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Broken connecting rod carnage pics. #2770021 05/01/20 02:40 AM 05/01/20 02:40 AM
Joined: Jan 2007 Posts: 10,124 A Red State SNK-EYZ OP I Live Here
SNK-EYZ OP I Live Here Joined: Jan 2007 Posts: 10,124 A Red State	I thought that I'd post some broken connecting rod carnage pics. This is the 5.7 Hemi from the 2004 Durango that I picked up with a bad engine. The story was the guy went out to start it on a day that we had 10+ inches of rain, fight on start up it started knocking. Apparently it's a common problem on that era Durango with a Hemi once they get over 100k miles on them the water runs down off the cowl onto the engine and the intake o-rings can let water seep past. The amazing part was that other than sometime having an initial knocking noise on start up, it ram smooth and quiet after that. I finally started swapping over the Durango specific parts (oil pan, etc) onto the replacement engine so I took some carnage pics. It's crazy that the number 6 cylinder piston it turned 90 degrees from where it should be in the bore. Kayse can't keep up at all now. lol

Re: Broken connecting rod carnage pics. [Re: SNK-EYZ] #2770085 05/01/20 10:37 AM 05/01/20 10:37 AM
Joined: Jan 2003 Posts: 3,704 MICHIGAN DynoDave master
DynoDave master Joined: Jan 2003 Posts: 3,704 MICHIGAN	Yikes! DynoDave Walter P. Chrysler Club - Great Lakes Region Member # 12304 1970 Plymouth Duster 1972 Dodge Charger Rallye https://wichargerguy.proboards.com/ 1977 Chrysler Cordoba

Re: Broken connecting rod carnage pics. [Re: DynoDave] #2770297 05/01/20 10:48 PM 05/01/20 10:48 PM
Joined: Jan 2007 Posts: 10,124 A Red State SNK-EYZ OP I Live Here
SNK-EYZ OP I Live Here Joined: Jan 2007 Posts: 10,124 A Red State	Originally Posted by DynoDave Yikes! That's an understatement. Powder forged rods don't like hydraulic lock up. Old style forged rods usually just bend or stop the engine from turning over, powder forged one just break. Kayse can't keep up at all now. lol

Re: Broken connecting rod carnage pics. [Re: SNK-EYZ] #2770493 05/02/20 04:32 PM 05/02/20 04:32 PM
Joined: Jan 2005 Posts: 12,419 Kalispell Mt. H HotRodDave I Live Here
HotRodDave I Live Here H Joined: Jan 2005 Posts: 12,419 Kalispell Mt.	We have started pushing all of our customers with those to do intake gaskets every 100,000 as a simple preventative maintnance. I have seen a ton of those and the story about starting it after rain is pretty much universal and the only way water gets in the cylinders is through flattened intake gaskets. I am not causing global warming, I am just trying to hold off a impending Ice Age!

Re: Broken connecting rod carnage pics. [Re: SNK-EYZ] #2772538 05/08/20 05:06 PM 05/08/20 05:06 PM
Joined: Jun 2005 Posts: 2,776 Ontario Canada M MattW master
MattW master M Joined: Jun 2005 Posts: 2,776 Ontario Canada	Pop a new piston and rod in and JB weld the hole! Good to go!

Re: Broken connecting rod carnage pics. [Re: MattW] #2772663 05/09/20 12:00 AM 05/09/20 12:00 AM
Joined: Jan 2007 Posts: 10,124 A Red State SNK-EYZ OP I Live Here
SNK-EYZ OP I Live Here Joined: Jan 2007 Posts: 10,124 A Red State	Originally Posted by MattW Pop a new piston and rod in and JB weld the hole! Good to go! Considering what it took to get the engine out, I'll just finish putting in the replacement engine. Kayse can't keep up at all now. lol

Re: Broken connecting rod carnage pics. [Re: SNK-EYZ] #2772762 05/09/20 09:39 AM 05/09/20 09:39 AM
Joined: Jun 2005 Posts: 2,776 Ontario Canada M MattW master
MattW master M Joined: Jun 2005 Posts: 2,776 Ontario Canada	Seriously mag the block if nothing else wrong. That hole is an easy fix, if you need the block. Matt

Re: Broken connecting rod carnage pics. [Re: SNK-EYZ] #2778818 05/27/20 05:41 PM 05/27/20 05:41 PM
Joined: Aug 2007 Posts: 601 Mass C charge70 mopar
charge70 mopar C Joined: Aug 2007 Posts: 601 Mass	Originally Posted by SNK-EYZ I thought that I'd post some broken connecting rod carnage pics. This is the 5.7 Hemi from the 2004 Durango that I picked up with a bad engine. The story was the guy went out to start it on a day that we had 10+ inches of rain, fight on start up it started knocking. Apparently it's a common problem on that era Durango with a Hemi once they get over 100k miles on them the water runs down off the cowl onto the engine and the intake o-rings can let water seep past. The amazing part was that other than sometime having an initial knocking noise on start up, it ram smooth and quiet after that. I finally started swapping over the Durango specific parts (oil pan, etc) onto the replacement engine so I took some carnage pics. It's crazy that the number 6 cylinder piston it turned 90 degrees from where it should be in the bore. Do the ram pick-ups have this problem also? I own an 05 Daytona and if it should have the intake gaskets replaced,I'll do them.Thanks. Last edited by charge70; 05/27/20 05:44 PM. 1970 Dodge Charger R/T S.E. 1969 Dodge Dart GTS 440 M-Code 1970 Dodge Charger 500 383/4-speed w/A.C.

Re: Broken connecting rod carnage pics. [Re: charge70] #2778864 05/27/20 07:31 PM 05/27/20 07:31 PM
Joined: Jan 2007 Posts: 10,124 A Red State SNK-EYZ OP I Live Here
SNK-EYZ OP I Live Here Joined: Jan 2007 Posts: 10,124 A Red State	Originally Posted by charge70 Do the ram pick-ups have this problem also? I own an 05 Daytona and if it should have the intake gaskets replaced,I'll do them.Thanks. I think that it's mainly a Durango issue since how the water drains off the cowl is one of the reason it happens. Half the engine is under the cowl on a Durango. But as Dave has said, Quote We have started pushing all of our customers with those to do intake gaskets every 100,000 as a simple preventative maintenance. I have seen a ton of those and the story about starting it after rain is pretty much universal and the only way water gets in the cylinders is through flattened intake gaskets. I think that the intake gaskets/seals should be replaced every so often to avoid the possibility of it happening. IMO They flatten out and quit sealing properly with time. On a side note, I got the replacement engine in the Durango fired up last week and it's licensed and being driven now. Last edited by SNK-EYZ; 05/27/20 07:34 PM. Kayse can't keep up at all now. lol

Re: Broken connecting rod carnage pics. [Re: SNK-EYZ] #2778974 05/28/20 06:02 AM 05/28/20 06:02 AM
Joined: Jul 2008 Posts: 30,424 Florida STAYcation dOc ! The village idiot's idiot
dOc ! The village idiot's idiot Joined: Jul 2008 Posts: 30,424 Florida STAYcation	??? ... so there’s a opening in the intake stream ENUFF to allow water inside the engine but there’s no HUGE VACUUM LEAK SOUND or negative running issues??

Re: Broken connecting rod carnage pics. [Re: dOc !] #2779041 05/28/20 12:06 PM 05/28/20 12:06 PM
Joined: Jan 2007 Posts: 10,124 A Red State SNK-EYZ OP I Live Here
SNK-EYZ OP I Live Here Joined: Jan 2007 Posts: 10,124 A Red State	You have a small vacuum leak, but the computer compensates by adding more gas to the fuel injection to help smooth it out. It actually does run a little worse/rougher but most people would never notice it. Kayse can't keep up at all now. lol

Re: Broken connecting rod carnage pics. [Re: SNK-EYZ] #2779097 05/28/20 02:21 PM 05/28/20 02:21 PM
Joined: Jan 2005 Posts: 12,419 Kalispell Mt. H HotRodDave I Live Here
HotRodDave I Live Here H Joined: Jan 2005 Posts: 12,419 Kalispell Mt.	It is an air leak, the throttle body is a computer controlled air leak, if the idle speed goes up due to the air leak the confuser simply closes the throttle a little more to maintain the same idle as if there was no vacuum leak. The fuel trim is adjusted by the computer also by watching the O2 sensors so there may be no noticable ill effect from the vacuum leak unlike a carb that will not add fuel when the air bypasses the throttle and a carb also has no way of turning down the idle speed with an air leak so stuff really gets out of wax with it. Add in things like secondary air doors that rely on the proper vacuum to work properly and a carb is a mess with an air leak while you may not notice anything with an EFI engine leaking vacuum. I am not causing global warming, I am just trying to hold off a impending Ice Age!

Re: Broken connecting rod carnage pics. [Re: HotRodDave] #2779252 05/28/20 08:40 PM 05/28/20 08:40 PM
Joined: Nov 2006 Posts: 2,254 IL furious70 top fuel
furious70 top fuel Joined: Nov 2006 Posts: 2,254 IL	yup, and not just modern cars, my Classic FAST EFI equipped 383 totally hid a substantial intake leak for quite awhile- the idle air control motor compensated. Eventually though it got to the end of it's range and the inability to idle down after warm up is what clued me in. 70 Sport Fury 68 Charger 69 Coronet 72 RR

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