Coolant in oil?

[Cdub982]

82 CJ5 has sat for 10 years, I just drained the oil and when I poured it out and towards the end I noticed that the oil was all glittery, I know there was alumiseal in the coolant, and there was a few beads of water in it as well. My first thought was bad head gasket, now I'm not sure cause the little hose on the rear of the valve cover has been off for who knows how long, and that oil pan I used to collect the oil had sat in my garage through many random spray paintings. So the glitter could be from the paint dust and the water drops could be from that hose not being connected... Right? Or should I just change the head gasket to be sure?

 

[Torxhead]

I would suggest after changing oil that you continue inspecting it for a while. Water drops are probably from condensation.

 

[tarry99]

82 CJ5 has sat for 10 years, I just drained the oil and when I poured it out and towards the end I noticed that the oil was all glittery, I know there was alumiseal in the coolant, and there was a few beads of water in it as well. My first thought was bad head gasket, now I'm not sure cause the little hose on the rear of the valve cover has been off for who knows how long, and that oil pan I used to collect the oil had sat in my garage through many random spray paintings. So the glitter could be from the paint dust and the water drops could be from that hose not being connected... Right? Or should I just change the head gasket to be sure?

If you have water in the oil I would pull the head........motors sitting for that long will leak water into the cylinders and rust the joint up! A little rust on the tips of the plugs will also give you an indication of whats inside........pre-oiling everything prior to starting up is important...........oil seals after 10 years will be hard and chances are they will leak.

 

[Lumpy Grits]

You need to do a coolant system pressure test.
You may well have a headgasket or head issue starting up.
Do this ASAP so you don't lose the engine.
LG

 

[gutthans]

With new oil, you can crank it over...but the radiator pressure check would be good first.

The big problem would be water on top of the pistons from a leak...not really likely after 10 years, but a slow dribble from a head gasket leak or block crack could put enough unevaporated H2o in a cylinder to cause hydro-lock (and a bent rod) as soon as you crank it.

You can pull the plugs as mentioned to look for rust but bring the cylinder up to TDC and inspect for water. Alternatively, with fresh oil you can take all plugs out and bump it over to see if water sprays out of any plug port. You'll need to take the plugs out anyway to spray oil onto the piston top/rings before firing it over.

BTW the motor WILL run with a head gasket water leak...so firing it up will not break it.

 

[tarry99]

If you have water in the oil I would pull the head........motors sitting for that long will leak water into the cylinders and rust the joint up! A little rust on the tips of the plugs will also give you an indication of whats inside........pre-oiling everything prior to starting up is important...........oil seals after 10 years will be hard and chances are they will leak.

Don's spin it over even with fresh oil in it.

First , see if you can turn it over by hand with no plugs with a breaker bar.....Just slightly move it 10-15 degrees on the front hub with just a little pressure if it seems to move fairly easy.........then take some top oil lube like Marvels Mystery oil and get some in each cylinder and let it set overnight ....
A bore scope works wonders........see if you can borrow one.

If there is rust in the cylinder walls and you crank it over you may very well will damage it even further............personally I would not hesitate to pull the heads......10 years sitting?

Been there done that many times!

 

[Hedgehog]

I'd pull all the plugs and spray WD40 in all the cylinders. Let it rest for a couple hours, then pour in some marvel mystery oil and let it sit as long as you can stand waiting, maybe add a little more after a few hours. Marvel Mystery oil will do wonders for an engine that has sat for a while. You an also use it in your fuel to help clean the carb.

When you've waited a while leave the plugs out, I lay a cloth over the engine for this. Turn the engine over, it wouldn't hurt to use a wrench on the bottom pully. When things seem relatively smooth, hit the starter to blow out as much oil as possible. The cloth is there to catch flying oil.

I use the old plugs for this part. Clean the plugs, gap them and install. Start the engine. Don't rev it any more than necessary. Also try not to start it in a closed area, outside on a windy day is best because the thing WILL smoke and smoke a BUNCH until the oil is burned off.

Then clean things up and change the plugs. If it runs well keep an eye on the oil for water. Any additional water and you are going to have to start digging to find the answer as to why.

 

[Cdub982]

Thanks to everyone for your help, after ten years I got that love of mine to start last night, it was awesome! Now on to less serious stuff like tires and a battery.