Diesel fitters / Farmer dudes

D

Dinkum

Joined
Mar 24, 2007
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Guys, I have a question regarding an old tractor I am trying to get going.

As far as I know, it ran well before it was parked up for about 6 years.

We dont have the money to buy the huge (2) batteries that she needs to turn her over so we pulled her behind another tractor in high gear just to get things turning, there was a little bit of an encouraging grunt a couple of times though.

My main question is (Its a Zetor 8011) is regarding the little pull stop button thing on the dash. She doesn't have a Off > Glow > Start key method, rather a push button start and a seperate pull button stop. If there is no battery connected at all, do you think that, considering the amount of travel would suggest that the stop mechanism is not manual, like a cable going to the fuel pump or something, but rather electrical with a solenoid. Do you think it would never start if there is no battery attached? (Its a 2 x 12v in parallel to give 12V the CCA rating per battery is 600 CCA)

If so, would a single well charged 400+ CCA battery be enough to power the solenoid, if in fact that is the problem?

:confused::confused:
 
do you know if the fuel pump is mechanical or electric? If the shutoff is electric, then the default position (no power) should be off, but who knows what the Czechs would do? a 400 amp battery would do the trick, the huge battery capacity is mostly for the starter, takes a lot of grunt to turn a big deisel.
if it just coughed a few times, I'd think that it just wasn't generating enough fuel pressure, but then, I've never tried to pullstart a diesel. I've seen several older tractors that only had electric starter and glow plugs, everything else was mechanical. I'd chuck some power on it, and see what happened, but I don't think I'd try to use the starter with just 400CCA, might be too much draw for the battery.
I hope I'm making sense here.
 
Dinkum
A lot of the time on those old tractors that pull stop button is a decompression lever. Taking away the compression on the engine causing it to stop, not a fuel shutoff. If that is the case then the fuel pump is mechanical and it might be possible to pull start a tractor?
Good luck

trldad
 
More than likely, you will end up having to flush all of the old fuel, even from the two fuel filters, injector pump, lines and injectors. Diesel does not go bad like old gas does, but will develop a fungi which will stop up almost every screen and filter in a system. Nasty stuff, but will have to be removed prior to getting to run.
 
thanks guys, yes the stop thing is more like a choke but it onl travels about 1/4 inch, which is what makes me think electrical. Its from around 78 I think and looking at it I would think mechanical pump. I will flush the fuel lines and filters and attach the 400 cca just to give some juice and give her a pull start again. Cant afford the batteries at the moment.

Thanks again for the replies.
 
I've never seen a tractor with an electric fuel shutoff that didn't work off the key,usually if there is a seperate pull stop,it's mechanical.You can tell for sure if you follow the cable to the end and see what's attached to the pump,if it's wires that go into a box,it's electric,if it's a cable that goes into a linkage that rotates,it's mechanical.If you didn't dump the old fuel and put in fresh fuel,your probably not going to get a diesel running.That's where I'd start,drain the fuel,including the filters and refill it with new fuel.If you do find that your fuel shutoff is electric,any 12v battery will have enough juice to turn it on,then you could pull it to start it.On a diesel you should start getting smoke pretty quick once the engine starts turning over,if your not getting smoke,your not getting fuel and it won't start until you start to see some smoke.
 
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