ReT_SqUiD

I'm taking my engine apart due to years of lack of maintenance which has led to this. No was not my fault, truck was given to me in this condition. What can I soak everything in to remove all the burnt oil buildup ?

Brandon587

Gas? I always use that to clean bearings to repack and some other things, never used it on an engine. Don't see why it would hurt. As long as your replacing all seals, anything the gas would eat up.

Tuner Boost

You really need to disassemble the entire engine (this is the result of running non-synthetic oil and going over oil change intervals) and send it all to the machine shop to be cooked/sonic cleaned. Or, if nothing is wrong, dont disturb ANY of it! As soon as you try and clean and remove those sludge deposits you will have particles falling into every oil passage and you will have some clog and take out bearings, etc. Over 40 years building engines here, and have seen this far to often. Either every single component must be cleaned or dont disturb any of it. This was really neglected.

ReT_SqUiD

Thanks guys for the fast response! [MENTION=102458]tuner[/MENTION]Boost I'm currently tearing it completely down so hopefully I won't run into any trouble as you mentioned.

Tuner Boost

Excellent! Dont see this alot now days, but sure used to in the 60's and 70's witht eh old oil formulations.

tdkkart

Even modern oils will do this, especially if the vehicles are driven on short trips daily. Put an oil temp gauge on any engine and you will see that it often takes a LONG time for the oil to reach a stable temp above 180 or 200*, and may never get that high in cold weather. Your vehicle needs extended driving, more than 20mi, get fully up to temperature and cook the moisture out of the oil.
You CANNOT run 5 or 10,000mi oil changes if your daily commute is 5 or even 10 miles one way, or your engine will look exactly like this.

Foolish_Mortal

That poor old truck

As others have already said, to do it right, tear it down, have it dipped by the machine shop and go from there, I wouldn't even consider putting it back together in that shape if it were mine.

Tuner Boost

With a conventional oil you are correct, but with full synthetic we tear them down with 100-150-200k miles and still are sludge free. Cheap syn blends they use from the dealer though I would say may.

sdmartin65

I own a lube/oil emission shop so we don't see the inside of a motor like this. Occasionally we service a vehicle and have to use a screwdriver to free up the drain hole because it's full of sludge and debris. It's not very often as with the motor pictured oil changes were not on the radar of things to do!

Folks that Skip maintenance come from all walks. I have a customer that's a doctor and he drives a Porsche sport-utility vehicle. He dropped it off to get an oil change and do the emissions. Just looking under the oil cap I knew we didn't want to service it. I just made up a story that you needed some Porsche specific tools to do the work. Went ahead and topped off the oil for him, couple quarts low. This is five years ago and I still don't think he's changed it, he said they were rip off at the Porsche dealer. Nice guy but kind of funny he would correct you on your pronunciation of Por che'.