This is a thread i'm creating to ask questions, and show you how to do a direct 3.9 -> 3.9 swap.
Sadly, this isn't a v6 to v8 swap which I would have loved to do. After searching for a month at local pick and pulls, classifieds, and shops I was unable to find a donor 5.9 engine and tranny, but I did find a used 3.9.
Background info: I have a 2002 Dakota 4x4 with the 3.9 and I killed the motor while being stupid mudding.
The donor engine I found came out of a 2000 Dakota RWD which I picked up for basically free. I went to look at it and the guy originally wanted $200 for it which I thought was a steal, but after looking at it turns out it was stored with no oil outside with only a tarp around it for a year. The engine has 150,000 kms according to the seller.
I was going to walk away and the guy said I could take it for free. He told me I was the only one who actually came to look at it and used the famous words "pay it forward". He was confident id get it running again so I figured why not. It isn't seized - I can crank it by hand, I pulled the valve covers and the valves werent rusty - a little gunky but I think thats normal. I pulled the spark plugs and the passenger side ones were a little rusty, but the driver side ones were fine. I imagine there to be a little rust on the cylinder walls but I'll find out for sure soon enough.
This is my first engine swap like the title says, and aside from basic stuff such as brakes, oil changes, and engine accessory replacements I'm pretty new, so this will definitely be a learning experience.
I ordered a complete engine gasket and seal kit including the timing cover gasket and new head bolts to tear down the engine, give it a proper inspection, and hopefully put it back together again. This by no means is going to be a project I will rush... I have transportation in the meantime and will mainly be working on it during the weekends, so I'll be constantly updating this thread.
Heres where I started, picked up the engine complete with a RWD 42RE tranny that lost reverse.... I'm not using the transmission btw.
When I got it off the truck, I proceeded to pull the transmission off of the engine which I had a HELL of a time doing. I made sure I removed all bolts and made sure nothing was catching. I could get the transmission separated from the engine about 2 inches and that was all I could get.
I ended up using a block and tackle to separate it the rest of the way which isn't wasn't easy. Now that the transmission is off I have 2 questions.
1) How do I go about removing the torque converter from the flex plate? Doesn't appear to be any bolts that I can see.
2) Is it normal for there to be this much rust? I don't understand why there would be this much in a sealed area.
Once the gasket kit arrives I will begin disassembling the engine.