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Old Apr 2, 2014 | 06:44 PM
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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.
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Old Apr 2, 2014 | 07:59 PM
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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.
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Old Apr 2, 2014 | 08:04 PM
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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.
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Old Apr 2, 2014 | 08:21 PM
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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.
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Old Apr 2, 2014 | 08:35 PM
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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.
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Old Apr 2, 2014 | 08:54 PM
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Gen II opti's are good for 125k miles.

I would consider cleaning the cap, tho...
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Old Apr 2, 2014 | 09:13 PM
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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.
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Old Apr 2, 2014 | 09:50 PM
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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
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Old Apr 2, 2014 | 11:03 PM
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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.
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Old Apr 2, 2014 | 11:03 PM
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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.
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Old Apr 3, 2014 | 12:01 AM
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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
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Old Apr 3, 2014 | 08:28 AM
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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...

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Old Apr 3, 2014 | 04:26 PM
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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.
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