Cruising down Rt 78

Caught up with some traffic shortly after that pic

​Theres got to be something ironic about a semi going off the road and crashing into a semi truck yard

​Anyways, moving right along:

Cruises nice at 70mph, but that whole 3200RPM thing is LOUD!  This thing need an OD gear.

Arriving at the shop...

...with 5 out of 6 collector bolts missing!

Thankfully the ball & socket stay fairly close to one another; i ended up driving a couple minutes down the road to Lowes to buy basically any hardware i could get to put them back together.

Strapping down...

...and here we go!

Seeing a truck this big on a dyno is both awesome and terrifying!

We made some pretty decent gains in the little bit of tuning he did:

Apparently the C6 and NP205 are bigger power hogs than i realized.  We ended about around 205HP and 415ft/lbs to the ground, which honestly i dont think is terrible.  It makes basically all its power off of idle, but with all the tuning her did, it just runs better overall.  Much better start, on/off idle, and just across the power band in general.  So overall, it was well worth the trip.

​Freeze plug installed

pulled the fuel lines and the fuel selector valve out

new fuel pump/filter housing

​...and mounted on the frame

Unfortunately that was about as far as i got yesterday.  Started planning out fuel lines but didnt get them installed.  Didnt know it was going to rain all day today!  So no chance of getting the diesel done in time for tomorrow.

So, instead of trying to work on it in the rain i pulled the bronco around, packed some parts & supplies in it and got it ready for a road trip to Carlisle tomorrow morning, for some proper dyno tuning!

Would have be cheaper on fuel to tow it, but oh well.  At least ill turn some heads on Rt 78 during rush hour tomorrow!

While waiting on parts i cleaned up the valley

Also decided that since i was already here, id remove and reseal the plenums

Im cleaning the transmission xmember and spotted a crack in the corner

​The new ceramic coated up-pipes from RiffRaff showed up, theyre pretty nice

​The Dorman collector arrived as well, doesnt look like a terrible piece

​It doesnt come with studs though so i had to extract the old ones and install them into the new collector

Friday morning i got the up-pipes in.  Saturday i got the collector in as well.

Getting that in was a nightmare.  Theres just no room to turn those little bolts.  If you look closely, i have the new fuel feed fittings installed in the head, which are 1/8 x -6 JIC fittings

This morning i put the trans xmember and mount back in, then moved on to the fuel system.

The fuel return fittings are at the front of the heads.  Passenger side the alternator needed to come out to get to the fitting...

...but on the driver side i had to move the a/c compressor and the accessory drive to get access to the fitting.

With those in, time to lay out the fuel lines.
Feed:

and return, with fuelab regulator

This is about as far as ive gotten.  Tomorrow im going to remove the old fuel lines coming down off the block to the frame, and hopefully get everything back to the selector valve done, we'll see.  Reminder to myself: I still need to put a freeze plug in the hole where the fuel pump used to go.

Up-pipes are out

What a fucking nightmare to do.  The little bolts in the collector didnt want to come loose, so i sawzalled the passenger pipe off at the collector.  Then still couldnt get it out and had to remove the dipstick tube.  After that one was out i grabbed the collector and it slid right off the driver tube!  Safe to say that side was probably leaking!

There is no room to remove the driver up-pipe.  Like, at all.  I ended up removing the trans xmember so i could lower the back of the motor down to get it down and out.  It was still a nightmare, i dont know how im going to get a bellowed one in there.

​Turns out my trans mount is fubar, so i guess its a good thing i dropped it.  New one on order

​Started working on extracting the bolts out of the collector.  Got to #4, and it cracked when it came out

​The collector is obsolete.  International has one, in Indiana, to the tune of ~$400 to get it plus shipping.  No one sells one without up-pipes which would be fine except i have the nice ceramic coated ones from RiffRaff arriving Wednesday.  Dont really have much of a choice so i ordered the Dorman one with pipes since i can get it by Thursday.

​Parts ordered, lets get this thing apart.

Unplugged the battery, removed the intake, and then the fuel bowl

​fuel pump out:

...and with a little bit of work the turbo is out too!

Next move is going to be to get those pesky up-pipes out of there....

​Thats good enough for now.  Think im going to soak the up-pipe hardware all weekend and pick back up on this on Monday.

Diesel is back in the driveway

​Ok, here goes.

Last night on my way to work it wasnt running right.  It started rough but then was cruising along just fine.  Made it halfway and the CEL came on and it cut power.  Still running smooth, but no power at all, couldnt maintain 55.  Finally i pulled over and it stalled and wouldnt restart.  Pulled the dispstick and it didnt look right, almost like it was low on oil.  Called a buddy who was on his way to work too, he swung by my place on his way and grabbed oil and my scanner.



Sat for maybe 5-6 minutes and it fired right up an ran, so i heaeed to the Wawa right down the road from work to fuel up, and waited for my bud to arrive.



Maybe 15 minutes later he shows up so we pull the stick and its definitely low.  Ended up taking 5 quarts to fill up.  This truck doesnt leak oil, so im not sure where it went.  Thinking injector orings, even though i did orings and injector cups back in March '20.

Anyways, drove the rest of the way to work just fine.  Drove it home in the stock tune and my buddy said he could still see it smoking a bit when i would hit the throttle, so now im thinking injector orings.
​Get home and pull the fuel filter, looks ok

​Take a peek down into the fuel bowl and, well......

​Pulled out the stem and fuel bowl heater

​Yup, its full of aluminum shrapnel

​So for now its parked in the driveway.  Going to assume the fuel pump is imploding.  Tired of putting replacement pumps in it, so i guess its time to do an electric fuel conversion & fuel bowl delete while im in there.  Of course this requires unbolting & moving the turbo over a little bit, which means its time to replace that suspect up-pipe.  This is going to hurt the wallet....

​Sigh....that didnt last long...

​Hit a deer last night on the freeway on my way to work. Cruise set at 70, no time to react. Knocked her over, and ran right over it. Coworkers said i splattered that deer all over the highway!
​Bumper is wrecked, lower valance dented and it pulls to the right.

valance dented

​No time to waste. Yanked bumper off. Good thing i made the wiring harness for the lights modular

​One of the LED foglight brackets broke; LED lightbar made it out unscathed

​Bumper adapter bracket bent:

Bumper mount bent:

​draglink bent up when the deer went under the truck

I used a winch to straighten the tierod

​...and a winch + torch to straighten the bumper bracket

​Took it for a test drive to the carwash to wash the blood and fur off the undercarriage (its everywhere- i even have fur on my motor mounts!) and it drives straight down the road again, so i dug out the original bumper and slapped it back on

​At least it drives straight and looks ok, but im going to need to fix that valance at some point.

​Been busy, never updated this.
New probe from Autometer

​swagelok threaded into the manifold

​...and done!

​Driven it a few times now, all is well :smokin:

Good thing too, because last week i started getting a thunk in the green bronco when i put it into gear. Long story short - bad ujoint in the double cardan

​Pulled the driveshaft out thursday and went over to the local driveline shop for parts, and then rebuilt it friday morning after work

​yep, id say its bad

new spicer non-greasables, plus a center ball kit from neapco

​no way i was replacing both ujoints, and not replacing the center ball

​...together...

...and done!

Got this one done just in time too......me & the little dude were hauling trailer loads of black walnuts out to the woods, and we had a breakdown

...little dude had to tow his bronco home!

​So i drove the wife's 90 to work the other day, and no CEL. Thinking about driving it in again tonight just to get another couple drive cycles on it before i call it fixed.

Moving on, im back to work on the F250. Gotta get the pyro probe issue resolved.
The steel fitting the probe is held in with. Its pretty crusty, and that little set screw is probably never coming out.

Got the brass reducer bushing off, and drilled out the set screw best i could. Its rotted enough that neither standard nor metric allen keys fit it properly anymore so not much choice there

Soaked it in penetrating oil for 5 days, then tried one of those magnetic induction heaters for removing crusty bolts and nuts; it works pretty good, but the fitting has become one with the probe. Ended up cracking the thin outer wall of the probe, so now i have to replace it. I guess i cant complain too much, it is ~15 years old at this point.

Moving into the interior

​Autometer GS Series is a stepper motor gauge, which means one fancy plug for everything instead of multiple for power, sensor, etc

Pretty sure i can just pop the pins out of the plug for the probe, so i dont have to cut & rewire the gauge harness

GS series uses temp probe p/n 5251, which doesnt include the fitting, which is kind of lame. However, the manifold fitting they sell for it is not that dumb one with set screw, its a swagelok 3/16 compression fitting.  Im not paying $59 for a compression fitting though, so i ordered one elsewhere, which i already have actually. So tomorrow im going to get the fitting installed in the manifold so whenever my new probe comes i can just slap it in and call this project done.

Dont have a DMM that can test Hz so i couldnt test MAP function. But i figured id still test for power and ground. Power was good, but my ground reading was off a bit

what the f-?
I was caught so off-guard by that i actually performed the test several times, with several meters!
Then i took everything apart and cleaned the ground. Much better:

​This was one of the main harness grounds, so now im wondering if this was the problem the whole time. Tomorrow im going to clean & reinstall the spark plugs, and temporarily bypass the vacuum cannister since i dont have a good spare. Then maybe ill take it for a drive and see if anything changes.