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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » 20XE - knocking sound from cam cover when over 2000 rpm


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Author 20XE - knocking sound from cam cover when over 2000 rpm
willay
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11th May 06 at 09:02   View Garage View User's Profile U2U Member Reply With Quote
Like the top says, knocking sound from the left side of the cam cover (when looking at the engine)

Only happens when revving it over 2K, seems to idle ok, cant really say the performance has been retarded but soon as the noise 'developed' I didn't really give the car any stick.

Oil is at a nice level.
VegasPhil
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11th May 06 at 09:09   View Garage View User's Profile U2U Member Reply With Quote
Cam Belt end? Tensioner or Water Pump possibly?

Corsa 2.0 16v Vegas - Sold
Rileysport
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11th May 06 at 09:26   View User's Profile U2U Member Reply With Quote
its the lightening cog... common problem


seriously though sounds like waterpump, etc... oil pressure OK ????
willay
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11th May 06 at 09:33   View Garage View User's Profile U2U Member Reply With Quote
no oil pressure light yet, goes out pretty quicky once the car is turned over.
Rileysport
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11th May 06 at 09:38   View User's Profile U2U Member Reply With Quote
Get a gauge on man
3CorsaMeal
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11th May 06 at 11:34   View User's Profile U2U Member Reply With Quote
i was gonna say water pump too
willay
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11th May 06 at 13:16   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Rileysport
Get a gauge on man


how ?
Rileysport
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11th May 06 at 13:16   View User's Profile U2U Member Reply With Quote
look in my garage
willay
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11th May 06 at 14:48   View Garage View User's Profile U2U Member Reply With Quote
doesnt explain much... :S
Marc
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11th May 06 at 14:52   View User's Profile U2U Member Reply With Quote
Something not aligned properly???
willay
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12th May 06 at 10:13   View Garage View User's Profile U2U Member Reply With Quote
alternator belt was abit loose so I pushed it further up the bracket and tightend it abit more... still makes the noise

hopefully someone is coming over tonight to look at it, being carless sucks!
willay
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13th May 06 at 10:43   View Garage View User's Profile U2U Member Reply With Quote
someone in the know came round for alook... said its more then likely cam followers. Trying some cleaner first to see if I can get away with a £5 fix and if that doesnt do it then I shall be looking at replacing them.

The search for prices begins
willay
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13th May 06 at 10:56   View Garage View User's Profile U2U Member Reply With Quote
£168 from autovaux. Best price so far
willay
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13th May 06 at 17:25   View Garage View User's Profile U2U Member Reply With Quote
HORRAH, oil change and shoved some funky WINS stuff in it. Took for a wee thrash after letting it idle for infinity. Now makes a noise on idle ! Will see tomorrow morning what its like from cold
Adam_B
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13th May 06 at 18:11   View User's Profile U2U Member Reply With Quote
before you go spending £168 on new lifters try changing this spring in the oil pump -



mine used to tap like crazy for about 10-15 mins from cold, changed that spring and its all of about 3 seconds of tapping in a morning now.
Adam_B
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13th May 06 at 18:11   View User's Profile U2U Member Reply With Quote
its about £2 from vauxhall, more info here-

http://www.max-boost.co.uk/max-boost/Gotchas_LET.htm#LOP

[Edited on 13-05-2006 by Adam_B]
willay
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14th May 06 at 09:55   View Garage View User's Profile U2U Member Reply With Quote
hmmm... mine is excessively thumping though.
willay
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14th May 06 at 17:28   View Garage View User's Profile U2U Member Reply With Quote
woo sounds realllllllly bad now

Scared to drive it
deanmcreynolds26
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14th May 06 at 18:43   View User's Profile U2U Member Reply With Quote
sure its the top end and not the botom end mmmm
willay
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14th May 06 at 20:29   View Garage View User's Profile U2U Member Reply With Quote
bottom end has quite a few bits replaced, the head was pretty much left alone apart from being sleaved.

the person who has diagnosed the problem is typically someone who knows what they are on about with the engine.

I've had a few other people say it sounds top head and could be the lifters, Lee Mitchell might even pop round soon to have a butchers.

Either way, got a good price on the lifters and will be getting them replaced...
carnoisseurcraig
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16th May 06 at 18:09   View User's Profile U2U Member Reply With Quote
sounds like big ends mate.....

willay
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23rd May 06 at 16:23   View Garage View User's Profile U2U Member Reply With Quote
OKAY!

The tappets were replaced and the noise was still going.

Sump was whipped off and everythnig looked hunky doory down there.

The pump was checked out and it looked blinging.

So we are now in a situation where the head may be coming off... Mr Mitchell and his big juicy brain think it could well be a valve thats fucked
willay
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24th May 06 at 09:45   View Garage View User's Profile U2U Member Reply With Quote
Also had a compression test, had roughly 230 psi (average) per cyl
ed
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24th May 06 at 10:53   View User's Profile U2U Member Reply With Quote
Is it a tapping noise or is it a rattle that happens now and then?
willay
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24th May 06 at 11:47   View Garage View User's Profile U2U Member Reply With Quote
it was a THUMPing sound...

I've just had a call back to say the thumping has stoped as he tried to start the car but nothing happened...

so he took out the crank sensor and found that it was smashed up to fuck ... hes replaced that and it starts up fine.. what the fuck touched up the crank sensor.

[Edited on 24-05-2006 by willay]

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