Comp turbo failure less than a mile

knuckles899

Thank you Sasha for the fast reply, I am curious to hear Comp's response on the cause and what they would like to do. One of my concerns with the grease fitting falling out is that the grease when heated in the turbo liquefies and is supposed to cool/lubricate the turbo from what has been described to me about these oil-less turbo's. Without the fitting there I can only assume that the grease has now leaked out basically running the turbo somewhat dry or just not efficiently lubricated/cooled by the grease anymore possibly causing this turbo to prematurely to wear.

Rusty

I've worked on a lot of equipment that had pressed in zerk fittings. Had to replace a bunch of them too. Grease systems are not high pressure. Once you remove the gun. The pressure goes away. When greasing. Once you get the first fill of grease in. After that, you only need two to three pumps of new grease into the bearing. Any more then that. You CAN over grease the bearing and damage it. Some bearing housings will have a plug 180 degrees away from the zerk fitting. On these. You remove the plug and grease until you see some grease start to come out of the plug hole. When you do, stop greasing and install the plug.

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Boosted Performance

From COMP:

He can reinstall the fitting we can send one out tomorrow very easy install . Or if the customer doesn't feel confident we will pay for shipping both ways .

The stem is indwwd threaded in to the bearing housing.

This is what makes COMP the company of choice for me. It is Easter Sunday, and issues are getting resolved, and customers are being taken care of.

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Rusty

The next time OP greases the turbo. Only do 3 pumps or less to grease. Don't try and force the grease in. When the handle starts to get hard to pump, STOP! If You try and force it. You are now using hydraulics, and you WILL do damage. You can force the zerk fitting out, and damage the bearing seals.

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knuckles899

I can certainly put the new one in myself, but I still would be a little concerned about the overall health of the turbo since its had 700 plus miles put on it with no idea when it fell off. Was it not torqued down properly in the first place? what is the torque spec they recommend?, are these prone to falling out and should be checked every trip? Is there a high temp loctite that should be used? Should the turbo be sent to Comp for inspection?

I just want to make sure every little thing gets smoothed out with the Comp turbo's. So far its been great but I can only imagine that if this were to fall out and someone not catch it in time that it could severely damage the turbo and possibly someones engine when it lets go. I would be curious on Comp's response on how bad not having this fitting in the turbo would be since the grease leaks out without it.

Thanks for checking in with them Sasha

knuckles899

Just to clarify for the thread so this doesn't become a "installation error or greasing error or user error thing " I have not even opened the grease, grease gun or grease gun hose. I have not greased this turbo yet and the zerk fitting just fell out at some point in time just driving the car.

20180401_181309_resized by , on Flickr
20180401_181313_resized by , on Flickr

Rusty

I'm just giving you a heads up on greasing.

A press fit zerk fitting is not screwed into place. As there are no threads. So there are no torque specs. You have to either press them in, or beat them in. I have used a socket, extension and a hammer to tap them in place.

Problem you may have is a slightly bigger hole then what is called for. Or the zerk was undersized. One is the reason why the zerk fell out.

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The zerk is threaded into the stem, and the stem is threaded into the center section. Nothing is pressed in.

OP, I will check with COMP on the torque spec, and other things mentioned.

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Rusty

I was going by on what you had said earlier. About them being pressed in. And no threads in the hole.

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Yup... I assumed wrong First time this year that I have been wrong...had to happen eventually.

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Rusty

You're excused.

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knuckles899

Would anyone else be concerned that their turbo wouldn't be sufficiently lubricated if this happened to them or am I crazy for thinking this, wouldn't it be equivalent or close to running a oiled turbo without the oil lines connected?

Rusty

Long as the bearing got grease, it's happy. Unlike an oiled system. Once you shut off the supply of oil. It's dead. I can't really tell in your pictures if there is grease or not in the holes. Take the end of a zip-tie and stick it in the hole, twist it around to see how much grease is in there.

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JIN2012

Could someone request a Garrett turbo with the kit?

lj909

Well, as long as we're asking. What about a Borg Warner efr?

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