So the engine came out and went back onto the stand wednesday. Spent thursday & friday disassembling it to see just what went wrong. Heres what i found.
I had pulled the oil drain plug the night before, so when i got home from work i could immediately drop the pan. This is what i found:
So we're not off to a good start. So i moved to the top end to remove the heads. I bought a cheap ($10) parts organizer from Harbor Freight and used it to organize the rockers + hardware, lifters and pushrods so i could keep track of where they came from
I found 3 pushrods with chips in the top. Coincidentally all exhaust valves
I can see slight scoring in the bores:
Rolled over, lets inspect the bottom end:
If its not clear in the pic, the oil pickup is absolutely covered in metal, to the point of it seeming like it was dipped in nevr-seize
Pulled the #2 crank bearing cap, and well....
Scored to all hell, including the crank journal.
Pulled a rod bearing, and same thing:
This is typical of all rod bearings:
Crank is out. All bearings wiped, all journals scored. I hope i can salvage the crank.
Starting pulling lifters. #5 intake lifter is wrecked:
#7 intake lifter also damaged, altho not nearly as bad:
Cam lobe wiped out:
All piston skirts showing wear:
All cylinder bores scored:
And the bare block, waiting for its return trip to the machine shop next week:
You know what they say....any job worth doing, is worth doing twice.
So i have two oil pressure sensors in the rear port on the block. The OEM sending unit, and the aftermarket one from NVU. So i removed the OEM one and hooked up a mechanical gauge there. Pulled the distributor and ran the oil pump via the driveshaft, and i see ~40 PSI on both the mechanical & electrical gauge, so that confirms i have oil pressure when cold, and confirms my electrical gauge works properly. Drained the oil, pulled the filter, cut it open, and i dont see any bearing material. Brought the filter over to the machine shop since hes only about 5 minutes away and he agrees, no bearing material in the filter.
Today i changed the oil out for Rotella 15W40 (this time i put in 7 quarts instead of 6), ran the oil pump via the driveshaft and got ~48psi, which id expect from the heavier oil. Put the engine back together and fired it up. Ran it at 2k rpms for 4 minutes, and in that time it dropped to about 5-6psi so i shut it down. Waited 5 minutes, fired it back up and no oil pressure at idle. Shut it off, waited another 10 minutes, and fired it up again. Barely any increase in oil pressure. So i dont think its a problem with oil draining back down to the pan.
At this point i cant see anything else i can do, without pulling the motor back out.
I have been hesitant to update this, because reasons.
It took me 4 weeks to get to this point. I have been working on the engine 20+ hours a week, every week since my last update a month ago. Timing cover came back off, bought a different set of fuel injectors, and a second wideband O2 sensor as i probably ruined mine. Passenger header has been off 3 times, still leaks. Struggled with the tune. Still not right, but im going to have to replace the headers to get it right since i cant get the one to stop leaking.
The engine is still not 'broken in'. I am dropping to about 5-6 PSI on oil pressure (at 2k rpms) by the time the thermostat opens. Idle might be close to zero. I dont know whats wrong. Im going to try to get a mechanical gauge on it tomorrow to make sure. I expect the motor is going to be coming back out. So the frustration level is high.
We're getting close.
In between multiple storms, ive checked off about 75% of everything on that list. I finished everything for the trans. Kickdown, shifter, NSS, and vent. Just needs ATF now.
Starter and headers are installed now:
The stock 460 intake has horns in it, to reduce airflow while increasing velocity. Well, with everything ive done to the motor i need the additional air volume, so i removed them:
So with the headers in i installed the plugs & wires, coil, air filter, intake, pretty much everything that was left. Pretty sure the only things i have left to do, is add coolant and hook up the battery!
So today i finally sucked it up, and drug this out of the garage:
It royally sucked, but its in:
The doubler fought me every step of the way. So while its in, thats as far as i got. Still need to hook up the shifters, vent lines & speedo cable. Then i can put in the anti-wrap bar, both driveshafts, exhaust, and i have to run the wires for the wideband O2 sensor.
Be ready, cuz if all goes well, she'll be running next week!
Ok, so i got some more parts slapped back on. For starters, the steering box is back in, along with the p.steering pump, tensioner and idler pulley:
The York compressor is now back on the motor as well:
This i thought was worth noting. The 88-91 460 and the 92+ each have their own water pump pulley:
Its difficult to see in the photos, but the 92+ pulley has 1/8" more backspacing than the older pulley. It also has a different hole spacing, so it cant be interchanged with the older pulley, you have to run the pulley thats meant for its specific water pump.
But why is this relevant? Because i switched to the 92+ water pump, because i want to run the 92+ oil cooler. The 88-91 water pump has a 2" outlet, and the 92+ has a 1-7/8" outlet. I need the smaller ID outlet to fit the smaller lower radiator hoses for the later model (92+) water-to-oil cooler. it would also appear that the hole for the alternator tensioner is in a slightly different spot on the newer water pump, and the alt must be moved up on the later model accessory drive, because the tensioner bracket is different as well, and neither would work with my hybrid setup. So i modified the older one slightly, and then finally, the accessory drive was complete!
So at this point, i need to get back down to ground level. its time to install the transmission.
One new torque converter, from Broader Performance:
And then of course, the modified trans crossmember and new trans mount:
...and just like that, the transmission is officially back in its home once more!
So this is where i called it quits. Tomorrow ill hook up the trans cooler lines, shift linkage, NSS, vent line, vacuum for the modulator, and then i can move on to reinstalling the doubler! We're getting ever closer to firing this thing!
Man, the weather has not been cooperating! After about two weeks of rain, i spent a couple days mowing the jungle that was our yard. So now im finally caught back up, and progress can resume!
First up, theres now a tee in the OEM port, so i can run both the OEM & the NVU oil pressure senders:
New Ford Performance 47# injectors:
...and BAM! Injectors, fuel rail, wiring harness, and plenum installed!
New BBK twin 61mm throttle body:
This thing is a beast; way bigger than the OEM throttle body. Should flow a ton more air:
Also picked up this cool Felpro thermostat gasket, p/n 35041T. Supposed to solve the typical ford leaky t-stat housing issue. Its ~1/8" thick, and has an o-ring seal on both sides. Its a pretty nice piece, and looks like it should work well.
Progress! Now its starting to look like something!
Distributor all ready to go with new o-ring, cap, rotor & TFI module:
Engine at TDC & distributor installed. Plus a big win- the oil cooler is installed!
My frame notch was a huge success; Theres lot of room for the oil cooler, and it fit up in there easily with plenty of room to spare.
Super excited about this one, it clears like it was made that way by Ford!
From here on out, i think everything left to do is basic reassembly, so progress should speed up. My torque converter showed up yesterday too, which was the last item i need to finish reassembly. If all goes well, i might be able to fire the engine in about a week's time!
Despite the absurd weather, i have still succeeded in making some headway on the motor install.
First up, i am trying to finalize the Stinger PimpX install. As mentioned a little while ago, this thing is a 100% new ECU, based on the Megasquirt 3 technology. It is designed to work with the OEM harness & sensors, however, if you look closely, it has its own on-board MAP & BARO sensors.
It comes with a flash drive that includes a custom tune, and all sorts of tuning and programming software, as well as some PDFs detailing the whole install and tuning process. One thing i did, was to get the install manual PDF printed and bound by Staples. Its pretty cheap, and its nice having it as a reference since its ~35 pages long, and you need to reference it for initial setup & tuning.
I know its difficult to tell in the photo, but this page is going over our setup. You need to configure the ECU for your motor size & injection type. Sounds complicated, but theyve actually made it quite simple:
The ECU comes with a handful of jumpers you install on the board to set up if youre a V6, V8, batch or sequential EFI, Mass-Air or Speed Density. In my case, all i need is to install these 4 jumpers, and im good to go!
There is a TON of other things you can customize. Built in boost controllers, electric fan controller, you can configure your ignition type (including TFI, DIS, EDIS CDI box, etc), boost controller, nitrous controller, you can add cam & crank sensors, more O2 sensors, VSS (if not already equipped), there is a ton of customizing you can do. There is an extra port on the bottom of the ECU for adding in all the additional items the stock 87-95 ECU did not support.
included is some high quality silicone(?) tubing for the map sensor, and a USB cable for tuning
There is a USB port on the side, along with a SD slot for data logging. You need access to the port to load the tune (this will come later on in the install), and thanks to my relocated ECU i did not.
Back when i was getting ready to install the dash, i built this bracket to relocate the ECU:
It was a clever design, but it has to be modified. Thankfully i made it bolt-in! So i carefully removed it, and notched this side, to give me access to the USB port
So with that done i need to move on to some wiring mods. First things first, we need to add a wideband O2. The ECU will work with either the stock narrowband sensor or the wideband. If you use the wideband you gain a self-learning feature, which i definitely want. The install is simple, simply supply the +5 reference from the wideband controller directly to the signal wire that the original narrowband sensor goes to, and eliminate the stock O2 sensor. It seems simple enough, but i decided to do what i usually do, and make it more complicated!
So, this pic shows where i mounted my wideband controller; up high in some free space above the brake/ebrake pedals:
This means the +5v signal wire is right near where the factory ECU would be. So rather than cut into the stock harness, i decided to add a wire to the ECU extension cord i made. So lets take that back out!
Once opened back up, you can see the board offers not one but two seperate places to tie into each circuit, specifically for piggybacking for aftermarket ECUs and controllers. So all i did, was add a signal wire directly to the signal circuit for the stock O2 sensor, Pin 29:
All closed up and reinstalled, with the new signal wire hanging out and ready to be sleeved/run to the controller.
Once that was done i reinstalled the kick panel and tied that wire into my O2 signal. So now ive got both signals wired in, w/oo having to cut or modify the stock harness which is a big win in my book.
So now lets move under the hood. This is the wiring for the OEM MAP sensor + O2 sensor. Its a lot of wire, and we dont need it anymore.
I dont like the idea of simply cutting the wires off, so instead i cut them back, crimped new pins on the wires, and installed a 8-pin plug off a junk harness i had laying around
That looks considerably better! Almost like Ford made it that way.
So here's what we removed. Not discarded though; ive made it us as a companion harness that will plug back in and then put away in a box on the shelf. This way, if i ever want to add the stock sensors back in, i can, without having to do any additional modifications to the harness.
So this should complete the wiring mods for the PimpX, which means its time to finish the motor install!
So over the weekend i rolled the motor over and removed the pan, so i could install the new oil pump. I figured, if im spending all this coin on the motor, i might as well spend a little more, and get a good oil pump. Enter this unit, from Kaase Racing Engines:
This thing is a beast of an oil pump:
Complete redesign of the pump housing solves a cracking issue at the base of the OEM pumps, and it has dual oil ports to the rotor which helps with oil pressure at low RPMS; perfect for a trail rig.
So i put the new oil pan on, rolled it back over, installed the valve covers, and now its actually ready to go in.
Ive switched to the valve covers from the '95 motor. They are basically the same as my '88 valve covers, except the PCV valve screws into the passenger cover instead of using a grommet, which is a way better design.
Fast forward to Monday morning, when a buddy came over after work, and this happened:
She's in there! We had enough time to throw the trans in, but sadly my torque converter has not arrived yet.
Check this out though-
The frame notch is a success! There is a ton of available room for the oil cooler.
So im kind of bummed the torque converter isnt here yet, but i still have plenty of stuff i can do in the meantime. And it is supposed to rain most of the week, so whatever gets done, gets done.
Progress has been made!
First up, i got my air-fuel ratio gauge installed. I removed my a-pillar trim, removed the gauges, and removed my standalone harness for the gauges
Wiring harness dissected, and A/F gauge wiring added! Since its a gauge from NVU the wiring is basically the same. So i spliced in the power, ground & illumination wires, and only had to add a single wire to the harness- the +5v reference from the wideband controller. So overall a pretty easy job to do.
The Glowshift pod fits pretty good actually, but i did trim the top slightly where the windshield trim fits up against it, so it would fit a little tighter. Just some minor work with a razor knife, nothing major. I also took the time to lay out where the original trim screws go, so i could use the OEM screws to go thru both the pod & the pillar so no extra hardware to remove, and it actually looks pretty clean.
So, that's done, moving on. I got my new ECU from Stinger Performance, the PimpX!
It comes with a bunch of stuff, including a pretty in-depth 30-something page PDF, which i printed off for a reference since the wifi in my garage sucks. They actually want you to open it up, so here we go!
If youve ever been inside your ECM/PCM, then you know it looks nothing like this! This is a 100% custom-built ECU based off the Megasquirt III. It has a bunch of jumpers you need to install in the board to configure your unique setup. They intentionally dont install any just so you have to go thru it and do it yourself, which i actually kinda like since it forces you to set it up exactly for your vehicle. In my case, its only a couple jumpers since im still batch-fire, Speed Density, and running the stock TFI & ignition compnents. It supports a ton of stuff like sequential EFI, coil-on plug, boost switches for forced induction, narrow or wideband O2 sensor(s), it has its own electric fan controller....the list goes on. Im still reading thru the PDF, but im pretty sure i know how im going to configure mine.
It uses its own built-in MAP sensor so i have to delete the OEM one, and run the supplied vacuum line from the intake right to the ECU. Also, i am going to be using a wideband O2 in place of the factory narrowband (which gains me self-learning programming), which means i only needed 1 o2 bung in the exhaust, and i will have to tie the wideband controller's output into the oem signal wire from the original narrowband sensor. I think this is the only modification i need to make to the wiring harness tho, everything else should just work like stock. I still have more reading to do on this, so there will be more updates on this over the next couple weeks.
Heres the big one though:
The motor is done!
All ive got to do is install the motor mounts & flexplate, and sometime next week she's going back in the bronco!
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