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Topic: Water pump

in Forum: C3 Cooling and Heating Systems


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Water pump

Posted: 9/26/08 7:21pm Message 1 of 13
williammoore2
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Mundelein, IL - USA
Joined: 6/9/2008
Posts: 411
Vette(s): 1978 25 anniversary blue on blue with T-tops.
I just replaced the water pump, I have already replaced the a thermostat, radiator cap, all fluid, top radiator hose, and all drive belts but its still running near 200 is that normal? The new themostat is rated for 165 and it is the second one that I have put in. Did that before realizing water pump was bad in an effort to stop high temps. Bloody auto parts store did not have a bottom line with a sping in it so I was not able to replace that. Will that have an adverse impact?


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Water pump

Posted: 9/26/08 7:32pm Message 2 of 13
SilverStreak
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Oceanside, CA - USA
Joined: 11/19/2003
Posts: 191
Vette(s): 1978 Silver Anniversary model. Original L82 engine, 700r4 trans, edelbrock intake, thorly headers, rack&pinion steering, mono rear and front spring, MSD 6A box
My 78 runs 200 - 210, I've been told that is normal for our vetts.
 



Eddie

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Water pump

Posted: 9/26/08 7:38pm Message 3 of 13
williammoore2
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Mundelein, IL - USA
Joined: 6/9/2008
Posts: 411
Vette(s): 1978 25 anniversary blue on blue with T-tops.
I noticed the fan was also considerably stronger after the switch than before.


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Water pump

Posted: 9/26/08 7:43pm Message 4 of 13
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ebo
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Holland Patent, NY - USA
Joined: 6/3/2008
Posts: 4421
Vette(s): #1 *1980 White, Red interior 14,000 mile #2 *1980 Red, Oyster interior 93,000 miles Resto project car, rebuilt to 383 stroker

Will, did'nt a member just go thru this a month ago. I know they tried a few stats before they got a good one.

http://www.c3vr.com/forum/forum_posts.asp?TID=73866 Looks like it ended up being an air bubble in the system.
good luck.
ebo2008-09-26 19:52:03



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Water pump

Posted: 9/26/08 7:58pm Message 5 of 13
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
Some of the "later" Sharks do run a bit hotter. 200deg wouldn't be out of the ordinary, depending on ambient temps, and A/C-no A/C.
My '74 has never run over 180(according to the gauge), even in 100 temps with the A/C on.
I wouldn't be too concerned if your '78 ran at 200(well, that didn't come out right, but you know what I mean, eh?)
You might want to use an infrared thermometer to see what the actual temp is...it might not actually be that hot. Shark gauges ain't the most accurate to start with...
If it ain't puking when you stop, or get stuck in traffic, I'd have to say it's prolly otay.


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Water pump

Posted: 9/26/08 8:15pm Message 6 of 13
williammoore2
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Mundelein, IL - USA
Joined: 6/9/2008
Posts: 411
Vette(s): 1978 25 anniversary blue on blue with T-tops.
Temp climbs a bit higher when stuck in traffic.... but that is all the time up here. Today was the first drive since the switch. I am hopein that itll get down a bit lower.


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Water pump

Posted: 9/27/08 6:05am Message 7 of 13
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crossfire1982
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Cramerton, NC - USA
Joined: 8/22/2006
Posts: 1094
Vette(s): black 1982 coupe slate gray interior, 350 crossfire, 1985 fuel pump, Steeroids R&P conversion

Regarding the air bubble in the system the ebo spoke of.  I remember seeing posts about drilling a small hole in the new stat before install to allow air to escape and eliminate that problem.  Id love to see a pic of exactly where to drill the thermostat.  Im thinking of replacing mine with the type that stays open when it fails instead of closed when it fails.




Water pump

Posted: 9/27/08 8:27am Message 8 of 13
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my7t1
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Dorr, MI - USA
Joined: 8/21/2002
Posts: 2581
Vette(s): 71 Colonnade Hardtop Coupe Torch Red with black interior originally L48 built to push around 360hp

I also say 200 is not a problem William. Normal is 195, so 5 deg. ain't that much higher. Personally I'm a firm believer of , iffin it ain't broke don't be messin wid it.Smile

Oh, and by the way. You and I have the same last name. Maybe we're related? 
 
 
my7T12008-09-27 08:28:54



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Water pump

Posted: 9/27/08 10:39am Message 9 of 13
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TargaBlue72
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Lodi, WI - USA
Joined: 9/25/2007
Posts: 340
Vette(s): 1972 Targa Blue, T-Top, Saddle leather, 350 auto,numbers match, all original except '69 factory side exhaust. Previously owned: 1969 427, 390hp, 4sp, Riverside Gold coupe, factory side exhaust
My 72 350 automatic has run at 210 for the past 71000 miles and 35 years regardless of ambient temp, A/C working, or traffic.  I just assumed that was normal.  I'm with Terry, "If it ain't broke, don't fix it".Wink
Dean



 
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Water pump

Posted: 9/27/08 4:31pm Message 10 of 13
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TargaBlue72
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Lodi, WI - USA
Joined: 9/25/2007
Posts: 340
Vette(s): 1972 Targa Blue, T-Top, Saddle leather, 350 auto,numbers match, all original except '69 factory side exhaust. Previously owned: 1969 427, 390hp, 4sp, Riverside Gold coupe, factory side exhaust
Or maybe it is broke.  Is 210 too hot??  Am I shortening the engine life?  Joel?  Anybody??


 
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in Forum: C3 Cooling and Heating Systems


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