heavy truck trans question - 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 08-24-2004, 09:53 AM
Member
 

Last journal entry: More propane stuff
Last photo:
Join Date: Jun 2003
Location: -
Posts: 277
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
heavy truck trans question

I have a manual transmission question.

I recently had a shop in phoenix rebuild an old clark 282 transmission for me. It is out of a f-800 ford. The trans now acts like there is no synchros in it when I downshift from 4th to 3rd. When it is sitting idling I can try to pull it into gear and can feel the synchros. Also when shifting from 2nd into 3rd the synchro usually works. I called the guy that built it and he told me that the synchros had to "break in". He suggested that I gently hold the lever against the synchro for 45 sec for a couple of times. I have tried this and still not right. Any one have any suggestions before I pull it out and send it back.

John

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-24-2004, 02:48 PM
M&M CUSTOM's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Transmission identification
Last journal entry: 1988 Suburban, the project continues.
Last photo:
Join Date: Mar 2003
Location: Northwest Pennsylvania.
Age: 42
Posts: 2,230
Wiki Edits: 9

Thanks: 0
Thanked 1 Time in 1 Post
I would think the synchros should "work" right from the start, and just get smoother from there.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-24-2004, 05:55 PM
Member
 

Last journal entry: More propane stuff
Last photo:
Join Date: Jun 2003
Location: -
Posts: 277
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thats what I thought. I have never heard of breaking in a synchro, but I have only redone a few manual transmissions and they were the smaller new process'.

Looks like I will be pulling the trans.

Has anyone else heard of having to break in a synchro?

John
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-24-2004, 11:46 PM
sbchevfreak's Avatar
Licenced Automotive Technician
 
Last photo:
Join Date: Feb 2004
Location: Land of big Easter eggs, Alberta
Age: 34
Posts: 1,604
Wiki Edits: 0

Thanks: 8
Thanked 9 Times in 9 Posts
nope.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 08-30-2004, 08:08 PM
Member
 

Last journal entry: More propane stuff
Last photo:
Join Date: Jun 2003
Location: -
Posts: 277
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I am getting the transmission back tomorrow. The shop put new synchros in it. Hope it works this time.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-31-2004, 06:39 PM
Blown79's Avatar
WTH
 
Last photo:
Join Date: Apr 2004
Location: wv
Age: 44
Posts: 58
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Yes you were right something is wrong. I run the same tranny in my F-800 and have the same problem from 4th to 3rd ,mine is wore out.
Ed
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 09-06-2004, 02:30 AM
Old enough to know better
 
Join Date: Aug 2004
Location: Denver, CO
Posts: 417
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Broken syncro rings are not all that uncommon. I've replace a number in school bus transmissions. If it was a recent rebuild, there shouldn't be any problem. Sounds like the rebuilder gave the old ones an eyeball and said, "Good Enough". He was wrong
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 09-08-2004, 01:48 PM
Member
 

Last journal entry: More propane stuff
Last photo:
Join Date: Jun 2003
Location: -
Posts: 277
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Got the trans in week before last and forgot to mention that it works great now.

John
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



All times are GMT -6. The time now is 07:48 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.