C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Meziere WP

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Old Nov 21, 2002 | 04:09 PM
  #1  
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Default Meziere WP

I've decided to go with the Meziere electric water pump. Which pump are you guys running, the standard, or the Heavy duty.
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Old Nov 21, 2002 | 04:39 PM
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Default Re: Meziere WP (STL94LT1)

I went HD. It was only a few bucks more than STD. Fits without mods to anything.

Here's my warning. The pump comes with an inline fuse. I know 2 people that had the fuse body melt and stop the pump. I cut the in-line fuse off and installed an automotive type holder and fuse. Maybe it was over kill, but for a few dollars it was worth it to me.
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Old Nov 21, 2002 | 04:48 PM
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Default Re: Meziere WP (John Row)

I just got my HD pump today. The instructions talk about pressing out the existing bearing from the housing. Anyway around this without using a press, or should I just take it down to a local machine shop and spend the few bucks?

Jay
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Old Nov 21, 2002 | 05:15 PM
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Default Re: Meziere WP (JayH)

Once you get it off the engine and the front cover off, put a punch on the center of the shaft (impeller side) and hit it 5 or 6 times with a heavy hammer ( I used a 6LB maul). Be sure the other end of the shaft has enough clearence. Protect the mating surfaces of the pump. I covered them with 3 or 4 pieces of duct tape.
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Old Nov 21, 2002 | 09:10 PM
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Default Re: Meziere WP (John Row)

Once you get it off the engine and the front cover off, put a punch on the center of the shaft (impeller side) and hit it 5 or 6 times with a heavy hammer ( I used a 6LB maul). Be sure the other end of the shaft has enough clearence. Protect the mating surfaces of the pump. I covered them with 3 or 4 pieces of duct tape.
:yesnod:

On my '96 the MAF electrical block rested (barely) on the pump. Following the lead of another Forum member, I cut a piece of heater hose to fit as a cushion.

Anybody know a good place to buy weatherpack connectors that aren't already assembled? I'd like to replace the interference fit waterpump connector and my splices to the relay wires with weatherpack connectors. Gives me peace of mind and a more stock appearance

Jim Mason
'96 Grand Sport #007
Open Air lid, Flowmasters, Shorty Headers, 52mm Throttle Body, HD Meziere, LT4 HOT Cam, LT1 Edit
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Old Nov 21, 2002 | 09:35 PM
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Default Re: Meziere WP (96GS#007)

Hey Jim - spent a miserable day trying to get my OE water pump to fit in the Vette. After several hours and about a dozen attempts to get it to fit I sat down with a file and started breaking all the edges that Delco should have machined. By matching the look of the old pump to the new one I found several places that needed to be relieved....but didn't know how much metal to remove without trying a fit. Through trial and error (loads of cussing and tool throwing) I finally made the right passes with the file and it fell into place. Stopped working on it though cause I hadn't stopped since 0600 this morning. What a day!

Radiator showed up just a couple of hours ago - looks like I get to continue with the fun this weekend - sure hope it goes a little easier.

:seeya

By the way - I thought the heater hose fix looked just fine - you've got it cut and placed such that it looks like it belongs there - never notice it unless you bring it to someones attention. Just my $.02.
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Old Nov 21, 2002 | 09:55 PM
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Default Re: Meziere WP (Topload)

www.projecttransam.com/projects9.asp

Click on the above site, it looks to be very informitive about installing an electric water pump. It looks easy but maybe its not that easy to do...

If you have done it yourself, how much trouble is doing this?
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Old Nov 21, 2002 | 11:51 PM
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Default Re: Meziere WP (STL94LT1)

Installing a Meziere is really pretty simple. The hardest thing really is removing the old water pump impeller.
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Old Nov 22, 2002 | 11:25 AM
  #9  
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Default Re: Meziere WP (CowboyNVette)

It's that easy. Only I couldn't get the pump housing with the pump motor back into place as a single unit due to the A/C Accumulator. I installed the motor after setting the housing.

He mentions 6amps in the article, I saw 8amps. He might have the standard version. MTBF is the same for both.
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Old Nov 22, 2002 | 07:41 PM
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Default Re: Meziere WP (John Row)

For piece of mind I went ahead and used this circuit to give me a warning light if the fuse blows.
http://www.akmcables.com/mezinst2.jpg

I basically just used the bottom right side of the circuit. So I did not wire for the faulty ground.
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Old Nov 22, 2002 | 07:53 PM
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Default Re: Meziere WP (STL94LT1)

Darn Guy....why get so compilcated for such a simple fix........


If it's not broke.....don't fix it......

:confused:
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Old Nov 22, 2002 | 08:34 PM
  #12  
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Default Re: Meziere WP (oldace84)

Darn Guy....why get so compilcated for such a simple fix........


If it's not broke.....don't fix it......

:confused:
So whats complicated about this? Seems pretty simple and straight forward to me :lol: As far as my pump, I have almost 60,000 miles on it and I know its not gonna last much longer so I am gonna be prepared to replace it as soon as signs of coolant shows up at the weep hole on the water pump. I would rather be prepared with what I am gonna do than wait till it happens and have to do all this research in a big hurry. :yesnod:
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