Just finished the installation of a new Universal M25XPB in Squall. The PRM transmission is longer than the Hurth so we needed to install a shorter packing box and trim off part of the shaft to get the engine to fit. In order to get proper alignment, 3/8" pads had to be mounted under the engine mounts. To maintain a safe clearance, part of the top step had to be altered.
The Universal manual calls for a 50 hour initial conditioning period requirement. It calls for running the engine at varying rpms during the first 25 hours of operation. For the second 25 hours the engine may be run at varying rpms with short runs at full rpm.
My question is what is running at varying rpms actually mean. So far, I have ran the engine for six hour, ranging my rpms from 1200 to 2400 for periods no longer than 10 minutes per setting. Is this the right amount of time for each setting, or is it too long, or can I go longer?
I am trying to get the initial 25 hours in by going out for 2 to 3 hours each day so I can have it completed by June 9th before a weekend of point to point races.
Thanks for any help I can get.
The Universal manual calls for a 50 hour initial conditioning period requirement. It calls for running the engine at varying rpms during the first 25 hours of operation. For the second 25 hours the engine may be run at varying rpms with short runs at full rpm.
My question is what is running at varying rpms actually mean. So far, I have ran the engine for six hour, ranging my rpms from 1200 to 2400 for periods no longer than 10 minutes per setting. Is this the right amount of time for each setting, or is it too long, or can I go longer?
I am trying to get the initial 25 hours in by going out for 2 to 3 hours each day so I can have it completed by June 9th before a weekend of point to point races.
Thanks for any help I can get.