COMP Turbo Oil-Less Service Question
 

Doing the first service since installing my BP v2 kit.

I read up that COMP recommends:

"For an engine mount setup, 6 pumps every 2500 miles."

https://docs.wixstatic.com/ugd/3bacc...66a4997609.pdf Pg13.

But Sasha once mentioned:

"...and for maintenance all that is needed is a shot of high temperature grease every time you are doing an oil change."

A shot implies to me a single pump, and some other members on here have stated 3-4 pumps. So now I'm thoroughly confused. So how many pumps should I give it tomorrow?

Also, I typically do the usual engine oil service every 3000 miles. Do I need to do it sooner now or is 500 miles extra realistically not that much difference? Comp Turbo also state for a rear mount setup that service interval is 3000 miles, but I wouldn't really call the BP design engine mount either being so low (implication being seeing more airflow over it, than tucked deep in an engine bay) and tucked up near the gearbox. I've also seen other COMP turbo users on here say they service every 3000-5000 miles.

Cheers,

I just sent COMP an email to get additional clarity, and will report back.

Much appreciated sir!

Curious to know how much the bearings feel after greasing...with air filter off.
When new,they are a smooth snug feel...very unlike an oiled turbo bearing/ wasn’t sure if they free spin much more when in need of grease?
Good Question :tup:

I remember it felt like it was packed with thick sludge when it was brand new. I had to reposition my dump pipe today and took it off, and even when cold now it felt noticibly easier to spin. Also when shutting the car off while hot it takes about 10-12 seconds to stop spinning, and while cold it takes at most 2-3 seconds.

I haven't greased it again yet till I get a response. If it changes at all after pumping the grease in I'll report back but I doubt it.

Happy to report zero shaft play too. :)

Shouldn’t have any radial or axial play,,,as bearings don’t rely on oil to take up clearance. Would be good to know how it feels after lube.
I know how they feel new.

4-5 pumps, as per COMP rep every 3k miles. On P13 of the installation guide, which can be found on the COMP website, they say 6.

As for free rotation...the grease turns to liquid when at operating temperature and greatly reduces rotational resistance. This is why the turbo will spin for up to 30 seconds after engine shut down.

5 it is. Thanks mate.

Stiffened up a bit after re-greasing but not as stiff as it was brand new. Had a minor heart attack when the nozzle wouldn't come off the zerk fitting after the 5 pumps. Ended up figuring out you need to loosen the head and that it's designed this way to lock onto the zerk fitting while pumping.

Unsure if grease gun hose has 1/8” pipe thread end...these work well; they seal tight & release easy.

You was getting a hydraulic lock on the zerk fitting. The bearing cavity is full of grease and the pressure was holding the nozzle on the zerk. You are at full capacity in the bearing. Next time, only do 4 pumps. Too much grease is not good for the bearing either.

I don't think so. After figuring it out, I was able to re-produce that 'lock' without additional pumping. Similar to those screw drivers with multi-bits that have a locking nut that when tightening locks the bit in place through compression, it's the same thing here. It's an odd design but it works fine.

When I was working. I would run into this hydraulic locking of the fitting all the time on equipment.

The grease fitting on the grease is adjustable to fit tighter or looser ....if you set it too tight it is difficult to get back off ...I don’t know if all of them are like this or not

Question regarding the location of the zerk fitting on the Comp turbo. Do you think that as the hi-temp grease liquefies, the small amount of grease thats in the housing will puddle in the zerk fitting itself? Being that the fitting is facing down id assume gravity would essentially puddle the grease into the fitting. Obviously the fitting needs to be accessible to re-grease but didn't know if this could be something that needs to be discussed. Or does the grease even really get that thin.....does it maintain tackiness at full temp?*

Just a thought