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I don't know how to post it so just send an email to me: anderson@gdsconsulting.com
I added two rear and two front remotes to my Jinma 284 and will gladly send you the schematic as well as low cost source links for DIY hoses, valves, etc. I was able to do this with a lot of help from 3RRL.
My operating hours, nearly 300 HRS, are almost alway on dirt, in the woods, plowing snow, etc. so it's always in 4WD, except for special circumstances with a full bucket backing uphill or anything else I've read online that can lead to front drive failure. I work it hard but at the same time, I'm careful.
I'd go back and make sure all connections are clean with no corrosion. I'd begin with battery ground and follow all of them to be sure.
My Jinma is a “284”, 3 cylinder and the first winter of 2009-2010 went fine. The tractor is stored outside and I glowed the plugs for up to 45 seconds when the temp was around 10F. By using the compression release, it started after 2-3 attempts. I also use a Katz coolant heater when temperature drops below 15F. In Fall of 2010, I noticed the cold start stumbled on maybe one or two cylinders so I made three changes:
- Replaced all three glow plugs
- Installed a 12V starter relay to provide direct battery power to bus bar via the relay. Cost at AutoZone was under $20.00
- I limit my glowing time to around 20 seconds instead of the earlier 30-45 seconds. I think I actually burned out one or more glow plugs by running long glow times over 30 seconds.
In addition, the key has the well known change to allow glowing while cranking. It also allows glowing while the engine is stumbling to “even out” if I need it.
Good luck.
I did the same thing: I installed an adjustable relief valve immediately after the pump discharge and routed the relief into a Tee on the back of my Jinma 284 where one of the rear remotes returned to sump. I just removed the remote quick disconnect and added the Tee. By making my own hoses, the job was simple and inexpensive. Now, no matter what happens, the hydraulic pump will always relieve to sump if I have a dead head problem.
