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AK-14 carburettor

 
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richard.goode(at)russiana
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PostPosted: Tue Oct 12, 2010 8:04 am    Post subject: AK-14 carburettor Reply with quote
Mark – I agree with everything that you say.

I was not being pedantic about “suction jet” and “main jet” – it did seem to me that some people could be confused.

My principal point is that the M14P can be made to run so much better if the carburettor is correctly tuned.

Having said that, it is very difficult, with the different adjustments being interdependent.

An obvious one is for the acceleration jet – if you are at idle and open the throttle, and then get a hesitation, it is EITHER to rich or to lean – and the black smoke if it is to rich will demonstrate that.

I wish I were qualified to produce a step by step manual, but, quite frankly, I am not! BUT the official manual is pretty good, and does give a reasonably accurate picture and instructions of adjusting the carburettor. As Mark says, it is critical to know where you started from so that you can always go back to that position!

Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Herefordshire
HR5 3LW
United Kingdom

Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com

[quote][b]

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mark.bitterlich(at)navy.m
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PostPosted: Tue Oct 12, 2010 10:16 am    Post subject: AK-14 carburettor Reply with quote
Roger that Richard, thanks.

I read Tom Johnson's note with interest as well. His engine is highly modified..... you ought to see the exhaust on that thing, not to mention the prop and a whole ton of other "stuff". He modifications really demanded that the carb be retuned. A valuable aid to him in this was an accurate fuel flow indicator. That sure would help a novice go about learning this thing. Thinking about it for my 50. It would also be interesting if a person could make a PORTABLE unit that could be attached to the aircraft being tuned. Just thinking out loud.

Thanks (as usual) for sharing your experience and knowledge.

Mark


________________________________

From: owner-yak-list-server(at)matronics.com on behalf of Richard Goode
Sent: Tue 10/12/2010 12:01 PM
To: yak-list(at)matronics.com
Subject: AK-14 carburettor

Mark - I agree with everything that you say.



I was not being pedantic about "suction jet" and "main jet" - it did seem to me that some people could be confused.



My principal point is that the M14P can be made to run so much better if the carburettor is correctly tuned.



Having said that, it is very difficult, with the different adjustments being interdependent.



An obvious one is for the acceleration jet - if you are at idle and open the throttle, and then get a hesitation, it is EITHER to rich or to lean - and the black smoke if it is to rich will demonstrate that.



I wish I were qualified to produce a step by step manual, but, quite frankly, I am not! BUT the official manual is pretty good, and does give a reasonably accurate picture and instructions of adjusting the carburettor. As Mark says, it is critical to know where you started from so that you can always go back to that position!



Richard Goode Aerobatics

Rhodds Farm

Lyonshall

Herefordshire

HR5 3LW

United Kingdom



Tel: +44 (0) 1544 340120

Fax: +44 (0) 1544 340129

www.russianaeros.com <http://www.russianaeros.com/>

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viperdoc(at)mindspring.co
Guest
PostPosted: Tue Oct 12, 2010 11:00 am    Post subject: AK-14 carburettor Reply with quote
Can easily be done just need the fuel sender in line with the fuel line that
you will need to manufacture with appropriate RU banjo fittings. Then it is
the 12 volt electrical source and the JP analyzer or other appropriate fuel
flow analyzer.
What the heck, it is only money.
Doc

It would also be interesting if a person could make a PORTABLE unit that
could be attached to the aircraft being tuned. Just thinking out loud.

Thanks (as usual) for sharing your experience and knowledge.

Mark

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