Is your 80 buzzy? (1 Viewer)

[e9999]

Is your FZJ 80 buzzy?

OK, still trying to figure out if my engine buzziness is normal or not...
Seems like some other folks have the same buzz too.
By buzzy I mean it's not silky smooth as in you don't hear or feel it. I'm not talking being rough or missing either. Under load (not so much while coasting) there is a metallic buzz quality to the engine. Perhaps a high frequency vibration pegged to the engine rpm. Buzz as in an electric razor. Doesn't feel like something is wrong, just a certain "je ne sais quoi" that adds some spiciness to the beast...

So, is your 80 buzzy as well? (let's stick with FZJs so as not confuse things, eh!)


(oh, and if you never paid attention, check it before voting, OK!
Of course, the problem with that is that now I spend all my time in the truck trying to see if and when it buzzes.... distracting! This would be being hypotruckondriac?)

 

[IdahoDoug]

Sounds a *little* like you have some slight exhaust pipe interference somewhere. I've had several 80s and been in many more and have never heard a buzzy sound.

Doug

 

[T Y L E R]

You're loosin it bud

 

[e9999]

You're loosin it bud

hmmm.... that's actually a possibility! Will try with an aluminum foil hat on and see if I see feel the buzz...!

 

[Romer]

What grade of gas are you running? I was running mid grade with no issues. Then I went to Regular because a lot of folks here said they did the same. two months later, I bought gas at a Loaf'n'Jug. 5 miles later there was this vibration that was most prominant at idle and went away when in park. At half a tank I mixed it with mid grade and Red Line Fuel Cleaner, and 1 mile away the vibration stopped.

It will run regular gasoline, just seems to be picky about it. Remember I am at 5280 feet and the Octane for regular is 85.

Doesn't sound quite like your problem

 

[e9999]

regular 87 sea level PRK stuff

a tiny bit buzzy at idle, but most noticeable under load

 

[NorCalDoug]

Mine's not perfect, but I beat the crap out of it on occasion...
Mine's not a smooth as the wife's, but that could be due to a number of things...I don't sweat it too much though -- got too many other things to work on. She still runs great as far as I'm concerned.

 

[Romer]

I also have a buzzing that happens ocassionally. Its from the Tcase shift lever. When I put my hand on it, it goes away. It's not constant. Use to have the same problem in the 40. For other reasons, I replaced the T Case and it went away in the 40.

Probably still not your problem.

 

[RavenTai]

Hmm, hard to describe a sound or feel of what is normal in text, my engine does let you know it is there, there is a noise and a feel, especially at lower RPMS and idle. Not sure I would call it electric razor though.

Did not vote as no option fit.


And here is something to feed your hypochondria.

All those who have done the HG job (preemptive or failure) have described smother running afterwards.

 

[Safado]

Guarantee mine is the BUZZIEST around....the Holley Fuel pump just about drives the neighborhood animals away.

 

[2cruisers]

I'll answer this question and say hello to all as I'm new to the board. Also might mention I've been lurking for some time.

I have always been a heavy American made V8 driver. Years ago when I saw my first 80 series LC I knew I'd own one some day. Never wanted to purchase such a nice truck to trash, in the Florida mud,deep water and sand, as I had several other rigs to wheel in. Those of you who have wheeled here in the rainy season know what I'm talking about.

Anyway, last year I purchased a 96 LC with 45k, mint condition in and out. 50k now. No scratches,dents,rust and perfect interior. Maintenance records looked fair, so I went through the rig stem to stern. All fluids, belts, major tune-up,brakes, rotors, wheel bearings ( definetly as anal as many of you on maintenance issues) no offence. Everything looked to be in order, truck ran perfectly.

Two things I noticed quickly. If this rig Idled at 650RPM you could not feel it running. If I could see even what appeared to be a 25RPM fluctuation in either direction the rig had an irritating rumble. Similar to a worn out 63 chevy with a straight six. I still can't believe a vehicle that the PO paid 50k for could, in any envelope of operation display such crude characteristics. Additionally, I know it's not an 8 but in comparison acceleration is definetly buzzy and rough. I don't thiunk this is a case of hypochondria at all. My rig is running perfectly and on its best day can't compare with the smoothness of a V8.

Other than that it seems to be a good rig. Well, I'm really doing my best not to worry about head gaskets at 70k, rusty roof racks, rust at gate window, birfs at 60k, rotors, PHH, roof leaks and on and on and on and ............................................ Lots of great info here and I thank you guys in advance for all your future help. Good thing I bought the Cruiser before I found this site, might of bought a jeep!! Just kidding, I love my 80 even with all it's quirks

Matt

 

[ShottsUZJ100]

OK, still trying to figure out if my engine buzziness is normal or not...
Seems like some other folks have the same buzz too.
By buzzy I mean it's not silky smooth as in you don't hear or feel it. I'm not talking being rough or missing either. Under load (not so much while coasting) there is a metallic buzz quality to the engine. Perhaps a high frequency vibration pegged to the engine rpm. Buzz as in an electric razor. Doesn't feel like something is wrong, just a certain "je ne sais quoi" that adds some spiciness to the beast...

So, is your 80 buzzy as well? (let's stick with FZJs so as not confuse things, eh!)


(oh, and if you never paid attention, check it before voting, OK!
Of course, the problem with that is that now I spend all my time in the truck trying to see if and when it buzzes.... distracting! This would be being hypotruckondriac?)

I'll bet your 80 motor is normal? I'd guess (oh god, I hear the nasty emails coming already) that's because you also have a 100 (which is a whole different bird) you now hear "things" in the 80 you may not have noticed before?

I'm guessing this because the 80 owners I know that do not also have 100's say their 80's very quiet and smooth and whatever, and that I'm just talking out my Axx about the 100 being so much better.

Could this be the case with you? I'm sure you know what I mean........You get out of the 80 and into the 100 and just start the thing let alone drive it and it seems like a Rolls Royce or something. Opposite holds true. You drive the 100, then pop in the 80 and you notice all the noises, creaks, roughness of the engine, etc.

Whatcha think?

 

[e9999]

yes, of course that is very possible. The V8 is incredibly silky smooth, no doubt.

(Sooo, that would mean that the folks who think their engine is silky smooth just need some edjucationing, then? Or that those with buzzies have a better feel for mechanical devices? )

It may also be that I'm getting better at getting a feel for things... Or just hypotruckondriac (that would be your fault, yall...!)

This is all very subjective, but I am keen on figuring if this is normal, so that if the engine is developing something I can catch it early. I am reassured a bit now that it seems like the buzzies are winning over the silky smooths in the poll.

If it ends up that buzzies are very common, then it's probably a characteristic of the design (unless there would be a prevalent problem very common to these engines...)

 

[1000-oaks]

I don't own an 80 yet (looking for one), but one of the three I drove yesterday buzzed bad, I suspected it was the idler pully bearing. Even my GF noticed it when I fired it up.

 

[ShottsUZJ100]

I don't own an 80 yet (looking for one), but one of the three I drove yesterday buzzed bad, I suspected it was the idler pully bearing. Even my GF noticed it when I fired it up.

Those are notorious on the 80 and make for a loud idling noise. Simple fix though. When I fixed mine I thought I had a new truck.

 

[Docmallory]

Eric,

By "buzz" you mean a vibration rather than a noise, right?

Mine is very smooth at idle, but on acceleration (any speed), it has a very slight harshness that is felt in the accelerator, the steering wheel, and the seat. No noises.

 

[e9999]

Eric,

By "buzz" you mean a vibration rather than a noise, right?

Mine is very smooth at idle, but on acceleration (any speed), it has a very slight harshness that is felt in the accelerator, the steering wheel, and the seat. No noises.

that's it!

 

[seabeecruiser]

Mine has a slight buzzing from around 1400 rpm to about 1900 rpm. My initial guess is that it is a harmonic or something in the exhaust system. I also have an idler pulley that is starting to whine a little so I'll have to address that soon. Other than that, my 80 has pretty decent manners.

 

[BOUNDER]

Subaru

It's comparable to the sound of a Subaru - but much more refined and much smoother "clatter" or "chatter". Perfectly normal and perfectly Land Cruiser - music to my ears

 

[Hltoppr]

There was a Taos buzz....

-H-