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Author Topic: tappy engine  (Read 3878 times)

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garyv6

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tappy engine
« on: 21 October 2007, 18:32:04 »
hello all! when my omega is idleing the engine has a loud tapping sound and the same when i drive her its like a click click click tappety sound if you know what i mean and it gets louder and faster as i drive.  could this be a valve problem i wonder? its a 2.5 v6 unit.  any ideas please.  cheers gary.....
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Elite Pete

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Re: tappy engine
« Reply #1 on: 21 October 2007, 19:15:00 »
Hi Gary

Is the noise permanent or does it clear when the engine gets warmer?
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garyv6

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Re: tappy engine
« Reply #2 on: 21 October 2007, 19:22:33 »
its permanant mate. i think it possibly gets louder as she gets hotter.
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madmax

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Re: tappy engine
« Reply #3 on: 21 October 2007, 19:38:45 »
dont know if its the same problem i had recently but it could be waterpump quite noisey when it goes.....
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JamesV6CDX

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Re: tappy engine
« Reply #4 on: 21 October 2007, 19:43:50 »
As said, you first need to check whether or not it's an ancilliary, such as a pump making a noise

If it IS a lifter (no such thing as tappets on this engine), I would do an oil and filter change with Vauxhall 10/40 semi synthetic, and see how it goes. Do a few changes if the oil is dirty, maybe 200 miles apart until the oil stays clean.

Failing that, out with the lifters!!
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garyv6

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Re: tappy engine
« Reply #5 on: 21 October 2007, 19:51:58 »
the noise seems to be coming from the top of the engine. it is running hot too. when i get stuck in traffic the stat goes near 100 and when i drive it goes back down to 90 or a little above. its the first omega ive owned so ive got a lot to learn about this v6 unit.
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ffcgary1

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Re: tappy engine
« Reply #6 on: 21 October 2007, 21:39:54 »
It could be a very noisey fuel injector, what fuel do you use? i did use the cheaper brands of petrol but after several tank fulls of bp the injectors have quitetend down lot as the branded fuel has detergent in it. :y
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ffcgary1

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Re: tappy engine
« Reply #7 on: 21 October 2007, 21:43:34 »
Also  as james has said try changing the oil as old oil will thin down as the motor gets hot. Fresh clean oil will help softn the noise from the lifters as well. :y
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garyv6

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Re: tappy engine
« Reply #8 on: 21 October 2007, 22:16:57 »
thanks for the feedback lads! i will try a service and engine flush and see what happens! watch this space! cheers  gary
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TheBoy

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Re: tappy engine
« Reply #9 on: 21 October 2007, 22:26:31 »
Need to check why its getting to 100C - thats way too hot...
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garyv6

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Re: tappy engine
« Reply #10 on: 22 October 2007, 17:16:15 »
any ideas why it could be running hot like this?
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ffcgary1

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Re: tappy engine
« Reply #11 on: 22 October 2007, 17:25:00 »
Does it get to 100 or near and then the fan cuts in to bring it back to 95. Have you got any coolant leaks, esp the coolant bottle as they crack around the filler cap or signs of coolant loss.?
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garyv6

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Re: tappy engine
« Reply #12 on: 22 October 2007, 19:54:13 »
no coolant loss and ive just put a new rad on it and fresh coolant! not sure when the fan cuts in but when i drive it drops to normal very quickly! while im on this subject, the rad i put on was a little different to the original on the car. it was basically identical but the one i put on had two gold pipes on it and the old one didnt so i just joined the pipes together with a rubber hose! im guessing this rad was off a higher spec model (eg, duel climate) could this be the problem maybe?
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TheBoy

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Re: tappy engine
« Reply #13 on: 22 October 2007, 19:57:27 »
Quote
no coolant loss and ive just put a new rad on it and fresh coolant! not sure when the fan cuts in but when i drive it drops to normal very quickly! while im on this subject, the rad i put on was a little different to the original on the car. it was basically identical but the one i put on had two gold pipes on it and the old one didnt so i just joined the pipes together with a rubber hose! im guessing this rad was off a higher spec model (eg, duel climate) could this be the problem maybe?
The new one is off an auto, thats all, and that is the gearbox cooler bit.

Are the low speed fans kicking in just about midpoint on gauge?
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garyv6

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Re: tappy engine
« Reply #14 on: 22 October 2007, 20:08:02 »
mine is an auto, the rad i took off didnt have the pipes? when i fitted the rad i let the car idle to temp and all three fans cut in at just below 100 i think!
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