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Topic: 1977 Water pump disassembly

in Forum: C3 Engines


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1977 Water pump disassembly

Posted: 6/19/07 10:15am Message 1 of 8
fowler12
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Toledo, OH - USA
Joined: 2/22/2007
Posts: 175
Vette(s): 1977 auto.L48 383 stroker
When taking off my water pump, do I need to first take the fan and the pulleys off to get it out of the car?  Thanks for you help!Smile


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1977 Water pump disassembly

Posted: 6/19/07 10:22am Message 2 of 8
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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
Yes...take the fan off, and then the wp pulley will come off next. Make a mental note, or take photos of where all the brackets go before disassembly...makes it much easier to put back together!


Joel Adams
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1977 Water pump disassembly

Posted: 6/19/07 10:38am Message 3 of 8
fowler12
Former Member
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Toledo, OH - USA
Joined: 2/22/2007
Posts: 175
Vette(s): 1977 auto.L48 383 stroker
Thank you.  Do I need to use a puller to get the fan and and pulley off the pump?


1977 Water pump disassembly

Posted: 6/19/07 12:41pm Message 4 of 8
71Shark
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Edmond, OK - USA
Joined: 7/13/2006
Posts: 400
Vette(s): 1971 Brands Hatch Green L48 Coupe Automatic Driver - restored 1995
Usually not.  The fan will come off as you take off the 4 nuts holding it.  The pulleys may slip right off or may need to be nudged a little to move them from the guide pin.


1977 Water pump disassembly

Posted: 6/19/07 12:41pm Message 5 of 8
70LS7
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Quincy, CA - USA
Joined: 4/4/2006
Posts: 85
Vette(s): 1970 LS5 4-speed 500 HP 468 C.I.
no you don't need a puller. The fan may be a little tight but just wiggle it and it should come right off, the pulley is held on by the fan bolts and should fall right off after the fan is removed


1977 Water pump disassembly

Posted: 6/19/07 12:43pm Message 6 of 8
70LS7
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Quincy, CA - USA
Joined: 4/4/2006
Posts: 85
Vette(s): 1970 LS5 4-speed 500 HP 468 C.I.
wow!! how's that for service 2 answers at exactly the same time


1977 Water pump disassembly

Posted: 6/20/07 4:50am Message 7 of 8
fowler12
Former Member
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Toledo, OH - USA
Joined: 2/22/2007
Posts: 175
Vette(s): 1977 auto.L48 383 stroker
I really appreciate all your help and such quick replies, thanks again!


1977 Water pump disassembly

Posted: 6/20/07 10:58am Message 8 of 8
fowler12
Former Member
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Toledo, OH - USA
Joined: 2/22/2007
Posts: 175
Vette(s): 1977 auto.L48 383 stroker
Can anyone tell me what the true difference is between the aluminum water pump and the conventional.  I need to replace my pump and am unsure which one to get.  I see the high performance aluminum pump with heavy duty bearings etc. but are these really better than the originals?  Thanks for you information on this!


in Forum: C3 Engines


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