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

'96 starter shim question

Thread Tools
 
Search this Thread
 
Old Apr 6, 2014 | 09:41 PM
  #1  
2Tarpon's Avatar
2Tarpon
Thread Starter
Instructor
 
Joined: Jun 2013
Posts: 105
Likes: 2
From: Lecanto Florida
Default '96 starter shim question

Today I pulled the bad starter out of my '96 Collector Edition. It's a rebuilt installed by the PO. This rebuilt starter has worked fine for the year I've owned the car...until it just quit the other day. I have a new starter on order but before I install the new one I have to ask...do all late C4 starter installations have shims? There were no shims with this old starter? Everything I've read about installing starters on an LT1 engine mentions shims.
Reply
Old Apr 6, 2014 | 10:01 PM
  #2  
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

No shims on my 94 C4. But I did have to shim my friends 95 LT1 TA.
Reply
Old Apr 6, 2014 | 10:50 PM
  #3  
lt4obsesses's Avatar
lt4obsesses
Le Mans Master
15 Year Member
 
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
Default

No shims on my '96 manual, and it was replaced with a reman a few years ago.
Reply
Old Apr 7, 2014 | 06:32 AM
  #4  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
Default

Shimming of the starter is a one time requirement at the replacement of the starter. There are several tutorials of the proper way to determine if it's required or not. Time to read! Your ordered starter may include instructions, maybe even shims.

I might have considered checking the one you took off even though it was a reman. There's little to fail in a 'denso style starter.

There's some after-market starters that require shimming in two directions.

Last edited by WVZR-1; Apr 7, 2014 at 06:36 AM.
Reply
Old Apr 7, 2014 | 06:41 AM
  #5  
WW7's Avatar
WW7
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
Default

If you have no shims and you use a stock starter again , chances are you will not need them on the replacement..But you need to check... Do a search on Youtube, there are lots of tutorials on how to check gaps to see if it needs shimming...One thing to remember is, if the gap is wrong , you can damage your Flywheel / flexplate....WW

Last edited by WW7; Apr 7, 2014 at 06:45 AM.
Reply
Old Apr 7, 2014 | 04:42 PM
  #6  
2Tarpon's Avatar
2Tarpon
Thread Starter
Instructor
 
Joined: Jun 2013
Posts: 105
Likes: 2
From: Lecanto Florida
Default

Originally Posted by WW7
If you have no shims and you use a stock starter again , chances are you will not need them on the replacement..But you need to check... Do a search on Youtube, there are lots of tutorials on how to check gaps to see if it needs shimming...One thing to remember is, if the gap is wrong , you can damage your Flywheel / flexplate....WW
Thanks for the helpful reply. You're right, there is a lot of good information on Youtube about how to correctly measure to see if shims are needed. I'm glad now that I posted the question. I didn't think of Youtube and my Service Manual was very vague.
Reply
Old Apr 7, 2014 | 04:54 PM
  #7  
jemidyette's Avatar
jemidyette
Instructor
10 Year Member
 
Joined: Mar 2013
Posts: 163
Likes: 0
Default

My 95 Vette does NOT have shims, but I'm not sure if the starter is original. However the FSM talks as if it should be there. So far it hasn't caused any problems for me.
Reply
Old Apr 8, 2014 | 10:26 PM
  #8  
jv9999's Avatar
jv9999
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2014
Posts: 2,192
Likes: 381
From: Lunenburg MA
Default

I can always tell by the sound of a cranking SBC if it has the necessary clearance. If they don't, they just don't sound right.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Apr 9, 2014 | 05:19 AM
  #9  
gerardvg's Avatar
gerardvg
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2009
Posts: 3,752
Likes: 276
From: Melbourne, Victoria, Australia
Default

Most never check the clearance between the ring gear and starter gear, some get away with it others are not so lucky and break the starter casting. I use a paper clip the thickness of a paper clip is what you need to make sure the starter gear "tip" does not jam up hard to the recces of the ring gear .

I usually do this when a new starter is bolted for the first time, i pull the starter gear out manually and let it mesh into the ring gear on the flywheel or flex plate. I make sure i can fit a paper clip wire thickness between the tip of the starter gear and recces of the ring gear.

You can eventually break a starter housing if there is insufficient clearance.
Reply
Old Apr 9, 2014 | 07:23 AM
  #10  
2Tarpon's Avatar
2Tarpon
Thread Starter
Instructor
 
Joined: Jun 2013
Posts: 105
Likes: 2
From: Lecanto Florida
Default

One of the Youtube videos I watched recommended that you pull the starter gear out and put some white paint on it prior to installing the new starter. Then install the unit and test start it a few tines. After that, remove it again and inspect the paint. The paint will be removed on the exact area of contact of the gears. Then shim as indicated, re-install and torque the mounting bolts to 35 lb ft. I think I may try this just to be sure.
Reply
Old Apr 9, 2014 | 08:11 AM
  #11  
WW7's Avatar
WW7
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
Default

Originally Posted by 2Tarpon
One of the Youtube videos I watched recommended that you pull the starter gear out and put some white paint on it prior to installing the new starter. Then install the unit and test start it a few tines. After that, remove it again and inspect the paint. The paint will be removed on the exact area of contact of the gears. Then shim as indicated, re-install and torque the mounting bolts to 35 lb ft. I think I may try this just to be sure.
Most of the instructions I have read say to use the same procedure as mentioned above by gerardvg...Use a metel paper clip to gauge the distance between the engauged drive gear and the flexplate/flywheel gear, this gives you about .040" clearence which is perfect..I have used this procedure with all starters I have replaced and never had a problem....Why mess with success, no need to pull out the paint.........WW

Last edited by WW7; Apr 9, 2014 at 08:20 AM.
Reply
Old Apr 9, 2014 | 12:04 PM
  #12  
Deepa's Avatar
Deepa
Burning Brakes
10 Year Member
 
Joined: Mar 2010
Posts: 1,094
Likes: 68
From: Providence RI
Default

Why not take that starter and have it rebuilt? You won't need any shims that way.

Mike
Reply
Old Apr 9, 2014 | 02:43 PM
  #13  
2Tarpon's Avatar
2Tarpon
Thread Starter
Instructor
 
Joined: Jun 2013
Posts: 105
Likes: 2
From: Lecanto Florida
Default

I'm a bit rigid, I'd rather get a new OEM part than a remanufactured one. The new starter I ordered is scheduled to be delivered tomorrow. Depending on cost, I'm thinking of taking the old remanufactured one to have re-built again to keep as a spare part.

I crawled under the car again this morning and saw that it's easier to get access to the flywheel/starter gears than I originally thought. The paper clip method of gauging the clearance is the way to go.

Thanks for everyone's help!!
Reply

Get notified of new replies

To '96 starter shim question





All times are GMT -4. The time now is 01:18 AM.

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