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136k Miles, and yes cranks like normal. Chevy Mechanic: Vince S. If you were to pinch off the hose from the filter assembly to the injector pump will it hold pressure. If it holds i woukd then loosen the steel line from the pump to the fuel rail and see does any metal come out of it.LB7 Duramax 2004. Broke the crank while towing. Here’s what it sounds like. Motor entirely rebuilt by DFC Diesel less than 60,000 miles ago. LB7 Duramax 2004. Broke the crank while towing.What did you torque the bolt to, some say in the range of 275 lb ft, SoCal has it listed as. Crankshaft Balancer Bolt. 1st Step 74 lb ft. 2nd Step 105 degrees. SoCal Diesel - LLY Duramax Torque Specs. Let me know when your done with XDP alignment tool/kit as I may be interested in purchasing it after your done... ~ Mike H ~ .Feb 16, 2022 · In this episode of XDP Tech Tips, we talk with our tech expert Mike to find out everything we need to know on what the XDP Duramax Crankshaft Pin Kit does, h... LML long block. I purchased a 2015 Chevy 3500 with a broken crank. Truck has 125,000 miles with little to no work ever done under the hood, so most everything is original. Looking to purchase a reman LML long block and part swap everything over. With what little research I’ve done so far, sounds like I should purchase a new CP4 fuel pump …D. davester. 3863 posts · Joined 2015. #2 · May 6, 2017. It is HIGHLY unlikely (but not absolutely impossible, like 1 in a million broken cranks) for the crankshaft of a diesel engine to be broken, and for the rear of the crank to be driven by the starter and for the front of the crank to rotate normally. Perhaps you could tell us who "some ...Nov 26, 2018 · Broken cranks seem to be a very rare problem for Duramax's. People would need to have some fairly sophisticated equipment on a running engine to track how harmonics from the camshaft would eventually result in damage to the crank. broken crank. Jump to Latest Follow. 5K views 20 replies 7 participants last post by SilverGorillaLML Jan 21, 2016. tracygto Discussion starter. 117 posts · Joined …LML crank No Start After Rebuild. 2016 LML duramax, cp3 swapped (before rebuild all tuning is for cp3 swap), fass 165, installed Mahle performance pistons and rings, I’ve bled all the air you can possibly think. Maybe there’s more left. I’m between 430-450psi in all cylinders as well, did a manual compression test after completing the ...Nov 28, 2014 · I've got 3 LB7/LLY broken cranks here. They all do it, but the LB7/LLY cranks have a little more weight to them so they are preferred if you're building the motor. Not sure if it makes a difference which crank you have, I did go with a used LLY crank that was mag tested in my LMM though. Truck had a broken crankshaft. Replaced crankshaft. Does crankshaft position need to be relearned? I know it does on some GM vehicles. Truck runs and drives but has p02CD cylinder 1 injector exceeded limits and p02D3 cylinder 4 injector exceeded limits. ... Duramaxdiesels.com was founded in 2006 and created a site which houses …May 4, 2020. #1,241. Several billet cranks broke at the limited pro stock power level this past pulling season. This is an assumption, but given the caliber of the builds, it's a safe bet they were narrow rod, internal balance, and/ or at very least, AF cams. Talking 1300-1400 hp. Sent from my SM-G960U using Tapatalk.This thread: Broken Crankshaft Count? - Duramax Diesels Forum and this: Broken Crankshaft Alt Fire Cam - Duramax Diesels Forum "BBT" -- 2003 GMC 2500HD CC/SB 4x4 - 12.14 @ 111.15 Marlene (Molly) Bacon -- 1936 - 2019 -- RIP Mom You're missed both at home and on the piano. Save Share.Product Details. Avoid catastrophic engine failure from a sheared dowel pin in your 2001-2016 GM 6.6L Duramax with the XDP Duramax Crankshaft Pin Kit XD331. From the factory, your Duramax uses a dowel pin on the crankshaft to hold the balancer in place. In both stock and performance applications, these dowel pins are easily sheared causing …Chevy / GMC Duramax 06-07 LBZ & LLY Forums. 06-07 LBZ & LLY Performance Parts Discussion. Broke Crankshaft on LBZ. Jump to Latest Follow ... Harley had his crank broke by getting backlashed too. A dyno operator backlashed the crank at a dyno/sledpull event, by letting off at high rpm and nailing the dyno and truck brakes at …Engines. Dissecting 6.6L Duramax Engines. Whether you’re looking for fun or looking to win, the Duramax platform is certainly one to consider. The Duramax …Pour the CLR into the bucket and add the steel lines. let them sit like 30 to 45 minutes. The rust is gone and lines look new. Take a dremel with a small cup wire brush and clean the flares and inside the nuts (Threads) with it, swish around in the CLR again and then wash them good with Water.

916 posts · Joined 2006. #6 · Feb 2, 2010. Lbz. My'07 is an LBZ My Customer's '08 is the LMM with a new style 2 piece crankshaft. '92 K3500 Dually 6.5 fuel plus 20% JD TO4 turbo 3'' down & 3.5'' ex 5 speed. 07' Duramax Dually Quadzilla Programmer at 70HPfor now. 87' 6.2 K10 banks hairdryer plus 50% fuel (Dailly driver)#1. Got the motor out and found the second from the front Main bearing spun pretty good. The bearing was pretty well chawed up. Way undersize at this point. …Broken Crank? Thread starter awsmv6; Start date Feb 2, 2020; Forums. Duramax 6.6 Technical. Duramax Hard Parts. LMM . A. awsmv6 New member. May 18, 2014 ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. We strive to keep this the #1 forum for …Rotate the crank until the gap in the reluctor wheel teeth straddles the flange mounting surface of the upper oil pan. Loosen the nut on the oil pump, pull the oil pump drive gear off. Slide the reluctor wheel assembly off. You MIGHT have to 'clearance' the mating surface on the upper oil pan.Oct 7, 2009. #3. Depending on how much power your going to lean on it with. I would make sure you have about .0028-.003 clearance in the main bearings too. I believe under the added stress, it's helping the crank flex a little, squishing out the oil jacket and then it makes contact with the bearing (caused my spun bearing I believe because I ...

The duramax engine has a long history of breaking cranks at that location. This is so much of a common issue that people have created cam shafts with altered firing orders to try to remove the stress from that point on the crank. Plenty of stock trucks have broken cranks like this.What did you torque the bolt to, some say in the range of 275 lb ft, SoCal has it listed as. Crankshaft Balancer Bolt. 1st Step 74 lb ft. 2nd Step 105 degrees. SoCal Diesel - LLY Duramax Torque Specs. Let me know when your done with XDP alignment tool/kit as I may be interested in purchasing it after your done... ~ Mike H ~ .…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Just wondering if anybody has had any luck just replaci. Possible cause: 2006 Chevy Duramax LBZ CCSB, LT3, MBRP 4 inch exhaust, AFE intake Stage.