rhtrudder
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Everything posted by rhtrudder
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Thanks for the help , got to fly a mate to Griffith tomorrow so I will do the test on the hot engine and let you know,
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Engine fitted to a sabre , I'm the third owner , had 400 hrs up when I bought it, never had any issues with it, read somewhere the compression needs to be above 85 before a rebuild, if flying with one soft cylinder can that have any detrimental effect to the engine
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How many hours have you got on your engine?
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I will give that a go
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First I wound the hot engine over on the starter to check what the compression looked like between the cylinders 3 at 125 last one at 110 Leak own test had more air coming through the tank than the other 3 , might not be a big deal to just change the rings, but only guessing
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Still haven't given up on rebuilding my engine , heard they can last up to 3000hrs but am I bit disappointed on the compression loss
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It's hard to see why it costs 10k to fit a turbo , doesn't look like it's that difficult
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Engine has 1400 hrs on it , compression down consistently on one cylinder over the last 200 hrs , guessing it's going past the rings , doesn't seem to be using any oil so I will keep flying it , just looking at all he options, I believe the 80 is a lot cheaper than the 115 and maybe keep the original for spares
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WE have turbo chargers on most of the engines on the farm with high hours , never given any trouble , but unsure of the life on the rotax
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Starting to wind a few hours up on my 914, looking at engine rebuild or replace , terrified of the cost, would it be possible to convert the 80hp 912 to a 914 by swapping all the 914 bits over , carbys airbox exhaust and turbo , worth a thought
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I put a lot of faith in my gauges, after start up which is when I picked up the initial problem, and climb out ,not all,but most of these problems seem to occur when the engine is running.
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you are right , my radiator set up holds about 2.5 litres which would have to empty out through the lid, and I guess some could be left behind when the engine cooled down.
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You would think if the cold level in the overflow bottle dropped away there would be a problem
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I think it might be a smart idea to get the original cap from floods, the oil cap screws on with the right thread , has no tube to direct coolant away so would end up on the battery.
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My problem wasn't that the radiator was low on fluid , the overflow tank had the wrong cap which came under pressure and blew the tube , I have changed the fluid at the service intervals but never had to top it up, my point was that a simple small hole in a the cap was all that was needed, I never picked up that it had the wrong cap. Flew it tonight with no overheating so all good, discovered that with a torch and mirror I can check fluid level through the oil inspection hatch, thanks everyone for your interest.
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Indeed, thanks for pointing out the bleeding obvious
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Lots of screws to get to the cap, easy to see the bottle, never had any trouble with the cooling system before, maybe the oil cap leaked enough air to still breath , have drilled the 3mm hole which could have caused a disaster , my CFI said it's the simple things that will kill you , lucky this time.
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Looks like previous owner lost original cap and replaced it with a Castrol oil bottle lid, I did think it had to be vented otherwise everything would be under pressure , engine done 1400 hrs, lucky to get this far, hope there's no more damage
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Should the overflow tank on my 914 be vented , mine is sealed , wondering if that would put undue pressure on the plastic line from the cap to the plastic tank as mine blew a hole in it,
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Seems hardly worth the trouble
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Can a RPL holder in a 24 rego plane fly above 10000ft, I understand it can allow you into controlled air space with the right endorsement
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Got to pick the day , bad some days, looks like the days might be cooling off Definitely worth the trip, we carry fuel on the farm if that would help.strip is near Kyabram
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If you are keen to go to Mt Beauty we have been there many times , caught a few small trout in the pondage, only 15 min walk into town , you could stop into our strip which is sort of on the way, also dodges a lot of tiger hiding spots , and we could organize a flight,
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Anybody heading to the BBQ at Lethbridge on Saturday, if the weather looks OK I think I will go maybe find out a bit more on the rumoured dreaded annuals
