**Water Pump Weep Hole ?'s** - Chevy Impala SS Forum
 
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post #1 of 9 (permalink) Old 07-31-2016, 04:20 PM Thread Starter
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Question **Water Pump Weep Hole ?'s**

Guys,

Does it look like my weep hole is leaking from these pictures? You can clearly see soiled area around the weep hole but in the immediate vicinity, it appears to be unsoiled. I was in the middle of some routine maintenance and noticed what appeared to be dried saltwater type crustiness around it. The coolant is clearly the rust colored orange(I due use Green Coolant now but still comes out rust/orange colored after a while) so I don't think coolant actually leaked out but any not 100% sure as I have never seen this before. Pictures will follow in next post but just wondering what you guys think or if this is normal or if you guys have ever even seen this before.

Thanks for any thoughts/advice in advanced!!
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post #2 of 9 (permalink) Old 07-31-2016, 04:22 PM Thread Starter
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post #3 of 9 (permalink) Old 07-31-2016, 04:23 PM Thread Starter
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post #4 of 9 (permalink) Old 07-31-2016, 04:23 PM Thread Starter
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post #5 of 9 (permalink) Old 08-01-2016, 04:10 PM
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If any significant flow is coming out of that hole it will get on the serpentine belt and get slung around the engine bay. When mine went the power steering was slipping at idle due to the belt being wet and I had coolant slung up on the overflow tank. It also got into the opti and caused a misfire.

Easy way to check is stick something over the hole with the engine running...use a rag or you'll burn your fingers if the engine is hot...and it probably won't weep unless hot. I check mine frequently to make sure it's dry.

I've got the old housing in a box somewhere. I'll see what it looks like.
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post #6 of 9 (permalink) Old 08-01-2016, 04:38 PM
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the weep hole is there to allow coolant to "weep" but as the seal dries it "drips"...the later is when the pump needs replacement

On the LT1 though it is the placement of the weep hole and location of the Opti that causes the Opti to fail due to coolant exposure from a "leaking "weep hole. A common sign is power steering slips because the serpentine belt is wet from coolant leaking on it. Seeing any coolant drips on the floor is often not something anyone sees as the coolant gets slung around everywhere and dispersed. If you do see drip marks on floor from WP weep hole...the pump is long done

From the OP's pics the WP is clearly "weeping"...under use is it "leaking"...if not now it will be soon

Some glue on a small nipple and attach a small hose to it to "divert" the leaking weep hole coolant away from the Opti. The WP is still bad if it is leaking to much through the weep hole

For me this problematic situation vanished 17 years ago when I went to EWP. Same EWP and 90k miles later still working fine.

\'96 BBB 383/T-56
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post #7 of 9 (permalink) Old 08-01-2016, 05:51 PM
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Yeah, it does look like it's time for a new WP. If you decide to stick with a mechanical pump, consider installing a drain hose on the weep hole to divert water away in the event another pump fails.

Many of us have just used a fitting in there and attached a hose down to under the car. Something like this...

https://www.impalassforum.com/vBullet...drain-mod.html

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'95 Caprice SS conversion - Bonny Buckets - 96 Column, Shifter and Console - 3.73 Gear and Herter tune - Z/28 Cluster - Blazer OH Console - Green/Pink bushings - Chromed Impala Wheels - Eibach Springs and Bilstein Shocks - Corvette Engine Dress - the list goes on and still more to do...it never ends.
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post #8 of 9 (permalink) Old 08-03-2016, 11:54 AM Thread Starter
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Good look BALLSS/4DoorSS! I will be ordering a new WP and working on the weep hole drain mod you suggested. Thanks!
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post #9 of 9 (permalink) Old 08-03-2016, 01:39 PM
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Went with the AC Delco #252-700 and it's been holding up well. A little cleanup and some Gray Engine enamel and she still looks good. I did have to bend the heater hose tube a little but other than that , its been fine.

https://www.impalassforum.com/vBullet...-any-good.html

Be very leary of the WP's you may get from autoZone or others. Although I think I saw good reports from the NAPA units. Even AC Delco is not what it used to be as they seem to off-shore everything anymore.

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'95 Caprice SS conversion - Bonny Buckets - 96 Column, Shifter and Console - 3.73 Gear and Herter tune - Z/28 Cluster - Blazer OH Console - Green/Pink bushings - Chromed Impala Wheels - Eibach Springs and Bilstein Shocks - Corvette Engine Dress - the list goes on and still more to do...it never ends.
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