Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

700r4 valve body problem

700r4 valve body problem

700r4 valve body problem


I have a 700r4. I'm rebuilding it and screwed up. I was drilling holes in the valve body walls like the kit told me to.... but there were two holes that were labeled "drill one OR the other, NOT BOTH" and I guess the carb cleaner fumes weren't well enough ventilated and i drilled them both. Its about a 2mm hole. I wanted to know if I should just JB weld it and smooth it out, really weld it, or and i just up the creek? If I was to really weld it what style weld would you guys recommend? Is the valve body steel, nodular iron or what? What would be the problems with a JB weld if it was smoothed out to exactly how the wall should be? Would the pressure just be too much? Well, thanks.  

RE: 700r4 valve body problem

Valve bodies are usually made of aluminum, and will distort if welded.

Go to a junkyard and buy another one.


Mike Halloran
Pembroke Pines, FL, USA

RE: 700r4 valve body problem

You didn't mention exactly where the hole is. If there is enough wall thickness you could possibly plug one of the holes with a small steel ball staked in place or tap it for a machine screw. And as far as welding goes you might be able to have it TIG welded, make sure to go in short bursts and allow the area to cool between welds (maybe even use a wet cloth or ice to absorb the heat).


RE: 700r4 valve body problem

Up the creek

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close