dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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was driving along today when i got a loss of power.
when i put my foot down theres a really loud knocking/tapping coming from the engine about say 3k.
still driveable but i duno if the top ends gone so it's going to get worse and i should get a new engine, or if i should get it looked at?
help really appreciated as its a really good car and i want to geddit fixed!
cheers 
[Edited on 16-04-2007 by dan_c4rsa]
[Edited on 17-04-2007 by dan_c4rsa]
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N3CRO
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Registered: 12th Apr 07
Location: Sandy, Bedfordshire
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I'd get it looked at dude.
That doesn't sound good.
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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theres no such thing as a 'top end gone'
its probably something simple, for example we recently had an evo4 in as it had loss of power and missfires, losing boost etc... other garages all said head gasket or piston rings....
after actually doing proper inspections and a compression test it turned out to be a dodgy spark plug electrode and cracked compression washer on the plug itself. £18 later, problem solved!
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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well what would make it have a very loud knock and be very very slow.
the knock only happens on extended revving/ accelerating in gear.
help would be much appreciated because if its fixabe for under 500 its sorted.
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scottc1088
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Registered: 7th Mar 05
Location: Chesterfield Drives: Corsa Gsi, Cbr600
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headgasket
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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no isnt the headgasket. no mayo or anything. how else could i know it's gone.
only other thing that i can tell is it may be burning oil
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Dave A
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Registered: 10th Dec 03
Location: County Durham
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get a compression test done asap
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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if it was misfiring would it knock/tap?
also would it be really slow if it was misfiring?
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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just gone out and listened to the engine.
the knocking is coming from the rear of the engine, sort of under the inlet manifold.
definatley isn't coming from valve/piston area.
ideas?
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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bumpety
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scottc1088
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Registered: 7th Mar 05
Location: Chesterfield Drives: Corsa Gsi, Cbr600
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quote:
Originally posted by dan_c4rsa
no isnt the headgasket. no mayo or anything. how else could i know it's gone.
only other thing that i can tell is it may be burning oil
could have gone between cylinders though, mine did the same and sound like something was rattling in the engine
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a4dy_1986
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Registered: 25th Oct 06
Location: Shaw, Greater Manchester
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it happened to me and it was that 2 of the rings had burnt out as there wasa contamination of some sort it cost £300 to fix
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valverguy
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Registered: 9th May 06
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cant believe no body has suggest your cams. if its coming from the top end and your losing power with a rattle that would be my first port of call.
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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just taken a video - and it is regular, but is coming from the middle, could be my cams i guess. i'll post up the link - not easy to reli tell but the knock is LOUD lol.
excuse the 8v 2 litre - tut these modern 16v's
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little_duke
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Registered: 21st Aug 06
Location: Tamworth,staffordshire Drives: rover coupe
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mine done this mate and it was my cambelt coming off the top wheel......it snapped in the end due to me not knowing what it was!!!!
get it checked i suggest mate
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
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nah first thing i checked was the cam belt, deffo not that. plus cambelts new. posting vid up in a sec
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dan_c4rsa
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Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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dan_c4rsa
Member
Registered: 12th Dec 06
Location: North Yorks Drives: MK3 Seat Cupra
User status: Offline
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the knocks not as clear now ive uploaded it but u get the idea i hope. is a really loud knock, can hear it outside the car when driving along.
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