Jabiru circlip issue
Hi.
Wondering if anybody could give me some advise on my Jabiru430.
I had the 1000 hour engine overall done about 75 hours ago and we found pieces of circlip in the drained oil. Upon opening the engine we found that a circlip had failed on the gudgeon pin.
We decided to take all the pistons off and in the process of removing the circlips, another one broke.
Now I know that the Jabiru has had circlip issues in the past but these circlips were from the new batch. Basically what we found was that the ears had broken off luckily the bulk of the circlip had stayed in position so I didn't have massive engine failure. Thank goodness!
The jabiru agent here has mentioned that the only thing that could have caused this is incorrect installation yet I can be nearly sure that they were installed correctly. Apparently this can happen if the circlips are installed with the gap aiming sideways rather than with the stroke of the piston. This I can believe even though I would have thought a circlip would be strong enough to handle this type of incorrect installation.
I have got new parts to install but am obviously worried about a future engine failure because I have not worked out the cause of the problem.
Has anybody else by any chance experienced a similar problem with the 3300 engine (solid lifter)?
If anybody has any knowledge on these issues I would very much appreciate been able to talk to them.
What I also noticed is that the replacement pistons are not identical to the original ones that were installed a few short months ago.
I do have more information than I am including in this thread if anybody would like me to share it. Including pictures and microscope photos of the circlips which came out the engine. Seeing these photos has done the opposite to putting my mind at rest.
Thanks.