C4 General Discussion General C4 Corvette Discussion not covered in Tech

optispark

Old Apr 2, 2014 | 06:44 PM
  #1  
z-corvette's Avatar
z-corvette
Thread Starter
Intermediate
 
Joined: Dec 2011
Posts: 34
Likes: 0
Default optispark

i'm changing out my waterpump on my 1995 corvette and want to replace the optispark when i have it apart. what part(s) is known to fail? i don't know if it's the cap, distributor or both. thanks for your input.
Reply
Old Apr 2, 2014 | 07:59 PM
  #2  
kimmer's Avatar
kimmer
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jul 2009
Posts: 6,381
Likes: 66
From: SF bay area C.A.
C4 of the Year Finalist
Default

What's wrong with your opti? Like they say if it ain't broke don't fix it. The pump is usually changed when you need to replace an opti because you have to take it off anyway but changing a good operating opti just because your taking off the pump is just asking for trouble in my opinion.
Reply
Old Apr 2, 2014 | 08:04 PM
  #3  
cicch95's Avatar
cicch95
Melting Slicks
20 Year Member
Veteran: Air Force
Liked
Loved
 
Joined: Jul 2003
Posts: 3,227
Likes: 51
From: Pomfret, CT
Finalist 2020 C4 of the Year - Unmodified
Default

Originally Posted by kimmer
What's wrong with your opti? Like they say if it ain't broke don't fix it. The pump is usually changed when you need to replace an opti because you have to take it off anyway but changing a good operating opti just because your taking off the pump is just asking for trouble in my opinion.
Definitely a bad idea! Leave it be.
Reply
Old Apr 2, 2014 | 08:21 PM
  #4  
John A. Marker's Avatar
John A. Marker
Le Mans Master
15 Year Member
 
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
Default

leave the opti alone.

Take your new pump and modify the weep hole on the underside. I bought a brass nipple and drilled the hole a little larger, tapped in the nipple and put JB weld around it where it enter the pump. Then slipped some tubing over the nipple. Plumbed this down the front of the engine. So if it leaks thru the weep hole in the future, it will not go onto the opti.
Reply
Old Apr 2, 2014 | 08:35 PM
  #5  
eatmydst1234's Avatar
eatmydst1234
Burning Brakes
10 Year Member
 
Joined: Mar 2005
Posts: 800
Likes: 2
Default

How many miles on car?i don't know why people are so afraid of the opti's.. It's just like any other distributor, it needs maintenance sometimes too. New cap and rotor if over 40k miles on car. That is a cause of misfires too if gone without maintenance.
Reply
Old Apr 2, 2014 | 08:54 PM
  #6  
bogus's Avatar
bogus
Team Owner
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Default

Gen II opti's are good for 125k miles.

I would consider cleaning the cap, tho...
Reply
Old Apr 2, 2014 | 09:13 PM
  #7  
eatmydst1234's Avatar
eatmydst1234
Burning Brakes
10 Year Member
 
Joined: Mar 2005
Posts: 800
Likes: 2
Default

Originally Posted by bogus
Gen II opti's are good for 125k miles.

I would consider cleaning the cap, tho...
Not all of them go that long, some go a lot longer. You can't just throw a number out there like that. just like everything else maintenance is key.
Reply
Old Apr 2, 2014 | 09:50 PM
  #8  
Greg Gore's Avatar
Greg Gore
Le Mans Master
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Oct 2004
Posts: 5,841
Likes: 19
From: CLT, North Carolina
Default

Originally Posted by eatmydst1234
Not all of them go that long, some go a lot longer. You can't just throw a number out there like that. just like everything else maintenance is key.
I disassembled mine at 100K and all looked good. Had the front all apart anyway fixing oil leaks
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 2, 2014 | 11:03 PM
  #9  
eatmydst1234's Avatar
eatmydst1234
Burning Brakes
10 Year Member
 
Joined: Mar 2005
Posts: 800
Likes: 2
Default

Originally Posted by Greg Gore
I disassembled mine at 100K and all looked good. Had the front all apart anyway fixing oil leaks
it will continue to look and perform good because you fixed the oil leaks. if you would have let it leak you would have been in there before too much longer to replace the opti.
Reply
Old Apr 2, 2014 | 11:03 PM
  #10  
z-corvette's Avatar
z-corvette
Thread Starter
Intermediate
 
Joined: Dec 2011
Posts: 34
Likes: 0
Default

Originally Posted by eatmydst1234
How many miles on car?i don't know why people are so afraid of the opti's.. It's just like any other distributor, it needs maintenance sometimes too. New cap and rotor if over 40k miles on car. That is a cause of misfires too if gone without maintenance.
50k. looks like general consensus says to leave it be. just an idea since it will be torn apart. thanks for the replies.
Reply
Old Apr 3, 2014 | 12:01 AM
  #11  
kimmer's Avatar
kimmer
Le Mans Master
15 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jul 2009
Posts: 6,381
Likes: 66
From: SF bay area C.A.
C4 of the Year Finalist
Default

Originally Posted by z-corvette
50k. looks like general consensus says to leave it be. just an idea since it will be torn apart. thanks for the replies.
Changing the w/p is not torn apart add the opti and it's a diff story
Reply
Old Apr 3, 2014 | 08:28 AM
  #12  
mxw128's Avatar
mxw128
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2002
Posts: 1,232
Likes: 28
From: South Riding VA
Default

I didn't want to drill and tap so I epoxied a plastic vacuum elbow into the weep hole and ran a piece of hose past the opti...

Reply
Old Apr 3, 2014 | 04:26 PM
  #13  
cicch95's Avatar
cicch95
Melting Slicks
20 Year Member
Veteran: Air Force
Liked
Loved
 
Joined: Jul 2003
Posts: 3,227
Likes: 51
From: Pomfret, CT
Finalist 2020 C4 of the Year - Unmodified
Default

Originally Posted by mxw128
I didn't want to drill and tap so I epoxied a plastic vacuum elbow into the weep hole and ran a piece of hose past the opti...
Looks good! I think I will go that route.
Reply

Get notified of new replies

To optispark



Thread Tools
Search this Thread

All times are GMT -4. The time now is 02:40 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