1hdt into 1995 US Landcruiser

[mudgudgeon]

Clutch fork came in
View attachment 4065774


Also fan clutch i wasn't sure how nessary this was over a stock part and they are pretty expensive new. This is a used ebay one, still feels pretty stiff. I wanted to compare dimensions.View attachment 4065775View attachment 4065776View attachment 4065777


The cleaner one is the newer one dirty is one from a 1fzfe.
Fan mount and 4 bolt holes are the same. The hole for the center stud on the water pump is smaller on the 1hdt. Also the fan is about 5mm closer to the rad on the 1hdt.

So in a pinch you can use a fan clutch from 1fzfe on a 1hdt but not the other way as safely.

Anyone know if the fan itself is any different?

Also the shroud look to be swapable, any one know?

Also not sure if the motor ends up farther forward or back.

The 1hd-t fan clutch is tunable in the same way the blue hub is for 1fz-fe

 

[Outsane]

The 1hd-t fan clutch is tunable in the same way the blue hub is for 1fz-fe

I plan in running it stock, and if I have a cooling issue upgrade the fluid.

My understanding is that diesels usually run cooler.

Seem reasonable?

 

[gifu]

I plan in running it stock, and if I have a cooling issue upgrade the fluid.

My understanding is that diesels usually run cooler.

Seem reasonable?

diesel motors may idle cooler. But will generate more heat than gas under load. I would upgrade the clutch fluid. You have to add triple stacked hood risers.

 

[Outsane]

Will definitely watch the temps

 

[mudgudgeon]

My understanding is that diesels usually run cooler.

Missed this previously.

I think normal operating temp is similar to gas engines. Thermostat opening temp specs are similar.

I agree with above, a diesel can run cooler temps when not working hard.
Work it hard, and the increased combustion temps, and coolant temps will test your cooling system. If anything is sub-optimal, a diesel can still have overheating issues. There's loads of posts about people chasing the cause of overheating

 

[Outsane]

Yeah, I just plan on upgrading as needed.

It will have a 4row aluminum rad, and the clutch fan is easy enough to upgrade.

I measured and the 1fz clutch fan is slightly shorter then the 1hdt, so I can swap mine that has 30k fluid in it quickly. Then upgrade the 1hdt clutch fan.

Then add a top mount intercooler or FMIC if needed..

I was thinking that the temps should be find with a stock setup, I have a stock turbo and stock screw turning. I would think it would be stable all stock.

I will be fully ready to upgrade if needed and when needed.

 

[mudgudgeon]

I was thinking that the temps should be find with a stock setup, I have a stock turbo and stock screw turning. I would think it would be stable all stock.

Ignorance is bliss.

Theoretically yes, stock setup should be safe.

Toyota tuned these conservatively in the factory, but there's a lot of variation in the standard tune. Also, wear and tear on pump and injectors etc, means the current tune may not be what it was from the factory.

Toyota temperature gauges are vague AF, definitely wise to have a secondary temperature gauge or Engine Watchdog etc

 

[Outsane]

Ignorance is bliss.

Theoretically yes, stock setup should be safe.

Toyota tuned these conservatively in the factory, but there's a lot of variation in the standard tune. Also, wear and tear on pump and injectors etc, means the current tune may not be what it was from the factory.

Toyota temperature gauges are vague AF, definitely wise to have a secondary temperature gauge or Engine Watchdog etc

I plan on running a egt, boost and water temp gauges. Diesel pump is rebuilt along with injectors.

Everything is way over budget, so anything i can easily replace/upgrade in the future are left alone. Still buying parts for the swap build.

 

[mudgudgeon]

Heard that! Seems like you're doing a thorough job on it . . .



I miss my hdj80

 

[Mag71k5]

I plan in running it stock, and if I have a cooling issue upgrade the fluid.

My understanding is that diesels usually run cooler.

Seem reasonable?

Bit different, but my stock FTE, with a brand new radiator, FMIC, and manual transmission rarely reaches over 175F. Thermostat opens around 169F. I think the highest ive seen it was pulling Eisenhower tunnel, during the summer, going around 60-65ish. EGT's around 1100F. Hovered around 185-190. Im on 35's, stock gearing, and loaded down with camping gear.