Lol, one thing after another after doing my head and cam. I got it running perfect YET AGAIN for like the umpteenth time and was just cruising around trying to burn out my old tank of gas. I was about an hour and half into my cruise and was actually on the freeway on my way home. I was doing 70 and was in 5th to burn off gas.. I was keeping an eye on coolant Temps and iat ect..its vacuum stayed consistent, iat were slightly higher than normal but I was doing 5th so they were about 30degreees above ambient Temp ( iat was max 110) and my coolant Temps never even exceeded 180 degrees..
all a sudden my car filled up with FOUL smelling smoke and I pulled over immediately and found the sc spit out ALL its fluid from the front of it , I'm guessing the snout ? But I was only 2 miles from home soooooo I limped it back and it would barely accelerate . My belt was also shredded so idk if it seized up for abit or not.
so I got it back into its home and began yet another round of exploratory surgery and the results are in the video below..
you guys think this sc is now an anchor ?

https://youtu.be/FLLABz2Fo7E

 

Pics of the carnage? Do you think the front bearing went bad & took out the snout?

 

There should be NO play. Sounds like you need to open the SC up and have a look.

 

Yes, you're going to have to take it apart or simply replace it
it is curious though, there really aren't that many catastrophic failures with the M45.
Normally small problems lead to repairs before that.

​​​​​​

 

What a bummer, sorry to hear and wish you well with the fix.

I can't offer much help because I've never been in the guts of the s/c --- did do the service and refreshed the oil though so I do know that FOUL smelling odor you're talkin' about, man that stuff is super stinky!

The slop illustrated in your video may be the coupler?

http://www.gtt.uk.com/product/mini-g...drive-coupler/



Not sure about the seal burst though.

 

Agreed, open it up and check.

Bummer, hope you have it running again anytime soon

 

I will open it up and check it out asap

 

Ran across this in my searching, don’t know if it will help.

https://lexington.craigslist.org/pts...227568298.html

 

Do you think ziptie-ing your BPV shut so that your SC is making boost all the time......even while cruising...had anything to do with it? Your IAT's might have only gone up a little bit.....but I but the rotors, bearings, oil, and everything gets pretty darn hot when it's making boost full time.

If it was me, I would put a DT BPV on it when you put the new SC on the car.......and don't zip-tie it shut. There is a reason you don't see many people doing that.....

 

Looks like how’s the perfect time to ditch the m45 and go for the tvs900. Curious why anyone would zip tie their BPV? I don’t have much experience with the stock, because I installed a Detroit from the get go when I bought my R53.

 

You're not supposed to run with it zip-tied at all time, it's a simple test to see if it's working or not, now if he actually left it that way, well...

 

I guarantee that didn't cause its failure . People have deleted their bpv all together..once i feel a little better I'm gonna open it up and see what I can find..

 

People have done all kinds of stupid things to their cars....that doesn't mean it's a good idea.

There is a reason they designed the motor with a BPV. Having boost on the SC all the time equals load all the time.....equals lots of heat. You gain absolutely nothing from doing that except unnecessary heat and wear on the SC.

What makes you think that's a good idea?? As soon as you stomp the gas the BPV slams shut and you build boost.....you gain nothing from zip tieing it shut all the time.

 

it built boost MUCH sooner with it constantly shut. It didn't equal but an extra 10 degrees of heat, big deal..I won't argue it but on my set up it was MUCH more responsive with in constantly shut..go dig around old articles from back in the day when they'd do it . I have personally logged and watched any parameters that mattered and none were effected negatively to the point that would have caused failure.
I gotta get out there and better look at it . I'm just fight 2x absecse teeth , 2x ear infection and there still putzing on getting me into surgery. But soon here ille get out there n better look at it all.

 

Something must have been wrong with your BOV then......because with a proper functioning BOV, as soon as you stomp on the gas....it slams shut, and it's closed.....just like if it was zip tied shut. Closed is closed......doesn't matter if it's from a spring or zip tie.

​​​​​​And I know you are saying your IAT's have "only" increased 10deg (why is that so you think?)......but what about the overall temp of the SC itself and the oil?

I'm guessing you are going to find that you cooked a seal from too much heat.

Too each their own.....if you want to run around with your BOV tied shut all the time.....have at it.

 

I'd love to know who, because you are quite literally the first person I ever see mentionning this.

 

I’m interested in seeing what the damage is internally as well, sounds like it is bad, on maybe a lighter note i have an extra s/c for sale if you need , dm me

 

I would also not recommend this, likewise with a turbo car running without a diverter/blowoff valve. But in the end, each to their own indeed.

 

The extra strain of the shut bpv may have caused it to finally fail. I did have some minor play in it I knoticed when I did my hci but oil level was perfect and clean and the rotors looked in perfect condition from what I could see, I'm feeling half way decent so maybe ille pull the front off of it and check it out....
I'm gonna order a dt bpv too for my replacement sc I have coming then and see if that help responsiveness....

 

Ya think?? Ofcoarse it did.........it's like running a turbo car with the wastegate and BOV pinned shut. You don't want boost all the time, especially when you let off of the gas.

Don't try to reinvent the wheel...the BPV is on there for a reason.

 

Correct, you caused compressor surge, there was no question about that.
The only question was, we're you causing enough compressor surged to damage the unit.
You have now answered the question.

Some turbo guys will run without a BOV because they like the sound of compressor surge more than a BOV, but.... It will shorten the life of any compressor, turbo or S/C.
How much shorter, simply depends on the health of the compressor and amount of pressure/boost you're forcing back through it.
​​​​​​

 

If a tied shut bpv caused my sc to fail then it didn't deserve to be on my car. From all the research I've done the little extra strain isn't much and I want to be able to run my car as hard as I want with no failures so I guarantee had I actually ended up going to a track day event this summer I guarantee my sc would not have survived . Lesson learned also, I won't be keeping my bpv shut on my replacement sc BUUUUT I did order a DT bpv for it to see how that helps build boost.
and unfortunately ALL the kavs 20% lw pullies are sold out so it looks like my 17% will be going back on.

 

WOOOOOOOOW , this thing was wayyyyyy over filled. I swear I drained it all before refilling but there was literally sludge in it . As you see in the pic thats how much oil came out after I opened it up and it spit out enough oil to coat my under hood and tire well cover area, literally like 1/4qt of oil atleast all together.
Are the rotors coated too ????
I cannot find the issue of the problem , I attached a video to see if you guys can tell.. is there something I'm missing or overlooking with it???
I already have a replacement on the way so if this ones still good I guess I have an extra or to sell it..but I need to know if it exact condition before I attempt to sell it or have to reinstall it encase of emergency.

 

Yup...
that too will cause extra pressure inside the unit since it's a closed system.
That's why the units are only filled to a certain level instead of full, to leave room for pressure and fluid expansion due up cavitation.

And yes, that expansion is far more likely to do damage than compressor surge, but running a closed BPV all the time, is still not a good idea.
​​​​​

 

If that's your attitude....might as well run 87 fuel in your car. Because if it can't run in 87 without detonating....I don't want it.

How old are you??