Tell me this isn't "fatal"

[Eric VerValin]

I found my noise... jacked the car up, ran it thru the gears to get it up to 30 in 3rd, then turned it off. I can stop the wheels but I still hear this spinning. Now what is it? Don't say the D word, or SHOboom.



I think I broke my rear motor mount, you can see it shake a little, and this is with no weight on the wheels. Maybe a pp bolt loose? I didn't look but the accy belts / crank stops when the key is off dosent it? Couldn't be the PP spinning.. and I only know of one thing that 'rolls' like that. But would rather have expert help on this one.


Edit: Photobucket being slow.. it'll be up shortly..

 

['94SHO]

You have a MTX,need to hear it... Audio clip?

 

[Eric VerValin]

Also, this didn't happen all at once, just kinda faded its way into the picture one day.

 

[Racer X]

Bad forward clutch ?

Not on an MTX.

While I've never heard what a blown diff pin sounds like... that definitely sound like it's in the gearbox somewhere. Sorry man.

 

[Bizzy]

Pressure plate strap or possibly a diff pin grinding the inside of the trans case. First thing for you to do is to put the car in gear (do not turn the car on) and spin the wheel by hand and see if you can narrow it down to where the noise is coming from. From there drain the fluid and look for shiny particles. If you see a lot of glitter then don't turn the car on again. It could be that it could be saved with a new diff if that's what the problem is, providing that it hasn't eaten through the case yet. Best not to turn it on again anyway until you find out exactly what the problem is. A strap can do a lot of damage to the wet side of the trans too.

Hope that helps some. If you need anything just let me know.

 

[Eric VerValin]

Awesome, yea it sounds internal for sure, I inspected it a little, and dont see any holes, and it wouldn't suprise me if I might have a strap loose, or a bolt that backed out. My friend didn't think it was necessary to loctite those, as we were in a hurry the day we slammed it all back together. They were torqued a few times just to check, a little over even I believe. But with a little mirror and a nice led pen light that I have, can I see what I need to? Like all those PP bolts? Say thru the hole where the starter goes? Or behind that plate in the rear ? Where is the best place to look?

And if its a loose bolt. can I support the motor with a hoist, unbolt the tranny and its mount, and the entire driver side of the car and slide the tranny out the wheel well to work on it?

If its, "serious" I think i'd rather just let you have it, as I have no welding equipment around to reinforce these sort of things. I should also have a parts car here shortly, and can trade ya anything you need, plus cash, or all cash, it dosent matter really.. Guess I get to drive the F-150 for a little while.. man I hope its a PP bolt..

 

[Bizzy]

If it's not a PP bolt we'll work something out.

With a pen light and mirror you might be able to see. I'd imagine you could see through where the starter goes. The plate is where I'd start.

Drain the fluid and see what you've got glitter wise. I think that'll be the "tell all" thing to do at this point.

 

[Shoaz]

If it's not a PP bolt we'll work something out.

With a pen light and mirror you might be able to see. I'd imagine you could see through where the starter goes. The plate is where I'd start.

Drain the fluid and see what you've got glitter wise. I think that'll be the "tell all" thing to do at this point.

x2

Take the starter out and turn the motor over by hand to inspect the PP bolts and straps. If they're all peachy then go from there...

 

[HotRodKid]

so im guessing since you did the video as a "running thru the gear video" instead a "i shut the car off with it still in neutral video" that this nose wouldn't happen if you simply started the car and shut it off with the wheels NOT spinning

so if it doesnt happen in nuetral after the car is shut off that would eliminate the

engine and all its acc's
the flywheel, clutch, pressure plate
the gears in the drivers side end of the tranny
input shaft
anything on the input shaft that spins even if the car is in neutral

that would leave anything between the first NON MOVING part (in neutral) all the wayto the wheels themselves

now mind you if it does the same in neutral, that makes everything i just said a waste, lol, but hopefully this helps in some way to narrow things down

 

[Eric VerValin]

Awesome.. lol see I just don't know enough of how the tranny's work, never seen one apart to understand how it ticks. I'll go fire it up right now, and let ya know.

Also, I can't get that damn fill plug loose, going to need a socket for it, my friend is bringing one from work, along with a new plug, and a brass tap for my new drain plug. Now can anyone tell me where to drill this at? Also, I'd like to get a look at the fluid before I add chunks of aluminum to it. If I'm careful I can get away with loosening, "that bolt" to drain some as long as I dont touch the shifter linkage? Anyway.. I'll update ya in a second.

 

[Eric VerValin]

Reved it up to about 2500 and killed it. No noise.. hmmmm What bearing is in the tranny there? Maybe bad inner cv joint? I dunno, I've been stumped a while ago. Glad you guys are around to help. Many many thanks again!

 

[hawkeye18]

Well, when you stopped the driver's side wheel, the pass. side wheel was still rotating... so it sure sounds like either a CV axle or a diff... sorry .

 

[AREA 91]

Not a good sound. I would say a pressure plate strap, diff pin, or CV shaft. You better find out, before it finds you.

 

[Eric VerValin]

Well could the diff be getting out of balance somehow, the way it slows down it sounds like there is a 'bad spot' and not the entire whatever it is.. lol ? When I rev it in neutral, and **** it I dont hear it. Only thing spinning then assuming if I stop the wheels, would be the diff then right? Does it spin freely to a stop? I just don't have enough knowledge to know whats spinning in there. Or what can freely spin I guess would be a better way to put that.

 

[HotRodKid]

Not a good sound. I would say a pressure plate strap, diff pin, or CV shaft. You better find out, before it finds you.

see erics post from ysterday at 9:22, noise only happens if the car is in gear with the tires spinning , meaning its not engine, clutch or anything else before primary gear shaft in the tranny (what ever its called)

 

[Eric VerValin]

So what is after that shaft? that could freely spin? Diff or the CV's right? Maybe a detonated TOB? I dunno hoping for something a little less painful than, "pull your tranny"

 

[Racer X]

The only things spinning are the final drive when the car is in neutral and the clutch is engaged, and the wheels are turning.

My money is on the differential, to be honest.

 

[Eric VerValin]

Well here is the update and one question. That bearing there by the S in supermotors... how many bearings are there in the tranny like that one? I did manage to crack that fill plug open, and my friend didnt stop out with his drill bit and my new drain plug, so I guess I'll go get one tommorow. But I did feel around what I could and didn't find any metal at all, just dark fluid. Also, there wasn't anything "pooling" near the fill hole, but then again, look at the angle of the car at the moment..



I dont think there would be anything near the hole would you? Not within 'pinky finger range' But what if, my fluid has just gotten to the point where its 'low'. I can't tell you when its been actually changed. It was "Supposed" to have been changed when I had a clutch job done years ago. But with some of the 'hints' and 'clues' I had of their work under the hood, I wouldn't put it past them not to have changed it. And if they didn't then god only knows how long its been. So could low fluid have smoked a bearing in there somewhere maybe? Or do I have a pin 1/2 way out? I'll know better tommorow and get some good pics of the fluid for you experts to diagnose. Thanks again guys.

 

[Bizzy]

With the fill plug out, lower the car until the wheels are on the ground and put more fluid in it, fill it until it overflows. The level of fluid should reach to just below the fill plug when it's full. With it jacked up it is possible that you wouldn't get a good feel on whether it's low or not, and yes, it is possible for it to make some nasty noises when it's low. Dark fluid is bad.

Also, there's a sticky thread in this section on ways to drain the fluid out of the MTX without having a drain plug installed. Total full capacity is 3.1 quarts.

 

[Eric VerValin]

Yea, I know, but I only have a hoover, no shop vac, and only some juice bottles, no gatorade.. lol ! I'll pop a hole in it, no big deal. I've seen a picture on here of a plug installed so I have a general idea of the area it should be in. Now that I have the fill plug freed up, I'll go ahead and get to draining this bad boy. I know I lost a little when I did my engine swap. When it was jarred around I probally lost a quarter to a 1/2 cup or so i'd say when we were trying to bolt it up. I pulled the other 1/2 shaft out to get the tranny to move easier. Anyway. I'll get it out, and let ya see what it looks like.

And who would have those plugs? I'm going to try tractor supply tommorow, they have a store next to the jobsite we're working at. I'm assuming some liquid sealant would be better than teflon tape? and should I use a washer. Hopefully this is all that the problem is. I swear it got louder when I jacked it up. maybe less fluid / more noise ? Hopefully I got it early enough.. Oh well. time will tell