Topic: fuel filter swap

[sharpxmen]

Not sure if there is a dye but it was in my engine a max of 10 minutes.  Did an oil change.  Ran it for 5 minutes then pulled the filter and dumped that stuff out.  We did it a previous times and saw bubbles so we wanted to try to replicate.  Color the same but not bubbles but still "0" oil pressure.

how can it have 0 oil pressure, doesn't make sense unless:
- the oil pump shaft is broken
- the pressure gauge is busted (did they put a mech gauge on it?)

still, are you missing coolant?

for a rebuilt engine you should not have that oil color after 5 minutes, not sure what is going on but it's weird

[bammerman]

At idle it has 0.  If I push on the gas it will go up to about 40 then slowly come back down. I was going to go buy a tester just to be sure to check or replace oil sending unit.  I added water into it.  I am with ya on the color of the oil.  called a friend of mine and he said it could be my head gasket like I said before but going to wait and show this to new mech to see what he says.

[bammerman]

I was missing coolant, not much maybe a few oz. I think that my mech, telling me to drive it home was a mistake and it messed up head gasket (at least pray not the head itself).

[bammerman]

Is there any test I can do to find out?  And if so is there a tool I need to buy?

[sharpxmen]

Is there any test I can do to find out?  And if so is there a tool I need to buy?

there is a radiator pressure test although not always relevant for this particular problem

[grumpygy]

Just got to ask what color antifreeze you using.  Also were you using straight antifreeze or premixed.

[bammerman]

Not sure the stuff he had in there was green I added a redish premix

[grumpygy]

What was the type you added.  Cause one good rule is not to mix colors.

Did it once and it cost me a radiator completly plugged it.

[bammerman]

It's prestone and says can be mixed with green.

[Jeffy]

Sounds like you might have mixed Dexicool with Glycol (green)  Never use Dexicool in your Jeep.

[bammerman]

Would that make the oil look like that though after running only 5 minutes, wait Nm I added the red after so that oil.was just from green

[Jeffy]

Would that make the oil look like that though after running only 5 minutes, wait Nm I added the red after so that oil.was just from green

No but Dexicoll is bad stuff.  GM had a recall for heads leaking after using that crap.

Really, I would expect to see the oil cleaner BUT I don't think you said if you rebuilt the engine or even bothered to flush it.  Could be really bad carbon build up in there.

[bammerman]

Engine completly rebuilt from bottom up. Only been on road maybe a max of 10 miles. I can try to do a flush after I figure out the 0 oil pressure. What is more likely a bad oil pump or blown head gasket?

[Jeffy]

Did you ever prime the oil pump when the engine was out of the Jeep?  I wouldn't trust the stock dash gauges at all at this point.  You need to put a mechanical gauge on the engine first.  Otherwise. spin the pump with an electric drill and take the valve cover off and watch.

[bammerman]

Nope I haven't really done much to the jeep pegged than that fuel pump and an oil change