Making sure you keep the cooling system in check is the most important thing with the 1fz-fe, it is just as reliable as the 3fe AS LONG AS YOU KEEP IT COOLING RIGHT.
I would suggest installing the Koso Temp Guage
(DIY Link Here) because the stock gauge is useless and will only tell you its hot when it's too late. The koso gauge is cheap and gives you real-time temps from the return pipe to the radiator. A well-maintained cooling system shouldn't see above 200 degrees in regular driving (this obviously depends on load, exterior temp, AC usage etc but even then over 200 is a sign of something not working right).
The mechanical fan is the BEST fan you can get, a well-maintained one will outperform 99% of the electric ones available. Make sure your shroud is intact. The black hub fan clutch is the best (came stock on the 93-94) however if you don't have that then you can get an Aisin blue clutch from rock auto, do not use any other fan clutch (parts store specials are an absolute no-no).
The OEM hubs are serviceable so don't toss the black one if you have it just because it's old. There is a thread
HERE that is a step by step on how to upgrade (same process for servicing) a new blue fan clutch, it's the same process for the black clutch.
Last Major tidbits I'd like to pass along:
- YOU NEED TO DOWNLOAD YOUR FACTORY SERVICE MANUAL RIGHT NOW and save a copy to your computer, your google drive, your wifes google drive, your kid's computer, send it to your secure server in Switzerland, etc etc etc. It's your bible, basically a step-by-step cookbook for your rig. Links below
- YOUR FSM HERE (1994 FZJ80 FSM)
- Your Transmission FSM HERE (A442)
- Transmission Supplemental FSM HERE (A442)
- The stock Toyota coolant is RED coolant, however, many rigs have been switched to green over the years. Either is FINE as long as you don't mix them.
- Don't waste money on aftermarket non-toyota (OEM) replacement parts like bushings, motor mounts, etc etc. They won't work and you'll waste money, sounds crazy but that's the reality. There are plenty of vendors here that will hook you up with at-cost OEM parts.
- Lastly, spend a couple of hours digging through this post; 80-series FAQ for General Info, Modification and Repairs
- Don't keep a list of what you spend on your rig, god forbid your wife finds it.... ask me how I know
welcome to the addiction