A Sad Update
Alright guys, it's been a long bit since I've checked in, and since then a few things have happened.
I did a number of smaller trips this summer. Many weren't overly ambitious, like a traverse of the Pryor Mountains, and some more ambitious, like running Morrison Jeep Trail. I have a lot of photos that I was lazy about editing, but they're done now and I will write out reports for each trip. Lately though, I've been dealing with a problem....
A couple of years ago, I had the timing set refreshed on my truck. Lola had the timing chain whine, and I had a local shop set me up with a new timing set so I wouldn't have to worry about it down the road. Fast forward to fall of 2017. The engine was feeling a lot less fresh than it had before, and it had been irritating me for a while now. There were a few rattles and annoying tendencies that were random and intermittent, but nothing I could really put my finger on. I tried really hard to just chalk it up to the engine having over 175k on it, and not worry about it. It mostly worked, but then several weeks ago things changed.
I was driving downtown with a friend on our way home one night, when suddenly my engine was making a lot of noise. Like the sound of a rod bearing that had gone. It seemed to run fine for a bit. I shut the engine down, restarted, and had the same noise. A few seconds later, the engine sputtered and died. I coasted to a side street and parked. The engine would not restart for more than a second or two before sputtering and dying. I checked my Bluetooth OBDII reader and found out the truck was throwing a code for the bank 1 camshaft position sensor. I figured the sensor had died, as I heard numerous stories of the engine running like poo when the sensor died. I figured I was lucky because I had a spare sitting in the back of the truck. It was late and cold, so I called a friend who towed the truck back to his house where we left it for a couple of days before I could address the problem.
I came back a few days later with the requisite tools and attempted to pull the camshaft sensor. I managed to remove the bolt and pull the sensor out, but the plug connecting the sensor was absolutely mystifying to me. I have no idea why Nissan insists on putting strange plugs on everything, but this one is one of the weirdest I've ever seen. Anyway, I checked online and no one could properly describe how the damn thing worked. Eventually, after an hour of fighting with the thing, I broke it. So I threw up my hands, utilized my roadside assistance, and had the truck towed to my mechanic so he could fix it. I sourced a replacement plug and left it with him to fix.
A couple of days later, he calls me with the bad news. The bank 1 secondary timing chain has slipped, and now one of the cams is timed at 4*, while the other one is sitting pretty at 66*. Great. So the interference engine strikes! The valves in that head were bent to hell, and the pistons were scored from the valves. Damn it.
I spent a few days considering my options. I could theoretically swap out the head for another one or get mine fixed. Either way, I was looking down the barrel at serious money to get it back up and running again, and when I did, I'd still have an engine with 181k miles on it. So after doing some math and thinking about the best way to go about it, I decided it was time for a heart transplant. I went down to the local Nissan shop and inquired about an engine. He sourced one for me with 94k on it for a good price. Since the engine is going to be out, I'm using the opportunity to upgrade just a bit.
- I've had motor mounts sitting in my garage for a while. What better time to install them than when the engine is out?
- I have to remove the upper intake anyway, so it's a good opportunity to install an intake manifold spacer like I've always been wanting to.
- I have a bunch of brand new sensors sitting in boxes as spares. I can swap the new ones on to the new engine.
- The timing set on the new engine, from a 2008 Pathfinder, will be inspected and replaced if necessary.
The decision was made to do the work at my brother-in-law's shop, which is heated, has a lift, all the tools we'll need, and a bunch of space. So myself and a friend are currently in the middle of removing the original engine. We're mostly working around work and school schedules, so it's taken a lot of time. We're getting there though. I figure we'll get the engine wrestled out tonight or tomorrow. While the engine is out and the truck is on a lift, I'm going to take the opportunity to fix a few things. Some are preventative, some are necessary.
- I'm FINALLY going to install my replacement CV shafts.
- I've had a slight wobble in the wheel and some really minor wandering at highway speeds, so I'm replacing the front wheel bearings.
- I'm also installing polyurethane bushings to help with the steering. Probably needs them anyway, as the old bushings are pretty much shot.
- I've decided I want a sway bar back. Sure, the extra articulation is nice, but the benefits of a sway bar for a truck that sees most of it's time on the highway and dirt backroads outweigh the benefits for me.
- Because I'm reinstalling the sway bar, I'm going to use polyurethane bushings with a lot of grease to facilitate the sway bar's movement in twisty situations.
- I've also built extended sway bar end links out of heim joints from McMaster-Carr. Hopefully these will help with articulation and ride quality.
- I'm going to relocate my fusebox and winch grounds from the negative battery terminal. Though I haven't had major problems with this setup, I'm now better understanding how the electrical system works, and the having things grounded there is less than ideal.
- I have a redneck engineering fix for the squeaky rear leafs. It may work, it may not. I'll keep everyone informed.
- I'll be replacing a broken fog light on my ARB bumper.
- I'll be adding a large ground wire to the bed, which appears to have come ungrounded since we fixed the support crack.
- I'll also be adding an extra engine ground transmission/transfer case ground. Some people have said it helps, others are on the fence. I have a big length of 0 gauge wire, a battery terminal tool, and lots of time and extra space. So why not?
- Other minor fixes.
There's also a few other things I need to do while this project is going on.
- The alternator did not want to let go of the heavy cable attached to it, and broke when we horsed on it. So I have a very low mileage OEM 130 amp alternator coming in. I wanted the Rugged Rocks billet unit, but I can't justify the $500 cost when the 130A worked fine.
- Some parts on the new engine were damaged in shiiping. I need to swap the driver's side valve cover, a new coil pack, and the coolant crossover pipe onto the new engine.
So that's what I have ahead of me. At this point, we have everything except the top 4 bellhousing bolts, the torque converter bolts, and the motor mounts removed. Once the old engine is out, I can swap the parts over and get the new engine ready to install. While that's happening, I can also get the front end stuff sorted before moving on to reinstalling the new engine. I've been okay at taking pictures, trying to be better going forward. I'll keep everyone updated as we go.
I know it was a long post with no pictures, but that's where I'm at. Hopefully my next ones will be happier with more pictures.
Happy motoring everyone!