Author	[Modern View]
Mike M 02-19-2013 13:21:51 24.140.0.120 Report to Moderator	From what I remember those V4 ponies all had the same rods. The mains were changed at some time and the size changed. 2 different cranks also because of the main brg. size change. [Reply]   [No Email]
Blksmok 02-19-2013 18:19:44 67.209.80.17 Report to Moderator	Re: John Deere 70D Pony Motor bearings in reply to Mike M, 02-19-2013 13:21:51   When the black dash 720 diesels were introduced the pony engines were also changed and had s/n plates on them. The difference between early pony engines and later ones are : bigger pushrods/lifters/rockerarms, thermostats and water pump bypass tubes , larger main bearings and thrust washers and different linkages in the transmission plus a few other minor changes.   [Reply]  [No Email]
jmg 02-19-2013 19:46:38 76.125.41.13 Report to Moderator	Re: John Deere 70D Pony Motor bearings in reply to Blksmok, 02-19-2013 18:19:44   That would explain the 4 pushrods that resemble bananas. I think I'll keep the throttle speed down around 4000 rpm. Think it will produce enough juice? I live in CA where below 20 degrees is very rare....   [Reply]  [No Email]
Mike M 02-20-2013 06:17:19 24.140.0.120 Report to Moderator	Re: John Deere 70D Pony Motor bearings in reply to jmg, 02-19-2013 19:46:38   Neighbor had one that had some of those "bananna" pushrods along with broken rocker arm shaft. Had to of killed off a couple of cylinders. Funny thing was it would still start the diesel engine up !!! Just stuck some used good parts back in it and kept going.   [Reply]  [No Email]