Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Shaarky on 21 June 2012, 18:53:10

Title: Trying to Replace 2.5 V6 Waterpump
Post by: Shaarky on 21 June 2012, 18:53:10
Hi waterpump broke and i need to replace it. i have removed three screws but it does not appear to want to come out. Trying to do this without removing the cambelt cover so its difficult to see whats going on.
Have i released all the screws? any reason why the pump does not want to come out? i have tried hitting it but it doesn't seem to move at all, and i dont want to damage anything other than the faulty pump.

Any advice greatly appeciated!
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: allen25 on 21 June 2012, 19:22:19
I've done mine on the 2001 V6 but I had the timing belt covers off. The water pump generally needs tapping with a rubber or protected hammer,  sometimes needs a bit of a whack. Oil the seal sealing ring before refitting and clean the block well before offering up the new pump. I'm going to get slated here, happens every time I respond to anything! Cheers!
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: noel on 21 June 2012, 19:26:05
I've done mine on the 2001 V6 but I had the timing belt covers off. The water pump generally needs tapping with a rubber or protected hammer,  sometimes needs a bit of a whack. Oil the seal sealing ring before refitting and clean the block well before offering up the new pump. I'm going to get slated here, happens every time I respond to anything! Cheers!
no slating from me thats sounds like practicle advice to me
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: noel on 21 June 2012, 19:28:44
Hi waterpump broke and i need to replace it. i have removed three screws but it does not appear to want to come out. Trying to do this without removing the cambelt cover so its difficult to see whats going on.
Have i released all the screws? any reason why the pump does not want to come out? i have tried hitting it but it doesn't seem to move at all, and i dont want to damage anything other than the faulty pump.

Any advice greatly appeciated!
may find it easier to remove timing cover more scpoe to see whats going on,& less chance of damaging timing cover HTH :y
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: dbug on 21 June 2012, 20:10:18
Remove cam belt cover.
Whack hard with a good sized copper hammer - may need a couple of hard whacks - will then probably fly off  :y
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Shaarky on 21 June 2012, 20:19:37
thx Noel and allen25  :)
i did start to remove the timing belt cover, but it didnt look as if it would come out without taking a lot of stuff off. I tried removing the tensioner pulley and some electrical leads, but it was still pretty wedged in, so i decided to persevere with it loose.
i guess i just wanted to double check there was nothing other than the 3 screws i removed, holding the pump in place, before i continued hitting it to try and release it.
if there is an easy way of getting rid of the timing belt cover, i'd be glad to hear how to do it, it would certainly make this a lot easier.
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: dbug on 21 June 2012, 20:24:16
Only takes about half an hour to get cam belt cover off mate  :y
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Shaarky on 21 June 2012, 21:17:39
KK thanks Dbug.
i'll look to see if i can find out what needs removing to get it out. Looked tight behind power steering pump, and a load of harnesses attached too.
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: RobG on 21 June 2012, 21:21:56
KK thanks Dbug.
i'll look to see if i can find out what needs removing to get it out. Looked tight behind power steering pump, and a load of harnesses attached too.
Slacken bolts on water pump pulley, remove aux belt, remove tensioner, water pump pulley, power steering pulley and crank pulley then cam belt cover off
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Shaarky on 21 June 2012, 21:44:07
Thx RobG looks like removing the power steering and crank pulley will do for me then :)
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Webby the Bear on 21 June 2012, 21:53:32
if your already at the point where youve got to the water pump and removed te three screws its easy from there. 15Mm on the aux belt tensioner. Turn clock wise. Pull belt off. Release tension. Slackened off pullies. Undo four cover screws. Your there. I love knocking the water pump off. Last time i didnt drain the coolant on purpose as i love to see the block drain. Weirdness i know :-)
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: noel on 21 June 2012, 21:56:48
if your already at the point where youve got to the water pump and removed te three screws its easy from there. 15Mm on the aux belt tensioner. Turn clock wise. Pull belt off. Release tension. Slackened off pullies. Undo four cover screws. Your there. I love knocking the water pump off. Last time i didnt drain the coolant on purpose as i love to see the block drain. Weirdness i know :-)
is it a fettish of yours  ;D ;)
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Big_Al on 21 June 2012, 21:59:18
if your already at the point where youve got to the water pump and removed te three screws its easy from there. 15Mm on the aux belt tensioner. Turn clock wise. Pull belt off. Release tension. Slackened off pullies. Undo four cover screws. Your there. I love knocking the water pump off. Last time i didnt drain the coolant on purpose as i love to see the block drain. Weirdness i know :-)


You are starting to worry me a bit now Webby.  ;D ;D ;D ;D 
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: dbug on 21 June 2012, 22:08:51
if your already at the point where youve got to the water pump and removed te three screws its easy from there. 15Mm on the aux belt tensioner. Turn clock wise. Pull belt off. Release tension. Slackened off pullies. Undo four cover screws. Your there. I love knocking the water pump off. Last time i didnt drain the coolant on purpose as i love to see the block drain. Weirdness i know :-)


You are starting to worry me a bit now Webby.  ;D ;D ;D ;D

Don't knock it till you've tried it Al  ;)
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Shaarky on 22 June 2012, 05:15:05
Hmmm i wonder. Should i re-fill the system just before hitting this pump? i'd hate to lose out on this once in a lifetime experience... ;D ;D
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: allen25 on 22 June 2012, 05:36:16
You may have finished the job by now but it is easy to miss one of the timing belt cover bolts just above/left of the aux belt tensioner.
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Darth Loo-knee on 22 June 2012, 09:56:51
if your already at the point where youve got to the water pump and removed te three screws its easy from there. 15Mm on the aux belt tensioner. Turn clock wise. Pull belt off. Release tension. Slackened off pullies. Undo four cover screws. Your there. I love knocking the water pump off. Last time i didnt drain the coolant on purpose as i love to see the block drain. Weirdness i know :-)

Steve what do you mean by 15nm on the aux belt tensioner mate? It needs far more than 15nm to release the auxbelt tension if thats what you mean. Also good practise to undo all the pulley bolts before removing the auxbelt.
There are also 5 bolts holding the cambelt cover on some aswell as 4 on others :y
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Steve B on 22 June 2012, 10:08:12
if your already at the point where youve got to the water pump and removed te three screws its easy from there. 15Mm on the aux belt tensioner. Turn clock wise. Pull belt off. Release tension. Slackened off pullies. Undo four cover screws. Your there. I love knocking the water pump off. Last time i didnt drain the coolant on purpose as i love to see the block drain. Weirdness i know :-)

Steve what do you mean by 15nm on the aux belt tensioner mate? It needs far more than 15nm to release the auxbelt tension if thats what you mean. Also good practise to undo all the pulley bolts before removing the auxbelt.
There are also 5 bolts holding the cambelt cover on some aswell as 4 on others :y

does he mean 15mm socket/spanner
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Darth Loo-knee on 22 June 2012, 10:22:15
if your already at the point where youve got to the water pump and removed te three screws its easy from there. 15Mm on the aux belt tensioner. Turn clock wise. Pull belt off. Release tension. Slackened off pullies. Undo four cover screws. Your there. I love knocking the water pump off. Last time i didnt drain the coolant on purpose as i love to see the block drain. Weirdness i know :-)

Steve what do you mean by 15nm on the aux belt tensioner mate? It needs far more than 15nm to release the auxbelt tension if thats what you mean. Also good practise to undo all the pulley bolts before removing the auxbelt.
There are also 5 bolts holding the cambelt cover on some aswell as 4 on others :y

does he mean 15mm socket/spanner

Ah I could of sworn it was an N :-[
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: Shaarky on 23 June 2012, 14:15:03
Big Thx to everyone who posted help, waterpump is done for the grand total of £43.00 which i'm definately happy about, since the last waterpump to go on me (vectra) involved rebuilding the head.

Gonna park this up and go for a beer i reckon  :y
Title: Re: Trying to Replace 2.5 V6 Waterpump
Post by: noel on 23 June 2012, 21:16:55
Big Thx to everyone who posted help, waterpump is done for the grand total of £43.00 which i'm definately happy about, since the last waterpump to go on me (vectra) involved rebuilding the head.

Gonna park this up and go for a beer i reckon  :y
good result ;) :y