Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: kbou55 on 10 January 2008, 00:07:42

Title: 2.5 TD water pump failure???
Post by: kbou55 on 10 January 2008, 00:07:42
within eyesight of my house the engine temp red light came on so i switched off the engine an coasted home and let the beast cool down, some water came out the expansion cap but only a cup full id say.

i started it again and a few hours later and warmed it up, the engine started and was running fine with no bubbles or oil coming through the coolant with the cap off. i switched the cabin heat up full and no heat when there should be. the temp kept rising so i switched off the engine.

theres no coolant leaks so could it be the water pump impeller has shed a few blades and not circulating coolant or am i in bigger trouble?? :'( :-[ :'( :-[ :'( :-[ :'( :-[ :'( :-[

Title: Re: 2.5 TD water pump failure???
Post by: Marks DTM Calib on 10 January 2008, 09:46:26
Its reasonably common for the water pump to throw blades on this lump......so start here.
Title: Re: 2.5 TD water pump failure???
Post by: TheBoy on 10 January 2008, 12:29:00
And be aware, like most BMW engines, the heads are prone to cracking/warping through overheating, so don't let it go above 100C on the gauge...
Title: Re: 2.5 TD water pump failure???
Post by: kbou55 on 10 January 2008, 20:06:20
its gone to the local grease monkey to diagnose for me. It was hot for only a very short period, fingers crossed its ok or its back to the vectra again
Title: Re: 2.5 TD water pump failure???
Post by: kbou55 on 10 January 2008, 20:39:47
Quote
And be aware, like most BMW engines, the heads are prone to cracking/warping through overheating, so don't let it go above 100C on the gauge...

how should the said grease monkey check for a cracked/warped head on the bmw lump??????

thanks kb
Title: Re: 2.5 TD water pump failure???
Post by: TheBoy on 10 January 2008, 20:46:44
Quote
Quote
And be aware, like most BMW engines, the heads are prone to cracking/warping through overheating, so don't let it go above 100C on the gauge...

how should the said grease monkey check for a cracked/warped head on the bmw lump??????

thanks kb
Pressure test, or check for fumes in coolant...
Title: Re: 2.5 TD water pump failure???
Post by: kbou55 on 10 January 2008, 21:31:25
Quote
Quote
Quote
And be aware, like most BMW engines, the heads are prone to cracking/warping through overheating, so don't let it go above 100C on the gauge...

how should the said grease monkey check for a cracked/warped head on the bmw lump??????

thanks kb
Pressure test, or check for fumes in coolant...

ill tell him to pressure test it, no fumes in the coolant so im half way there :y :y, any difficulty doing a pressure test on the lump???? or is it over complicated like it usually is
Title: Re: 2.5 TD water pump failure???
Post by: TheBoy on 10 January 2008, 21:49:13
if not fumes in coolant, I'd simply see how it goes.....
Title: Re: 2.5 TD water pump failure???
Post by: kbou55 on 10 January 2008, 22:17:05
Quote
if not fumes in coolant, I'd simply see how it goes.....

god bless the monkey, he said the water pump was shredded and a part of the impellor had lodged in the thermostat and damaged it aswell.  :-[ :-[

anyway, it could have been worse, many thanks for the support lads. the wife just didnt understand my pain :-* :-*