Hey All. Recently I purchased an x-air Standard with a rotax 618 engine. I just wanted to ask, I’ve heard different stories about their reliability as opposed to the 582 engines that are common on these aircraft. I’ve heard that the 582 is fairly reliable. But I’ve heard differing opinions on the 618 engine. I know mine does not have a cylinder head temperature gauge, but does have a exhaust temperature gauge. The aircraft and engine only have 82 hours on them, however the whole thing is 24 years old. And at this time, I do not have the money or time to have the engine overhauled. So I would like to run on condition if possible. I believe this should be okay. But I just want to know if anybody else owns a similar aircraft and engine combination, if there are any problems I need to watch out for. I don’t use the oil injector, the person I bought the aircraft OFF removed it and told me I should premix the fuel. He also said it was a 50 to one ratio. So 200 mL for every 10 L of fuel. Although he told me to bump it up to 220 mL , for a little bit of extra protection. I did have the engine running once, but didn’t have it running very long. It sounded okay, and ran fine at idle and at reasonable rpm. But didn’t open it up to full power. Some people have told me that they need to be run wide-open. Others have told me that they can run to lean while climbing out and that causes them to burn out. I just would like to know the information about the engine and how to make it last as long as possible. I know of many people who have had 582s running on condition for over 1000 hours with great success. Hopefully the 618 can be just as reliable if you look after it right. Any information would be greatly appreciated. Also, in general, any general things to look out for with the aircraft in general. As this is my first time owning an x-air. I have heard that they are extremely low maintenance. But anything to watch out For or anything that I should do to make the aircraft last as long as possible would be greatly appreciated.

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Hello, we ran the 618 engine for years and years basically without any problems. If you let them warm up properly before you go hurtling down the runway they seem to last forever. Every 200 or 300 hours the power valve would need cleaning because of carbon deposits but this only took about 10 minutes to complete so it was a nonevent. All of the ones that we sold had the oil injection and never gave any problem provided you kept oil in the tank. There is much more chance of a person forgetting to mix oil into the fuel properly than the oil pump to stop working. Just look at all of the millions of outboards with oil injection going for 100 years without any problems.

The only time we found problems with 2 strokes was when people started to play with them, change the jetting, change the air cleaners or do other things to get better performance, better fuel economy and everything else they perceived they could fix/repair. If you kept them totally standard they would work perfectly. If you started to play because you thought you could do things better than Rotax then it started to cause difficulties for the engines.

The biggest advice I give anybody is to make sure the engine is completely heat so before you go flying, my recommendation was to warm the engine up, jump out and go for a pee or whatever else you needed to do and then jump back in and go flying. This gave a chance for the heat to go through the entire engine and warm everything up properly, this is the best advice I can give for a long engine life. Many thanks Michael

Hey All. Recently I purchased an x-air Standard with a rotax 618 engine. I just wanted to ask, I’ve heard different stories about their reliability as opposed to the 582 engines that are common on these aircraft. I’ve heard that the 582 is fairly reliable. But I’ve heard differing opinions on the 618 engine. I know mine does not have a cylinder head temperature gauge, but does have a exhaust temperature gauge. The aircraft and engine only have 82 hours on them, however the whole thing is 24 years old. And at this time, I do not have the money or time to have the engine overhauled. So I would like to run on condition if possible. I believe this should be okay. But I just want to know if anybody else owns a similar aircraft and engine combination, if there are any problems I need to watch out for. I don’t use the oil injector, the person I bought the aircraft OFF removed it and told me I should premix the fuel. He also said it was a 50 to one ratio. So 200 mL for every 10 L of fuel. Although he told me to bump it up to 220 mL , for a little bit of extra protection. I did have the engine running once, but didn’t have it running very long. It sounded okay, and ran fine at idle and at reasonable rpm. But didn’t open it up to full power. Some people have told me that they need to be run wide-open. Others have told me that they can run to lean while climbing out and that causes them to burn out. I just would like to know the information about the engine and how to make it last as long as possible. I know of many people who have had 582s running on condition for over 1000 hours with great success. Hopefully the 618 can be just as reliable if you look after it right. Any information would be greatly appreciated. Also, in general, any general things to look out for with the aircraft in general. As this is my first time owning an x-air. I have heard that they are extremely low maintenance. But anything to watch out For or anything that I should do to make the aircraft last as long as possible would be greatly appreciated.

-- 
With regards,    Michael Coates

AU +61 7 5522 0583


PIPISTREL AIRCRAFT DEALER OF THE YEAR 2012
Winner of the EAA August Raspet Award 2012
PIPISTREL AIRCRAFT DEALER OF THE YEAR 2017

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Hello Michael, the best way is to do with exactly the same as it is supplied originally by Rotax, that way you know everything works

Hi,

I bought a 2nd hand 618 xair quiet a few years ago that had the oil injection removed because the previous owner reckoned he had some problems with it. I have been premixing the fuel and had no problems but I have now just purchased new oil injection parts from Floods and I'm about to put it on.?

I can't see any reason there should be problems with oil injection at all I'm looking forward to getting it installed.?

Like Michael said a gazillion boats and other craft have been using it for years.

My question is there any resources available here with the best way to install? the oil injection system and mounting locations for everything?

I would appreciate any help.

Cheers?

Michael Tyler.

?

-- 
With regards,    Michael Coates

AU +61 7 5522 0583


mailto:mcoates@...


Please note: because of the volume of e-mail we are now receiving our replies are
done using voice recognition software in an effort to speed up the reply process. 
Sometimes the voice recognition program inserts silly words or doesn't actually
do what it is meant to do.  Occasionally these mistakes get through our quick
proofreading of each e-mail sent, so please accept my apologies if the odd mistake
gets through.

Legal Notice: The information contained in this email is confidential
and intended only to be read by the person(s) to whom it is addressed.
No one is authorized to copy, use, disclose, distribute or rely on this
information for any purpose whatsoever. If this communication has been
sent to you in error, please email the sender and delete the message.