Optispark installed wrong. I have a 94 caprice classic. When the engine turns over it acts like it's out of time. We have a convenient kit available for those who wish to upgrade to the vented Optispark. Aug 17, 2001 · The later (vacuum vented) Opti-Spark has a hub that is part of the Opti-Spark that has to mate with the longer dowel pin in the camshaft. I replaced the ignition control module, car has compression and spark so I’m just wondering if the previous owner installed the optispark wrong and what other things might cause the issue. 9% sure thats whats wrong, when i installed this same opti the first time it was out of timing and then after about 4 more tries i think i just got lucky and it was perfect. P. Oct 31, 2008 · The Opti-Spark system relies on two signals generated by an optical sensor pair and a timing disk. Sep 26, 2024 · Get it everything and I’ll install it. There are a couple of options for converting away from the Opti-Spark. Oct 1, 2003 · How to make opti-sparks last longer and perform better for LT1 owners. I am aware of how it fits into the cam but my question is is there more than 1 way to do it? Apr 10, 2012 · My engine isnt timed, i 99. You could change the CAM, timing cover, CAM gear, etc but this gets expensive, and is very labor intensive. Feb 16, 2005 · C4 Tech/Performance - Opti spark install - When installing the opti spark is there a right or wrong way to install it? Can you install it wrong? This is a 96 with a lt4. Jan 29, 2008 · I need help with this. Nov 4, 2009 · C4 Tech/Performance - Replacement Optispark and Water pump install - Part 1 (includes pictures) - A little background story: A few month's back, my '92 developed a very strange hesitation problem which would show up a few seconds after the car started running - only to last a few seconds - then disappear all together. It slid on easily and mounted flush. 3 days later I get a call from the shop saying it’s your valve train. but I was always under the impression that an optispark will only go on one way. It's kind of like installing a TC but in reverse. Feb 9, 2011 · Once again I'm working on my friends 97 Camaro. Lt1 Im getting a great spark from the coilbut a very weak spark from opti. please. Jan 7, 2011 · When installed correctly the mounting points on the opti will sit completely flush with the front cover. One in particular is from EFI Connection but this requires a serious investment of multiple components to convert the existing LT1 engine over to essentially an electronic fuel injection style Jul 10, 2009 · With the new OptiSpark installed, the engine started right up. Jul 20, 2009 · C4 Tech/Performance - Optispark Install Help! Timing/backfiring - (Fyi I a huge noob when it comes to cars, enlighten me! Im trying to learn as much as I can!) I have a 94' corvette and I am trying to install a vacuumed optispark. " By the end of the thread both those statements prove to be false. I think I did it the wrong way. So I've installed a new msd cap and rotor for the distributor and have also replaced the The camshaft does not necessarily need to be changed, but you will need to drill the cam centering hole deeper for the Optispark unit to slide in all of the way. So I bring all the kit in and before it’s installed, the mechanic goes out on leave. . I converted mine to the TorqHead 24X ignition and have no need for these. However you risk damaging it again. The sensors produce a high-resolution signal of 180 pulses per crankshaft revolution (for ignition system accuracy), and a profiled low-resolution signal. I'm not selling, but if someone wants to tinker with them shoot me a PM and cover shipping. You CANNOT bolt a 1995+ Optispark up to a 1992-1994 LT1. Find all the details inside GM High-Tech Performance Magazine. I've seen the same results over and over for the 13+ years I've been active on LT1 forums. Oct 1, 2022 · It doesn't engage very deeply and it's easy to get the wrong hole. That shaft has one large spline that has to mate properly at the cam gear and the Opti-Spark. Sep 11, 2025 · LT1-LT4 Modifications - OPTI Spark X3 - I was getting ready to throw these in the garbage but thought I'd see if there was any interest first. The MSD Jan 29, 2024 · I was wondering if there is anything that is out there to get rid of the Opti-Spark Distributor in my 1994 Z/28 LT1 engine? R. Change the Optispark out and be up and running again. Our Matco scan tool verified that the ECM was going into closed loop and everything was working normally. Aug 17, 2001 · PLEASE HELP!!! (mshipon) The Opti-Spark previous to the vacuum vented Opti (on the Vette, the vacuum vented started in '95) had a splined shaft from the camshaft gear to the Opti-Spark. Sep 20, 2011 · Optispark Problem Solve And Fix - F$%)#&% Opti! The Dirty Bird’s Optispark strikes again, and this time we strike back Apr 21, 2010 · forewarned. When you install it, it has to be lined up with that hole and you have to be able to slide the distributor all the way on so the mount bosses are touching the timing cover. Apr 10, 2012 · The standard response is either "I'm positive a installed it correctly" or "it only goes together one way. We changed the optispark yesterday, and it still runs like shit. So, what is the solution? You can do 1 of 2 things : 1. Thanks for posting on r/MechanicAdvice! This is just a reminder to review the rules. can anyone tell me step by step how its is done. You can probably force it on the wrong way. It is harder to put this one on the wrong way without breaking something. If there is a gap then you most likely dont have it installed correctly. The CAM is different. cgt bwk psd ikv vra idp cum vtc yap iqo nqx jjm aiu ier cpb