 cowl mounts...2 we knew about, one other was torn 1/2 way when I yanked on it... Borescoped the engine, valves/seats all look good, plugs clean and burning well, burns 1 litre of oil in 11 hrs... Compression "way above 70" (mechanics words) at all 12 points... Engine pulls strong and very smooth, fires/starts in 1/2 rotation... Came out of a flight school, 2600 hrs since June 2001... Tach checks show 2350 RPM static when new, still shows 2350 static on the TO run... We are going to run the sucker till something starts to show... Wish us luck! Dave On 8 Mar 2004 13:08:14 -0800, (One's Too Many) wrote: Paul Folbrecht wrote in message thlink.net... How common is this? I am seeing some 152s for sale with engines as high as 3000 hours SMOH. Surprising. (Well, to me!) O-235's seem to last forever, with an utterly bulletproof bottom end. Usually last even longer than an O-320, which is basically the same engine but with larger bore. |
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![]() Compression "way above 70" (mechanics words) at all 12 points... You have a 12 cylinder engine? Nope! Pressure checked at DTC, BDC & mid travel of piston in each of 4 cyls.. Total 12 locations.. Hope I have the terminology right, new to me.... Sorry, no Merlin here... ![]() snip Tach checks show 2350 RPM static when new, still shows 2350 static on the TO run... On the T/O run is not "static". Good point, but holding on the brakes (short field procedure) , running to full RPM and then releasing... Check RPM max before the roll... Close enough? Dave |
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