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

Water Pump Bearing

Thread Tools
 
Search this Thread
 
Old Aug 21, 2010 | 07:26 PM
  #1  
Camelotian's Avatar
Camelotian
Thread Starter
Instructor
10 Year Member
 
Joined: Aug 2009
Posts: 242
Likes: 0
From: La Verne California
Default Water Pump Bearing

My mechanic thinks he hears a sound that indicates my water pump bearing is suspect. I have a 94 stock LT1 (99K miles). He seems to be an honest guy, but is there any way to assure his diagnosis is correct? A few hundred bucks are at stake if I have him do it, or a lot of hours if I do it. Any advice would be appreciated. Don't want water on my Optispark.

Last edited by Camelotian; Aug 21, 2010 at 08:23 PM.
Reply
Old Aug 21, 2010 | 08:19 PM
  #2  
ex-x-fire's Avatar
ex-x-fire
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2009
Posts: 2,239
Likes: 288
Default

Well since there is no belt to remove to feel the bearing, you'll have to use a stethoscope or a long screw driver, place handle to your ear & the tip on the water pump housing. Oh yeah, another thing, remove the drive belt and run engine, this will eliminate anything else that might be making a bearing noise(like a alternator, p/s pump, ect) .
Reply
Old Aug 21, 2010 | 08:24 PM
  #3  
Camelotian's Avatar
Camelotian
Thread Starter
Instructor
10 Year Member
 
Joined: Aug 2009
Posts: 242
Likes: 0
From: La Verne California
Default

Originally Posted by ex-x-fire
Well since there is no belt to remove to feel the bearing, you'll have to use a stethoscope or a long screw driver, place handle to your ear & the tip on the water pump housing. Oh yeah, another thing, remove the drive belt and run engine, this will eliminate anything else that might be making a bearing noise(like a alternator, p/s pump, ect) .
Thanks, I'll try that.
Reply
Old Aug 21, 2010 | 10:38 PM
  #4  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
Default

Check the water pump's weep hole, if it is wet or signs of coolant, the bearing is shot.
Reply
Old Aug 21, 2010 | 11:14 PM
  #5  
92WhiteVetteGuy's Avatar
92WhiteVetteGuy
Instructor
10 Year Member
 
Joined: Dec 2006
Posts: 137
Likes: 0
Default

Hi,
The last 2 WPs I replaced the seal was dislodged hanging on the coupler and the bearing had visibly missing *****.
You might be able to get a small offset mirror (mounted on a srewdriver handle) like a dentist uses and take a peek behind the WP.
Best of Luck,

92WhiteVetteGuy
Reply
Old Aug 22, 2010 | 02:43 AM
  #6  
tpi 421 vette's Avatar
tpi 421 vette
Melting Slicks
20 Year Member
Active Streak: 30 Days
Photogenic
Top Answer: 1
 
Joined: Mar 2002
Posts: 3,108
Likes: 126
From: S.L.C. UT
Default

If you have 100,000 miles on the water pump, consider yourself lucky! You have got your moneys worth out of it. Usually from 80,000 to 120,000 miles is what they last.
Reply

Get notified of new replies

To Water Pump Bearing





All times are GMT -4. The time now is 05:26 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