waynep
Member
Registered: 20th Apr 02
Location: london
User status: Offline
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Cutting a long story short.
Ive re routed the standard breather to use an oil vapour catch tank, Its ment to collect the crap and oil moister gunk into the tank. BUT after 50 miles its decided to catch a litre or oil instead !!
The oil was literally spitting from the breather i have on the catch tank.
Any ideas?
No smoke or loss of performance so doubt its bottom end/rings.
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SportBoy
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Registered: 5th Oct 01
Location: Retford, Nottinghamshire
User status: Offline
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could try doing the breather mod on the cam cover too?
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waynep
Member
Registered: 20th Apr 02
Location: london
User status: Offline
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elaborate please?
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SportBoy
Member
Registered: 5th Oct 01
Location: Retford, Nottinghamshire
User status: Offline
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sry dude 
tell you all you need to know on there 
http://www.max-boost.co.uk/max-boost/cylhead/crank_ventilation.htm
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SportBoy
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Registered: 5th Oct 01
Location: Retford, Nottinghamshire
User status: Offline
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theres some stuff about it on migweb too but it can take some hunting down
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SportBoy
Member
Registered: 5th Oct 01
Location: Retford, Nottinghamshire
User status: Offline
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a pic of another one thats got it
remeber to take the plate off before you drill it .. if you do
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waynep
Member
Registered: 20th Apr 02
Location: london
User status: Offline
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yeah but i dont see why oil is coming thru rather than vapour?
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scottc1088
Member
Registered: 7th Mar 05
Location: Chesterfield Drives: Corsa Gsi, Cbr600
User status: Offline
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it gets forced up from the crankcase, usually caused by worn piston rings
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waynep
Member
Registered: 20th Apr 02
Location: london
User status: Offline
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i hope its not the rings, as i said there is no other signs of piston ring failure.. oil pressure is fine etc../
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scottc1088
Member
Registered: 7th Mar 05
Location: Chesterfield Drives: Corsa Gsi, Cbr600
User status: Offline
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not really a failure as such just getting worn, do the breather mod and itll be alright
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Dan A
Member
Registered: 16th Dec 05
Location: Wakefield, West Yorkshire
User status: Offline
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quote:
Originally posted by waynep
Cutting a long story short.
Ive re routed the standard breather to use an oil vapour catch tank, Its ment to collect the crap and oil moister gunk into the tank. BUT after 50 miles its decided to catch a litre or oil instead !!
The oil was literally spitting from the breather i have on the catch tank.
Any ideas?
No smoke or loss of performance so doubt its bottom end/rings.
Is your catch tank airtight?
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waynep
Member
Registered: 20th Apr 02
Location: london
User status: Offline
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well, compression test showed something bad, one cylinder was very low copaired to others.. so we think its the rings / piston in that cylinder.
Dipstick poped out earlier. so defo a compression issue bottom end.
new short engine time me thinks ???
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