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Mein Gott!
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Waterpump install problem
So I decide to do a little wrenching in the unheated garage tonight and attempt to install my brand spanking new H2O pump.....
I accidentally drop the pump under the car while trying to fit it on the front end and this chips off a small part of the impeller (which extends from roughly 12 'o clock to 2 'o clock if you're imagining the impeller as a watch face). Okay, this sucks but I figure it should still be okay to install. So I bolt it on and the outside pulley would now only move about 10 degrees in either direction.  I'm concluding that the chipped impeller no longer makes it perfectly circular and the rough edge is getting "hung up" on a part of the water passage routing on the block right behind it. Nice. So before I start bringing out the sandpaper and grinding on something, has anyone ever had this happen to them and was there an ultimate solution (rather than calling Paragon Products to inquire on their return policy on a purchase over three months ago 
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Johnny 1987 944S 1984 944 (R.I.P.) 1972 Triumph TR6 - 100% trouble free between breakdowns 2003 BMW 325xi |
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12-04-2006, 05:10 PM
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Bent the shaft.
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Hugh - So Cal 83 944 Driver Person NOT a 'real' Porsche -- Its Better!!!! When was the last time you changed your timing and balance belts and/or cam chain and tensioner? New Users please add your car's year and model to your signature line! Never break more than you fix! |
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12-04-2006, 05:23 PM
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That Guy
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I would get a new pump. It will be an expensive mistake, but it prevents you from making an even more expensive and PITA mistake a few minutes into running the engine for the first time.
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Jon 1988 Granite Green 911 3.4L 2005 Arctic Silver 996 GT3 Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1 |
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12-04-2006, 06:24 PM
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Registered
Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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Now that is quite the drop.........
Ouch Get another one...
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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12-04-2006, 07:07 PM
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Registered
Join Date: Oct 2005
Location: San Diego
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JB Weld can do so mighty fine recovery's.
The Flow Does Not need to be prefect... Just close. and clear of sides. former aerospace engineer.
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1987 924S with 968 Drive front to back, Bilstein Insert on mod/stock Struts, 450# Hypercoils, 28mm Torsion Bars, Weltmeister Adjustable Sway Bars, Lindsey 968 Light flywheel, Spec Stage II Clutch, ToYO RA1's, Auto Power Cage & 6 pt Harness, KLA Strut Brace, Greasy hands, heavy foot, and lots of smiles |
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12-04-2006, 07:28 PM
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I'm with Alex, Hugh and Jon...not an area to play with. If it wobbles or comes apart while driving, then there could be considerable damage to your engine. If it were something that didn't hurt your engine if it broke further like maybe an exhaust manifold that was cracked, you could experiment and try to repair it, but not something this important. I would replace it. I know that had to hurt and I'm sorry that happened.
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Tom 1990 944S2 Cabriolet 2002 Chevy Silverado 2500HD 2003 Maroon Ford F350 dually |
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12-04-2006, 08:26 PM
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Mein Gott!
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Yeah. The chipped part is the least of my worries. Even if I did manage to get the clearance there would still be an ever-so-fine impeller wobble and this doesn't really endorse peace of mind. By spinning it by hand it sounds completely silent and the bend is so fine you cannot even see it. Its the 1cm scrape on the outer edge that says there is a problem.
Jeez. I dunno. I'm going on a week long vacation tomorrow so I'll just put it away and think about it for now. Decisions decisions..........
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Johnny 1987 944S 1984 944 (R.I.P.) 1972 Triumph TR6 - 100% trouble free between breakdowns 2003 BMW 325xi |
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12-05-2006, 07:31 AM
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That Guy
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Remeber it may feel fine by hand, but spinning at 5000rpms how do you think that wobble is going to feel?
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Jon 1988 Granite Green 911 3.4L 2005 Arctic Silver 996 GT3 Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1 |
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12-05-2006, 08:16 AM
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Automotive Necromancer
Join Date: Nov 2006
Location: Beantown, MA
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That is 5K RPM crank speed, There may be a different ratio crank to WP. No, with that engine I would not fool with a bent shaft, JB weld could probably get you by if it was a small chip, for a large chip take it to a good welder and then file or machine the mating surface.
See if anyone in your area rebuilds water pumps. For a good rebuild the shaft and seals are replaced anyway all you need is a good body and impeller. I don't know if this WP has a common size shaft and seal, but I wouldn't be surprised either way. Sorry for your luck.
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There may be nothing quite as expensive as a cheap Porsche: Ruby Red 84 928S : White 87 924s 2.5L NA (Blinky) M44/07-43H10676 spoiler delete - 046/2B - Belts 9/12, Clutch and OC seals 8/08 andd Red 94 Del Sol: Please put your Make, Model and Year in Sig. Try not to break more than you fix. |
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12-05-2006, 08:33 AM
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1983 Porsche 944 2.5 liter
The Kraut Burner
The Bratwurst Burner
Das Boost
