AC Delco reman optispark dissection - Page 3 - Chevy Impala SS Forum
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post #21 of 27 (permalink) Old 09-12-2018, 12:32 PM Thread Starter
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All done.
Took it out & beat the snot out of it, zero misfires.
Should be good for a while now??
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post #22 of 27 (permalink) Old 09-14-2018, 11:28 AM
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In searching more info on bearing replacement I happened on this firm:


Dynaspark - The last distributor you'll ever have to buy


They machine all-new Gen II optis using their own manufactured sensor. I clearly missed this source in earlier threads. Bob there has been supplying for 9 years, and volunteered valuable intel and background on our well-known issues and efforts (and troubles) with reliable replacements. One thing I'll share is that P0336 code may come from sensor wheel being "too close" to the sensor (hub pressed on too far?), as much or more than from the disc being mis-clocked.



I've forwarded thread for his background and follow-up.

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear)
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, wait for it... LT-4 knock module!
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post #23 of 27 (permalink) Old 09-14-2018, 01:03 PM Thread Starter
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Personally, I would never spend that kind of money on an optispark.
Others probably do, just not me.

On a working OEM unit w/ a bad bearing this is a way to "fix" the problem.
Obviously, this "fix" isn't for everyone either.

I did this simply to buy some time until I swap in my rebuilt LT1 w/ 24x conversion.
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post #24 of 27 (permalink) Old 09-14-2018, 03:33 PM Thread Starter
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Quote:
Originally Posted by Marky Dissod View Post
$600 for a DynaSpark? No, thank you.

$60 for a Skip White OptiSpark? Thank you very much.

Since many no longer trust even ACDelco, maybe
The Opti Doctor would be a better place to spend $250-450.
Being this was by all indications a rebuilt/reman ACDelco I sure wouldn’t buy one!
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post #25 of 27 (permalink) Old 05-23-2019, 12:31 PM Thread Starter
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Quote:
Originally Posted by babywag View Post
All done.
Took it out & beat the snot out of it, zero misfires.
Should be good for a while now??
Just an update...8ish months and not so much as a hiccup.
Works wonderfully even high rpm/WOT, unlike previous aftermarket turd.
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post #26 of 27 (permalink) Old 05-23-2019, 02:25 PM
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Good to hear. I bought two bearings, but about zero probability of time or pieces to build that shimout. I only did a super tuneup on the 120K body and stuck it back it. Running great KOW [Knock On .... ] You do realize of course you could make a respkibel bidness outta doing new bearings to mailin ACD cases.

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear)
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, wait for it... LT-4 knock module!
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post #27 of 27 (permalink) Old 05-23-2019, 06:12 PM
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Quote:
but about zero probability of time or pieces to build that shimout.
96 Black
Is there some reason the shims can not be made from three pieces (to get the correct width) of shim stock? I get rolls and strips of it at industrial supply shops.

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