I am curious as to the noise level in the cab and the vibration level while driving. I know you went to lengths to try and diminish both as best as possible. Did it work out the way you hoped? I'm working on a 55 F100 that will na a 4bt as well so I have thoroughly enjoyed your build thread. I currently have a 98 Dodge 12v 6bt and know how loud it is....
If you look back at post 17, this triangle, (corner) is not double walled,(insulated), on the left or right.
Exaust is 2.5 from fire wall, and wrapped.
Center of trans. hump is +- 18* from ambient temp, not unreasonable IMO.
A/C unit is 63 ish, IDK if it was on.
I will check what my is PSD, after a few miles.
EDIT. E pipe is 2" from firewall
E manifold is 1", so this is where the heat is coming from.
Went to northern NM, pulled a trailer with canoe ~1200 Lbs
Round trip 19.67 mpg. Elevation as high as 8400'
Drove <77 mph, except that one time, I had to pass 2-sets of three semis
GPS top speed 86 mph
It was late and cloudy, trucks had their lights on, as I was about to pull back in front,
I looked back, there was more than a haze of smoke.
They had to know it was a diesel, it's unlikely they knew they just got smoked by a 4-banger.
The only thing I have had to work on is the fan controller, I read they only last 2-years.
I added 2-relays, One to switch, other to A/C.
I have a 16" fan I will replace to an 18" as it does get hotter than I like *207 into a headwind @77mph
Only the upper 3/5ths of the radiator gets air flow, on the AD models.
Still, have high EGT's due to the tiny cummins aftercooler.
I should get it tuned, there is a dyno in my town.
Since the 4-banger's have extreme vibrations one of my horn brackets fatigued and broke off.
I now have a set of Hella horns I need to install with fatigue proof brackets, If that is even possible.
Good to hear all is going well. Have to remember that when you get into higher elevations the engine is running rich and EGT's will climb a bit. Just less oxygen in the air up there. I noticed when I traveled out west my Ford IDI diesels smoked a lot and cooling fan would kick on in those upper regions.
After a little more thought, I have had to replace to following
Lift pump, It was weeping a little
The 10si alternator has been worked on more than once.
It will charge a while, then stop, same with tach pickup.
I need to investigate the easiest replacement, for a newer alternator.
I think most of the guys consider the old 10si mostly a dead duck. Seems like the 12si is a bit more popular. If you wanted to get serious then consider the 21si, 22si, or 24si. Those three will need a different mount for sure. Those were the HD units found on medium duty trucks. The 22si was an update to the 21si and would be considered a better choice. The 24si is the newest of the group and has an internal cooling fan. Most of those will have a tach output signal.
I never knew what it was like without insulation, so there was no basis for a comparison.
But with common knowledge, it had to improve a large percentage.
Just the 1" on the floor alone ~30% ?
1/2" on the fire wall ~20% ?
top and back of cab ~ 10% ?
It was a lot of work, but I'm glad I did it.
Adding the lead to the engine areas was a waste of time.
The valve covers I made, fatigued and was falling apart from the vibrations.
What little I could put on the oil pan made no difference