Search found 5 matches

by traber1
Thu Aug 17, 2017 7:23 am
Forum: Early model JD crawler technical support
Topic: 420 crawler engine surging
Replies: 21
Views: 17951

Re: 420 crawler engine surging

Compression test cold was about 55psi for both cylinders. Not sure how accurate the gauge is, but at least they were the same when cold. Did not check hot. Since I adjusted valves already, cannot tell. Ran for another 20minutes in driveway, shutdown and let set for 30minutes. A quick pull on choke a...
by traber1
Tue Aug 15, 2017 4:58 pm
Forum: Early model JD crawler technical support
Topic: 40C motor pulsing
Replies: 7
Views: 6044

Re: 40C motor pulsing

Oil in the govenor? Isn't this lubed by engine oil?
by traber1
Tue Aug 15, 2017 4:55 pm
Forum: Early model JD crawler technical support
Topic: 420 crawler engine surging
Replies: 21
Views: 17951

Re: 420 crawler engine surging

Can any of you provide an audio snip of what a good, smooth running 420 sounds like? I've been fighting multiple issues and am now concerned I burned the exhaust valve on #1. Unit ran fine for an hour yesterday, moving brush and pulling trees. Shutdown to cut more trees and after setting for about 3...
by traber1
Tue Aug 09, 2016 6:01 pm
Forum: Early model JD crawler technical support
Topic: pressurized gas tank on 420C
Replies: 17
Views: 12629

Thank you gentlemen. I don't recall seeing a vent line, but with the chance of becoming a human torch, you can bet I will install a good venting cap.
by traber1
Tue Aug 09, 2016 12:07 pm
Forum: Early model JD crawler technical support
Topic: pressurized gas tank on 420C
Replies: 17
Views: 12629

pressurized gas tank on 420C

Had a scary and very unexpected event over weekend. Had been dozing a brushline and decided to check gasoline level before moving deeper into woods. Loosened gas cap and it blew up and away from my hand. I then had a fountain of gas streaming from the tank port, spraying on me and a hot engine. Does...