Hi Juano
Thank-you for your patience with this matter.
I have spoken with one of our chief engineers and we are unable to suggest any further recommendations.
Instead I think the best course of action would be for us to send you a new tested 58CD. You could then check this under the same conditions, and assuming it works, post the other 58CD back to us.
If you could email me confirmation of your delivery address (
[email protected]) I will arrange for the new engine to be despatched.
Best regards
Laurenne