the 1HDFT in my (converted) diesel 80 died.
backstory
Purchased truck (11/2008)
truck was converted years and years ago by the infamous Raymond Fourie in Vancouver. Its a factory FZJ80 converted to a 1HDFT/h151. It was stock-ish when I bought it. I added OME, 255's on Toyota steelies, Labs rear bumper, Hannaquality sliders, DIY front bumper, african outback rack with columbus RTT, 3:1 low gears, overdrive high range, intercooler, G-Turbo grunter extreme.
This truck is my long distance explorer. I've been across most of the western states. Wheeled on Rubicon, Moab, Hole in the Rock, Death Valley. It's been to the end of Baja 8 times. I've put 150K miles on it since buying it. I wish I could say it's never let me down... BUT...
The timing belt incident (12/2013)
while changing the timing belt (honestly can't remember why), I forgot to tighten the camshaft timing belt nut. 50 miles later... The timing belt fell off, the cam stopped, the pistons hit the valves, and shattered all the rockers. Long sad story short, ended up with a new head.
The crankshaft incident (4/2015)
Exploring Utah... I noticed a really bad front main seal leak. Turned out, the harmonic balancers on 1HZ, 1HDT, 1HDFT, 1HDFTE go bad. They should be replaced around 150K miles. Mine was out of balance... and wobbled so bad it cracked and also ate the crank nose. I made it home, pulled the motor, and put in a new crankshaft (with new bearings).
The (current) Semi-seized Incident (2/2019)
While in Baja California Sur, the engine... stopped. It gave a tiny bit of warning (I think I might have heard an intermittent squeal) before it shuttered and stopped. I was able to almost re-started it... but then the second try... the engine basically seized. With fresh batteries, I can get it to turn about 1/2 a revolution. So, I towed it home.
So here we are... Engine is out, and I was able to get the head off. The cylinder walls look... ok. The crosshatching is mostly present. There is some streaking. What's interesting is the imprints of the valves on pistons 1, 3, 4, and 6
Picts are in order. Pistons 1-5
backstory
Purchased truck (11/2008)
truck was converted years and years ago by the infamous Raymond Fourie in Vancouver. Its a factory FZJ80 converted to a 1HDFT/h151. It was stock-ish when I bought it. I added OME, 255's on Toyota steelies, Labs rear bumper, Hannaquality sliders, DIY front bumper, african outback rack with columbus RTT, 3:1 low gears, overdrive high range, intercooler, G-Turbo grunter extreme.
This truck is my long distance explorer. I've been across most of the western states. Wheeled on Rubicon, Moab, Hole in the Rock, Death Valley. It's been to the end of Baja 8 times. I've put 150K miles on it since buying it. I wish I could say it's never let me down... BUT...
The timing belt incident (12/2013)
while changing the timing belt (honestly can't remember why), I forgot to tighten the camshaft timing belt nut. 50 miles later... The timing belt fell off, the cam stopped, the pistons hit the valves, and shattered all the rockers. Long sad story short, ended up with a new head.
The crankshaft incident (4/2015)
Exploring Utah... I noticed a really bad front main seal leak. Turned out, the harmonic balancers on 1HZ, 1HDT, 1HDFT, 1HDFTE go bad. They should be replaced around 150K miles. Mine was out of balance... and wobbled so bad it cracked and also ate the crank nose. I made it home, pulled the motor, and put in a new crankshaft (with new bearings).
The (current) Semi-seized Incident (2/2019)
While in Baja California Sur, the engine... stopped. It gave a tiny bit of warning (I think I might have heard an intermittent squeal) before it shuttered and stopped. I was able to almost re-started it... but then the second try... the engine basically seized. With fresh batteries, I can get it to turn about 1/2 a revolution. So, I towed it home.
So here we are... Engine is out, and I was able to get the head off. The cylinder walls look... ok. The crosshatching is mostly present. There is some streaking. What's interesting is the imprints of the valves on pistons 1, 3, 4, and 6
Picts are in order. Pistons 1-5