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2002 4.7 blown engine1Bradymichael 03-24-2007, 04:14 PM I have a chance to buy, very cheap, an 02 with a blown engine, which has a 4.7. Just wondering if anyone here would have any thoughts as to where the best place to get parts for the rebuild would be? Is this engine known for trouble, and am I better off finding a used engine? I would like to rebuild it as I like to do that kind of thing and have the tools, but am not really a Dodge guy and not as familiar with them. Thanks for any input 1Bradymichael 03-28-2007, 12:56 PM Anyone? t-bank 03-30-2007, 07:49 PM I've got the 4.7 in my 2003 Ram quad cab 1500 with 72K miles. Even with a truck this big I've always had all the power I need and then some. Regular maintenance and she purrs like a kitten. I've got a 5.2 in a 99 Durango but I can't help but believe that the 4.7 would be an even better performer in the lighter vehicle. I'd go for it! rimfire,22 05-01-2007, 11:56 AM I have a chance to buy, very cheap, an 02 with a blown engine, which has a 4.7. Just wondering if anyone here would have any thoughts as to where the best place to get parts for the rebuild would be? Is this engine known for trouble, and am I better off finding a used engine? I would like to rebuild it as I like to do that kind of thing and have the tools, but am not really a Dodge guy and not as familiar with them. Thanks for any input 1Bradymichael, My 01' Durango with the 4.7 has give me very loyal performance for me since bought. Depending where you live the engine has been plagued with sludge problems but here in California I have not!! This is mainly due to short trips in very cold weather, not allowing the oil to get up to normal operating temperature. For yourself I too would consider rebuilding the entire engine instead of putting in a used version. Once that's done just do your typical breaking period and use a synthetic oil. I use it in every oil change. rimfire,22:grinyes: wafrederick 05-03-2007, 07:17 PM The 4.7 is expensive to rebuild.Look into a reman too and stay away from ones from auto parts stores.The warranty sucks and use cheap parts.Look into a Jasper,the best reman engines out there with the best warranty out there.It is not fun to change and thank the engineer for that.Is it a 4x4 or a 2wd?If it is a 4x4,the front differantal has to come out.To get to the 2 top bellhousing bolts,you have remove the intake manifold.The 4.7 must be a big piece of junk,I replaced 2 of them in a row.One was in a 2001 dakota with a broken camshaft and ruined the cylinder head.One was a 2004 durango,the oil change was about 20,000 overdue and sludged up very good.An used 4.7 goes for $1,000.00 and up depending on the miles,my father bought one with 31,000 miles for $1,200.00.You will have to get a special tool kit to work on the 4.7 from Miller tool which makes Chrysler's specialty tools.Without those special tools you are not going to work on the 4.7. tch1717 05-23-2007, 09:52 PM i've been a mechanic at a chrysler dealership for about 7 years now (in southwestern ontario, canada), and in that time, i think i've only had to rebuild about 7 or 8 4.7's, mostly due to owner neglect, true the parts are pricey, i.e. timing set...cam gears, 3 timing chains, idler gear and crank gear are about $600 CAN., plus guides and tensioners, but i've found this engine fairly reliable., as for special tools, i've managed to build many with tools from my box, the only thing you should have is a angle torque meter for head bolts and main bearings (this tool is fairly cheap), it also helps to have the miller tool for the timing chain install, but you don't necessraily need it if you have 6 hands or 2 friends helping !!!lol, have fun and good luckl vBulletin®, Copyright ©2009, Jelsoft Enterprises Ltd.
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