I’ve got one in my shop at the moment that’s got the same symptoms.
I installed an aftermarket coolant temp gauge. It tops out at about 195f on sustained hills.
I did the test for combustion gases in the coolant, and that came back negative.
I used a laser thermometer to check the rad and...
I know it’s really hard to see the back of the head, but could it be oil coming from the half moon plug thing at the back of the head, just below the valve cover? Then seeping down and travelling along the top edge of the block?
Yes, when you had the idler off you should have seen four holes on the plate on the engine. The two middle ones are for the two bolts, while the other two have pins in them. The one to the right (when looking at the engine) goes through the hole in the idler assembly. That one I think would...
I happen to have a 1993 in the shop, so I popped the timing cover off to take a peek, and the pin is there. So is the pin on the other side of the idler assembly, which goes in a hole in the timing plate, and rests against the side of the idler assembly. When I do the timing belt on it I'll be...
I posted this in arnott1t's belt failure thread as well...
In my first 1HD-T, I got it from Japan at 115,000km, and it had a sticker indicating a belt change just before 100,000km. So I did it again just before 200,000km. When I was lining up the marks there was a couple paint pen dabs that...
As has been said already, oil in the intake and boost controller hose can be coming from the crankcase vent hose which vents into the intake pre-turbo. The quick way to see if this is where the oil is coming from is to run the crankcase vent to atmosphere with a longer length of hose, and block...
Just to be clear, I'm neither Greg or Sheldon, but I know them well, and they're great guys to deal with on parts.
Lordco and KMS Tools carry POR15. You might have to ask around a bit at the auto parts stores.
I just got around to doing mine yesterday. They are the replacement ACLs that I put in about 140,000km ago. I use Rotella 15w40 mostly, and sometimes Chevron Delo 10w30. Since it says to use 10w30 on the sticker that Toyota saw fit to put on the air cleaner, I think I'm going to stick with...
That good to hear.
Based on a bunch of the previous info in this thread I was going to tell you about the saga I had with similar symptoms. It turned out in my case that my head gasket was bad, and was allowing very small amounts of combustion gases into the cooling system. The weird thing...
I've been running mine with a hose to the ground (zap-strapped to the sway bar, near the frame mount) for several years. I get the odd drop on the floor of the garage, where it is parked during the winter. In the summer its parked outside and I've never seen a drop on the driveway. I figure...
I second the rad for mud. And when you think you've hosed it all out, do it some more. A partially clogged rad (external clog - mud) ended up costing me a head gasket in the end...
Knuckle rebuild and wheel bearings is going to be important. I just did a knuckle rebuild job and there was...
I've been waiting for someone to take a set of the ACL bearings out after some miles. There was a BEB thread a while back (don't feel like finding it) where it was asked if they need to be swapped again with the ACLs or if that was the permanent fix. There was no definitive conclusion. I'm...
The IP is the injection pump, which is the only fuel pump on these, unless you add a pusher pump externally of the fuel tank.
The factory fuel filter bracket mounts fairly close to where the charcoal canister is. That mounting should work nicely.