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Can't imagine a recently installed bearing explode like that, maybe a non sealed one ahah. Look like it ran out of grease. When you tried to loose it, did you unbolt the pulley nut before trying to adjust tension?So, the shop is done with the truck. The engine is not blown, there are no metal shavings in the oil and all systems are go.
The culprit. The idler pulley bearing…
I must have installed it wrong when I replaced all the engine gaskets and seals. Or it just reached end of life and exploded.
The noise I heard was the progressive loosening of the bearing and the clattering of the pulley. Then when it exploded the little bearings bouncing around the engine bay was what I heard pulling away from the stop light. It’s a good news story, but I feel like I should have known, and solved it earlier. Funny enough that my hunch was correct and it was something to do with a bearing towards the front of the engine. I even trouble shot the pulley system but couldn’t loosen the idler pulley enough to take the belt off to see if the noise stopped when it wasn’t on. Oops.
Lesson learned!
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At least it was a $ fix and not a $$$$$ fix!!
Can't imagine a recently installed bearing explode like that, maybe a non sealed one ahah. Look like it ran out of grease. When you tried to loose it, did you unbolt the pulley nut before trying to adjust tension?
I'm so glad it is sorted for you and your engine still good for cruising the land![]()

Can we see what was broken on the free wheeling hubs? They are meant to come apart when rebuilding.Alright, the good, the bad, and the lucky.
Got my truck back from the shop.
Feel free to take my “Land Cruiser man card” away cause I got someone else to do the front knuckles.
But glad I did! They found some issues!!
So I got the truck rust coasted by Krown rust prevention again. Happy with its performance last year. No update there.
I had the shop do a full bolt check on the suspension after my hustle to Alaska and all the gravel roads I drove. As it turns out. Every single U bolt nut was apparently “finger tight”. YIKES.
Apparently these nuts aren’t torqued to spec unless you have the axle dropped completely and not resting on jack stands as it is currently a spring under axle. Oops. When I did my bolt check before the trip, apparently it was not as effective as it should have been.
Apparently I should be doing this annually to ensure the UBolts remain tight.
Problem 2, both the locking hives for the front were broken. Either I broke them when I took them off last, or they broke on the drive. I felt like the 4x4 was always working when I engaged the TC and locked the hubs, but the lads at the shop said they aren’t supposed to fall apart when taken off the truck. And mine did. Whoops. New hubs!
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Last but not least, the spindles were worn down and once again apparently 60’s and 80’s LCs are known for the longer mileage trucks having the bearing races from the front axles spinning on the spindle and causing a deterioration of the spindle surface. So new spindles!
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And last was a shocker, my drivers side front brakes were fresh and new, but the passenger pads were worn all the way down to the metal!!
Apparently one of the hard lines was crimped and so all the brake pressure went to the front right. I must have driven all the way to Alaska (or back) on one front brake. Who knows what caused this. Could have been anything from when we replaced the suspension, to a rock smacking it with all the off-road mileage I did in Alaska. Shocker non the less. So new rotors and pads!!
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Heat marks
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Expensive but very worthwhile trip to the shop. This would have taken me far longer than 3 days to solve, order parts, and get her back on the road.
Kudos to the folks at Vehicle Technique Outfitters in Bend Oregon.
Apparently the spring within the hubs were broken both sides. What dissapointed you about the AISIN replacements?Can we see what was broken on the free wheeling hubs? They are meant to come apart when rebuilding.
I was disappointed with the AISIN replacements - the originals are a better design. I would not replace them unless necessary.
All the suspension should be torqued when under compression from the vehicle's mass. But I can't see what the difference is between sitting on axle stands or being on its wheels. The axle is unsprung weight. Ask them to explain it to you![]()