tired of tranys going out! 1982 Blazer, t-350 trans - 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 11-23-2010, 05:05 PM
Registered User
 
Join Date: Nov 2010
Location: washington
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
i have a k5 thats going threw transmissions

I have a 82' K5 blazer w/ built 400small block and short shaft 350 turbo. I keep cracking the bell housing. and burning belts in the trany, we have gone through 3 tranys in 5 months.........what can be causing this and how do i prevent it??????????? tired of boxing with this.

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-23-2010, 05:11 PM
Registered User
 
Join Date: Nov 2010
Location: washington
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
tired of tranys going out! 1982 Blazer, t-350 trans

I have a 82' K5 blazer w/ built 400small block and short shaft 350 turbo. I keep cracking the bell housing. and burning belts in the trany, we have gone through 3 tranys in 5 months.........what can be causing this and how do i prevent it??????????? tired of boxing with this
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-23-2010, 05:32 PM
Registered User
 
Last photo:
Join Date: Nov 2010
Location: Seasonally Frozen Wastelands
Posts: 19
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by K5hillbilly
I have a 82' K5 blazer w/ built 400small block and short shaft 350 turbo. I keep cracking the bell housing.
Motor mounts in decent condition?

Frame-to-body mounts in good condition?
SOMETHING is causing too much stress on the bellhousing; and I'm guessing it has to do with frame flex. Unsupported weight (the transfer case, for example) could be an issue too.

Quote:
Originally Posted by K5hillbilly
and burning belts in the trany, we have gone through 3 tranys in 5 months.........what can be causing this and how do i prevent it??????????? tired of boxing with this.
Belts??? Do you mean "Bands"?

1. Is the transmission built right to begin with? I don't do TH 350s, but the band adjustment on a 400 involves select-length engagement pins. Wrong pin = wrong band adjustment. I bet the 350 has a similar adjustment.

2. Trans pressures correct?

3. Trans fluid cool enough? Do you know what the fluid temp is?

4. Do you operate the trans in "Drive" or do you manually shift? How do you drive the vehicle?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-23-2010, 05:51 PM
eloc431962's Avatar
Evil Wicked Mean And Nasty
 
Last wiki edit: Pilot bearing and bushings
Last journal entry: roof repair
Last photo:
Join Date: Nov 2008
Location: back in the garage.
Posts: 13,761
Wiki Edits: 37

Thanks: 50
Thanked 28 Times in 24 Posts
Quote:
Originally Posted by K5hillbilly
I have a 82' K5 blazer w/ built 400small block and short shaft 350 turbo. I keep cracking the bell housing. and burning belts in the trany, we have gone through 3 tranys in 5 months.........what can be causing this and how do i prevent it??????????? tired of boxing with this
Ok here's the deal from my experience anyway, Are the motor mounts in good shape and trans mount ? You have some serious flex somewhere which is probably a bad mount somewhere check the trans mount and motor mounts also, Your getting too much stress on the bell-housing, and I'm willing to bet it has to do with frame flex/ engine and trans flex. Or both JMO
Where at on the bell-housing did it crack at exactly? I had one go from one side to the other had like a couple inches holding it at the starter side of the bell. Does it still have the 4x4 equipment in it ?


Cole
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-23-2010, 06:04 PM
Member
 
Last wiki edit: Calculating tire size
Last journal entry: Changes...
Last photo:
Join Date: Oct 2003
Location: Montreal
Age: 29
Posts: 532
Wiki Edits: 2

Thanks: 0
Thanked 2 Times in 2 Posts
Also check the mating surface between engine and trans is smooth and flat (I scrape the paint off too). And the 2 dowel pins need to be there.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 11-23-2010, 06:34 PM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,658
Wiki Edits: 0

Thanks: 15
Thanked 60 Times in 57 Posts
Even so your not going to believe me if I tell you this. Check the dowel pins in the block. If they are not present, or pushed in too far, the result is cracked bellhousings. If they are out far enough and all looks okay then it`s binded, likely due to frame damage sometime in the vehicles life. I only seen 1 vehicle in my time that ate transmissions and it kept doing what yours is doing. It was a 79 camaro, the car looked absolutely mint but it had been wrecked and very well repaired, but not correctly which kept the transmission in a bind.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 11-23-2010, 06:40 PM
eloc431962's Avatar
Evil Wicked Mean And Nasty
 
Last wiki edit: Pilot bearing and bushings
Last journal entry: roof repair
Last photo:
Join Date: Nov 2008
Location: back in the garage.
Posts: 13,761
Wiki Edits: 37

Thanks: 50
Thanked 28 Times in 24 Posts
Quote:
Originally Posted by DoubleVision
Even so your not going to believe me if I tell you this. Check the dowel pins in the block. If they are not present, or pushed in too far, the result is cracked bellhousings. If they are out far enough and all looks okay then it`s binded, likely due to frame damage sometime in the vehicles life. I only seen 1 vehicle in my time that ate transmissions and it kept doing what yours is doing. It was a 79 camaro, the car looked absolutely mint but it had been wrecked and very well repaired, but not correctly which kept the transmission in a bind.
Hummmm!!!!!!!!!!! There are to post on the same thing from the same person.
Anyway your right DV i have seen this also with the dowel pins. and the wreck yep that's a given also if twisted bad enough it can do some strange things.JMO



Cole
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 11-23-2010, 06:43 PM
Registered User
 
Join Date: Nov 2010
Location: washington
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
grrrr tranys!

the fiest one cracked at the rear casing, The 2nd 350turbo cracked around the bell housing all the way around. Then the third one is slipping, I lost drive gear and had to shift manualy from
1st into 2nd then drive, then 1st&2nd went out and reverse, It was acking like the trany fluid was low, but I checked that and changed out the fliter and its not the fluid or filter..............
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 11-23-2010, 06:48 PM
eloc431962's Avatar
Evil Wicked Mean And Nasty
 
Last wiki edit: Pilot bearing and bushings
Last journal entry: roof repair
Last photo:
Join Date: Nov 2008
Location: back in the garage.
Posts: 13,761
Wiki Edits: 37

Thanks: 50
Thanked 28 Times in 24 Posts
You really need to check all the mounts engine and trans and see if there is one bad causing to much flex. And make sure the dowel pins are i place and doing their job as well. The cracking is from to much flex or some frame twist or maybe some damage from a wreck i don't know the history of it how long have you had it? You never said is it still 4x4 and what do you do with it play or DD and play ?


Cole
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 11-23-2010, 06:52 PM
mud.man.rj's Avatar
Registered User
 
Last photo:
Join Date: Oct 2010
Location: canada
Posts: 390
Wiki Edits: 0

Thanks: 0
Thanked 39 Times in 39 Posts
trans cracking

Make sure your spacers on the transfer case crossmember are between the frame and mount not under the mount or above the frame. They are on one side of the mount to frame only, I think passenger side.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 11-23-2010, 06:56 PM
Registered User
 
Join Date: Nov 2010
Location: washington
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
yes all 4x4 is in.......

yes the 4x4 is in the truck
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 11-23-2010, 06:58 PM
eloc431962's Avatar
Evil Wicked Mean And Nasty
 
Last wiki edit: Pilot bearing and bushings
Last journal entry: roof repair
Last photo:
Join Date: Nov 2008
Location: back in the garage.
Posts: 13,761
Wiki Edits: 37

Thanks: 50
Thanked 28 Times in 24 Posts
Quote:
Originally Posted by K5hillbilly
yes the 4x4 is in the truck
Check your other post people have post on it also.
I would be checking all the mounts.JMO

Cole
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 11-23-2010, 08:01 PM
Registered User
 
Join Date: Nov 2010
Location: washington
Posts: 7
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
trany........

I realy apprieciate all the help guys, I need it......... the truck has a 6' lift and there r spacers 4 the lift , all the mounts r good, it has to be the flex but where is it coming from.....PS im new to this wonderfull site so bare with me
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 11-23-2010, 10:12 PM
DENCOUCH's Avatar
Registered User
 
Last photo:
Join Date: Nov 2007
Location: Great Pacific Northwest
Age: 67
Posts: 409
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by K5hillbilly
I realy apprieciate all the help guys, I need it......... the truck has a 6' lift and there r spacers 4 the lift , all the mounts r good, it has to be the flex but where is it coming from.....PS im new to this wonderfull site so bare with me
Dude! 6' of lift?
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 11-24-2010, 02:11 PM
bigdog7373's Avatar
Of course it's fast
 
Last photo:
Join Date: May 2010
Location: florida
Posts: 2,670
Wiki Edits: 0

Thanks: 13
Thanked 49 Times in 49 Posts
Aha. So you got a big truck with a big engine, big lift and big tires and the tranny hasn't been upgraded to handle the extra stress. I also agree on the dowel pins too.
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:
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
Centrifugal advance DENCOUCH Engine 7 05-07-2010 07:39 PM
trans from 1500 to s10 blazer thebreeze68 Transmission - Rearend 1 01-02-2010 04:59 PM
Turbo 350 Trans Shift/Slip issues CincyMuscle Transmission - Rearend 5 09-30-2009 08:17 PM
We pulled our 350 and trans for our beetle project - pics zbhover Engine 3 10-06-2008 04:40 AM
White Smoke, I'm at a loss 58Chev Engine 31 09-25-2006 05:29 PM


All times are GMT -6. The time now is 02:42 PM.


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.