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

Engine Overhaul Questions....

Thread Tools
 
Search this Thread
 
Old Feb 22, 2009 | 08:59 PM
  #1  
fc_soldier's Avatar
fc_soldier
Thread Starter
Melting Slicks
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Default Engine Overhaul Questions....

I got a couple of questions that you guys can help me out with. The platform is a 1996 A4 LT1.


Timing cover... Im going with a electric water pump what timing cover do I use a 1995 0r can I use a 92-94 also?

Pull the engine or cam swap with it in there? Im disconnecting the tranny to put the converter in should I just pull the engine and avoid the leaning process?

What gasket work well with the 1 3/4 EM Long Tubes?
Reply
Old Feb 22, 2009 | 09:12 PM
  #2  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

You can use your 96 timing cover with the e. water pump.

I use Percys Al header gaskets with my EM headers.
Reply
Old Feb 22, 2009 | 09:18 PM
  #3  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

[QUOTE=STL94LT1;1569049894]You can use your 96 timing cover with the e. water pump.

IQUOTE]


Isn't there a hole in the cover that has to be plugged?

Jake
Reply
Old Feb 22, 2009 | 09:21 PM
  #4  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

Yes, if the water pump drive is removed. The hole has to be plugged. This is true no matter what year cover is used.
Reply
Old Feb 22, 2009 | 09:22 PM
  #5  
rklessdriver's Avatar
rklessdriver
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
Default

[QUOTE=JAKE;1569049953]
Originally Posted by STL94LT1
You can use your 96 timing cover with the e. water pump.

IQUOTE]


Isn't there a hole in the cover that has to be plugged?

Jake
Yes

The waterpump drive shaft hole...

And the crankshaft sensor hole if he runs a double roller timing set like he was planning.
Will
Reply
Old Feb 22, 2009 | 09:22 PM
  #6  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

Originally Posted by fc_soldier
I got a couple of questions that you guys can help me out with. The platform is a 1996 A4 LT1.


Timing cover... Im going with a electric water pump what timing cover do I use a 1995 0r can I use a 92-94 also?

Pull the engine or cam swap with it in there? Im disconnecting the tranny to put the convertor in should I just pull the engine and avoid the leaning process? What gasket work well with the 1 3/4 EM Long Tubes?
If you're going to change converters and do a cam, might as well pull the engine since most of the unbolting will be done to get the convertor out.

I'm going to change heads and cam on my son's 96 in a couple of months and I'm pulling the engine to do it. That way I can install a new timing chain set, degree in the cam and have better access to the head bolts. While it's out, I can clean the engine compartment too.

Jake

Last edited by JAKE; Feb 22, 2009 at 09:24 PM.
Reply
Old Feb 22, 2009 | 09:35 PM
  #7  
fc_soldier's Avatar
fc_soldier
Thread Starter
Melting Slicks
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Default

[QUOTE=rklessdriver;1569050017]
Originally Posted by JAKE

Yes

The waterpump drive shaft hole...

And the crankshaft sensor hole if he runs a double roller timing set like he was planning.
Will
You are right I am going to a double roller timing chain. They say I have to get rid of the OBDII crank sensor. Qoute from 400rwhp thread.

"The Cloys 9-3145 chain is a good one - BUT...

Your going to have to lose the OBDII crank sensor and have the code programmed out when the tune is done. "

And the OBDI 1995 timing cover doesnt have it I was wondering if the 92-95 all use the same timing cover.
Reply
Old Feb 22, 2009 | 09:40 PM
  #8  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

Originally Posted by fc_soldier
I was wondering if the 92-95 all use the same timing cover.
No, the 95 is different and the only one that will work with your gen II opti.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
Old Feb 22, 2009 | 09:46 PM
  #9  
fc_soldier's Avatar
fc_soldier
Thread Starter
Melting Slicks
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Default

Great so I have to hunt down a 1995 Timing Cover. Will this work?

http://paceperformance.com/index.asp...&ProdID=130501
Reply
Old Feb 22, 2009 | 10:13 PM
  #10  
neverendingprojects's Avatar
neverendingprojects
Racer
15 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Dec 2007
Posts: 298
Likes: 1
From: Escondido CA
Default

The link you posted doesn't seem to show me a pic,
I can not see any reason that your 96 cover wouldn't work,
You would just need to plug the Crank position Sensor hole in addition to the waterpump drive hole.... Also you will need to scrap the CPS sensor and have your PCM reprogrammed if you are planning on running an older style double roller chain!

Last edited by neverendingprojects; Feb 22, 2009 at 10:52 PM.
Reply
Old Feb 22, 2009 | 10:38 PM
  #11  
fc_soldier's Avatar
fc_soldier
Thread Starter
Melting Slicks
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Default

I found this pic of a 1996 LT4 Timing cover being compared to his new one.

Old left vs New right



Where can I get the block for the pump drive hole like has on the right?
Reply
Old Feb 22, 2009 | 10:47 PM
  #12  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

Originally Posted by fc_soldier
Where can I get the block for the pump drive hole like has on the right?
Jim had a local machine shop install that plug. He also had one done for me. On my second timing cover I just used a small freeze plug and JB Weld.
Reply
Old Feb 22, 2009 | 11:01 PM
  #13  
fc_soldier's Avatar
fc_soldier
Thread Starter
Melting Slicks
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Default

Originally Posted by STL94LT1
Jim had a local machine shop install that plug. He also had one done for me. On my second timing cover I just used a small freeze plug and JB Weld.
If this was off a 1996 where is the CPS at?
Does mine look the same as these? (minus the modded one on the right)
Can I use my timing cover and mod it like the right?
Reply
Old Feb 22, 2009 | 11:05 PM
  #14  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

The crank position sensor is lying next to the one on the right. I'm pretty sure you can just leave it installed in the timing cover to plug the hole.
Reply
Old Feb 22, 2009 | 11:07 PM
  #15  
96GS#007's Avatar
96GS#007
Race Director
 
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
Default

[QUOTE=fc_soldier;1569050184]
Originally Posted by rklessdriver

You are right I am going to a double roller timing chain. They say I have to get rid of the OBDII crank sensor. Qoute from 400rwhp thread.

"The Cloys 9-3145 chain is a good one - BUT...

Your going to have to lose the OBDII crank sensor and have the code programmed out when the tune is done. "

And the OBDI 1995 timing cover doesnt have it I was wondering if the 92-95 all use the same timing cover.
The only thing you need to get rid of is the reluctor wheel that mounts in front of the crankshaft gear. You can leave the CPS in place in the timing cover even though functionally it won't be doing anything other than plugging the hole.
Reply
Old Feb 22, 2009 | 11:11 PM
  #16  
96GS#007's Avatar
96GS#007
Race Director
 
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
Default

Originally Posted by fc_soldier
If this was off a 1996 where is the CPS at?
Does mine look the same as these? (minus the modded one on the right)
Can I use my timing cover and mod it like the right?
The picture is one I took of my timing covers.
- Yes they are '96 covers.
- Yes yours will look the same.
- Yes you can mod yours.
- No, you do NOT need to ditch the crankshaft position sensor (CPS), you can leave it bolted to the cover eliminating the need to plug the hole.
- You must get rid of the crankshaft reluctor ring.
Reply
Old Feb 22, 2009 | 11:16 PM
  #17  
fc_soldier's Avatar
fc_soldier
Thread Starter
Melting Slicks
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Default

[QUOTE=96GS#007;1569051399]
Originally Posted by fc_soldier

The only thing you need to get rid of is the reluctor wheel that mounts in front of the crankshaft gear. You can leave the CPS in place in the timing cover even though functionally it won't be doing anything other than plugging the hole.
Nice I hope this will do it. And the sensor doesnt protrude into te inside of the timing cover to "sense" the reluctor wheel? Hense messing with the double roller.
Reply

Get notified of new replies

To Engine Overhaul Questions....

Old Feb 22, 2009 | 11:17 PM
  #18  
fc_soldier's Avatar
fc_soldier
Thread Starter
Melting Slicks
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Default

Originally Posted by 96GS#007
The picture is one I took of my timing covers.
- Yes they are '96 covers.
- Yes yours will look the same.
- Yes you can mod yours.
- No, you do NOT need to ditch the crankshaft position sensor (CPS), you can leave it bolted to the cover eliminating the need to plug the hole.
- You must get rid of the crankshaft reluctor ring.
Thanks your doing great entertaining my feeble cause.
Reply
Old Feb 22, 2009 | 11:20 PM
  #19  
96GS#007's Avatar
96GS#007
Race Director
 
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
Default

[QUOTE=fc_soldier;1569051473]
Originally Posted by 96GS#007

Nice I hope this will do it. And the sensor doesnt protrude into te inside of the timing cover to "sense" the reluctor wheel? Hense messing with the double roller.
It doesn't protrude into the cover.
Reply
Old Feb 22, 2009 | 11:22 PM
  #20  
fc_soldier's Avatar
fc_soldier
Thread Starter
Melting Slicks
Supporting Member
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: May 2006
Posts: 3,385
Likes: 4
From: King George VA
Default

Great
Any idea on a good gasket for the headers?
Reply



All times are GMT -4. The time now is 08:50 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE