bazman
Member
Registered: 17th Jun 03
Location: Essex
User status: Offline
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Got a corsa B sri 8v, and last night it was making loud banging noises and then cutting out whenever i stopped, it lost all power and sounded like shit
does anyone know what might have gone wrong?
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J da Silva
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Registered: 10th Apr 03
Location: The FACTory
User status: Offline
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explain in a bit more detail please
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Meat-Pie-SRI
Member
Registered: 10th Apr 02
Location: Berkhamsted, Drives Mk4 R32
User status: Offline
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head gaskett
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PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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was it an explosive bang or metal-clank-bang?
headgasget if explosive, metal clank bang could be rod bolt
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jjcymru
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Registered: 28th May 02
Location: ammanford,south wales
User status: Offline
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failed plugs were causing this on my dads car
£10 for a set of 4 spark plugs later, problem solved.
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mike_1.2LS96
Member
Registered: 23rd Oct 03
Location: Darlington | Mazda 323 1.8 Exec
User status: Offline
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quote:
Originally posted by PaulW
was it an explosive bang or metal-clank-bang?
headgasget if explosive, metal clank bang could be rod bolt
Whats the visual signs tho. I have small (tiny) drops of oil coming from somewhere and resting on the flat part near the dipstick. 
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J da Silva
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Registered: 10th Apr 03
Location: The FACTory
User status: Offline
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maybe your top gasket rubber has split, they split quite easily
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J da Silva
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Registered: 10th Apr 03
Location: The FACTory
User status: Offline
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^^^^thats aimed at mike by the way
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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visual signs of headgasket could be...
creamy substance on oil cap
oil contamination in coolant
excessive loss of coolant, oil or both
as for rod bolt, small bits of metal may be in the oil, only minute amounts, but would be more noticeable by the sound & loss of power / big hole in side of block when it finally gives way completely
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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quote:
Originally posted by VenomTurbo
maybe your top gasket rubber has split, they split quite easily
could also be a cork gasket, more common on 1.2 8v's.
either replace the cork gasket, or get a new roker-cover from vaux or a scrappy for an 8v which takes rubber gaskets, they last much longer
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J da Silva
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Registered: 10th Apr 03
Location: The FACTory
User status: Offline
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might sound daft but tighten to headcasing on TOO tight can also bust them, happened so many times to me when the local garage trainee thinks 'holy pants, thats not tight enough, must tighten head ' 
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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plus the threads are soooo easy to fek up in the head & then you need to use a longer bolt - is never the same after you do that though!
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mike_1.2LS96
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Registered: 23rd Oct 03
Location: Darlington | Mazda 323 1.8 Exec
User status: Offline
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No I replaced the rocker cover gasket only a month ago. Not exactly sure about where this oil comes from. Its definetly from above the head-gasket level. There is no creamy stuff in oil cap, no loss of oil.
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J da Silva
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Registered: 10th Apr 03
Location: The FACTory
User status: Offline
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your best bet is to clean all oil thats spilled out onto your engine and components. and just keep an eye on the leak day by day, you'll eventually trace it to where its coming from
[Edited on 31-12-03 by VenomTurbo]
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mike_1.2LS96
Member
Registered: 23rd Oct 03
Location: Darlington | Mazda 323 1.8 Exec
User status: Offline
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Will do. I cleaned it a while back just to make certain it was leaking and not spilt oil.
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PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
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check the oil hose which goes to cam housing (looking at front from car, where dizzy is, back of cam housing, about 2 inches in from dizzy), its a real shitter of a hose, and a weak spot too, can become worn & leak
also check for leaks around the dizzy too, the o-ring used isn't really brilliant
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