Broken crank

[bigbird]

Sorry to hear that.

Thanks for posting about it. If anyone gives you grief about posting truck problems let me know. Very few failures ever get posted.

x2, always impressed with the guys who are willing to share when things go wrong. good luck.

 

[paint94979]

x2, always impressed with the guys who are willing to share when things go wrong. good luck.

x3 when guys don't share any info it makes it hard to fix problems.

 

[Leadfoot]

Sorry to hear about your issues, that sucks. I really liked hearing about your truck at the strip from the guys.

Quick question. You said the first indicator was low track times, and then you said at 100' it let go. Did the snout/balancer come flying off the motor, or something else. Just wondering how much collateral damage that could cause if any.

Hope you get it straightened out and back to the track soon.

 

[1badmax]

update

Heres a little update,
billy got the motor torn down and found out the crank is broken on the second lobe.
The good news is nothing else got hurt,all the main bearings and rod bearings look perfect, the cylinders and piston are perfect as well.
ill update more when i get more info

 

[JoshH]

Thanks for the update. Any indication of why it broke? You planning on putting a stock crank back in?

 

[dmaxvaz]

Heres a little update,
billy got the motor torn down and found out the crank is broken on the second lobe.
The good news is nothing else got hurt,all the main bearings and rod bearings look perfect, the cylinders and piston are perfect as well.
ill update more when i get more info

thats good to hear, also are you going with another stock crank? or one of those crower billet standard stroke?

 

[Big Angry]

Well, good to hear it looks like nothing else was damaged Jay. Keep pluggin' brother, can't wait to see it tearing up the track again! :happy2:

 

[RickDLance]

Heres a little update,
billy got the motor torn down and found out the crank is broken on the second lobe.
The good news is nothing else got hurt,all the main bearings and rod bearings look perfect, the cylinders and piston are perfect as well.
ill update more when i get more info

Call me when you get a chance.

 

[jmoore]

Sorry about the bad luck. But at-least nothing else was damaged. Hope you get it back together soon.

 

[mainer]

sorry to hear about the crank jay,

scott at mass diesel had a dmax in there the other day with a broken crank in the same location as yours, seems to be the place they let go, it was a stock bottom end with only moderate power

 

[ripmf666]

sorry to hear about the crank jay,

scott at mass diesel had a dmax in there the other day with a broken crank in the same location as yours, seems to be the place they let go, it was a stock bottom end with only moderate power

If that the truck i'm thinking about its a LBZ. The guy is from PA and was running dual cp3s and Hot+2 et on 7. truck was told to be getting done fast and its been almost 3 months now and they have not even got the block work done. I offered to help they guy save and build his but after looking at all my pics said it was over his head.

 

[Drholliday]

sorry to hear about the crank, hope its back up soon. low 10's in a 7100 lb truck is nasty!