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» Dennis Tomlin (White C4) by rubyragtop on Tue 16 Jan 18 20:22

Optispark / Water Pump


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voguev8

Regular

Mon 08 Jan 18 19:51

Optispark / Water Pump


Evening
My 1993 LT1 seems to be having the usual Opti-Spark issues.
Any ideas where I can get another and as the job to change is quite involved I had better change the water pump at the same time, again any ideas where to get one.
Thanks

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rubyragtop

Regional Rep

Tue 09 Jan 18 17:08

Re: Optispark / Water Pump


Keith Beschi of Eurovettes is a good place to start.

You have probably done research on this, but I believe that the opti-spark from the 1995/96 model LT1 is compatible and has a modification that helps prevent the condensation problem that kills the earlier opti-sparks.

You are right about changing the water pump at the same time. This is a 'belt and braces' fix that makes a lot of sense.

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corvetteville

Club Member

Tue 09 Jan 18 21:39

Re: Optispark / Water Pump


My 94 developed intermitant & very erratic running & cutting out. So I got a recon pump from a small supplier on EBay. Sent it US mail.The opti was a repro, dorman ? I think from a parts Store on eBay who didn't ship outside US, but a friend of a friend bought it back in her suitcase!! The difference in power & running etc was very noticeable. You will need new pump gasket, don't loose the little drive shaft for the opti & you need a socket on a long bar for the belt tensioner. Apologies if you know this already! Steve

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UkBeancounter

Club Member

Tue 09 Jan 18 23:44

Re: Optispark / Water Pump


Ask Paul at Lincolnshire Corvette to fit an MSD vented Optispark for you.
I have had 3 Optispark's on my 94 previously and the only one that has lasted is the MSD.

If you do want to have a go your self It is a bit of a nightmare. The clearance for removing the water pump is minimal and the Optispark mounted behind it (thanks GM) is a bit of a pig to get back in.

The whole job seemed much easier when I sat there drinking Coffee watching Paul sort it Laughing


--------------------
Sorry I can't come to work today, I need to see the Vette.

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eurovettes

CCCUK Supporting Vendor

Wed 10 Jan 18 00:08


the CARDONE one is good and works and is not crazy expensive
I have them in stock - but am "stuck" in San DIego until Jan 23rd Smile - shame

If you are in the Hatfield, Herts area - its a job Colin and I can get done - but I wholly recommend Paul @ lincs for the job too
cheers
keith

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UkBeancounter

Club Member

Wed 10 Jan 18 17:59

Re: Optispark / Water Pump


Keith,

Off topic, but can you get me a brake kit while your out there?

I will email the details if its possible.

Thanks

Jason


--------------------
Sorry I can't come to work today, I need to see the Vette.

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eurovettes

CCCUK Supporting Vendor

Wed 10 Jan 18 18:02

Re: Optispark / Water Pump


most probably Jason - email what you want
Keith

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Richard J

Club Member

Wed 10 Jan 18 18:24


Paul at Lincolnshire Corvette, did mine also, good bloke...

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voguev8

Regular

Wed 10 Jan 18 19:43

Re: Optispark / Water Pump


Thanks for replies. I live in Dorset, going to have to either do myself or get someone local to do. Car does still drive but only just!

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VetteWeekend

Webmaster

Wed 10 Jan 18 20:37

Re: Optispark / Water Pump


voguev8 wrote (View Post):
Thanks for replies. I live in Dorset, going to have to either do myself or get someone local to do. Car does still drive but only just!


You definitely want to speak to Adrian then...

http://www.abmstarters.co.uk/

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Last edited by VetteWeekend on Wed 10 Jan 18 20:38; edited 2 times in total. [13 %]
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