Date of Manufacture date for 912UL sn 4407181

Re: Date of Manufacture date for 912UL sn 4407181

by Rob Seaton » 11 years ago

Rob Seaton

3 1.32k 251

April 2010.
Yes it is a 2000hr TBO.

Re: Date of Manufacture date for 912UL sn 4407181

by Roger Lee » 11 years ago

Roger Lee

131 5.38k 5.44k

Hi Rob,

Would you please look up 4428926 and is it a UL or ULS?

Thanks

---

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

Re: Date of Manufacture date for 912UL sn 4407181

by Rob Seaton » 11 years ago

Rob Seaton

3 1.32k 251

Hi Roger,
4428926 is a ULS that was made Jan 2003

Re: Date of Manufacture date for 912UL sn 4407181

by wayne beyer » 11 years ago

wayne beyer

3 31 39

Rob
Can you tell when Rotax went to the retarded ignition timing on start up?

Re: Date of Manufacture date for 912UL sn 4407181

by Rob Seaton » 11 years ago

Rob Seaton

3 1.32k 251

Well thats hard to pin down: Every aluminum box ignition (pre 1990) that we have tested does not have retard but according to the overhaul manual all modules should have this feature.
Any ignition mounted on top of the engine will have a retard function. This type of ignition was introduced Aug 1992.
Strangely enough, engines with the old aluminum box ignition did not seem to have any starting issues. They sure had corrosion and wiring confusion issues!