Comp turbo failure less than a mile

Elmo370z · 08-07-2017, 05:37 PM

Fact that these turbos are failing doesn't vote much confidence. What other options do we have that offer the same characteristics as this comp oiless turbo?

jwick · 08-08-2017, 07:46 AM

Quote:

Originally Posted by Elmo370z

Fact that these turbos are failing doesn't vote much confidence. What other options do we have that offer the same characteristics as this comp oiless turbo?

The Precision turbos perform equally or better than the Comp. The benefit of the Comp is not requiring the oil system. I was never a fan of an oil-less turbo. That's a lot of heat to deal with to not have proper cooling.

Chuck33079 · 08-08-2017, 08:10 AM

Quote:

Originally Posted by jwick

The Precision turbos perform equally or better than the Comp. The benefit of the Comp is not requiring the oil system. I was never a fan of an oil-less turbo. That's a lot of heat to deal with to not have proper cooling.

I've never really felt ok with an oil-less turbo. So, you add grease every few thousand miles, but you never open it up and clean out the old grease - how does it not turn into a sticky gummy mess after 30k miles?

sx moneypit · 08-08-2017, 08:12 AM

Quote:

Originally Posted by Chuck33079

I've never really felt ok with an oil-less turbo. So, you add grease every few thousand miles, but you never open it up and clean out the old grease - how does it not turn into a sticky gummy mess after 30k miles?

SouthArk370Z · 08-08-2017, 09:02 AM

Quote:

Originally Posted by Chuck33079

I've never really felt ok with an oil-less turbo. So, you add grease every few thousand miles, but you never open it up and clean out the old grease - how does it not turn into a sticky gummy mess after 30k miles?

For the industrial bearings I've worked with, the new grease pushes the old grease out the sides of the bearing (or some type of vent). In the case of a turbo, I would assume most of the grease will ooze out on the exhaust side and be sent out the tailpipe.

Based on my experience with high-temp bearings, I would give the bearing a shot or two of grease* much more often than 3000 miles. Maybe once a week for a DD.

YMMV. All my experience is with industrial equipment and not turbos.

* Just how much would depend on type of bearing, size, etc.

Rusty · 08-08-2017, 07:11 PM

Quote:

Originally Posted by SouthArk370Z

For the industrial bearings I've worked with, the new grease pushes the old grease out the sides of the bearing (or some type of vent). In the case of a turbo, I would assume most of the grease will ooze out on the exhaust side and be sent out the tailpipe.

Based on my experience with high-temp bearings, I would give the bearing a shot or two of grease* much more often than 3000 miles. Maybe once a week for a DD.

YMMV. All my experience is with industrial equipment and not turbos.

* Just how much would depend on type of bearing, size, etc.

In most bearing set-ups that I have dealt with. There is a hole that has a pipe plug in it that has to be removed when greasing the bearing. The hole is 180deg from the zerk fitting. This hole is where the old grease is suppose to come out of. If the old grease is hard. You have to use something to poke a hole in the hard grease to get it to flow out of the hole. An auto-greaser might work. We was trying these when I retired.

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08-07-2017, 05:37 PM	#1 (permalink)
Elmo370z A True Z Fanatic Join Date: Apr 2013 Location: st. petersburg Posts: 5,725 Drives: 09 nissan 370z Sp M6 Rep Power: 295379	Fact that these turbos are failing doesn't vote much confidence. What other options do we have that offer the same characteristics as this comp oiless turbo?