'90 models strentghts/weaknesses

[Tennessee80]

Original HG, 215,000 miles... Don't see many people PM'ing head gaskets, unless you are OCD PM head, which is, well, a lot of us!

cheers,

BTW, '94's with cloth seats definitely never break down...

 

[Tyler93]

Serious?! You mean the FZJ80's... (think '94 and above)...?

I've had a high of 19.7mpg, stock tires, no lift or armor and below 65 on the highway.
I now run 255/85's and have returned 18mpg corrected, still no lift but I do have sliders now.
This is certainly higher mpg's than most achieve but I am lighter, lower to the ground and I run higher tire pressures than the typical mudders on here.
The 1FZ has more head gasket failures than the 3FE more than likely due to dissimilar materials (iron block/aluminum head) and/or asbestos being banned as a headgasket material.
I have a 93 1fz with 240,000 miles

 

[mercfan]

Like this guy:
1996 Toyota Land Cruiser with Head Gasket issue

There was another one in Denver here about a week ago - but he never returned my phone call...

That's anther thing - the demand for these trucks must be pretty steady as most of the people I contact about CL ads do NOT call or email back... Weird...

 

[Tyler93]

No mods, needs a headgasket at the minimum, and wants $3500....I bought mine last year, running, with lockers for $2300....I'm glad I bought at the bottom of the recession.....good luck.

 

[93yotasr5]

so is the ifz in 94 and up models or 93 and up?

 

[mercfan]

so is the ifz in 94 and up models or 93 and up?

Others can confirm but I believe it's 93 and up to... 97?

 

[retrofive]

93-97 U.S. i believe.

 

[mercfan]

Valve adjustments!?

After doing some reading on this site I'm starting to realize that the 1FE engine ('91/92) requires a manual valve adjustment (every 15K) while the 1FZ '93 and higher may not (auto-adjustment?).... is that correct?

Thx -
James

 

[mercfan]

Valves...

Let me ask a question differently: do you have to adjust valves periodically in FJ80 '93 and higher?

 

[Trapper50cal]

Do they all take regular gas, or do the newer engines require premium fuel? Also, what kind of fuel economy on average could one expect from '92/3 vs '96/7?

James

I was told that since the 1fz-fe was a motor intended for use all over the world, it was designed to run well even on bad gas so regular is fine, although I switch between mid-grade and high-grade to keep things clean