Imploded Turbo

MtnClimber · **Posted:** Mon Jul 03, 2017 3:25 pm

My turbo just imploded yesterday. I hope that the engine didn't ingest any of the broken vanes since I initially did not realize that the turbo was obliterated. Just thought it was a blown upper CAC hose (small hole in the curve just after the turbo) and replaced the hose. Started it up but not after having it struggle to start. Once started seemed fine although smoking pretty bad. Shut it off for about a minute then restarted it but only after what felt like severe back pressure while cranking. Again once started seemed fine until I started to rev the engine...now I here the turbo whining terribly and then some clattering. Shut it off went to look under the hood and find lots of oil dumping out from below the turbo. Turns out the impeller had imploded and the turbo itself had seperated into two pieces.

Now to figure out how to determine if I did any major damage to the engine or am I just looking at cleaning the CAC, the CAC hoses, the intake tube and draining the oil alkng with getting a replacement turbo?.

Presuming I didn't toast the engine, just need to decide if I get the Stigan Turbo or go with the Sasquatch Turbo.

Thoughts??

Chris

MtnClimber · **Posted:** Mon Jul 03, 2017 6:41 pm

Any suggestions on detrimining if the engine sucked in any of the impeller shrapnel other than tearing it down and inspecting the jnternals?

flash7210 · **Posted:** Mon Jul 03, 2017 6:50 pm

The intercooler will trap any large pieces.

Remove the drivers side cac hose.
If the inside of the hose looks like glittery oil then there is a good chance you got glitter all the way through the intake manifold.

geordi · **Posted:** Mon Jul 03, 2017 8:58 pm

I'm more concerned about how much oil your engine has lost - the turbo is connected to the main oil gallery, and that will become a firehose of oil if unrestricted.

How much oil is left in the pan?

MtnClimber · **Posted:** Mon Jul 03, 2017 11:43 pm

Geordi can't tell right now how much oil is in it as the jeep is sitting on a slope in the driveway. Need to get it up in the garage so I can check. I know it was good last weekend as I had to top it off as it was down below my 6.4 qt mark but above the low line.

I will try to push it in the garage tomorrow so I can check it. More than likely I'll drain it to see what's actually in the pan.

WWDiesel · **Posted:** Tue Jul 04, 2017 12:56 pm

Any of the larger or heavier particles of metal that are capable of doing any damage to the engine top end will have fell to the bottom of the inlet side of the CAC (intercooler).
You should remove the CAC, shake out any larger particles, and wash and clean it out thoroughly! :wink:

MtnClimber · **Posted:** Wed Jul 05, 2017 2:32 am

flash7210 & WWDiesel thanks for the info regarding the large chunks just dropping in to the CAC (intercooler). I will definitely remove the CAC (intercooler) and flush it out.

What is the best thing to use to flush it with? Same goes for the engine?

GordnadoCRD · **Posted:** Wed Jul 05, 2017 3:00 am

For cleaning out my intercooler, I cleaned it out of the vehicle, front facing down, and over the course of a month, went through roughly a quart of Dawn Heavy Duty Degreaser, and over 4 gallons of Super Clean. (plus a small swimming pool worth of water)
I also used 2 T-handle clam guns, and a couple of pickup inner tubes to alternate pressure and vacuum on the inlet and outlet to make a kind of washing machine effect.
The only ultrasonic cleaners around were at Radiator shops, and there was no way they were going to allow that thing in their tanks, since it had been completely filled with what was once Motor Oil.
I stopped when it sat full in the sun for a day without having an oil-slick at the water's surface.
Once clean, though, they were happy to charge me $20 to pressure test it, and put that special black radiator paint all over it.

As for the engine, anything that could go in is 1) extremely small (like microscopic), and, 2) already done what it's gonna do.

I recommend pulling the cac hose, EGR elbow, and cleaning them with detergent wash, pressure wash, whatever you have available, and look for fine silvery powder. If there is a lot of it (like measurable buildup) then take a strong cotton rag with one end in a battery drill and stuff the other end up into the intake manifold. Run the drill a few seconds one way, then the other way. Anything that made it past that in your situation is really not worth worrying about.

I also very very highly recommend, at the very least, blocking off the exhaust line to the EGR if you haven't already. That will do far more towards your engine longevity than removing anything that made it into your intake manifold at this point. If possible, this would be an opportune time to install a weeks kit, and clean up your engine compartment.

WWDiesel · **Posted:** Wed Jul 05, 2017 2:45 pm

X2 on all that Gordon suggested! Soaking with any good commercial type degreaser solution mixed with some water should do the trick! :wink:

Repeat soakings until no oil residue comes to the top of the liquid, then flush good with clean water, then let it dry out.
Some use a shopvac cleaner discharge hose connected to one of the connections to blow warm air through it to dry it out...

:SOMBRERO:

MtnClimber · **Posted:** Fri Jul 07, 2017 12:54 am

Thanks for the suggestions guys...Hopefully I can get it in the garage this weekend so I can start taking a closer look and assesing if any other damage was done other than the turbo letting loose.

diesel_guy86 · **Posted:** Sat Jul 08, 2017 9:50 am

If you dont have a month to spare, pour a quart or 2 of gas in it. Cap the ends and shake it around, drain it (i dumped it on some weeds around the garage, weed killer also) and let it sit in the sun for awhile for any remaining gas to evaporate out and your done.

papaindigo · **Posted:** Sat Jul 08, 2017 11:53 am

If you decide to go this route I'd use kerosene instead of gasoline. Much less flammable and compatible with diesel.

MtnClimber · **Posted:** Thu Jul 13, 2017 6:16 pm

Update -

Drained the oil and got ~3 1/4 qts out of it. No signs of any metal pices in the oil. I've removed the turbo and am in the process of dissasembling it to see if i can determine ehat may have caused the failure, but have run into difficulty removing the turbine wheel from the exhaust turbine side of the turbo.

I'm still in the process of removjng the intercooler, but still need to figure out how to remove the lower mounting bolts.

In the process of sourcing another turbo. Going with the Sasquatch turbo.

MtnClimber · **Posted:** Thu Jul 13, 2017 6:22 pm

papaindigo wrote:

If you decide to go this route I'd use kerosene instead of gasoline. Much less flammable and compatible with diesel.

papaindigo would it be alright to flush the engine itself with kerosene if i wanted to clean any other gunk or deposits in the engine keeping in mind that i would be doing the flush with a non running engine?

GordnadoCRD · **Posted:** Thu Jul 13, 2017 8:12 pm

Mineral spirits would probably be less flammable, and clean just as well.

AZ CRD · **Posted:** Sat Jul 15, 2017 8:44 am

Biodiesel is a pretty good solvent as well.

papaindigo · **Posted:** Sat Jul 15, 2017 12:39 pm

"papaindigo would it be alright to flush the engine itself with kerosene if i wanted to clean any other gunk or deposits in the engine keeping in mind that i would be doing the flush with a non running engine?"

In my opinion NO too much risks of other sludge coming loose and going who knows were. Oil passages in this engine are in some cases tiny and easily clogged. I doubt any debris from the turbo made it thru the intercooler and your oil drain would seem to confirm that. On another note getting 3.25qts out is both good and bad - bad in the sense that you lost a lot of oil but good in the sense that you probably had enough oil left that the bearings did not get starved although I'd suggest you PM geordi for his opinion on that.

Clean the intercooler and do a very short (say 200 mile) oil change interval once you are back running.

Imploded Turbo

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