Jinma 204 - Problems getting it started

   / Jinma 204 - Problems getting it started #1  

white_ja

Member
Joined
Jul 19, 2004
Messages
34
Location
Lancaster, KY
Tractor
Jinma 204
Hi Folks. I'm a newbie to this forum and I need some help. I just purchased a Jinma 204 in the crate. This tractor was new but had been in the crate for a few years. Anyway, after much trial and error, I finally got it assembled. After priming the injection pump and bleeding the lines, I cranked the tractor over. It started and bellowed black smoke for about 30 seconds. The engine rpm started to increase and then it slowly died.

Now, I can't get it to start back. I have opened the bleeding screws and pumped the priming mechanism. There is no air bubbles. I also opened the banjo fitting on the injectors and pumped the primer. Again, no bubbles. I loosened the fuel filter to make sure the filter was full. I also loosened the banjo fitting on the tube leading to the fuel filter. The sediment bowl is full and has no dirt in the bottom. I filled the tank almost to the top (about 3/4 full) to assist with gravity feed. The only things I haven't removed or inspected are the injectors. But, when I loosened the banjo fittings on the injectors, I let the fuel run for about 20 to 30 seconds to make sure there was no air. Surely, the injectors are primed. Am I missing something? Did I mention that I am new to diesels? I am pretty competent at gasoline engines. I've built many engines over the years but never worked on a diesel. Any help would be appreciated.

Thanks,
John
 
   / Jinma 204 - Problems getting it started #2  
"in the crate for a few years"

I believe this may be the key phrase. Diesel fuel always has some moisture in it. The fuel that was put "in a few years ago" has probably produced rust in the injection pump and/or injectors. You are probably going to require a bonified diesel mechanic/technician to solve your problem.

OrangeGuy
 
   / Jinma 204 - Problems getting it started
  • Thread Starter
#3  
Orangeguy, how easy are the injectors to take apart and clean?
 
   / Jinma 204 - Problems getting it started #4  
Diesel injection pumps and injectors require trained mechanics/technicians. If you do not have experience repairing either of these, get professional help.

There is another thread going on starting problems with another Jinma tractor. They are centering in on plugged filters and/or screens. You might want to check it out. You might get lucky and find something plugged.

Did you purchase this new tractor with any kind of guarantee? Did the seller imply that it would run? or did you buy "as is, where is"? Can't your selling dealer provide some help? If you did not purchase from a dealer, is there a local Jinma dealer you can seek help from?

OrangeGuy
 
   / Jinma 204 - Problems getting it started #5  
When you crank, do you get smoke out the exhaust? black or white? No smoke would tend to indicate no fuel, white, unburnt fuel, black fuel but other problems if not running.

Compression sound good when cranking (there is a compression release handle under the dash, it is a chrome lever,be sure it is not in the release position).

Are the glow plugs working?
 
   / Jinma 204 - Problems getting it started #6  
blue chip added good thoughts.

if no fuel is comming out when pumping the primer and the lines are cracked I would suspect clogged screen.

also note that fuel SHUT OFF may not seem to be set right, on my tank it is actually ON when the valve appears to be off. Not sure if this is a common thing or not. mine sets across the line (like a normal shut off valve is off when it is on)

next items did you drain the tank of any residual fuel first? the stuff that comes in them is more akin to muddy water than actual fuel. lots of sediment and such as well as some cosmoline type stuff mixed in to keep tank rusing down untill it is coated well with fuel.

try removing the fuel filter and filling it up then re-install it mine seemed to pump the primer forever with very little or no fuel ever getting out, and it ran just like you'res fired ran for 30~45 sec and died, (shut off valve was off) it ran while fuel filter was full but once it was dry it would die.

also make sure to check all the oil levels, injector pump too. if it sat a while it may have dripped out the lube in it?

there are screens in just about every banjo fitting on the fule supply also under the tank between fuel bowl and tank, (how I found out my hole for the valve was drilled wrong, while troubleshooting for the clogged screen I happened to LOOK inside the fuel bowl shut off and SAW that the hole was only barely ligned up when it should have been wide open. might have been some china guy mad that he had to work 16 hrs that day? lol
also go to JOHN S's web site lots of info and help there. as well as NYCTOA site.

anyhow try these and we will check back.

Mark M
 
   / Jinma 204 - Problems getting it started
  • Thread Starter
#7  
Bluechip, I see white-grey smoke when I crank it over. The first time I started it and it ran for about 30 seconds, the smoke was black. Now it is very faint. It acts like it wants to start but just can't. If I use a shot of starting fluid, it will start and run for about 5 seconds, but I'm afraid of using it too much. I've heard that using WD-40 is better for a boost in starting. Is this true?

I have what seems like good compression. If I turn the compression release handle, the engine turns much more freely. So, I don't think that is it.

Glow plugs are not currently connected at the switch. When I got the tractor, it was missing the keys. So, I installed a universal ignition switch. I plan to either purchase a set of keys for the original switch or mount a momentary switch for glow plug use in cold weather.
 
   / Jinma 204 - Problems getting it started #8  
</font><font color="blue" class="small">( Glow plugs are not currently connected at the switch. When I got the tractor, it was missing the keys. So, I installed a universal ignition switch. I plan to either purchase a set of keys for the original switch or mount a momentary switch for glow plug use in cold weather. )</font>
My Ford ignition switch modification is at http://www.johnstractor.homestead.com/files/Ford_switch2.doc. I recommend you get that glow plug circuit working first, before you waste time on what may prove to be unnecessary troubleshooting.

//greg//
 
   / Jinma 204 - Problems getting it started #10  
As you said.the problem is on the fuel injection pump.Please
seek a engineer that know "injection pump" and clean the pump for you.Or change a new one.
 

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