LML Twins and Opinions

snowman22

snowman22

Member
Jan 30, 2018
299
8
18
SoCal
FROGMAN524 said:
So just did a 1,500 mile road trip this last week through southwest Colorado mostly in Durango, Silverton, Ouray, Ridgeway and Telluride. Had a lot of fun and the truck ran well but the valley turbo started making wierd noises going up and down the steep grades when using tow haul and/or the turbo break. Only happens when coasting and as soon as I apply throttle and the veins change position it goes away. Remember, this turbo was new and has already been rebuilt once by Danville after it failed at 700 miles.

Here’s a video for reference:

https://youtu.be/QG2C7EWT__k
Click to expand...

I would be looking for an exhaust leak up to the valley charger. The drive pressure is going to the moon while the vanes are closed to operate as a brake.

It could also be the turbo but an exhaust leak would be easier to spot first.
 
D

Digmax

Member
Jan 23, 2016
289
2
18
snowman22 said:
I would be looking for an exhaust leak up to the valley charger. The drive pressure is going to the moon while the vanes are closed to operate as a brake.



It could also be the turbo but an exhaust leak would be easier to spot first.
Click to expand...
For sure.... sounds like a blown gasket on up pipe to me. Or cracked bellows.

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FROGMAN524

FROGMAN524

Member
Jul 17, 2010
613
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I’ll have to check it out but doesn’t make the drive leak noise any other time including WOT


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FROGMAN524

FROGMAN524

Member
Jul 17, 2010
613
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I’ll send the video to them and see what they say. Just started doing this this trip


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FROGMAN524

FROGMAN524

Member
Jul 17, 2010
613
4
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So the first time my Danville turbo failed, after the stealth had failed, the compressor hit the cover I believe and seized up. They switched from the batmo wheel to their normal billet wheel when they rebuilt it. We’ll see what the cause is this time but I’d like to get it fixed before it seizes up and leaves me stranded again. Send the video to Sean at Copperhead so we’ll see what he thinks and he can talk with those guys over there.


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FROGMAN524

FROGMAN524

Member
Jul 17, 2010
613
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The stock turbo was fine, then I put the stealth 64 in and it immediately threw VPS codes and was swapped for the new Danville, that seized up at 700 miles and was pulled out and rebuilt with a different compressor wheel, and now that same turbo again is making these noises. If I have to pull this out I’m demanding money back and labor cost to put in a Dans Diesel 64 VGT. Figure I can’t be wrong 4 times.


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zakkb787

zakkb787

<that’s not me...
Sep 29, 2014
2,340
52
48
Granite Falls NC
I can’t help but wonder if you have an underlying issue. If it’s just bad luck causing 3 turbos to fail, make sure your life insurance policy is paid up lol
 
Bdsankey

Bdsankey

Vendor
Vendor/Sponsor
Feb 1, 2018
4,225
1,330
113
Larsen, Wisconsin
FROGMAN524 said:
The stock turbo was fine, then I put the stealth 64 in and it immediately threw VPS codes and was swapped for the new Danville, that seized up at 700 miles and was pulled out and rebuilt with a different compressor wheel, and now that same turbo again is making these noises. If I have to pull this out I’m demanding money back and labor cost to put in a Dans Diesel 64 VGT. Figure I can’t be wrong 4 times.


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Click to expand...

I mean who else would be left, Dans/Fleece/Wold?
 
N2BRK

N2BRK

Well-known member
Dec 31, 2009
2,066
399
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Damn. I think I’d put the stock turbo back in the valley until you find what’s really wrong. 3x doesn’t seem like bad luck or coincidence.
 
FROGMAN524

FROGMAN524

Member
Jul 17, 2010
613
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Dans diesel will be my next stop and after that I’d be wanting to go back stock or get a different truck all together.


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zakkb787

zakkb787

<that’s not me...
Sep 29, 2014
2,340
52
48
Granite Falls NC
FROGMAN524 said:
Dans diesel will be my next stop and after that I’d be wanting to go back stock or get a different truck all together.


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Click to expand...

I really think instead of throwing more money into another turbo you need to find out if you have an issue somewhere else. Maybe a slightly kinked oil feed. Or something. I’m not well versed in turbos but I don’t believe under any circumstance that three turbos, two of which came from a company with one of the best reputations out there for them, have failed in such a short time. They have to be starved for oil for some reason or getting too hot.
 
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