Breaking in new motor With new turbo

[WolfLMM]

What's the proper way to break in a new engine with a new turbo? Of course the turbo mfg says break motor in first then install the charger. Obviously worried about break in contaminates hurting the bearings in charger.


I don't see how that can be since the oil is filtered before it goes thru turbo... I'm of the opinion to put it all together and break in the way it's going to be run. If you have a good counter argument to that I'd like to hear it.

I've read of people installing filters on feed line, but still the oil in feed line is fresh from the engine oil filter...shouldn't need filtering again...the only scenario I can think of where that helps is if the builder left debris in the block galley from machining and/or debris from the feed line.

Some people say break in without the new turbo install (twin kit so I could leave it off) idle it till operating temp, then change oil, filter install charger and go have fun. Others say break it in with new turbo installed in the same manner

So let's add to the confusion:spit:

 

[Chevy1925]

it depends on where your oil feed is coming from if you get technical about it.

if its from the stock spot, oil must go through the mains, rods and cam before it hits the turbo.

if you feed off on of the first or second ports by the mains, obviously much less crap can get to the turbo.

 

[WolfLMM]

James, I'll be honest, I've never installed or had a twin turbo Duramax. I'm using an hsp kit and oil is coming from passenger side galley, is the two ports to choose from? New game for me.

 

[Chevy1925]

James, I'll be honest, I've never installed or had a twin turbo Duramax. I'm using an hsp kit and oil is coming from passenger side galley, is the two ports to choose from? New game for me.

i was assuming a "single charger" but it still applies. the valley turbo generally gets the sotck oil supply unless you change it to something different via a kit or your own way to a port from the driverside or pass side main oil galley.

the big turbo generally only gets it oil from the number one main on the passenger side. there is only one port on that side.

 

[WolfLMM]

Ok so the atmo is the new turbo, pulling from there would be clean enough I would think.

The 68r is going back in the valley, it will be subject to dirty oil lol. It's got plenty of miles on it tho. I could rig a temp feed line for it easily enough tho...

 

[Chevy1925]

journal bearing turbo or ball bearing for atmosphere?

 

[JoshH]

I'm not sure why it matters if it is a new or old turbo.

 

[clrussell]

Waid it doesn't matter anyway you'll forget all this info by the time your trucks runs again

:sheephump:

 

[Burn Down]

I personally run my new engines for 2-300 miles at varied throttle positions and no more than 3/4 throttle, dump the oil and filter, cut filter and inspect. Fill with fresh oil and filter and let it eat.

 

[Blackmax123]

Every body has different views and opinions on engine brake in. Let my idle a few min. Then ran it up to 2 heat cycles changed oil and filters and took it to the truck pulls.

 

[WolfLMM]

Waid it doesn't matter anyway you'll forget all this info by the time your trucks runs again

:sheephump:

Eh, I'll just get it running and sell it

 

[diesel-max]

What's the proper way to break in a new engine with a new turbo? Of course the turbo mfg says break motor in first then install the charger. Obviously worried about break in contaminates hurting the bearings in charger.


I don't see how that can be since the oil is filtered before it goes thru turbo... I'm of the opinion to put it all together and break in the way it's going to be run. If you have a good counter argument to that I'd like to hear it.

I've read of people installing filters on feed line, but still the oil in feed line is fresh from the engine oil filter...shouldn't need filtering again...the only scenario I can think of where that helps is if the builder left debris in the block galley from machining and/or debris from the feed line.

Some people say break in without the new turbo install (twin kit so I could leave it off) idle it till operating temp, then change oil, filter install charger and go have fun. Others say break it in with new turbo installed in the same manner

So let's add to the confusion:spit:

Im just impressed somone actually read the directions :roflmao:

 

[c20elephant]

How many of you manually prime the oil system prior to "attempting" to start a rebuilt engine, they usually don't fire right up and sometimes connections are missed and fail to start immediately.?

 

[DMAXchris]

How many of you manually prime the oil system prior to "attempting" to start a rebuilt engine, they usually don't fire right up and sometimes connections are missed and fail to start immediately.?

No priming here. Motor has 50k at 700rwhp. Mine was at the track with less than 500 miles on it.

 

[DAVe3283]

No priming, cranked it until it had oil pressure then plugged in the FICM fuse and fired it up. Idled it long enough to look for fuel/oil/coolant leaks, then shut it down.

Next morning, hooked a trailer (~20,000 lb GCVW) and ran up a 6% grade until I was satisfied the rings were good and seated. Been daily driving on a 660 RWHP tune ever since (~15k miles now).

Seems to have worked out OK, because the blowby is nearly stock despite larger ring gaps, and oil consumption is barely measurable. 1/10th of a quart in a 3,000 mile oil change seems to be the new normal.

 

[WolfLMM]

I'm not sure why it matters if it is a new or old turbo.

I agree. At this point, I'm of the opinion to just put all together and break in all at same time.

 

[Chevy1925]

I agree. At this point, I'm of the opinion to just put all together and break in all at same time.

im with Corbin on this situation anyhow :roflmao: :hug:

 

[WolfLMM]

He asked me if I was on meth the other day:rofl:

 

[clrussell]

He asked me if I was on meth the other day:rofl:

I did? Lol

 

[CarolinaHD]

Well, are you?

Who's your guy?