Larry Flesner wrote: ------------------------------------------------------------------------------ -----Original Message----- From: KRnet [mailto:krnet-boun...@list.krnet.org] On Behalf Of Flesner via KRnet Sent: Monday, June 3, ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Why do we "break in the rings" on an aircraft engine and not on our automobiles, trucks, tractors, lawn mowers, outboard motors, etc.? Just wondering.............. When you buy a new car your just go out and drive it home. On my new mower last week I just started it and mowed the lawn. What am I missing? Larry Flesner [Mark Wegmet] >>>>>>>>>>>>>>>>>>>>> Maybe it is different in 2019 (or somewhat earlier), but when I bought my new 2013 Hyundai Genesis Coupe with the two liter turbocharged motor, there were specific break-in instructions provided - keep it between 2000 and 4000 rpm for the first 500 miles: don't exceed 50 miles an hour and vary the speed and loading (change gears often and vary the rpm) for the first 50 miles, etc. After the first fifty and up to 500 don't exceed 60 mph (~2000 rpm in top gear). So my question would be, is it true that car and trucks don't need any special break in? Today's motors would be race motors 'back in the day' (think '60s and '70s) and they are nearly bullet proof. I put 276K on my '96 Firebird with an LT1 before blowing a head gasket due to overheating. It came with a much lesser drive train warranty than the Hyundai (2 years vs the 10 year Hyundai drive train). All motors (and drive trains) need proper rebuild and break in discipline. Doesn't make any difference if it is at 0 AGL or 10K AGL, the motor doesn't know where it is. As many on this forum like to say... your mileage may vary and JMHO. Mark W. N952MW (res) --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
