th 350 noises - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Transmission - Rearend
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-27-2010, 03:11 AM
velle307's Avatar
Registered User
 
Last photo:
Join Date: Dec 2009
Location: az
Posts: 62
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
th 350 noises

hello all,
i am new to this bulletin and hope that you all will help me to quiet this sound down.
i have a th 350 with new clutches (red b&m) stock valve body and i have,
a geary kind of sound only on acceleration, harder the accel louder the noise i don't think its a whine(kinda like noisy timing gears) more like a low steering fluid sound(not low) the noise is very annoying and would love to fix it.

please help, and thanks in advance!
Travis

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-27-2010, 03:26 AM
Registered User
 
Last photo:
Join Date: Apr 2010
Location: Hawaii
Posts: 373
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Before you tear into the trans, check your U-joints.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-27-2010, 03:33 AM
velle307's Avatar
Registered User
 
Last photo:
Join Date: Dec 2009
Location: az
Posts: 62
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i didn't even think of that thanks will do!
what should i be looking for burnt pins or no grease or what?
also i have the ujoint that has zerts in them does anyone know when enough is enough or is it like the ball joints when you see the grease start to come out? another thing i just installed new airbags in the back springs and have it lifted about an inch higher. but it does it with no air in them as well no change in sound
checked pinion angle and it is 4*trans and rear are level with each other

Travis

Last edited by velle307; 07-27-2010 at 03:38 AM.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-29-2010, 12:15 PM
velle307's Avatar
Registered User
 
Last photo:
Join Date: Dec 2009
Location: az
Posts: 62
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
so i checked the u joints good. and found out that its doing it at a stand still reving the motor like back of engine or maybe trans but i dont know, recently i have had a vent problem on my trans making my tranny fluid go all everywhere think this could be low fluid noise?(it moves) does anybody have a vid of different sounds the tranny or motor shouldnt make? it makes the sound at a certain point and not all the time on accel but when i keep the same speed it goes away

Thanks to all
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-29-2010, 12:28 PM
cobalt327's Avatar
WFO
 
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 59
Posts: 5,037
Wiki Edits: 1616

Thanks: 128
Thanked 597 Times in 546 Posts
It sounds to me to be related to the trans pump. Were the clearances all verified? Was anything done to the pump itself?

Often when fluid gets pushed out of the tube and vents, there is water contamination of the fluid.
From Raybestos:

“Water can be deadly when it finds its way into your transmission As you drive down the road, transmission temperatures quickly exceed 212 degrees F - water's boiling point, And when water boils and turns to steam, it expands rapidly... when an ounce of liquid water turns to steam, it can easily displace 2 quarts of transmission fluid. If that water happens to be trapped in the torque converter when it reaches its boiling point, the pressure it generates as it turns to steam can force transmission fluid out the vent or dipstick tube.”

BTW, water will also delaminate the paper clutch material from the steel of the friction clutches.

The hot fluid level is correct when the fluid is about 1/4" above the pan rail, according to Art Carr.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 09-29-2010, 12:34 PM
velle307's Avatar
Registered User
 
Last photo:
Join Date: Dec 2009
Location: az
Posts: 62
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
if there was any water in it would it make this noise and i havent had this problem anymore after i removed the gook and dobber nest around the vent tube i have a tranny cooler on this about how much will this help cooling just wondering and how can i tell how hot it is getting?

Thanks again
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 09-29-2010, 01:05 PM
Registered User
 
Join Date: Sep 2010
Location: Phoenix Az
Age: 31
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
You can usually assume the trans temp is close to engine coolant temps when using a stock cooler in the radiator, since both fluids are next to each other. Though thats not exact. You can get a temp gun and run it over the cooler and get an idea, or buy a gauge kit and tap into the trans.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 09-30-2010, 08:26 PM
randolphi's Avatar
Registered User
 
Join Date: Aug 2010
Location: South Central Texas
Posts: 46
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Just some ideas--

changing between reverse and drive, do you hear louder noise or same, I'm guessing rear shaft could have a little runout clearance, sometimes the filter makes noise, dont know why, some parking pawls make noises too, sun gears usually have a whine, with higher mileage,(car moving), the big no no is not using a converter support, when removing and installing the tranny. the cutouts that drive the pump, place a lot of weight on the pump.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 10-29-2010, 02:52 PM
velle307's Avatar
Registered User
 
Last photo:
Join Date: Dec 2009
Location: az
Posts: 62
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
in park and in gear makes noise only when revving up past 1500 and sounds like close to engine so could this be rear main seals or torque converter i have a 2800-3000 stall

thanks for all the help
Travis
Reply With Quote Quick reply to this message

Recent Transmission - Rearend posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Distributor Tuning and Theory - Part 1 Rick WI Engine 35 04-26-2011 12:38 AM
Port or Full time vacuum cool rockin daddy Engine 129 10-05-2010 03:00 PM
Cam/Lifter Question about Ramjet 350 Jake Harsha Engine 20 07-07-2010 06:22 AM
305 head on 350 savman1 Engine 4 10-15-2006 09:18 PM
348 or 350 delimma 62ImpalaSS Engine 12 05-17-2006 11:03 PM


All times are GMT -6. The time now is 03:21 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.