Ford 5610 , blue smoke at 2250 hrs

draftx

Member
Bought this tractor 2 months ago. Dealer said it was a local trade, one owner tractor. Well its smoking, not right at first but after 20 min of use. Seems to have plenty of power, motor sounds fine, oil on the dipstick not getting low. Could it be that they used either on it a lot to start it in the winter? Do I just run it and wait for something major or get someone to pull the head and take a look. Its a bummer because I thought with low hours this motor was going to last me a long time. Thanks
 

My Ford 6700 with a crate motor(1000-1200 hrs) smokes blue then black going up hill. It uses no engine oil so I just keep on using it to rake hay.
 
Are you actually working it,or just loafing it around? Is it coming up to temperature (180)?If it is not being worked, and running at 180+ the older diesels tend to smoke some from unburned fuel.
 
Pulling a bushhog today. The temp gauge is at about 3/4 . Seems to smoke more as the load is being decreased, like turning and going down the hill mowing. I have run a 7 ft disc mower and a Vrmeer 504 G round baler. It not black smike its blue.
 
I don't want to sound pessimistic but, a 5610 Ford could be near 30 years old . And that hour gauge could very well have gone over 10000 hrs , and really read 12250 hrs. I had a 5640 that I cranked 8000 hrs on in 20 years. Just saying.
 
If the oil isn't going down on the dipstick then it can't be burning much oil.You didn't say if the smoke is black or blue, black means fuel it could be not fully burning the fuel or
it could be a little moisture in the fuel system.I'd add some Marvel Mystery oil and some Seafoam to the fuel tank and run it.Some older diesels just smoke some I have a couple if they
quit smoking I'd get worried.Also what diesel fuel are you using? I never use the off road stuff,I want auto diesel.Have you changed your air filter? Could be clogging after running awhile
that'll make it smoke big time and be hard on the engine.I'd change the filter no matter how it looked also change the fuel filters.
 
Fords that I have seen smoke like that has had the fuel turned up. The blue smoke is unburned fuel or the valves need to be adjusted No big deal on either one as long as it is not getting to warm but would want to make sure temp gauge was accurate If the valves need to be adjusted it might give you just a tid bit more power. But if it has over 10000 hours (which I doubt ) the injectors are worn out and dumping to much fuel in the cylinders I have chopped corn with 5600and 6600 that has had the fuel turned up on them and at night would shoot a 6 inch flame out the muffler the whole time I was loading the truck an then when I was sitting idling waiting on the next one would burn your eyes from the blue smoke coming out the muffler
 
My 6610 will smoke if I let it idle, has about 2800 hours, work it hard and it cleans right up, never uses any oil
 
The fuel is turned up on my 6610, could probably set it back, does not seem to produce any more HP, just smokes.
 
On turned up, I thought you turned up the pump output without changing the injectors, overloading them making for a sloppy spray pattern, incomplete combustion and hence BLACK smoke....unburned fuel....BLUE....oil, White...... water?????
 
What pump does it have? CAV or Minimec? If it's the former... I would suspect the load advance may not be functioning correctly...

Rod
 
If it's a Minimec pump it will have that name on the side of it.... those are inline pumps with the injection lines coming straight out the top, inline.
The CAV DPA rotary was used from 82-85 (all blue decal tractors) and those pumps advance their internal timing under load.... but if the mechanism does not function correctly I believe you will find it smokes under light load or descending a hill. Poor injectors will also contribute to that.

I would also seriously question the hours on the meter..... it's not impossible that it only has a couple thousand but it would be very rare. 12000 is just as likely. Or more likely it had a broken or disconnected cable for a long period of time. Even with marginal use most of those tractors today would have clocked close to 10k hours.

Rod
 
Thanks for the info . I will look at the pump and get back to you. The Clutch and brake pedals , tell me the hours are about tight.
 
First of all, a little bit of blue smoke is normal for this engine at no-load. If it starts well and doesn't burn oil, don't bother pulling the head off, you wont find anything wrong. What you need to limit blue smoke is good clean injectors, if they are original and are 30 years old, they could use a cleaning. Also, the timing control needs internal fuel pressure to operate, make sure your fuel filters are clean/new to get the pressure that is required. Also while you're at it, check the whole primary fuel system. There is a screen in the tank at the fuel shut off valve. Pull it out and clean/replace it. Check for other blockages in the lines and fittings up to and including the fuel filters. I once found a misplaced cloth rag in a fuel tank on a 4610, and it would intermittantly restrict the fuel at the tank and cause the symptom you describe.
 
Ok you experienced guys, where does the blue smoke come from? To me the crankcase is the source so how does it get in the fuel/combustion chamber? I can see valve guides leaking especially after the engine has been running long enough for it to drip down around the valve stems and the intake stroke sucks it into the combustion chamber.
Sthe Simms pump may be able to suck it out of it's sump but what happens when the sump dries up? Know not about the other brand mentioned....only had Simms or CAV dist. pumps in my Fords.

Then you have bad rings but to me that would be initial, not wait for 20 minutes to develop.

Don't understand how injection timing would be a culprit. Where's the mechanism?

Thanks,
Mark

Maybe other readers are curious also.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top