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08-29-2008
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#1 |
   
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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The dreaded water pump failure and a weekend project
So wednesday night in the garage I get ready to install a headlight bucket clip I lost to finally finish that job correctly (I was installing HELLAs last weekend when I heard a clip fall) Never found that little bugger lol. Ive also been having a lot of cooling problems lately. In 6th gear on the freeway no problems but if I get caught in traffic here comes almost 260!!! Underneath the left wheel is a puddle. Damit looks and feels like Glycol. Maybe im lucky and its a hose nah sure enough she leaking centerline on the car after running it for a few minutes. Well I have a waterpump in my parts crib a new radiator and a new set of Black Samcos and clamps. I was going to wait until fall/winter do do this job sure enough it turns out to be an Arizona summer garage special. Well Im lucky enough to have a four day weekend Jeffvette suggested to make it a good project job so I guess my dance card is full for the weekend. After work tonight my goal was to remove the radiator.. What a bear of a job. Those three small screws on each side of the upper radiator shroud slowed me down a bit. A pair of metal shears were my best friend to cut the corner off the shroud to get around the oil cooler lines and AC lines. And that short little thermostat hosing hose to remove was pure PITA as well. So Phase I is done. See anything that might be causing any heating issues on my 91?
      Tomorrow I face the waterpump. I ordered a new set of SPAL fans from MidAmerica a few weeks ago. So I called them today to find out the status on them. I was notified that "oh they are being dropped shipped from the Manufactuer due date 1 Oct. What a pisser and the boneheads did not even tell me. AZZHATS!!! Would have been nice to have them as promised to hit this cooling problem from all sides. It was 102 in the shade of the garage but in reflection I remember when I didnt even have a Garage. GC
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V Last edited by GOLDCYLON; 08-29-2008 at 01:52 AM. |
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08-29-2008
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#2 |
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Join Date: Aug 2005
Location: San Fernando Valley, CA.
Posts: 896
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Re: The dreaded water pump failure and a weekend project
Its really not bad man, Id rather change the water pump that mess with pulling the fans and radiator. Just clean everything off real well so you can see what bolts go where (they are different), youll be done in no time.
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1990 ZR1, 142,000 miles-Black on black 4.09's Haibeck chip, 3"exh, K&N, meth inj. |
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08-29-2008
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#3 | |
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Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: The dreaded water pump failure and a weekend project
Quote:
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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08-29-2008
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#4 | |
 
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: The dreaded water pump failure and a weekend project
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 I cheated & pulled the oil lines & never put those 7mm side bolts back in the shroud.... Make the screen that is listed in the how to section over at the netreg site and you'll not have to worry about having a forest in the stack again. I got a Q for ya, those spail fans are better than the updated ones that GM has for our cars? Why does your replacement rad have trans cooler lines? Sorry two Q's for ya....  Thanks for passing on the Mr. Haibeck tip on the bolts' trick!  Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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08-29-2008
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#5 | |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: The dreaded water pump failure and a weekend project
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less PN less cost on inventory.. Not sure how accurate my thought is but makes sense
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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08-29-2008
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#6 |
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Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: The dreaded water pump failure and a weekend project
-=Jeff=- your answer makes sense, from GM's point of view. I guess I'll be seeing Ron Davis when I need to replace my OE rad.....I hate to give the space over to something I can't use unless I can figure a way to pump the zf's fluid thru there .....hummmmm....proly a very dumb idea!
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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08-29-2008
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#7 |
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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I'll take on a water pump any day!
Next to a heater core, a WP is a piece o' cake!
When you do the pump, Marc gave me a tip that worked quite well: Make a bold holder! There are (I forget exactly) about 14(?) bolts of three different lengths, and it is easy to mix them up and get the wrong ones in the holes. He said to lay the gasket on a piece of plywood and with a marker trace it and drill holes in the wood according to the gasket and then stick the bolts in the appropriate holes as you remove the pump. It worked great! One thing tho...do NOT use an air ratchet on the lower left side of the pump  ...It's an easy way to turn a two hour job into a 6+ hour job...Don't ask!Good luck! P. |
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08-29-2008
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#8 |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: The dreaded water pump failure and a weekend project
GC,
for that short lower hose, you could unbolt the T-Stat housing fromt he frame and it will make it MUCH Easier to install. Also when you do the hoses, there will be coolant otn eh other hose into the T-Stat housing.. I found out the hard way
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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08-29-2008
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#9 |
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,632
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Re: The dreaded water pump failure and a weekend project
the wp is actually easy get yourself a set of hose clamp pliers (i think thats what they are called) makes the clamp by the stat easy as fallin out of bed
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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08-29-2008
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#10 |
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,394
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Re: The dreaded water pump failure and a weekend project
Actually, keeping track of the water pump bolt placement is much easier than drilling a piece of plywood or even punching holes in a piece of cardboard. Just set the new pump on the bench & place each bolt in the position it was removed from into the new pump. Then when ready for the new pump. transfer the bolts over to the old pump & away you go.
Good call on the Spahl fans. Nice to know there's an improved performance fan that will fit our setup.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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