what could i have broke ( 700r4 ) - 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 01-13-2012, 06:07 PM
Project89's Avatar
Registered User
 
Last photo:
Join Date: Oct 2011
Location: utah
Posts: 936
Wiki Edits: 0

Thanks: 12
Thanked 30 Times in 27 Posts
what could i have broke ( 700r4 )

the issues are i only have 1st gear it will not upshift into any other gear(even manually shifted) and has no reverse.
when moving the car in first gear there is no engine braking at all,let off the gas an its liek the car is neutral


what happened was i was out cruising and i decided to test my antilag setup. so i was rolling down the street in second gear and pressed the antilag button and went wot.the antilag keeps the motor at 2500 rpms while adding fuel/retarding the gnition timming and droping spark to allow raw fuel into the turbo headers.it worked perfect boost jumped right up i let go of the button and the car jumped heard a loud band then the motor just free reved and bounced off the limiter.

so far ive checked the fluid, its not burnt up, shifter linkage is adjusted properly as is the tv cable.
no funny whining or noises from the transmissions.

i do plan on pulling the valve body down tommorow and taking a look

u guys have any ideas on things i can check with the trans in the car that might cause this before i yank it out and start tearing it down

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-13-2012, 06:39 PM
Registered User
 

Last journal entry: update
Last photo:
Join Date: Dec 2011
Location: over here
Posts: 216
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
No upshift was the reason I rebuilt the first trans I ever rebuilt. It was an '84 700R-4. First check is the governor gear, but if that's good, then the next check is the valves. If none are stuck, then you're probably facing a rebuild, same as I was. I used a B&M Super TransKit, which is no longer offered, and it worked out fine.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-13-2012, 06:40 PM
tnsmith10's Avatar
when will it rain???
 
Last photo:
Join Date: Jul 2003
Location: where its very dry and dusty
Age: 43
Posts: 1,297
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by Project89
the issues are i only have 1st gear it will not upshift into any other gear(even manually shifted) and has no reverse.
when moving the car in first gear there is no engine braking at all,let off the gas an its liek the car is neutral


what happened was i was out cruising and i decided to test my antilag setup. so i was rolling down the street in second gear and pressed the antilag button and went wot.the antilag keeps the motor at 2500 rpms while adding fuel/retarding the gnition timming and droping spark to allow raw fuel into the turbo headers.it worked perfect boost jumped right up i let go of the button and the car jumped heard a loud band then the motor just free reved and bounced off the limiter.

so far ive checked the fluid, its not burnt up, shifter linkage is adjusted properly as is the tv cable.
no funny whining or noises from the transmissions.

i do plan on pulling the valve body down tommorow and taking a look

u guys have any ideas on things i can check with the trans in the car that might cause this before i yank it out and start tearing it down

ok, unless you are in manual 1, the trans is not going to have engine braking.
also, unless you run up enough mph and theres no 2nd gear, you wont know if its got any other forward gears (suspecting broken/stripped sunshell typical symptoms for a bad shell is no reverse, 2nd or 4th).
with the loud bang, pulling the valve body is a waste of time as with a noise like that, i can assure you that the problem is not going to be valve body related. also, with that in mind, im willing to bet that the sunshell has failed.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-13-2012, 06:47 PM
Registered User
 

Last journal entry: update
Last photo:
Join Date: Dec 2011
Location: over here
Posts: 216
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I found NO broken parts in mine, beyond one chipped tooth on one gear. My sun shell was decent.
My first drive, I got to 5700 in first with the shifter in OD, then in D, then in 2, then in 1. With no alternative, I did a half-donut and returned to my driveway still in first.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-13-2012, 07:00 PM
Project89's Avatar
Registered User
 
Last photo:
Join Date: Oct 2011
Location: utah
Posts: 936
Wiki Edits: 0

Thanks: 12
Thanked 30 Times in 27 Posts
i can only move the car when the shifter is placed into 1
car will not move with shifter in 2,d,(od) or r

the trans was built with a tci master rebuild kit,beast sunshell,megaboost valve,vette servo,and shiftkit with manual/auto shifting fully auto in (od) manual shift in any other range
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 01-14-2012, 06:14 AM
tnsmith10's Avatar
when will it rain???
 
Last photo:
Join Date: Jul 2003
Location: where its very dry and dusty
Age: 43
Posts: 1,297
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by Project89
i can only move the car when the shifter is placed into 1
car will not move with shifter in 2,d,(od) or r

the trans was built with a tci master rebuild kit,beast sunshell,megaboost valve,vette servo,and shiftkit with manual/auto shifting fully auto in (od) manual shift in any other range
sounds like you may have also broke the forward sprag as well. a broken governor gear will not cause a loss of reverse.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 01-14-2012, 05:35 PM
Project89's Avatar
Registered User
 
Last photo:
Join Date: Oct 2011
Location: utah
Posts: 936
Wiki Edits: 0

Thanks: 12
Thanked 30 Times in 27 Posts
yup looks like the sprag, put the car up on stands wound the motor upo in first gear and shifted to 3rd gear and got nothing.if it was a broken sunshell it should have shifted to third gear and it didnt.


going to pull the trans check for carnage and see if its fixable and also if i can get a better sprag,if not ill more then likley be getting a th400 with trans brake or a 4l80 /w brake or might even go 2004r /w brake
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
and they wonder why Ca is broke tech69 Off-Topic 0 09-01-2011 12:22 AM
I think I broke my toe! CrashFarmer2 Off-Topic 9 03-18-2010 03:03 PM
700r4 pump broke twice in 2 days robertnesmith Transmission - Rearend 11 09-21-2008 06:58 PM
It's No Wonder That We're All Broke NAIRB Off-Topic 19 05-09-2006 07:07 PM
broke or not bigtim Engine 10 04-07-2006 10:42 PM


All times are GMT -6. The time now is 10:21 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.