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ZUKIWORLD Discussion Forum => Technical Discussion - Beginner / Repair => Topic started by: FinishTheGame on September 26, 2011, 05:45:54 PM

Title: High whizing sound...????
Post by: FinishTheGame on September 26, 2011, 05:45:54 PM
Hey guys, hopefully your not getting tired of see me ask a new question almost everyday.

This one is actually pretty serious, when i am in 3rd, 4th and 5th gear there is a very loud whining or whizing noise coming from underneath, when i let off the clutch it gets real loud just for a split second and then goes quiet.  I know it's obviously in the drivetrain.  It does NOT make this noise in 1st or 2nd gear and in 5th and 4th it is VERY LOUD.

I have filled both front and rear diffs up, as for the t case and tranny, i haven't been able to check those yet.  I will be buying the 10mm square head for my 3/8 drive ratchet soon and i will then check my tranny to make sure it has enough fluid in it.

I know that it could be a few different things and this is my first time owning one so im not real familiar with it yet.  Im thinking its either low gear oil in Tranny or bearings in tranny or possibly in t case other than that i can't think of anything else.
Title: Re: High whizing sound...????
Post by: wildgoody on September 26, 2011, 07:19:35 PM
Worn tailshaft bearings do that, especially with a suspension lift.

It could also be the transmission bearings, it can be fixed tho

Wild
Title: Re: High whizing sound...????
Post by: bentparts on September 26, 2011, 09:19:39 PM
Whatever you do, do it soon. The longer you wait the more damage will accrue. Ask me how I know. Really.
Title: Re: High whizing sound...????
Post by: FinishTheGame on September 26, 2011, 10:55:26 PM
I would like to hear your story.
Title: Re: High whizing sound...????
Post by: FinishTheGame on September 26, 2011, 11:09:31 PM
Worn tailshaft bearings do that, especially with a suspension lift.

It could also be the transmission bearings, it can be fixed tho

Wild

What would be a good starting spot?  What should i check?
Title: Re: High whizing sound...????
Post by: Zukipilot on September 27, 2011, 05:25:25 AM
Check the tail shaft bearings first. Usually, if it's the tranny bearings, the tranny will whine in every gear before whining in 4th (direct 1:1).

Zig
Title: Re: High whizing sound...????
Post by: FinishTheGame on September 27, 2011, 06:06:03 AM
Ok, so check the tailshaft first, is the tailshaft bearing where the rear driveshaft meets the t case???
Title: Re: High whizing sound...????
Post by: Drone637 on September 27, 2011, 01:17:45 PM
I highly recommend getting a FSM, sometimes it's nice to have a dead tree version in the shop.  You can also check out Suzukiinfo.com and Ack's Faq, as both have factory FSM scans available.
Title: Re: High whizing sound...????
Post by: bentparts on September 27, 2011, 03:53:54 PM
I would like to hear your story.

Check out the thread in Performance/Modify titled " Need help with Calmini gear install." Wild re-titled it " Can O Worms." So true. 
 Definitely get a manual, not the chiltons, a FACTORY one like the dealers used. You can find 'em on Ebay, sometimes pretty cheap.
Title: Re: High whizing sound...????
Post by: FinishTheGame on September 27, 2011, 08:28:17 PM
Wow, i just got done reading your thread Bentparts, and that's some crazy rebuild you had, i am deffinetly gonna take your advice, im gonna park my Sammi in our garage and put it up on stands and there it will sit until i get the funds to do the rebuild, i will start it up every week. In the meantime, like i mentioned i will be working on front third member.

At Evil cow, yes i will defenitly be invested in a FSM, Hawk Strictly Suzuki sells them.

Will update once i get started.
Check my diff thread every now and then for updates on that project.

Finish
Title: Re: High whizing sound...????
Post by: Kazang8272 on October 02, 2011, 04:05:59 PM
i think i may be having the same problem with the sound i found mine to be im guessing the rear trans bearing or seal maybe its loose and laying around rear yoke is that the seal or bearing
Title: Re: High whizing sound...????
Post by: FinishTheGame on October 03, 2011, 06:51:06 AM
If i had to guess, i would say that the noise is a bearing, because it sounds like something is siezed up and is turning dry.

Someone on here mentioned a tailshaft, but i asked where that was located and didn't get a response, i may check the t-case and see if its in there first.
Title: Re: High whizing sound...????
Post by: segermech on October 07, 2011, 08:33:47 AM
Hey guys, hopefully your not getting tired of see me ask a new question almost everyday.

This one is actually pretty serious, when i am in 3rd, 4th and 5th gear there is a very loud whining or whizing noise coming from underneath, when i let off the clutch it gets real loud just for a split second and then goes quiet.  I know it's obviously in the drivetrain.  It does NOT make this noise in 1st or 2nd gear and in 5th and 4th it is VERY LOUD.

I have filled both front and rear diffs up, as for the t case and tranny, i haven't been able to check those yet.  I will be buying the 10mm square head for my 3/8 drive ratchet soon and i will then check my tranny to make sure it has enough fluid in it.

I know that it could be a few different things and this is my first time owning one so im not real familiar with it yet.  Im thinking its either low gear oil in Tranny or bearings in tranny or possibly in t case other than that i can't think of anything else.

Does the noise change when you are on the gas or off the gas??  I have a whizzing noise when I'm on the gas but when I'm off it's silent.  I'm also wondering what it is.  I really only hear it at higher speeds but I think there all the time.  I have a 94 sammy with 4.57 gears.
Title: Re: High whizing sound...????
Post by: ffhammerhand on October 07, 2011, 08:01:53 PM
I also have a noise coming from underneath but it goes away when i push in the clutch or when i am in 4th gear,,, anybody have any ideas on that one???? when i push the clutch in to start it its fine but when i release the clutch even in neutral it whines. I know the throw out bearing comes to mine but im not sure
Title: Re: High whizing sound...????
Post by: rbparker on October 07, 2011, 09:02:12 PM
The whine that goes away when off the gas is coming from your differential. More than likely your rear one as probably in 2wd while hearing the noise. I ran into this EXACT problem with my rear diff. Grab the drive shaft near the u joint going into the suspected diff flange and SHAKE THE F($K out'a it. It shouldn't move AT ALL. Any movement is bad movement and you'll need to replace the bearing that make up the diff. The noise your hearing is the drive-shaft, bearing, and pinion gear moving around. If you wait until the bitter end like I did, you'll wear away the surface where the bearing presses onto the pinon shaft. The bearing will no longer be a pressed fit and it'll flop around. So you'll either replace the pinon and ring gear for 150 bucks (if their available) or rebuild the diff and hope it lasts another 10k.
Title: Re: High whizing sound...????
Post by: FinishTheGame on October 08, 2011, 05:45:10 PM
I think it would be awesome if it was the diff bearing, cause im in the process of working on my front diff and i will easily remember how to remove everything, i will check this out, im pretty sure if i have it in gear that there is no movement, but i will check again.  Does it matter if its in gear???
Title: Re: High whizing sound...????
Post by: rbparker on October 09, 2011, 10:49:41 AM
No it shouldn't matter if its in gear as along as the pressure from rolling weight is held by the e-brake.
The nut that holds the flange to the diff and seats the crush washer, its torc spec is 350ft lbs. After miles and miles of resistance (whining noises, stresses) the nut backs out. The more it backs out the more room for movement as the stress increases with more energy to back out a nut that is losing its grip. I was unable to find out how far my nut had backed out because the rear-end was on the work bench. I used a 350lb impact wrench which had no problems getting it off.

I purchased the Samurai with the rear-end condition. I have no idea how many total miles the problem occurred for before I bought it but I put 7000 miles on it before it ker-pooped. Luckily I was going 30 miles an hour and was able to prolong its death less than a mile to my house.
Title: Re: High whizing sound...????
Post by: FinishTheGame on October 09, 2011, 11:41:01 AM
No it shouldn't matter if its in gear as along as the pressure from rolling weight is held by the e-brake.

[/quote

I don't have an e-brake, because i don't have back brakes.
Title: Re: High whizing sound...????
Post by: FinishTheGame on October 09, 2011, 11:42:49 AM
I did check the driveshaft though, and i didn't really notice much movement at all.  I did however check the driveshaft from the tranny to the t-case and that did wiggle on the t-case side.

I also noticed alot of oil leaking from t case, so i am gonna start there, im planning on buying a fully rebuilt t case w/ lower gears and HD output shaft from TT.  Anyone had any experience with the rebuilt tranny and or t case?
Title: Re: High whizing sound...????
Post by: rbparker on October 09, 2011, 08:46:12 PM
I rebuilt both my transmission and t-case but to stock gears. I had no prior transmission or transfer case knowledge I just took my time and kept everything in a HIGHLY organized fashion, rebuilding the diff was much faster but required a bit more brains and tools.

Just to make sure... Its not a U joint that needs replaced?
While purchasing the pinion and ring gear from petroworks I was told that its best to leave the pinion and ring gears stock while making your gear adjustment in the t-case. I didn't commit anything to real memory with his numbers but I believe he had a t-case gear ratio that gave you 114% increase in low range with roughly an 8% loss in high range; this was with 30 inch tires compared to stock gears with the same tire. It was like 900 bucks complete. I've seen just the gears on eBay if you were on a budget.

Before you make a final decision with your t-case and diff issues I would take a long look at doing the Toyota axle swap.
Title: Re: High whizing sound...????
Post by: FinishTheGame on October 09, 2011, 10:34:15 PM


Before you make a final decision with your t-case and diff issues I would take a long look at doing the Toyota axle swap.

Honestly i don't have any intentions of an axle swap, this is my hunting vehicle plus around town, i really just want this to be reliable and capable of going offroad into those hard to reach places.