a Newbie to this site and Flying

[JabSP6]

HelloI am currently in the process of rebuilding my Jabiru SP6 motor after experiencing No2 exhaust value deciding it would rather travel thru the top of the piston several times instead of closing on the exhaust seat. It separated from the exhaust value stem at the base of the head and at 2800 RPM as you can imagine caused a fair bit of damage. luckily i was 10mile out of the airfield and at 4000feet AGL so manged to perform a glide approach and land safely. luckily the motor continued to spin over although obviously running extremely rough so i reduced to just above idle and it somehow continued to run untill i shut it off after clearing the runway.Total time on the Motor and plane is 750hrs and it was fully overhauled by a LAME at 320hrs after finding metal in the oil filter. At 550hrs the leakdowns were quite bad and oil usage was extremely bed so a top end was again performed which revieled bad piston carbon deposits and rings siezed in the grooves.I would welcome the chance to talk to you all about anything you might have done to try to improve the reliability of these motors as i use the plane for transport to work and have flown 240 hours in the past 9 months.Looking forward to utilising your knowledge and experience.Andrew

 

 

[Guest davidh10]

to the site, Andrew.

 

I cannot assist with your problem, but I'm sure you will find some help from others.

 

As your Thread does not mention the question / problem, it won't necessarily be seen by all the Jab owners. Could I suggest that you create a thread in the Jabiru forum, where it is more likely to be exposed to a larger specific audience.

 

Enjoy. I hope you get some useful info.

 

 

[dazza 38]

Welcome Andrew.