Engine/Transmission (1994 - 1998) Douching!

[GOTSOOT]

Can someone give me some opinions on how to clean the INSIDE of the engine. Just bought trk and had the valve covers off and the inside needs a douching very bad. any tips would be greatly appreciated

 

[bavrit]

cleaning inside of engine

I used a product from Lubrication Engineering. It is LE2300. Their website is www.le-inc.com. Seemed to work fine. .

 

[DOWG]

After you clean the engine; use synthetic engine oil. I'm 125,000 miles down the road and it looks like the day I bought the truck. Synthetics cost more, but with reasonable drain intervals there will be no build up.

 

[jimk]

cleaning out the sludge

I have a friend who had a 350 chev engine in a pick up truck and the engine had pennz oil in it and it was sludged up. Tom asked what can I do to it Jim? I said lets drain all of the oil and fill it up with diesel and run the engine at a idle. He filled the engine far enough to whip the rods in the diesel. Tom ran the engine for a few minuets and when he killed the engine, he said that stuff went from the rose bushes to the side of the yard when I pulled the plug. Any way he filled up the engine with clean oil and a filter and later on I installed new valve seals. Tom drove the truck for several more years.

I also have a friend who name is Harvey and some fool told him to drain all of the oil and fill up the crank case with gas and Harvey said that mother never did quit smoking, also what made it bad is I drove to town to get the gass to put in the crank case. I asked Harvey was the engine sludged up? No I just wonted to clean her out, I said yea rings and bearings also.

I laughed and a said I will help you install some rings and that is what we did. I would have thought that the red seal engine would have thrashed but they are very good engines, I had to replace the bearings also,they were into the brass, no wonder Harvey is a good guy so I tryed not laugh to hard. Jim K

 

[Blakers]

goatherder,



Generally diesels don't get the waxy buildup that gas engines get. Perhaps your truck's previous owner did not use oil made for a diesel engine and/or it was run for such short durations that it never got hot enough. Or maybe he/she just never changed the oil.



I would suggest you just change the oil to a good name brand 15W-40 oil and change it and the filter often. Make sure you drain it when the engine is good and hot so any sludge and solids will be in suspension and will drain out. Eventually the engine will clean up.



I would not use fuel oil or any cleaning agents in your engine's crankcase. These could loosen up large deposits at once that could find their way into and plug oil passages, causing catastrophic permanent damage to your engine.



Blake

 

[redramnc]

You don't want ot clog piston cooling nozzles

Like Blakers said, too much large crud can do bad things like clog the piston cooling nozzles and cause a meltdown.



To clean out old gas motors I have always run cheap KMart or Walmart oil with about 1/4 Marvel Mystery Fluid (or 10% trans fluid) for a short duration before changing oil and filter. The next step is to go with just cheap HD30 oil and run it for a month or so before changing oil and filter. Finally go to a quality dinosaur oil and filter for about half a typical change interval and then to the preferred oil, be it dino or synthetic oil.



I will point out that this is for gas motors - they don't tend to have critical oil nozzles like the CTD piston cooling nozzles. I have seen chunks come out of a gas motor when I dumped the oil the first time (junkyard motor). Using the above method I have never spun a bearing or starved and galled the rockers.



For a diesel I would just try shortened change intervals and see how that cleans it out. Good luck.

 

[bighammer]

I've mostly used Rotella and I'm always surprised at how clean the engine looks. (like when adj valves)

 

[JConley]

I remember an autoshop teacher once telling me that if you replace one quart of motor oil with a quart of type F transmission fluid, it would clean the engine out. You only needed to run this combo for about 1000 miles, and dont run it hard. I cant remember why, but there was something about the type F fluid that made it work better than the others.

 

[The patriot]

My wifes car's oil was done by the dealer. I dont know what oil they used, but it was visably dirtier in the valve cover within one oil changes time.

I did a change with Rosmella. Within the oil change, the inside of the valve cover was back to it's aluminum shiny (normal) condition.

Eric

 

[Rotty]

That black gunky stuff is called paraffin wax.



"JConley: I remember an autoshop teacher once telling me that if you replace one quart of motor oil with a quart of type F transmission fluid, it would clean the engine out. You only needed to run this combo for about 1000 miles, and dont run it hard. I cant remember why, but there was something about the type F fluid that made it work better than the others. "



That is what we used to do for badly crudded up gas engines. 4 quart of regular oil and 1 quart of transmission fluid. The type F transmission fluid has a lot of detergents in it and will help removed the crud. I do not know what would happen with a diesel engine.



"Like Blakers said, too much large crud can do bad things like clog the piston cooling nozzles and cause a meltdown. "



I probably would just go with the synthetic and let it do its job but with short interval changes along with the filter.

Good luck!

 

[Turbo Thom]

Well Sir:

If I wanted to clean out the engine and I had not been using Amsoil, I would get a change of Redline oil and run it for a month and let the detergents in it clean and then change to Amsoil 15W-40 synthetic. This tis really what I would do.



. . Preston. .