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2004 S Type 2.5L Waterpump replacement


Baudinot
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Hi Guys,

New post from me. Have bought the water pump and gasket from Europarts. (About £35). Where can I find simple instructions for doing the job of replacing with the old. Haynes doesn't do an S Type manual.

Kindest regards

Baudinot

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  • 2 weeks later...

Hi Joe and everybody,

Started the water pump replacement job over Christmas. I'm sorry, being a bit thick, but I don't get the bit about the belt tensioner. Can you be a bit more specific which pully the drawing refers to and where it is, and how it actually works. Also, how do I get the right tension back on. Does it matter if any of the pulleys move while the belt is off? 

Kindest regards

Baudinot

Happy Christmas and a Prosperous New Year to you all !!!!

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the belt tensioner is the only one that moves, the wheel is fixed to a alloy arm that has a 3/8 square in it, your 3/8 ratchet slot into the arm which is spring loaded,

by turning it one way it releases the belt tension,you have to hold it there while you remove the belt off any roller, letting go of it causes it to spring back

its spring return so the tension is self setting

refitting is reverse, put the belt on all the other rollers, then rotate the last one the tensioner, hold it there and slip the belt back on

look at the video above at 3:04, he puts the 3/8 ratchet into the tensioner and releases the tension.

its also worth taking a few pics with your phone of where the belt runs, as it quickly forgotten once removed

cheers

Joe

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1464356503_WPTensioner2.thumb.jpg.f826cd259efc15a1c14f214b74402951.jpg

Hi Guys'

This is a pic of the waterpump belt tensioner. I tried turning the 3/8 square drive anticlockwise. But it barely moved. Should I have loosened the nut below it first? Or tried a harder pull with a longer bar? How far to the left will it move. I am worried about snapping something.

Sorry to be such a pain. By the way, one of my hoses looks dodgy. Who is best for replacement hoses?

Kind regards

Baudinot

Water pump tensioner.jpg

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hi

like in the video, put your ratchet in the square, usually easiest if your ratchet is in line with the tensioner

so with the ratchet pointing straight up, push it to the left, anti clockwise, no need to touch the nut, pulley will move a least 1/2" to a 1"

there will be spring tension, I use a power bar, 2 foot long, makes it easier

and the tension will slacken, I would push the belt back towards the engine off the tensioner pulley

then you can release the ratchet

turning it to the right, clockwise, your just pushing against the belt, it would not move

cheers

Joe

 

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Hi Joe and everyone watching this saga. 

Progress? It's going well. New pump installed, new belt installed, new air filter installed, and ready with the antifreeze.

All but one of the hoses reconnected. The last one, a push-fit connector to the bottom of the header tank, uses a spring clip to hold it in place. Very fiddly as one is working mostly blind.  Guess who dropped the spring clip into the depths of the engine bay. Gave up looking when the light failed at 1600 today. Too late to ring the parts dept at Lancaster Milton Keynes. Any ideas as to where I can get another one? Better to get two, in case I lose the replacement. 

Rgds

Ed

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Taloo! Talay! O joyous day!

'Rupert' is out of theatre, back on the ward. He will be having visitors today. Hope someone brings him a nip of gin to celebrate with. 

The day started propitiously. It took half an hour of determined searching before I finally found the missing clip. My heart soared. Saved me another £80. After that it was air filter in, trunking connected, hose clips checked and final connections made. In with the 50/50 antifreeze and switch on. The pump just gently hums. The new belt slips silently round. After warmup, the engine is running at a little lower temperature than usual. It's breathing better. Bodes well for better economy and a bit more ummmph. Just waiting now to see if it has any leaks, though none visible as yet.

Mega thanks to you, Joe, and everyone else who helped this septuagenarian amateur spanner-slinger. It has been great fun, reminding me of days past when I thought nothing of taking  engines to bits with nothing more comprehensive than a heavy screwdriver and a box of bicycle spanners.

A very large Bombay and Tonic to you all. 🙂

(Closing the garage door on him, I could swear 'Rupert' is smiling}. 

Ed

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