The Million Mile Engine... possible?

[madisonr34]

Can the 1FZ-FE be built/rebuilt to be a million mile engine with normal routine maintenance? What are your thoughts and ideas? I've seen some with over 300K original miles and still running strong.

 

[scottryana]

Yes, I don't see why it couldn't be. You could probably do the first rebuild at 250k miles without a bore, then at 500k bore .5mm over and then again at 750k go another .5mm over. Each time you rebuild you replace the serious wear parts. The block has shown to be quite hard wearing with some engines still showing cross hashes at 300k. The only thing holding most 1FZ's from being rebuilt to last 1 Million miles is money and time lol

 

[msapers]

Do you mean a million miles on one rebuild? A million highway miles, sure. A million high load, high rpm miles...probably not. It will last over 300k between rebuilds though.

 

[Landseer]

The biggest issue I see is that the you'd have to spend $200,000 on gas.

 

[95ToyCruiser]

I was at 200k when I did my rebuild (due to a thrown rod from the po starving it of oil) anyways, I reused the Pistons and rods ( 3 of them as the others were ruined when the motor scattered) I used 3 others and the crank from an old motor I had from my other 80 with 200k on it, so I basically have a motor with 200k at the time I rebuilt it with new gaskets, rings and bearings, I did a real quick hone job, and polished the crank, but everything was still in spec...

These things wear very well, and I would suspect that you'd have no problems getting to that mileage with 3 rebuilds, one of which would involve boring the cylinders...

I've put about 20k since my rebuild and it runs like a champ, good oil pressure, good power, although it uses some oil, as the head was untouched...

If gas stays reasonable, I'll give that million miles a shot, I use it as a dd and average 500 miles a week...

 

[Qball]

With my 150-250 miles per month average I'll never get to 1 million miles before I die. Hell at that rate my Bar's HG leak fix will also last forever, there goes my engine swap pipe dream hahaha!

 

[Zimbwanabe]

My last truck (and I didn't even know about mud, not a fraction of what I know about them now) had 360k on it when I sold it. All I ever did was routin maintenance, usually with Autozone parts, whatever oil was on sale, and basically treated it like and old truck, not the gem it really is, but I did do oil every 3, religiously, and fixed oil leaks etc when they came up. As I said360 on the clock, original HG, and it was running just fine, in fact I still see it around town. That over a third of a million and still going.

 

[Tedward]

I think I read Toyota stated the block is rated for 600,000 miles with two rebuilds. Not sure what that means. Got allmost 400,000 on the one I drive, so far....

 

[richardlillard1]

Toyota spec'd the engine for three full rebuilds, 4.6, 4.7 and 4.8. These were scheduled (by memory, might be off) for every 300,000 miles, if necessary. So if the engine needed it, could be done, if it didn't need it, rock on.

Given the way some of these engines have been pushed, abused, etc. while still rolling right along, we may never actually know the full potential of a 1FZ.

 

[Dave 2000]

Blimey, I think mine at 240,000 miles is barely run in!

I think the answer is not only in the maintenance but also in the environment, the miles that I do where I live are that 'miles', I never have to sit in traffic for example, so when the engine is running I am clocking miles, in the UK you might sit in traffic for an hour with the engine running but only clock a dozen miles.

regards

Dave

 

[LS1FJ40]

Doesn't @98 SNAKE EATER have over 400K on his? At the rate he puts miles on it he may be the first to get there.

 

[thatcabledude]

What I was just about say. I look forward to many more of his "rolling X00,000 miles" videos.

 

[OGBeno]

Toyota spec'd the engine for three full rebuilds, 4.6, 4.7 and 4.8. These were scheduled (by memory, might be off) for every 300,000 miles, if necessary. So if the engine needed it, could be done, if it didn't need it, rock on.

Given the way some of these engines have been pushed, abused, etc. while still rolling right along, we may never actually know the full potential of a 1FZ.

300,000 KM's.

Toyota works in metric, not miles.



The SAE white paper the Toyota engineers wrote confirms this.

 

[mechanist]

I'm over 300k and she purrs like a kitten. Original spark plug wires. I've got a slight coolant leak but I know where it is and stay on top of it. @beno did give me a price on a short block but I'll probably only go that route if something catastrophic happens. I love this straight 6.

 

[WarWagon]

Picked mine up with 385K on it.....baselined and besides trying to track down some coolant loss she's running pretty good.

I've put about 5K on it so I'm over the 390K mark now.

Saving money for a rebuild though; not knowing what the PO has or hasn't done I figure I need to be ready when it does come.

 

[bloc]

When I was in the market I found one with 476k on the chassis. Yes, this doesn't mean anything for this thread.. no idea of the history of the engine.. but it is entirely possible that was the original one from what I'm seeing on this forum.

 

[gnarlynick2072]

300,000 KM's.

Toyota works in metric, not miles.



The SAE white paper the Toyota engineers wrote confirms this.

Would love to see the SAE paper, Being a nerdy engineer and all...

 

[Howard705]

Who has the HIGHEST mileage on an 80???

Highest mileage 80s

Not read these yet.

Guy in town (non mud)had a beautiful '97 close to 400k.
Haven't seen him in over a year.
Said he still drives it to Texas and Mexico all the time.
He looked surprised when I asked about HG replacement-

 

[AJP]

Mine has 328k Km on it and just put back the head....after a bad HG..... cross hatching on cylinder walls was still clearly evident.

 

[Golgo13]

Just buy a 91/92 with a 3F-E!! Amirite, @LS1FJ40 ?