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[Abiton]

Just trying to clarify so the OP doesn't buy the wrong one. 

Having said that, I'm surprised that the gauge sensor does anything but move the gauge needle, and maybe light up the overtemp led (is there one?).

I'd've thought it was the ECU temperature sensor that caused the relays to switch on fans (if that is ever done by anything but the thermoswitch(es) in the radiator?)?  :-/

Sorry I know nothing, it seems.  Too much wine, not enough sense.

[Marks DTM Calib]

The single terminal gauge sensor does nothing more than drive the gauge and the LED 

The fans are controlled by a set of thermal swicthes in the end of the rad.

The ECU has a further two pin sensor and is located next to the gauge one.

If the gauge sensor wire shorts to ground (note. not earth) then it will hit the top, so check the connector and wires to see if they are catching on anything metal or have worn through.

[Abiton]

Is the water pump definitely pumping water???

If it wasn't doing much, that might explain all of this mess?

 :-/

[griff2494]

how can i check if the water pump is pumping?

when i did the c am belt the pump seemed fine,spun smothly and no play

[Marks DTM Calib]

Did you remove the pump to check it or just spin it whilst it was in position.

The recommended is to ALWAYS replace the pump when doing the cambelt (which should also have the tensioner and idlers replaced at the same time).

I would be tempted to pull the pump (if it hasn't been done) and check it carefuly paying close attention to the impeller.

[Abiton]

how can i check if the water pump is pumping?
when i did the c am belt the pump seemed fine,spun smothly and no play

You should be able to see coolant spurting into the expansion tank from the thin hose that comes from the rad, with flow rate in proportion to revs.  I think.  If there's no flow or very little, that may indicate that the pump is'n't pumping (enough).

This may only work once the thermostat has started to open though, not sure.

[griff2494]

  i was going to change the water pump when i did the cam belt and tensiorns BUT i did not have enought £££££s  (if you all think that could be the prob i will get a new one as now i have just been paid)

like i said i did spin it and feel for any loose play(not sure if its ever been changed as got no docs ref cam belt or water pump,but it looks like new lol)

i will check tom how much coolant is getting pumped back into the header in ratio to revs,i no it def is pumping it in there but not sure if stronger with revs!

what would course the pump not to pump correctly? surely as long as its not leaking and its spinning without any play it can only pump as it should do??/ or do the fins in them break down?

anyway today i had planned to do all sorts to her! BUT it was not to be!!!! lol SODS LAW!!!!!!

first job was to do the exhaust (front pipe both joints!)
anyway the manifold side was easy ,the other end aaaarrrrrr
both bolts where bent!!! and snapped!!!! took me 2 hrs to drill the old ones out :-( anyway did that ,got it all back together and STILL BLOWING ITS ARSE OFF ON THE GASKET JOINING TO THE MANIFOLD (where it joins to the manifold) did it again and still the same :-( my own fault as i reused the old gasket so tommorrow i will have to get a new metal gasket for it!

then while driving off the ramps i scraped the bottom of the front end on the way down :-(

next was dropping the oil oil (the one from the hgf)i thre 1/2 a can of engine flush in with it,had it on idle for ten mins then TRIED TO DROP IT!!!!!!

could not beleave it!!! the oil plug was on so tight! i had to use my large torqeux wrench to shift it!!! it was set to 50nm and still clicked while undoing the bolt,anyway got that got and MY GOD THE STATE OF THE OIL!!!!!!!!!


ive got a new oil filter,and some top quailty oil BUT ive left the old filter on,put some cheap oil and some more engine flush in with it,i will start her tommorrow ,let her idle for 20mins then drop her again that way hopefully it should get all the crap out of the engine before i replace the oil filter and refill with good quailty oil :-)

[griff2494]

right you all had me thinking all night!
so got up at 0600 this morning and ordered a new waterpump!!!! (one good thing about germany is the local car shop opens at 0600 !!!!! )
will be here at midday as they had to order it me,cost 64 euros so around £55 ,checked on ebay and yes there cheaper there but by the time i got it here with postage 1 i would be back at work and 2 it would of cost me £14 postage

just hope this solves prob,but like u all said i should have changed it when i changed the cam belt and tenssioners ,either way at least i no it will have been done,and should only take 1hr to change seeing i no all bolts are nice and new so no seized

[griff2494]

 

WELL I FEEL A idiot NOW LOL YOU WHERE ALL RIGHT !!!

I GOT THE NEW WATER PUMP TODAY !!!!& :-(
heres the old one9i had tried the baring and it was fine ,but when i took the old one out :-(
as u can se looks fine

PMSL
then you look at the other side 

all the fu...ng fines are missing!!!!!!!!!!!!!!!
that def explains all the probs ive been having!!!!!!! def not a knackered temp gauge when it said it was hot it WAS!!!

thing is why has it done this???i spent 2 hrs taking all the pipes off looking for the fines,there should be 6 but i only found 3 :-( dont no where they are but there not in the pipes,rad or the head enless there in the block?,ive pumped as much high preasure water throwe it as i can but cant fined the other 3 fines 

so anyway thought that was bad ANTILL I TRied to refit thE CAM BElt!!!! its a new belt kit with pulleys and tenisner,but when trying to refit the oppsing tensior broke!!!!!!! i think this car it the devil!!!!!!!!!!!

ordered another one that hopefully will be here tom,but at least ive def found the route to all my problems!!! hopefully that will be it and i can have years of lovely driving of the omega once the cam belts back on :-)

IM SURE TIME WILL TELL!!!!!!!!

[Abiton]

"Why has it done this?"

My best guess would be that you had a freeze-up at some point and that was trying to pump ice/slush, which it isn't going to do well at.

Sorry to hear about the tensioner, you are indeed having a run of bad luck.

As you say, should be getting better very soon. 

[griff2494]

i so so so hope so!!!!
like i said before had a 1998 omega and that was fantasic!!! never had a prob and was the nicesst car ive ever drove!! but i did pay a lot of money for that one,this one i new it had probs thats why it was so cheap !(but its def more tasking than i first thought lol) but hopefully once sorted i will get 1000ssssss of trouble free motoring :-) time will tell

BUT IF IM HONEST I LOVE MESSING AROUND WITH CARS :-) IT CHILLES ME OUT,much less stressfull than my everyday job lol,when im not doing the omega on days off im doing this
http://www.16vminiclub.com/forums/showthread.php?t=6478
not touched her for aqbout 2 mnths as when not at work ive been playing with the omega!!! the omega is the wifes car so have to keep her happy pmsl she lets me have the money to spend on my toy :-) the mini!!! 167bhp in a car that weights 459kg :-)

[griff2494]

i feel such a idiot now!! if only i had not tried to save ££££s(well if i had the ££££s weeks ago pmsl) it would have been sorted weeks ago lol

[Shackeng]

That impeller, or what's left of it, looks very like the OE BMW one that I took off my car. I hope that your new one is a bit more robust.

[jonnycool]

Bloody hell mate, an Omega with problems AND a Mini! You're a glutton for punishment 
I'd have given up a long time ago, I admire your patience and never-say-die attitude, I've been reading this for ages wondering what the hell else could go wrong, I really hope everything goes smoothly for you from now on and you can start to enjoy owning your car 


But I won't hold my breath

[griff2494]

lol i can def say the MINI has coursed me many more probs up to now lol (but thats all the fun of it,and she is dame fast lol)

as for the new water pump,YES the fans on it look about 3 times thicker than on the old one,hopefully they will not fall off lol