Optispark install problem - CamaroZ28.Com Message Board

Go Back   CamaroZ28.Com Message Board > 1967-2002 F-Body Technical Discussion > 1967-2002 Specific Technical Discussion > Fuel and Ignition

Reply Post New Thread
LinkBack Thread Tools Search this Thread
Old 03-31-2008, 09:55 PM   #1
Registered User
Join Date: Dec 2007
Location: Southern Illinois
Posts: 16
Send a message via Yahoo to DEEZ-Z28
Optispark install problem

I am in the process of changeing the water pump and optispark distributor on my 95 Z28 Lt1. Problem Getting the optispark back in with proper timeing. I installed the optispark and hooked up everything the way it normally would to test start before installing the waterpump. It started but wouldnt take any fuel. Main question ....did I accidentally install on #1 top dead center on exhaust stroke or what. I mean it started. It didnt want to but it did but would only run at idle and ehaust fumes were heavy. Any input here guys would help me get this job done quicker.

P.S. Any ideas on getting this optispark in with out damageing the O rings on the shaft?
95 Z28 Lt1 totally stock. Red with black top, T-tops, Bose premium sound. Automatic.
DEEZ-Z28 is offline   Reply With Quote
Old 03-31-2008, 10:48 PM   #2
Registered User
Join Date: Aug 2001
Location: Jacksonville,fla
Posts: 1,984
Send a message via AIM to MEAN LT1
Being that its a 95 I dont think you can install it the wrong way. Now if it was a 93-94 spline drive I would be a bit more concerned but its not. Make sure you have the plug wires on the opti correct as its easy to confuse.
94 Z-28
a4~>m6 conversion,Jethot long tubes,224/236 cam,1.6rr,3" y-pipe,Borla cat-back,slp cai,pro 5.0 shifter,TNT kit
Delivering your nitrous needs one or two bottles at a time. www.nitrousoutlet.com
MEAN LT1 is offline   Reply With Quote
Old 03-31-2008, 10:55 PM   #3
Super Moderator
Injuneer's Avatar
Join Date: Nov 1998
Location: Hell was full so they sent me to NJ
Posts: 43,530
Its very possible to assemble the pin-drive vented Opti, by putting the pin in the wrong hole. In theory.... it can't be done. In practice, it happens all the time.

Always dangerous to put it in the wrong hole.....


What do you mean when you say it "started but wouldn't take any fuel"? You mean that it managed to idle, but if you attempted to open the throttle it would not increase the RPM?

The fact that it actually started would seem to indicate its not that far off. If you think about it, aligning the dowel pin incorrectly would result in a 120-degree error relative to the cam, or a 240-degree error relative to the crank. Hard to understand how it would run. Are you sure you have all the plug wires in the correct terminals?

94 Formula A3+1: 381ci all-forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / Comp Cams custom solid roller / TH400 + GearVendors OD / Strange 12-bolt - 4.11's / 300-shot N2O / Spohn suspension / 6-pt roll bar with integrated SFC's / AutoMeter instrumentation / MoTeC M48Pro engine management system / a few other odds 'n ends. 800HP/800LB-FT at the flywheel.
Injuneer is offline   Reply With Quote
Old 04-01-2008, 05:36 AM   #4
rskrause's Avatar
Join Date: Dec 1969
Location: Buffalo, New York
Posts: 10,757
Send a message via AIM to rskrause
Was it running right before you installed the new Opti?

'95 Z-28 383: Procharger, nitrous, etc. BBC 27T race car. "Every man dies, not every man really lives" William Wallace (Braveheart)
rskrause is offline   Reply With Quote
Old 04-02-2008, 11:01 AM   #5
Registered User
Join Date: Jul 2004
Location: MI
Posts: 1,164
I've installed a vented pin driven opti w/ incorrect orientation. So... now I pull the dist cap and check rotor alignment with plug #1 wire termal on the dist_cap (cyl #1 on TDC). I find that this helps eliminates the potential for misalignment @ assy. Hope this helps. B.
mzgp5x is offline   Reply With Quote
Reply Post New Thread

Similar Threads
Thread Thread Starter Forum Replies Last Post
Intermittent ignition/fuel 97Z28Muscle Fuel and Ignition 2 02-06-2015 11:44 PM
Eagle H-beams, 643 heads, gudeplates/studs Catmaigne Parts For Sale 4 12-25-2014 01:16 PM
Watch Cheap Opti Fail on the Test Bench Injuneer LT1 Based Engine Tech 5 12-15-2014 10:36 AM
optispark brentbrowning01 General 1967-2002 F-Body Tech 17 12-03-2014 11:36 PM
Parts-ter Russtebo Site Help and Suggestions 0 08-31-2002 09:53 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 11:34 PM.


Copyright © 1996-2013 CamaroZ28.Com. All rights reserved.