Posted 6/9/2014 22:37 (#3910763 - in reply to #3910645) Subject: RE: rebuilding John Deere 3020 gas engine
EC IL
The older 3020-4020s that Ive rebuilt, I always put the 3rd O-ring in as well, BUT was told by Deere to plug the weep holes in the block, as they have seen where moisture will work its way into o-ring, causing it to swell and create a tight spot on the sleeve. Sounds far fetched I know, but they (several diff mechanics) made it sound pretty important.
rebuilding John Deere 3020 gas engine
