C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

any transmission builders here?

Thread Tools
 
Search this Thread
 
Old Apr 30, 2018 | 06:52 PM
  #1  
oldgto's Avatar
oldgto
Thread Starter
Safety Car
10 Year Member
 
Joined: Feb 2012
Posts: 4,705
Likes: 983
From: Orlando FL
Default any transmission builders here?

We rebuilt our 1971 TH400 with the help of a great "How to" book full of pictures, and a new kit with seals, rings, & clutches. Now we`re having an issue getting input shaft end play adjusted. Every time we install the pump & torque it to the recommended 18 pounds, it locks up, and the tail shaft won`t turn. (However, the tail shaft will turn with the pump in, but not tightened down). We`ve tried several different sizes of thrust washers, with the same results. Do we need to go back in and check the end play adjustment between the clutch packs? And if so, where do we find the recommended specs at those intervals?

Last edited by oldgto; Apr 30, 2018 at 06:53 PM.
Reply
Old Apr 30, 2018 | 10:29 PM
  #2  
TOM B1's Avatar
TOM B1
Burning Brakes
15 Year Member
 
Joined: Oct 2003
Posts: 836
Likes: 26
From: Harrisburg Pa
Default

Try this
https://www.sonnax.com/tech_resource...-train-failure
Reply
Old May 1, 2018 | 12:22 AM
  #3  
427Hotrod's Avatar
427Hotrod
Race Director
25 Year Member
Liked
Loved
Top Answer: 5
 
Joined: Jan 2000
Posts: 13,018
Likes: 2,262
From: Corsicana, Tx
2020 C2 of the Year - Modified Winner
2020 Corvette of the Year (performance mods)
C2 of Year Winner (performance mods) 2019
2017 C2 of Year Finalist
Default

Are you sure the hubs dropped down through all the clutches?

JIM
Reply
Old May 1, 2018 | 10:37 AM
  #4  
TimAT's Avatar
TimAT
Le Mans Master
15 Year Member
Liked
Loved
 
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
Default

Originally Posted by 427Hotrod
Are you sure the hubs dropped down through all the clutches?

JIM

That's the usual cause- one of the clutch plates is not engaged in the spline on the hub. Easy to do.
Reply
Old May 1, 2018 | 04:47 PM
  #5  
oldgto's Avatar
oldgto
Thread Starter
Safety Car
10 Year Member
 
Joined: Feb 2012
Posts: 4,705
Likes: 983
From: Orlando FL
Default

THANK YOU gentlemen! We will check the link, and re-check the clutch pacs.
Reply

Get notified of new replies

To any transmission builders here?





All times are GMT -4. The time now is 06:04 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