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  #1  
Old 08-17-2011, 02:34 AM
pistolero pistolero is offline
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Lightbulb rebuild 4.7?

hey guys first time poster looking for some answer about my 2002 4.7 ram 1500. so to start off it has blown top rad hose once. replaced that day. drove no more then 100 yards...then drove another 40,000km and lower rad hose blew no i wasn't driving it was my father and well he just finished driving it home prolly almost a few KM. ouch i know what an ass (who is also a 30yr auto mech). ok so now I replaced the lower rad hose and went to fire it up just to see what would happen and i started getting coolant and water out rad reservoir cap. anyways i check oil and it had bout 1/4-1/2inch more on stick than before looked a little like it had water in it. so I am asuming that i have a head gasket gone and warped head? now a crate motor is around 5300 buck. would it be cheaper to rebuild it myself with performance parts put in and do the labour with my much wiser uncle who doesnt know he is helping yet. but serious i love the truck no other yr gets the smile across mine or my wifes faces. so yeah rebuild or crate.
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  #2  
Old 08-17-2011, 11:42 PM
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RedRam10 RedRam10 is offline
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Well - how many KM are on the truck at this time? Were there any other issues prior to the present? I'd do the rebuild, as you find the problem if it is too bad you can always head to the Crate Motor.
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Old 08-18-2011, 07:45 AM
pistolero pistolero is offline
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um around 190,000km.......only other issue i had was when i would come down from highway speeds and hit my first light sometimes second. i could get a metal on metal sound until i would reach about 15-20km/hr. its really hard to explain. it was kinda like the brakes would seize in the rear ( it deff sounded from the rear) checked diff no filings was clear. and changed rotors but even when i would gear down to a stop i would get the sound and vib so i am thinking it wasnt a brake issue.. but other than that nothing truck is a beauty. oh and i had a heat issue but checked blend doors and they were good. had same heat on inlet and outlet of core so thinking it was thermostate. but yeah. I am thinking rebuild aswell long as the block is not cracked. heads will prolly be an issue too but couple hundred bucks in the shop fixes that.


so anyone have any suggestions on a rebuild kit.. and what i can do to take the pony's up a few notches...... thanks for the warm welcome crew at the ForumsZ....
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Old 08-22-2011, 08:39 AM
JayDee240 JayDee240 is offline
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I asked my local garage about a rebuild, they said the best and cheapest way to go is to buy a junkyard engine and have it put it. They sell used, engines with warranty with less than 50,000km on eBay for around $2000 (in my local area). My garage quoted me at $2000 parts and labor for a 60,000 mile engine swap. Or $4500 parts and labor for a rebuild of a 180,000mile engine.
190,000km is like 120,000miles? I personally would not trust a block with 120,000 miles that over heated, but that's just me.
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Old 08-22-2011, 10:27 AM
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you can contact the guy at air ram, check out his site, might give you ideas to rebuild yours to get more power. You might even be able to buy a junkyard 2nd gen 4.7L(2008 and newer) and use the newer heads, intake, exhaust to get more power. Not sure on that though, talk to the guy at air raim he'd know.
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Old 09-20-2011, 12:36 PM
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I would not be too concerned with the block, rather I would do a compression test and/or a cylinder leak down test to determine the cause of pressurization of the cooling system.

If you decided to rebuild, you can have the block checked for cracks but if you have not overheated the vehicle to the point of it seized, Id be looking at the upper end on the engine.

In all of my years of turning wrenches professionally I have never replaced a block due to overheating. I have heard of cracked blocks due to being heated but you have to of really heated the engine up. Replace a lot of cylinder heads and head gaskets!

I have installed a lot of used engines from the yards. Use engines from trusted salvage yards! Or try rebuilt engines from Jasper, ATK, or some other vendors. The two I mentioned have proven to me as excellent rebuilders with great warranties. There are others out there, look around.

Start with diagnoising the system first before diving in with a total rebuild.

Last edited by THK; 09-20-2011 at 12:41 PM.
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Old 09-20-2011, 12:49 PM
THK THK is offline
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Should you go for a rebuilt engine with a warranty, go for the additional warranty that is offered. Reason being, rebuild manufactures will give a higher labor rate allowance then the standard $40 $50 offered

When I installed one of these engines, I always opted for the greater warranty without informing my customer. For the hundred or so, that it cost, saved my customers out of pocket expenses should the need arise. I always sold this at cost to them.
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Old 10-17-2011, 03:26 PM
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know im a little late but i head gasket change is not that bad if you have just a little motor since. with the heads it is a 50/50 shot as to if they are warped you can rebuild the entire top end for what they said and get ho or 206 cams to boot i did mine about 5/6 months ago think it end up just under 3k but i changed rad., water pump, h.o.cams, timing chain kit with sprockets, lifters, val. springs and headgasket. so my upper end is new so i have no worries with it anytime soon
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