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MalibuMafiaV MalibuMafiaV is offline
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Default have I seriously gone through 3 N54's in 1 year? - 11-09-2017, 12:50 PM

This is my 3rd! yes 3rd! N54 low miles. Good logs ( they're posted in the log section ) and now this? wtf is this? I'm hoping it's just a head gasket. Or at the most a cracked head...

https://www.youtube.com/watch?v=N9fMqRupPL8

I used a tiny camera to look inside a bit. I found cyl 3-4-5 becoming steam cleaned by coolant. The ignition coils were also extremely wet. Cyl 4 misfired and I immediately pulled over turned car off and found that. Luckily I was close to home and coasted in Natural back with the engine off.

I have not started it since. I pulled all the plugs and they all look fine. I opened the oil cooler top holes. No coolant in the oil that I can see.

What are your guys thoughts? I have a compression tester sitting here I can use as well.


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Default 11-09-2017, 01:12 PM

Wow what the hell! Are those pits an area where water would get to if there was a head gasket issue? Was the coolant contaminated? Did the car overheat?
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MalibuMafiaV MalibuMafiaV is offline
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Default 11-09-2017, 01:17 PM

Quote:
Originally Posted by Vorsprung_CJB
Wow what the hell! Are those pits an area where water would get to if there was a head gasket issue? Was the coolant contaminated? Did the car overheat?
no contamination and car dd not overheat.

Where the coolant is sizzling are just small little pits on the cylinder head. The coolant just collected in there from coming out of some where else. I have no idea where.... and that's where I stand with this.


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Default 11-09-2017, 01:30 PM

time to think about an N55

jk hope it all works out


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MalibuMafiaV MalibuMafiaV is offline
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Default 11-09-2017, 01:36 PM

Quote:
Originally Posted by Newguy123
time to think about an N55

jk hope it all works out
Ha. And have the same if not worse issues. Thanks man I hope it works out to.

Like I said if it's just a head gasket? cool that **** I can replace myself in my garage.


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Default 11-09-2017, 05:00 PM

Don't you have to remove the turbos and re-do the whole valvetrain timing with N54 head gasket?
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Default 11-09-2017, 07:22 PM

Quote:
Originally Posted by Vorsprung_CJB
Don't you have to remove the turbos and re-do the whole valvetrain timing with N54 head gasket?
Yup!

IMHO, I'd rather just swap motor than do a head gasket swap.


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MalibuMafiaV MalibuMafiaV is offline
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Default 11-09-2017, 11:48 PM

Quote:
Originally Posted by Payam @ BMS
Yup!

IMHO, I'd rather just swap motor than do a head gasket swap.
Head gasket replacement or head is the only option at this point. Or sell car as is. If I get ANOTHER engine that would be the 4th engine Iíve put in this year in 1 year.


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Default 11-10-2017, 01:22 AM

There is a cool place in a great place. It seems there is a crack in the head itself rather than head G / K.


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Default 11-10-2017, 09:35 AM

A leaking head gasket doesn't seem like it would be able to get coolant in those holes ... you confirmed it was actually coolant in the pits, not just water?

No sign of coolant anywhere except the pits and coil holes, and evidence of steam in the chambers - together, that makes me think cracked head.

Would be interested to find out where and how it cracked.


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Last edited by LessIsMore; 11-10-2017 at 09:42 AM..
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Default 11-12-2017, 01:57 PM

Are we sure that it's not fuel?

My coolant (BMW) is a purpleish color.


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Default 11-12-2017, 03:50 PM

I see your running a 6266, what HP levels are you at? What are your mods? Who has been tuning the car?


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Default 11-13-2017, 07:51 AM

Quote:
Originally Posted by Payam @ BMS
Yup!

IMHO, I'd rather just swap motor than do a head gasket swap.
No way, I can do a head gasket swap in the car in under 10 hours. Pulling a motor and transferring everything over is a huge hassle. If you are running the right turbos, just two V-bands and the head comes out, turbos stay where they are.


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MalibuMafiaV MalibuMafiaV is offline
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Default 11-14-2017, 11:48 AM

Quote:
Originally Posted by iminhell1
Are we sure that it's not fuel?

My coolant (BMW) is a purpleish color.
Definitely not fuel.

Quote:
Originally Posted by natedog7700
I see your running a 6266, what HP levels are you at? What are your mods? Who has been tuning the car?
Was only on 17-18psi. Nothing crazy. same tune EVERYONE else uses. Jb4 w/ MHD backend.

Quote:
Originally Posted by LessIsMore
A leaking head gasket doesn't seem like it would be able to get coolant in those holes ... you confirmed it was actually coolant in the pits, not just water?

No sign of coolant anywhere except the pits and coil holes, and evidence of steam in the chambers - together, that makes me think cracked head.

Would be interested to find out where and how it cracked.
Yeah that's what I'm pretty sure it is to is cracked head. I'm just selling the car as is though. Already have a buyer. Taking a huge loss on the car. But don't care at this point. 4 engines in 1 year isn't suppose to ever happen.


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Default 11-14-2017, 11:57 AM

Quote:
Originally Posted by Tony@VargasTurboTech
No way, I can do a head gasket swap in the car in under 10 hours. Pulling a motor and transferring everything over is a huge hassle. If you are running the right turbos, just two V-bands and the head comes out, turbos stay where they are.
To each their own, re doing the timing etc is not for me. Swapping stuff over is simple, esp when we've already done it hundreds of times.


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Default 11-14-2017, 01:31 PM

not sure of you saw this ...
http://www.n54tech.com/forums/showthread.php?t=49778

Suck to take a big loss on it, but sanity is worth something too

Curious - did you buy all the engines from the same place? If they blew so quick, any of them still within a 30/90/etc. day warranty?

Never heard/ seen of anyone cracking an N54 head ... I'm sure it's happened, but that would make me suspect it wasn't 100% when you got it.


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Last edited by LessIsMore; 11-14-2017 at 02:16 PM..
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Stucks Stucks is offline
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Default 11-16-2017, 05:03 AM

Did you do a compression test and leakdown of the new motors upon acquisition of them? Perhaps you just have bad luck and picked up some not so great condition motors?


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