in order to do a water pump on a 84 vette the chilton manual says you have to disconnect the ac system have it evacuated and remove the compressor,

it also mentions relieving fuel pressure and disconnecting fuel lines


is all that crap really nessisary to pull the water pump off this dumb thing?

 

Don't know about a '84 but later engines the compressor mounts off the WP bolts so it has to come off first.

BUT , there is enough lenght in the hoses to hang it to one side without disconnecting them so no evac / refill needed.
And the fuel ines run through the compressor mount so they have to be disconnected

 

I can't speak specifically for the 84' either but I have always been able to just lay it to the side.

There is only one way to find out...just do it

 

 

I have an 85 - once you unbolt the compressor it will lay forward. Note: one of the front mounting bolts on the compressor is a torx head and there is a notch on the pulley you have to line up to get it out. The fuel line must be disconnected. it sounds hard but fairly easy.

 

Mark the location of every bolt. On my 87 each bolt is different and needs to go back where it came from.

 

Take a scrap piece of cardboard and make a diagram of each bolt's location. Then punch a hole with a philips screwdriver and insert the bolts in relation to their installed positions.

 

Great idea
Sure beats my "toss em' all in one box" method

 

Wish it was my idea....

FWIW, you can also measure the particular bolts (helps with runner-manifold bolts) and write their measurement next to the bolt. This is a great help in case any bolt falls out if the cardboard hole loosens. Measuring also helps when you take multiple ones in for replacement to the hardware store and don't want to carry the piece of cardboard in.

 

thanks guys i figure ill start on it tomarrow it cant be any harder then the rack/pinion and suspension rebuild i just finished up with

 

You'll probably have to disconnect the A/C hoses and remove the compressor. I had to on my early 85. The advice on the torx bolt is good. It took me a while to find that one. Also had to remove the smog pump and disconnect fuel lines. The fuel lines are routed through the compressor bracket that is mounted to the water pump.

It is a pain to get to the water pump but should not take more than a day for the whole job. Recharging the A/C was half the cost of the job. ($200) Have fun. Its a good project to get to know what's under the hood.

 

Why?
There is plenty of hose to move the compressor out of the way without disconnecting.I have my engine out 4 times without removing A/c

 

my ac dosnet work anyway nothing really works on the car why i bought this bastard i dont know im thinking about deleting the ac either with the bracket if i cant find one soon and quick ship it or browse other ideas
but i plan on ripping all the lines off tomarrow while im in there with the accumulator and any other ac component i wont use


i live in michigan if its sunny out and im driving it the top will be off anyway so ac isnt a problem

 

I can tell you that when I replaced the water pump on my '96 LT4, I neither disconnected the AC compressor fittings or the serpintine belt - both of which the manual said were required.
I'd suggest you just go for it and see what happens.
Cire

 

I probably installed 3 different water pumps in a row and finally settled on a "flowkooler" brand pump. My car is an 86. I did NOT have to evacuate the AC at all. You can just pull on the hoses and move the compressor off to the side. It'll look funny but mine didn't leak even after three times.

 

Start the vet and pull the fuel pump fuse -- when it dies - turn off the car and pull a battery terminal -- pump -- pressure relived

 

Lose everything off the front;
http://forums.corvetteforum.com/c4-t...te-pulley.html

Just need to check WP rotation on '84; may be normal rotation already

 

IIRC, the L98s require removal of the AC compressor bracket because it is on the two water pump studs. Additionally, if the belt tensioner is not removed from the AC bracket, there is not enough clearance to even remove the AC bracket - just my experience from reading and doing the job on my '91 L98.

 

Yes that's absolutely true. The fuel lines go through the compressor bracket and underneath the compressor. You HAVE to dicsonnect those so relieve the fuel pressure as stated by the previous poster.

Still, you do NOT have to evacuate the A/C system at all. Just disconnect the compressor bolts and pull the compressor out of the way. I did this three times in a week and I guarantee it works.

Remember, One of the compressor bolts will be notched so don't lose that one. Try to put the bolts exactly where they came from and jiggle the compressor as you hand tighten the bolts initially.

Good luck!