Hello Guys

I have learnt a bunch today, inluding a new to me at least technical term . . . . "Slobber" - many thanks to CCjersey.

Now I have 4 cats here (3 felines, 1 iron) and two of em "slobber", both the slobberers are yella, and one is iron.

I don't really have any work for my iron cat, and so can't indulge it in a good bit of hard work that seems is one way of getting rid of the slobbering (I could easy fix the 4 legs - lead poisoning, and would happily do so, but the SWMBO would be kinda mad).

So . . . what is the cause of this slobber and do I need to do anything about it. My D2 has 6200 original hours, seems to run very nicely and starts excellently, so I don't think shes too low on compression anywhere.

Now if anyone wants to label this post as "slobber" I won't be offended, I'll just join the other two in the establishment and cry outside.

Cheers - Foster

yes, "slobber" is a canadian term too. if you own a detroit engine, itis a word you use every day, LOL

thansk

That term has been around for many years & when I started for a Cat dealer in 1956 it was a common term then so we all used the word & I still do & have on this site.Slobbering can be usually two problems that cause it and the most common one is if the engine is let idle too much or run without much of a load on the engine then the cylinder liners get glazed & this lets oil get by the rings & slobbers it out the exhaust pipe. Most times (but not all) if the tractor is put to hard work (full load) for a few hours it will help the problem but if the engine is let idle for a period of time or light loads for long periods of time chances are it will appear again.The 2nd. problem causing it could be worn pistons & liners & rings.It seemed in later years with newer technology & engines that it wasn,t much of a problem.

My Dad bought an RD 6 Cat from the IH dealer in 1951. When I unloaded it off the lowboy I got oil drops on me from the exhaust. I think it had been idling for several hours on the trip as it was running when delivered. The dealer had our local shop to install new pistons and liners. If we had worked it hard it probably would have solved the problem. We were not aware that idling would cause a Cat to slobber and I guess the IH dealer wasn't either. We just thought it was worn out.

Bo, years ago at the shop when these old antiques were in, up to about 1960 or before when the slobbering started it was recommended to remove the intake manifold & feed a little Bon-Ami dust into each port to correct the slobbering & I guess it probably scuffed the liners a little to take the glaze off.When Cat came out with the Keystone rings & tapered edge on them they warned not to use the Bon-Ami anymore which we didn,t at the shop.The new style rings did correct a lot of the slobbering problems they had.The remedy still is to not let them idle for any length of time & when it does show up the hard work of the engine under a good full load for a few hours is the answer & as I mentioned before make sure the engine runs at operating temp. & if it doesn,t then install new thermostats.

In the 60's through the 80's growing up in PA, I saw a lot of Cat's that slobbered. Pulling (winching) rods and tubing out of the shallow (less than 1500feet) Oil Well Service tended to not work the tractors hard. Consequently when alot of these became surplus as the oil patches closed down sold fairly cheap as they ran like they were worn out. We had a D2 that slobbered but ran great otherwise.
Those winches are different than a Cargo type winch. The old guys called Cargo winches, "teaming" winches because the winch replaced teams of horses for pulling drilling equipment. Oil field winches were faster and slightly lighter duty as they could hold up to 1500 feet of Baling cable 3/8" up to 1/2" on them for baling mud and sand out of the oil well. Luther Engine and Winch company built some of which had a double clutch (ie. 2 speed) built in. Britain Winch company built one as did Alleghany Winch company which was usually driven off from the belt pulley on the side of a tractor like a Fordson. Our D2 had a winch supplied by Caterpillar which I remember very well, but not what was written on the nameplate. Stuff like this can be seen in museums in the Olean, NY / Bradford, PA area.
Sorry for rambling!
drujinin