C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Dewitts trouble/question

Thread Tools
 
Search this Thread
 
Old Sep 5, 2008 | 07:17 PM
  #1  
Tom 35th anniversary's Avatar
Tom 35th anniversary
Thread Starter
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Aug 2001
Posts: 1,146
Likes: 9
From: Troy Ohio
Default Dewitts trouble/question

Did any of you guys that have a Dewitts radiator have trouble getting the tranny lines to thread into the radiator? I can get it to start (about 1 thread) and then it gets really hard to turn very fast!!! The threads in the radiator fitting look like a match to the threads on the tranny line, but they dont feel like they will go together. I'm really afraid I'm gonna crossthread/or ruin the radiator side threads!!!!!!!
Reply
Old Sep 5, 2008 | 07:44 PM
  #2  
engle1147's Avatar
engle1147
Le Mans Master
Supporting Lifetime
 
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Default

Contact Dewitts and ask about the thread tightness.

Are you using a A8A:http://www.dewitts.com/pages/product...asp?ProdID=299

CORVETTE DIRECT FIT RADIATORS

Testimonials The term Direct Fit® gets thrown around a lot today. Many companies offer replacement radiators and most of them require some alterations, even when they claim they fit.
Our Direct Fit® radiators are designed to install into the stock mounting and use the factory connections without any modifications or adapters. That's why the U.S. Patent and Trademarks office has granted DIRECT FIT® as our offical trademark.
Each DIRECT FIT® radiator starts with a USA made core, furnace brazed in a force nitrogen furnace. Our cores feature two rows cooling tubes, serpentine fin and they are epoxy free. Press formed end tanks are manually tig welded by expert craftsmen, providing the ultimate in stregth and apperance. Many companies build Corvette radiators, only one specializes in it.
Reply
Old Sep 5, 2008 | 08:08 PM
  #3  
MK 82's Avatar
MK 82
Melting Slicks
 
Joined: Feb 2008
Posts: 3,286
Likes: 6
From: Palm Beach
Default

Might need to chase the threads with a tap.
Reply
Old Sep 5, 2008 | 08:14 PM
  #4  
Road Agent's Avatar
Road Agent
Drifting
20 Year Member
 
Joined: Aug 2004
Posts: 1,430
Likes: 2
Default

Sounds like you already cross threaded them!
Reply
Old Sep 5, 2008 | 09:36 PM
  #5  
Tom 35th anniversary's Avatar
Tom 35th anniversary
Thread Starter
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Aug 2001
Posts: 1,146
Likes: 9
From: Troy Ohio
Default

Originally Posted by MK 82
Might need to chase the threads with a tap.
I ran a tap through them, ok now. I see that you have to have the lines perfectly perpindicular to the rad to get the threads started right!!!! What a pain in the a$$ with hard lines!!!!!
Reply
Old Sep 6, 2008 | 01:46 AM
  #6  
USAsOnlyWay's Avatar
USAsOnlyWay
Le Mans Master
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
Default

Glad you got it. On every auto-rad connection like that I have ever worked with were the same way. Gotta have them flush and metal lines make it a b@#
Reply
Old Sep 6, 2008 | 12:41 PM
  #7  
MikeC4's Avatar
MikeC4
Melting Slicks
 
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Default

Originally Posted by Tom 35th anniversary
I ran a tap through them, ok now. I see that you have to have the lines perfectly perpindicular to the rad to get the threads started right!!!! What a pain in the a$$ with hard lines!!!!!
Yep.....just like a master cylinder, anything less than perpendicular and you have a cross thread on your hands....ask me how I know .

Glad you got it together !!

Reply

Get notified of new replies

To Dewitts trouble/question





All times are GMT -4. The time now is 12:33 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE