Broken Crankshaft Count?

[malibu795]

I have a 2012 lml at work now with 58K and a busted crank. Just wanted to add it to the list lol

thats no good

i heard there is a TSB out for the oil pump on the 11 and newer trucks?

 

[juddski88]

just for a weird humming....so far in almost every case, thicker oil has fixed it. a lot of these newer emmisions diesels are being run with 5w-40 syn oil for some reason and its just way too light for our motors

 

[Ming15237]

just for a weird humming....so far in almost every case, thicker oil has fixed it. a lot of these newer emmisions diesels are being run with 5w-40 syn oil for some reason and its just way too light for our motors

So what grade oil are you running to help prevent this?

 

[juddski88]

just 15w-40 in stock motors. I run Cen-Pe-Co 20w-50 in my truck.

 

[hondarider552]

Wonder if oil cooling could be a part in this. Im sure its very little, but after the temps I have seen, it wouldn't surprise me.

 

[juddski88]

part of which issue, the cranks breaking or the LML pumps humming?

 

[DMAXchris]

Add another one to the list. My cousin's snapped on his very first pass at the track 2 nights ago. Truck made 2 more runs and went 11.96@104. :rofl: Only has 13,000 miles on the build.

07 LBZ
Built motor
100%s
s472/GT5533
16.5:1 CR

 

[juddski88]

Falco is his last name right?

 

[DMAXchris]

Nope. Close though.

 

[juddski88]

OK, but it is the one that David built a while back?...

 

[DMAXchris]

Yep! Same truck that DuramaxTuner blew up, then sent to Dave because my cuz didnt want pink slippers and his hack mechanic touching it again. 3rd time's a charm they say!

 

[hondarider552]

Broke on the very first pass? What a slap in the face..

 

[Anthony@SunCoast]

What do you mean that duramaxtuner blew up?

 

[jkholder09]

Did you mag the crank after the first repair?

 

[DMAXchris]

Did you mag the crank after the first repair?

I don't know what those hack-jobs did. The first time it didn't even have any machine work done. I'll post an explanation when I have more time to type.

 

[zeke38]

I don't know what those hack-jobs did. The first time it didn't even have any machine work done. I'll post an explanation when I have more time to type.

Hey I didn't eithier... but I was broke at the time and it was my only shot of getting it going lol. Still running luckily 65k later

Sent from my SPH-L710 using Tapatalk 2

 

[jkholder09]

Ok thanks for the replies, just trying to get some good info on the why what when here.
Post what you have
thanks

 

[Slammed2007Lbz]

I don't know what those hack-jobs did. The first time it didn't even have any machine work done. I'll post an explanation when I have more time to type.

I hope Calebs putting it together this time

 

[DMAXchris]

Got a few pics of the damage.

 

[Burn Down]

Got a few pics of the damage.

Want to cut those broken pieces off and send them to me? Id like to look at them under the micoscope.