Supercharged - waterpump failure

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Sep 18, 2017 | 05:59 AM

#21

CorvetteC5Norway

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Racer

Joined: Oct 2015

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Quote:

Originally Posted by stevieturbo

But is it the correct length for the application ?

It sounds almost like it's very tight...ie potentially too short ?

yes, standard belt from ECS. Installed by proffesionals

Sep 18, 2017 | 11:47 AM

#22

Smoken1

Joined: Apr 2013

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From: Oregon

St. Jude Donor '14-'15-'16-'17-'18-'19-'20-'21-'22-'23

I think it was from Jeg's
http://store.prw-usa.com/products/# ... 1434628

Sep 19, 2017 | 08:12 AM

#23

romandian

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From: Switzerland

Quote:

Originally Posted by CorvetteC5Norway

Well hurrahh! My new OEM pump broke the same way after 300 miles!
My installer is sure he is not overtightening the belt. What is happening? Smoken1; the pump in your picture, is that an upgrade from OEM? Where can I get it?

One thing I noticed by the road when I was removing the belt completely; it was really hard to get the belt removed from the balancer because the ECS spring tensioner was so close to the balancer. I was not able, with my hands, to move the spring tensioner at all. Is that right?

if the belt is without tension the pulley almost touches the balancer. thats how it is. there is a square hole below the pulley for a ratchet you move the tensioner with. how far up was the manual tensioner? what distance between the belt?

imo, dont trust the professionals, take everything apart, think about how it works and if it makes sence how it is. there might be some stupid mistake in the installation, like there was in mine, making the car eat pumps in your case.

Sep 19, 2017 | 05:55 PM

#24

BLOWNBLUEZ06

Tech Contributor

Joined: Apr 2007

Posts: 10,924

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From: Forney Texas

If you want to look at aftermarket pumps, I prefer the Edelbrock over the PRW all day long. I believe it's part # 8896 and 8898 is the pulley. They're pricey, but I believe they flow a lot better up top.

Sep 20, 2017 | 09:41 AM

#25

DOUG @ ECS

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From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321

As I said in your email, we use the Miezere mechanical. Regardless of what pump you choose, make sure the mounting tabs where the stock tensioner would have mounted (now the supercharger brackets) is the same as stock. I have seen people have belt issues from not checking that.

Sep 20, 2017 | 09:55 AM

#26

CorvetteC5Norway

Thread Starter

Racer

Joined: Oct 2015

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Quote:

Originally Posted by DOUG @ ECS

I saw this in another post, and has forwarded this info to Hans for verification. Right now Hans is looking into installing a new aluminum pulley on the oem water pump, since ESS has equipment for, and does design and manufacture pulley systems.

Sep 20, 2017 | 12:27 PM

#27

romandian

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From: Switzerland

do you have picts of how the pump broke?

Sep 21, 2017 | 01:41 AM

#28

CorvetteC5Norway

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Racer

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Quote:

Originally Posted by romandian

do you have picts of how the pump broke?

No, but it's pretty much the same as the one before and others I've seen here on the forum. It breaks in a ring around the axle a few mm into the "pulley" itself. Even I can see the reason for it breaking, there is between 5 and 10 cm sideways between the place where the pulley sits on the axle and where the belt runs on the pulley. There will of course be a great force pressing on the point of connection. And it's cast...

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Sep 21, 2017 | 02:23 AM

#29

romandian

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From: Switzerland

i also would say its cast and therefore question the wisdom of welding it to the shaft. be shure to post the aluminum pulley.

Last edited by romandian; Sep 21, 2017 at 02:23 AM.

Sep 21, 2017 | 06:33 AM

#30

stevieturbo

Melting Slicks

Joined: Jul 2004

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From: Northern Ireland

Are OEM pumps not pressed steel pulleys ?

I know my LS2 type definitely is, and pretty sure even my older LS1 type was

Sep 21, 2017 | 04:17 PM

#31

algZO6

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From: El Paso TX.

ive gone through two Miezere electrics and one eldebrock....both were junk. back to a stock unit with at tacked hub and all is well.

Sep 22, 2017 | 01:31 AM

#32

CorvetteC5Norway

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Racer

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Quote:

Originally Posted by algZO6

ive gone through two Miezere electrics and one eldebrock....both were junk. back to a stock unit with at tacked hub and all is well.

Tacked hub, could you plaese explain?

Sep 22, 2017 | 12:53 PM

#33

algZO6

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From: El Paso TX.

you tack weld the hub on the shaft to prevent it from walking.

Sep 22, 2017 | 01:32 PM

#34

CorvetteC5Norway

Thread Starter

Racer

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Quote:

Originally Posted by algZO6

you tack weld the hub on the shaft to prevent it from walking.

Well, it's not walking its breaking clear off in the cast, so I cant see that working on this pump.

Oct 13, 2017 | 05:22 PM

#35

CorvetteC5Norway

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Racer

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Here's the new aluminium pulley on the left, ready to be installed on the new oem waterpump 👍

Oct 17, 2017 | 10:40 AM

#36

romandian

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From: Switzerland

what kind of picture is this? i cant see/open it. there is just a green box.

if i open it in a new tab, it sais unvalid protocol.

Last edited by romandian; Oct 17, 2017 at 10:42 AM.

Oct 17, 2017 | 11:54 AM

#37

Turpid porpoise

Melting Slicks

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From: Virginia

Pic is working for me.

Oct 17, 2017 | 01:09 PM

#38

romandian

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From: Switzerland

thats fine. what do i do?

Oct 17, 2017 | 02:16 PM

#39

stevieturbo

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From: Northern Ireland

Pics work fine here.

I'll save it and upload it to the forum to see if that works for you ?

Attached Images

Last edited by stevieturbo; Oct 17, 2017 at 02:18 PM.

Oct 18, 2017 | 01:23 AM

#40

romandian

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From: Switzerland

thanks, today i can see both pictures, for some reason. still wondering what kind of picture it is (hosted?), because i had the "little green box phenomena" befor.

as to the pulley: unbelievable. how much was it? from solid, i suppose. are you going to shrink it on the shaft?

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