Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: rpmmatt on 23 January 2007, 18:19:21
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Hi,
I think my 2.5V6 (after 187000 miles) has got a terminal problem...
First I got a strange rubbing noise, was told its the cambelt tentioners so its booked in for this. Then it started making a clunking/tapping/knocking noise. Looking at the front of the engine, the big pulley wheel in the middle(crank shaft pulley??? I'm not a mechanic.) just under the cover for the cam belt. Every time the the engine knocks/clunks/taps, the pulley wheel jumps forward and twists to the right(towards the left of car) so I am assuming something in the engine has gone badly wrong????? This inly seems to hapen badly at low revs, is not as bad at high revs.
Other than this and the other symptoms below the car runs fine, idles fine, no rough running, no loss of power, no warning lights, will still hit top speed(almost) and accelrates like it should.
The car was only a ebay shed for work, so wont cry if its a dead loss.
Other problems
She has a bad oil leak underneath somewhere, about 3 litres per 1000 miles but i never let it get low and always top it up.
Using coolant without a leak.. Mabey a dodgy head gasket??? Coolant topped up every 3 weeks
Slipping clutch.. engine speed goes up road speed doesnt, worst in 4th gear up hills.
Was booked in to get the cam belt tentioners done end of next week.
Any thoughts would be appreciated,
Thanks in advance
Matt
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sounds like the water pump to me, seem to remember that's in the middle (above the crank pulley), it's not driven by the timing belt but you need to remove most of the same bits to get to it, plus if it goes it's not unheard of for debris to get into the timing belt and throw that too - which means bye-bye engine!
Could also explain the coolant loss ...
personally I'd be getting the cambelt, tensioners and water pump changed asap - and be wary of using it any more in the meantime !!!
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Far worse....sounds like the crank pulley outer is parting company with the inner (there is a rubber coupling between the two).
Is it the lowest pulley in the middle?, if yes then its that!
Dont run it in this condition!
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Hi, if you go this post http://www.omegaowners.com/forum/YaBB.pl?num=1169504175 and look at the picture of the engine. The pulley would be on the sticky out bit that has had its pully wheel removed Its the first wheel dead center just under all the plastic trim bits that cover the cambelt pulleys. If that is the water pump it may explain it all, the noise sounds like something stuck inside rattling, mabey the remains of broken impellers. May also explain an overheating problems I've been having, altough those have dissipeared latley.
The pulley wheel is the one with 4 little bolts and one big bolt/nut in the middle. if its that its proably worth fixing.
Thanks
Matt
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Hi, if you go this post http://www.omegaowners.com/forum/YaBB.pl?num=1169504175 and look at the picture of the engine. The pulley would be on the sticky out bit that has had its pully wheel removed
Thats the water pump.
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Now I know what to fix,
Thanks a lot
Matt
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If it is the waterpump Timbuk & myself managed to change mine without removing the cambelt cover & other pulleys....
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If it is the waterpump Timbuk & myself managed to change mine without removing the cambelt cover & other pulleys....
Possible, but probably easier to remove... ...also, and get something in there to guide the coolant away from cambelt...