Perkins A4-236 engine "wet stacking"

I've got an MF 184-4 with an A4-236 Perkins diesel that has started wet stacking at the bottom of the muffler. It doesn't seem to matter what the air temperature, or how long the engine has run. Any thoughts or suggestions?
 
Make sure the thermostat is not stuck open, and engine running too cool. Diesels run much cooler exhaust temp at idle/part load use than gas engines do. If engine starts
and runs well cold, WORK IT, and the wet stacking will stop..
 
Common problem on an older diesel that sits and idles a lot ,or just 'poops' around. Especially if it has a lot of hours and compression is getting weak,or the fuel is a bit rich. As said,work the
snot out of it,get it good and warm.Be aware,the raw unburned fuel that is there will smoke as it burns off.
 
Quit idling it all the time when driving around. This doe not mean you have to go full throttole either though. then when conditions are right put it on a plow for a couple days and work it good not over loaded but work it. Should clean it up till it just puts around again for longer times. Our 574 will do that with dad just idling around all the time with it.
 


Setting the throttle up doesn't increase heat production. There has to be a load in order for the pump to inject more fuel.
 
I agree on hook a good plow to it and work it good and hard. Maybe install a higher temp thermostat. My Ford 3910 has a 188F I put in it and it
runs right at the white/red interface...central scale and loves it. May up the one in the 3000...just need an excuse to go in there and dig it out.

My test for guides leaking is to let it idle for a while, 10 or so minutes then taking about 2-3 seconds max, advance the throttle to full PTO RPM.
If you get a puff of smoke at the onset, the guides have leaked oil into the combustion chamber and when you hit it at the rate I said you burn it
out. Another test would be that you blue smoke on acceleration at a moderate rate...being these engines are usually under square to get their
torque (not black) but your crankcase doesn't need oil added often enough to notice it.
 



Surly your running a modern HD diesel oil in it??? That has the additives to prevent rings from sticking???
 

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