place yer bets

[wdkingery]

Ok I got into a hurry and had to dump 5 gallons of unfiltered atf in the tank. Well, I think my pump is passing a kidney stone. Mtrans always told me never to run an unfiltered batch.
 It's like a wheel is about to fall off.. Kind of like a death wobble. You would never guess it's the IP. Hell maybe it's not, but I'm thinking it is. It didn't start till I backed the throttle return screw way down, cause the idle just won't go below 2000 rpms anymore. Then the death wobble @ top speed. Comes and goes. For a year now, 5th gear causes a herky jerky @ exactly 31 mph. Below or above is fine, but that specific frequency gives fits. It seems related to that. The motor makes strange sound on decel sometimes. I'm wondering if atf in large doses doesn't have enough lubrication. Will top off with motor oil in the morning, see if it helps.

On an unrelated note, Something fell down in the tranny peep hole and gave whatever has the TDC mark (flywheel or clutch idk) quite a few scars. Strange noise from hole now.

Long walk on cold night down major highway seems imminent this semester.

[8v-of-fury]

Long walk on cold night down major highway seems imminent this semester.

Get CAA/AAA now. lmao.

[wdkingery]

Get CAA/AAA now. lmao.

HAHA HAHA! My old man's got a Wagon and an F two fitty if need be. I'm hoping it passes. Still runs fine.

[ORCoaster]

The 31 mph in fifth bothers me. 
Why are you lugging the crap out of the engine like that? 
There are harmonic vibrations set up at certain speeds and the low thirty's is one of them, the other being in the upper 60's. 
I think you need to pull wheels and check bearings and then lug nuts for the ability to stay tight.
Does the car act the same in fourth gear when RPM's are a bit higher?  If so, check the tires for a blown belt. 
My son had one on his Dodge a while back and we would have never noticed it if it wasn't for some strange lighting on it one night. 

My bet is on wheels not being tight to the backs of the drums or discs.  There money down = 25 cents

[tyb525]

My rabbit did a little death wobble/ herky jerky when one of the rear wheels was about to fall off due to a bad bearing. I could wiggle the tire almost 1" back and forth, it felt really strange when driving..Glad I changed it, literally a mile longer I bet it would've fell off. It was the weirdest feeling.

So, driving at 1200rpm in 4th is not a good idea? I'm guilty of doing that once in awhile, I guess the torque gets the best of me. at 30 mph 3rd seems a little too high rpm for cruising, so I usually do 4th, on flat ground (no accelerating). Otherwise 3rd it is. Oh the joy of a 4 speed...

Oh, and I think ATF should have plenty of lubricity, but it's just so much thicker than diesel...

[R.O.R-2.0]

why on earth do you shift 5th gear SOO EARLY?!

you are LUGGING THE CRAP out of your car, even if you had an old crappy CG code 4spd trans..

your engine, and fuel economy would be MUCH happier if you shifted higher.. these engines dont even make peak power till 2500 rpm.. FWIW, you can run these engines ON THE GOVERNOR (stock governor) for the rest of its life, and not damage a single thing.. the stock governors are set soo low that you would never EVER hurt one of these things..

ive got a powerful engine, and i dont even shift that early. my engine is lugging its guts out @ 30mph in 5th gear..

i dont shift 5th gear until around 40mph most of the time..

i do have an ACN trans tho.. 3.67 final drive, and a .75 5th gear.. 2450rpm @ 60mph..

[8v-of-fury]

ive got a powerful engine,

i do have an ACN trans tho.. 3.67 final drive, and a .75 5th gear.. 2450rpm @ 60mph..

Same here on both accounts. ACN mated to an 11mm M-TDI, I can shift to 5th at 32-35 mph if I choose and accelerate from there as well.

[tyb525]

I don't normally shift into 4th that early, but once in a while I will cruise around 35 (maybe not as low as 30) in 4th if I am not accelerating or going up a hill. I don't shift into 4th until 40 or 45 either, not till 55-60 if I need to get going fast.

I've got a GP code trans so it's not as bad as the GC., but yeah, I know the difference between lugging the crap out of an engine and just cruising.

[ORCoaster]

I think he does 5th gear at snail speed just because he can.  Like tyb525 says it is the torque we drive not the HP.  We can accelerate from 35 in the upper gears and it may not hurt anything.  Not like a gasser that would not have good oil pressure in the lower end and tend to wear stuff out.  Our diesels don't rev high in the first place, unless you drive them that way.

I generally use the 10,20,35 and 45 speeds as upshift points in my FF trans Rabbit.

[8v-of-fury]

Like tyb525 says it is the torque we drive not the HP. 

They only make the torque 500 rpm lower than their gasser brethren

[wdkingery]

Hahaha sorry I'm late to the "here's when I shift party" Lol.
I hit 5th gear sometimes as early as 20 mph, depending on what my top speed is going to be. If the speed limit is only 25, I'm gonna be in 5th by 25. If I'm in a 45 mph zone, but traffic is only doing 20,I'm in 5th. Soon as traffic breaks loose, sorry for the people behind me but ill likely let her dig out of the hole in 5th. Maybe drop back to 4th and wind it on out if I am causing a disturbance.

But once I hit the highway, straight to the floor she goes. Speed limit half way home is 70 mph, and I can get away with 76-78 all day, so I just pin it down. Rarely have to lift up, as that's about all she'll do.

Anyway, back on topic: I dumped 2ish gallons of motor oil in the tank today before my 100 mile trip; totally solved the problem. Either my ip is addicted to motor oil, or a 70/30 atf/diesel mix does not provide enough lubrication over prolonged periods.
Best way to describe it would be like turning the key off between the power pulse of each cylinder. I believe whatever plunger is inside that pump was sticking, from lack of lube :-(

Motor oil fixed it. For now.

[8v-of-fury]

I have run on straight ATF, albeit clean stuff.. in a liter jug.. but still pure ATF none the less.

[lovinthedeez]

I'm wondering if atf in large doses doesn't have enough lubrication.

am i drunk in the morning or did i just read this right?  Unless your ip is any bigger than everyone else's, you should be fine.  I'd be more concerned about whatever you dropped in the tranny hole...(ewww)

[8v-of-fury]

bwahahahaha

Also,,, maybe it was because you had a thick ATF in there..? Viscosity varies up to like 30w

[R.O.R-2.0]

Like tyb525 says it is the torque we drive not the HP. 

They only make the torque 500 rpm lower than their gasser brethren

n/a's dont make torque...

what torque they do make, is @ 2500 revs..