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Planning a rebuild (over time)


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I have an 03 1500 Quad Cab, 4 X 4 with a 4.7. Its got 240k on it now. I've ...


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Old 09-08-2016, 02:31 PM   #1 (permalink)
 
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Default Planning a rebuild (over time)
I have an 03 1500 Quad Cab, 4 X 4 with a 4.7. Its got 240k on it now. I've always wanted to rebuild a complete engine (kinda wish I'd done it years ago when I was running Chevy 350's all the time). But I never did & clocks ticking. My truck runs great & is a daily driver. I have it hot oil undercoated for years now, pretty good shape. So my plan is to build a motor, just stock, & hopefully the engine that is in the truck will last. I have about $250 a month to throw at this. All I have now is an engine stand. Would like to hear some opinions on where I should start to look for motor. Junkyard, Craigslist, maybe buy complete junk truck with good motor, pull myself etc.

I know this thread will be slow going but I hope it gets some attention. I mean I'm very mechanically inclined, have swapped motors before, 3 tree tripod lol, but I'd love to get allot of advice & opinions here. I have about $500 right now (cause I got engine stand) & in a couple weeks back up to $750 & so on & so on.

Where would you get/look for an engine??

Thanks in advance. Have a good day!

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Old 10-11-2016, 09:27 PM   #2 (permalink)
 
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Well, yesterday on the way home from work I was driving 65 to 70, came up a hill, truck decelerated to 60, I stepped on gas & it felt like engine just shut off. Well I mean it did, so I coasted to stop in break down lane, checked some things out. I did the key 3 times to see code & it said "done" which I literally took to mean blown, caput.

So I called triple A, waited & while I was waiting I tried turning truck over, it started up, all gauges reading normal, got out looked around under hood, noticed white smoke from exhaust. Then I noticed no more white smoke, but couldn't hear engine over highway traffic. Got in & looked at gauges, truck off. So driver of tow truck got there, I explain & he says head gasket.

So I have a backup vehicle, a 98 dodge B2500 with a 3.9, so I'm going to drive that, pull the 4.7 & tear it down & send block off to a machine shop & hopefully they can give me advice on what to do. I assume bore it the minimum as I want to keep things slightly low money wise so no big performance build here.

I know this thread is probably quite boring but I do plan on updating it as I go, maybe add some picks as I pull it & tear it down. I'm a first timer doing this so again if anyone feels like making some suggestions they'd be more then welcome.

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Old 10-11-2016, 09:53 PM   #3 (permalink)
 
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It might seem like fun, but you are lucky to have 240,000 on a 4.7 without major problems.

I have never completely rebuilt a 4.7, but I've been all over one

From what I have read there are like 3 different sizes of crank journal bearings, and some times the wrong ones can be sold to you even from an experienced dealer or on line shop.

You will need head work which you cannot do yourself, you will need a bunch of special tools like ring compressors and plastic gauges and micrometers to read the plastic gauges.

Not meaning to sound discouraging but a dodge 4.7 is not the motor to start on if you want to practice rebuilding.

But if you are brave and have time plus some money to spend it can be rewarding!

Curiosity... how did you get that many miles on it and retain oil pressure? Did you buy it used and someone had replaced motor parts or?? I have only seen a hand full of 4.7's that run at all close to 200,000. Mine will be one but I did heads and oil pump already. Turned over 177,777 today have pics lol.


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Old 10-12-2016, 10:16 AM   #4 (permalink)
 
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Thanks JAMMAN, yeah I pulled over on highway & took pics when it turned 200 000. And yeah, I watched a video on a 4.7 rebuild & the guy talked about the bearing issue. And I do have plenty of time, I work every other week, money, not so much, I figure I got $250 to $300 a month to spend, so that's why I say over a long period.

I guess I assumed that the bearings (journals) would get shaved, so that would change what I'd need anyway, not sure. And bore it out & get next size pistons, I also assumed I'd be buying a new crank. Or if I can get away with turning it. I need to find some books or good info online, library, book store about rebuilding.

As far as how the 240k, I did buy it with 37 k on it & as far as I know it was clean. Motor not touched. I tried my hardest to change oil every 4000. 5 years ago I had hip issues (had both replaced) & I put surgery off for a couple years, so Sullivan tire did all the work that I needed done. At one point they changed plugs & snapped one, had to pull head & have it machined out. So they replaced things like water pump. You know, they were there so replace what you can. And around the 200 k mark my oil gauge took forever to get up to middle, rapping would occur (light rapping) & then would kick in & rapping go away. I spoke to a mechanic friend & he told me to give "hot shots stiction eliminater". Did half a quart every oil change & changed at every 3000 miles just cause of age (miles) & it worked, right up until Monday when broke down. When I started it, oil gauge would snap right up, no knocking at all.

And prior to using the stiction eliminater I drained a quart of oil & dumped in a quart of mystery oil (marvel) & drove around for 45 minutes, then drained, filter, added half quart stiction & rest reg quaker state 5w 30. All suggested by my mechanic friend, at the end the other day, motor sounded like the day I bought it.

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Old 10-12-2016, 02:14 PM   #5 (permalink)
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Originally Posted by JAMMAN View Post
It might seem like fun, but you are lucky to have 240,000 on a 4.7 without major problems.

I have never completely rebuilt a 4.7, but I've been all over one

From what I have read there are like 3 different sizes of crank journal bearings, and some times the wrong ones can be sold to you even from an experienced dealer or on line shop.

You will need head work which you cannot do yourself, you will need a bunch of special tools like ring compressors and plastic gauges and micrometers to read the plastic gauges.

Not meaning to sound discouraging but a dodge 4.7 is not the motor to start on if you want to practice rebuilding.

But if you are brave and have time plus some money to spend it can be rewarding!

Curiosity... how did you get that many miles on it and retain oil pressure? Did you buy it used and someone had replaced motor parts or?? I have only seen a hand full of 4.7's that run at all close to 200,000. Mine will be one but I did heads and oil pump already. Turned over 177,777 today have pics lol.
I've got 240 on my 4.7 still good oil pressure and pulls strong. Just blew head gasket myself so I'm also starting my build. Since your engine wasn't oil starved meaning no rod or main bearing issues. You may not have to cut them at all. Unless the numbers come back showing wear. My mustang had 200k and the block didnt even have a ridge on it. So I was able to reuse my pistons but not crank.
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Old 10-12-2016, 02:27 PM   #6 (permalink)
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Any suggestion on a vendor for the rebuild kit
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Old 10-27-2016, 11:15 AM   #7 (permalink)
 
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Well, its been allot of thought going into this, allot of reading, watching videos etc. And I've decided to go ahead with the remanufactured engine from accurate engines, http://accurateengines.com

The whole saving up & going slowly, it would take me a year to get it done. I live in New Hampshire & have an hour ride to work, winter coming, 4 X 4. So I'll be pulling the old 4.7 out, taking things I'll need for new nakid long block (oil pan, valve covers, timing cover & accessories).

I work every other week, so hopefully I can get it done within a month + -, hopefully -. Anyone out there do this using accurate engines? If so I'd be interested in asking a few questions thanks everybody

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Old 10-28-2016, 04:18 PM   #8 (permalink)
 
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Just ordered engine, $2839 total, be delivered Nov 4.

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Old 10-28-2016, 04:30 PM   #9 (permalink)
 
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Whew that escalated quickly. Sorry you had issues. Hopefully the swap goes easy!


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Old 10-30-2016, 09:02 PM   #10 (permalink)
 
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Originally Posted by usaf2006 View Post
Whew that escalated quickly. Sorry you had issues. Hopefully the swap goes easy!
Yeah, truck still running when I planned to do this, I guess I should have started it 60K ago or so. I just couldn't take looking at the truck sit there for a year while I drove a purple van with pinkish interior lol. Not kidding. This way I'll be back in truck for the winter

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