C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Water Pump Replacement for 1988

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Old Jun 23, 2015 | 08:36 AM
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Default Water Pump Replacement for 1988

My water pump's weep hole looks like it's dripping, so I need to replace my water pump [1988].
Does anyone know of a link with instructions? I ran a search and didn't find one.

Thanks
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Old Jun 23, 2015 | 11:50 AM
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Start with this link: https://www.corvetteforum.com/forums...placement.html

Then you might google: 1988 Corvette water pump replacement.

Should provide you with instructions.

Good luck!
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Old Jun 23, 2015 | 09:45 PM
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Wayne88, having done this job 3 times over 20 years on my 88, I find it very helpful on your back if you remove the passenger wheel. Gets you closer to the engine front.
Loosen the gas cap also to make sure you relieve all pressure. The main fuel lines have to be disconnected.
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Old Jun 23, 2015 | 10:06 PM
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Thanks for the replies and the link.
It looks like a tedious job, but not too difficult.
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Old Jun 24, 2015 | 08:57 AM
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You're going to hate the A.I.R. system being in the way.
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Old Jun 24, 2015 | 11:29 PM
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Originally Posted by HAD2HAV2
You're going to hate the A.I.R. system being in the way.
My recollection is that the FSM tells you to take the A.I.R. pulley (or maybe the power steering pump pulley) off to get access to that one water pump bolt. I used a box wrench instead of a socket.
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Old Jun 25, 2015 | 12:05 AM
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Not sure if keeping all the parts OEM or weight is your thing.
I bought a standard SMC iron pump for my 86e.
60% Less than the price of an Al unit and runs just the same.

0.02
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Old Jun 25, 2015 | 07:38 AM
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Originally Posted by HAD2HAV2
You're going to hate the A.I.R. system being in the way.
There may be a few things I'd not like about this job.
I usually do all my own work on my Corvettes, but I may look for a mechanic to do this one. I don't have any spare time, and it looks like a PITA.
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Old Jun 25, 2015 | 09:45 AM
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Wayne88. Your looking at 2 hours in and a little less time going out since you what you removed. Like Cliff noted, there are 2 -10mm bolts at the Air Pump just above the thermostat housing that look impossible to remove easily but with a 10mm socket on the bottom one and a 10mm wrench on the top, it is doable.
If you do this job, get new special tan colored O-rings for the fuel lines. Yes it is a PITA but once you've done this your ready for anything as long as not fixing a electronic part.
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Old Jun 25, 2015 | 03:01 PM
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However Had2's time estimate is a bit optimistic.
Also be prepared to invest in other parts that will be very easy to replace.
Hoses, belt, t-stat to name a few.....







.

Last edited by JrRifleCoach; Jun 25, 2015 at 03:13 PM.
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Old Jun 27, 2015 | 08:03 AM
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Originally Posted by JrRifleCoach


However Had2's time estimate is a bit optimistic.
Also be prepared to invest in other parts that will be very easy to replace.
Hoses, belt, t-stat to name a few.....
I'll take my time when I do this job; I work on the Corvettes as a hobby, not a job. I'll set aside plenty of time, and take a break if I get frustrated.
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Old Jun 27, 2015 | 08:54 AM
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To me it's worth getting a good pump, I've have an edelbrock one on mine since they came out (97-98?), never a drip.
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Old Jun 27, 2015 | 08:28 PM
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Originally Posted by ex-x-fire
To me it's worth getting a good pump, I've have an edelbrock one on mine since they came out (97-98?), never a drip.
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