Opti Questions
Thread Starter
Instructor
Joined: Jun 2006
Posts: 195
Likes: 0
From: Canyon Country CA
Opti Questions
My waterpump leaked on my Opti until my car would not start. I have both components removed and have a couple of question that I haven't seen in other posts.
I've opened up the Opti and aside from being wet it looks pretty good. No carbon traking or serious corrosion. However, when I spin the rotor it does not feel smooth. There is no radial or axial play but it feels almost like there are small detents in part of the rotating assembly. Is this normal?
My Opti had quite a bit of cooked oil sludge on the exterior. There were no o-rings on either end of the water pump coupler as shown in the factory manual. Can these disappear or am I seeing a previous sin?
Thanks in advance for any info you can provide!
Joe
I've opened up the Opti and aside from being wet it looks pretty good. No carbon traking or serious corrosion. However, when I spin the rotor it does not feel smooth. There is no radial or axial play but it feels almost like there are small detents in part of the rotating assembly. Is this normal?
My Opti had quite a bit of cooked oil sludge on the exterior. There were no o-rings on either end of the water pump coupler as shown in the factory manual. Can these disappear or am I seeing a previous sin?
Thanks in advance for any info you can provide!
Joe
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
WP - There are no O-rings associated with the coupler itself. There is a O Ring on the water pump drive shaft near the base, and there is an O ring on the drive shaft from the front of the engine. I think these are the 2 O rings you see in your diagram.
Opti - Sounds like your bushing is shot. If you spin the splined drive by hand(or rotor as you have done), it should be smooth and consistent with no "binding" feel. The bushing is a non-repairable item unfortunately.
How many miles on your vette ?
You need to replace both. Best bang for your buck would be to order from "thepartsladi" :
http://search.stores.ebay.com/Thepar...346802QQsofpZ0
Opti - Sounds like your bushing is shot. If you spin the splined drive by hand(or rotor as you have done), it should be smooth and consistent with no "binding" feel. The bushing is a non-repairable item unfortunately.
How many miles on your vette ?
You need to replace both. Best bang for your buck would be to order from "thepartsladi" :
http://search.stores.ebay.com/Thepar...346802QQsofpZ0
Le Mans Master
Joined: Apr 2000
Posts: 5,589
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From: DrunkDefender
CI 1-2-3-4-5-6-7-8 Veteran
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St. Jude Donor '07-'10
The partladi is where I got my opti when mine crapped out at 90k miles. Less than $300 shipped for a new delphi unit isnt bad. Just make sure you get a real ac delco or delphi unit. There are alot of cheap imitations out there that are being sold as OEM.
You need to replace yours anyways so do it right. If you dont go with an ewp and go with a stock replacement, tap the weephole on the underside of the pump and place a small pipe nipple in it, then attache a hose to it so that when it leaks it will not hit the opti.
You need to replace yours anyways so do it right. If you dont go with an ewp and go with a stock replacement, tap the weephole on the underside of the pump and place a small pipe nipple in it, then attache a hose to it so that when it leaks it will not hit the opti.
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
The partladi is where I got my opti when mine crapped out at 90k miles. Less than $300 shipped for a new delphi unit isnt bad. Just make sure you get a real ac delco or delphi unit. There are alot of cheap imitations out there that are being sold as OEM.
You need to replace yours anyways so do it right. If you dont go with an ewp and go with a stock replacement, tap the weephole on the underside of the pump and place a small pipe nipple in it, then attache a hose to it so that when it leaks it will not hit the opti.
You need to replace yours anyways so do it right. If you dont go with an ewp and go with a stock replacement, tap the weephole on the underside of the pump and place a small pipe nipple in it, then attache a hose to it so that when it leaks it will not hit the opti.
Also thepartsladi is a good place to purchase a new water pump.
