Water pump replacement 90
Thread Starter
Instructor
Joined: May 2003
Posts: 198
Likes: 0
From: Elkton MD
Water pump replacement 90
Any info I could get on getting the old pump off would be great.I got everything off but I it looks like the whole A/C bracket needs to come off,am I right. Also the fuel lines.
Moderator Emeritus
Joined: Jun 2002
Posts: 46,133
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From: Maryville Tn
CI 5 thru 12 Veteran
St. Jude Donor '09 thru '23
NCM Sinkhole Donor
I did the water pump on my L-98 when I had my '85. Followed the directions in my old Haynes manual. It's not difficult. Just take your time and you'll be fine. 
Race Director
Joined: Dec 2000
Posts: 17,551
Likes: 26
From: El Paso Texas
I did it (actually, timing chain job) on my 84, quite similar procedure. The A/C compressor has to come loose, and has one hellaciously long bolt that's real fun to get to, but isn't a major undertaking. Fuel lines have to come loose.
Remember to bag and label all of your fasteners so it's easier to reassemble. The 84 had 4 different size water pump bolts and I believe the TPI cars do too, so it's important to label them.
Shouldn't take you more than 2-3 hours to change it out.
Remember to bag and label all of your fasteners so it's easier to reassemble. The 84 had 4 different size water pump bolts and I believe the TPI cars do too, so it's important to label them.
Shouldn't take you more than 2-3 hours to change it out.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 413
From: WV
One important thing I want to add...Before disconnecting the fuel lines take off the gas cap, then release the pressure on the line by using a towel to soak up the gas and pushing down on the pin in the schrader valve ( located next to the Fuel pressure regulator/ has a screw cap on it ) If you don't release the pressure first you will get a gas bath..I have a fuel pressure gauge that has a gas release on it, but if you don't have one this is the second best way....
..WW
..WW
Slingshot
Joined: Dec 2001
Posts: 3,817
Likes: 24
From: Charlotte NC
As mentioned above, you must bleed the pressure out of the fuel system prior to removing the fuel lines. You can easily do this by removing the fuel pump fuse from the fuse box, and then start the engine. Run the engine until it runs out of fuel (30 - 40 seconds) and dies. This will get all of the pressurized fuel out of your fuel lines. The fuel pump fuse is clearly marked.
Slingshot
Joined: Dec 2001
Posts: 3,817
Likes: 24
From: Charlotte NC
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Safety Car
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
I would just about rather take an azz whoopin than change out a water pump on any car. Like said above you just about have to disassemble the whole motor to get to it. Take your time, mark every bolt, take pics if you need to. Its just tedious, not hard.
Good Luck!
Good Luck!
Burning Brakes
Joined: Oct 2008
Posts: 1,091
Likes: 45
From: Albuquerque New Mexico
Dude, I took mine to a mechanic and had it replaced for $260. Inexpensive compared to the hassle of trying it yourself. It's one of the tougher things to replace, frustrating anyways from what I'm told.
