Well after 800 hours of TW time I finally bolloxed it up
Is the plug fouled with lead deposit or oil?
Has the oil consumption returned to normal?
I'd be suspicious about the spark on that plug, timing has been mentioned but I'd have to ask why there's no issue with the other cylinder (no. 3?) on that side. Is it possible the plug lead is faulty giving a weak spark?
Keep at them, it's their job to fix it. I'm not sure how the insurance company will see their role in this. That may depend on the broker and or theloss adjustor involved.
At some point a fresh set of eyes may be the best option. Some mechanics become fixated on what they think the problem is and ignore other possibilities.
Has the oil consumption returned to normal?
I'd be suspicious about the spark on that plug, timing has been mentioned but I'd have to ask why there's no issue with the other cylinder (no. 3?) on that side. Is it possible the plug lead is faulty giving a weak spark?
Keep at them, it's their job to fix it. I'm not sure how the insurance company will see their role in this. That may depend on the broker and or theloss adjustor involved.
At some point a fresh set of eyes may be the best option. Some mechanics become fixated on what they think the problem is and ignore other possibilities.
pb84,
Some thoughts from my club's Chief Towpilot:
Some thoughts from my club's Chief Towpilot:
Boy it sure does sound like his oil ring is not doing the job based on his fouled lower plug and oil use.
The confusion is the hotter EGT on number 1 in flight. The EGT wouldn't be related the cylinder position but rather a leaner mixture on that cyl. There may be no relation with the two symptoms.
Question then. Why did they hone the cylinder in the first place? Did they hone all four and replace the rings on all four? So it was an top overhaul not a tear down inspection?
Are the cylinder serial numbers the same as they took off? Did #1 get a new different cylinder. May a cerminil or Chrome cylinder by mistake? If it was run in low, full throttle, and so forth then 25 hrs shd have the rings seated. I had a glazed cyl with the same symptoms but a good honing fixed it.
Sorry can't be of more help.
The confusion is the hotter EGT on number 1 in flight. The EGT wouldn't be related the cylinder position but rather a leaner mixture on that cyl. There may be no relation with the two symptoms.
Question then. Why did they hone the cylinder in the first place? Did they hone all four and replace the rings on all four? So it was an top overhaul not a tear down inspection?
Are the cylinder serial numbers the same as they took off? Did #1 get a new different cylinder. May a cerminil or Chrome cylinder by mistake? If it was run in low, full throttle, and so forth then 25 hrs shd have the rings seated. I had a glazed cyl with the same symptoms but a good honing fixed it.
Sorry can't be of more help.
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Now I'm totally confused, the symptoms have changed since yesterday, the oil consumption from yesterdays flight has not moved much on the dipstick so perhaps the honing of cylinder number 1 has fixed that problem, but now the rough running has switched from the right mag (bottom plug) to the left mag (top plug) but still on cylinder number one and the engine is running rougher than ever to the point I can no longer clear the roughness on #1 to be able to fly( remember it runs fine at high RPM) Is it possible it is sucking in excess fuel from a fault in the primer line that is only noticeable as a flood at low RPM? Another new thing I noticed is prior to today the engine sounded ok during run up till I switched to the right mag, however now it runs like **** on both mags and the RPM gauge jumps around.
Here is a vid of my run up, the taxi part lasts from about 1 minute in thru to about 3:00 which you may want to skip to get to the run up part.
https://www.youtube.com/watch?v=-fKr1kQuvk4
Here is a vid of my run up, the taxi part lasts from about 1 minute in thru to about 3:00 which you may want to skip to get to the run up part.
https://www.youtube.com/watch?v=-fKr1kQuvk4
Check the plug for broken porcelain and or swap for a known good one.
Also don't get confused about which mag is providing the spark when you select left and right especially if you fly aircraft with separate mag switches for each mag as well.
Also don't get confused about which mag is providing the spark when you select left and right especially if you fly aircraft with separate mag switches for each mag as well.
Have you checked the intake manifold for Number 1 for leaks or blockages?
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Piperboy, did you ever get your engine problem sorted?
I'm actually having second thoughts about having it shipped over now with all the hassle and instead just leave it in LA as there's a cracking old C180 for sale this side of the pond that I'm sorely tempted to go look at. I sure do miss my Scottish based Maule, kick myself everyday for crashing it.
Want to get up to more of this https://www.icloud.com/sharedalbum/#B0IJtdOXmGoEIum
Last edited by piperboy84; 22nd Dec 2016 at 18:33.
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Well the Maule is now out in the Atlantic Ocean, fortunately not as a result of another episode of my dubious airmanship but instead under the watchful eye of the captain of the Houston Express freighter. If it can handle me flying it from LA to Florida and one full week of every flight cadet and bored lawyer/wannabe bush pilot climbing into it to try it on for size at the Maule stand at Sun n' Fun I'm sure it'll handle the crossing and unloading at Grangemouth just fine.
Full steam ahead skipper! Im like a kid waiting for xmas
http://www.marinetraffic.com/en/ais/...OUSTON_EXPRESS
IMG_0204.jpg
Full steam ahead skipper! Im like a kid waiting for xmas
http://www.marinetraffic.com/en/ais/...OUSTON_EXPRESS
IMG_0204.jpg
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Just couldn't pluck up the courage Sam. I got her over to the east coast, spent some time at the air show then decided to container it. I jumped on an Iceland Air flight back that routed Orlando, Boston, Reykjavik Glasgow, on descent into Reykjavik it was pea soup from 12k to the deck and freezing, I thought to myself thank god I ain't messing around in that.
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http://gcaptain.com/containership-crew-rescues-sailor-lost-at-sea-more-than-60-days/
