Recent content by Duramax_9505

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    LML Callies Durastar Crankshaft Issues??

    Good morning, gentlemen. Keep an eye out these next couple of days as I am told Callies will be making a formal statement regarding this issue.
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    LML Callies Durastar Crankshaft Issues??

    It does have the EPC fooler plug so it is running full pressure @ 230psi.
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    LML Callies Durastar Crankshaft Issues??

    This is what our thrust surface looks like.
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    LML Callies Durastar Crankshaft Issues??

    Crankshaft is out. Here are the thrust washers. They(Callies) say they think they have found the smoking gun, but don't want to put the cart in front of the horse. We will get a phone call tomorrow with an answer...
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    LML Callies Durastar Crankshaft Issues??

    The truck is on the road 24/7 running coast to coast. Averaging 4-5k miles a week.
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    LML Callies Durastar Crankshaft Issues??

    What is causing the increase in clearance is unknown at this point. From what we can tell(crankshaft is still in the block just in case engineering at Callies wants more measurements), the rear, upper thrust washer is taking the beating. The lower one one does not look shaved down, but over...
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    LML Callies Durastar Crankshaft Issues??

    During assembly, we had .0065" of clearance/endplay. That changed dramatically because the lower thrust washer was about to fall out and find its way into the oil pan. The upper one, well, let's just say it was happier when we put it in during assembly....
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    LML Callies Durastar Crankshaft Issues??

    Recently had a 2015 LML come in with a "losing coolant, no leak concern". Determined to be a head gasket failure. After tear down, noticed stress cracks around the bowls of the pistons(no surprise there). Customer opted to tear down further for an engine rebuild with some upgraded parts to...
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    Exhaust Brake - trouble, VERY FRUSTRATED

    Old thread, but did anyone figure out the problem? Have a 2011 LML that is doing the same thing. Thinking maybe it could be the switch. Just stopped working for no reason.
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    LB7: Max fuel pressure

    Old thread, I know, but did you ever figure anything out on this truck? We have a 2004 in right now that is hanging out at 22-23kpsi rail pressure at idle. Previous shop replaced the regulator and fuel pressure sensor. Both new from bosch. Truck does have an Airdog and the pressure was way too...
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    Belt and Tensioner issues at 5000+rpm

    Not running dual fuelers. Single 14mm.
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    Belt and Tensioner issues at 5000+rpm

    Looking for some info on the best belt and tensioner combination for a pulling truck. Consistent logs of 5000+ RPM and walks the belt off the tensioner every hook. Any information is greatly appreciated!
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    LMM: Shut off while driving. Intermittent crank but no start

    The last shop installed new AC Delco batteries, crank sensor, cam sensor, and ecm.
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    LMM: Shut off while driving. Intermittent crank but no start

    Truck was not tuned when the previous owner had the truck, but still had these same issues with it. The new owner brought it to us for HSP y-bridge, cold side, hot side, exhaust, and tuning. With that being said, im certain that tuning has nothing to do with it. Guess the previous owner got...
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    LMM: Shut off while driving. Intermittent crank but no start

    The electrical gremlins have taken over! 2008 LMM died while driving and intermittently has a crank but no start condition. Customer states that if he lets it sit for a while, it will start. Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time...
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