Chippz Neutral Newbie January 26, 2004 Author Share January 26, 2004 exhaust smoke...will check it out.. thanks bro.. ↡ Advertisement Link to post Share on other sites More sharing options...
Saaber Neutral Newbie January 26, 2004 Share January 26, 2004 that time u told me i already fixed liao... how to know whether is the piston ring...any signs? do a compression test...but then check for oil leak at the bottom first... Link to post Share on other sites More sharing options...
Vtim 3rd Gear January 26, 2004 Share January 26, 2004 only possibility, oil leaking out or into the combustion chamber Link to post Share on other sites More sharing options...
Yeobh 4th Gear January 26, 2004 Share January 26, 2004 A piston carry two to three compression rings and one or more scraper ring. The compression rings when under compression pressure will expanse and form a very tight seal. The whole idea is to have best possible compression. The scrap ring will works during the piston downward strokes - its job is to scrap all the excess engine oil and allow them to drop into the oil pan.If the scraper ring is unable to function properly, the excess oil on the cylinder wall will be burnt during power stroke - the end result you will have slight blue smoke coming out from the tail pipe. Once the compression rings wear off, the piston will loose is stability and during power strokes the combustion force will cause the piston to "slap" very hard against the cylinder wall. Overtime there will be excess wear and tear on the cylinder wall, loose of compression thereby allowing combustion gases to escape into the oil pan which in turns will contaminate the engine oil. Link to post Share on other sites More sharing options...
Hitman Neutral Newbie January 26, 2004 Share January 26, 2004 what cuases the piston to wear out? Basic wear and tear Link to post Share on other sites More sharing options...
Epsilon 2nd Gear January 26, 2004 Share January 26, 2004 thanks....... Link to post Share on other sites More sharing options...
Hitman Neutral Newbie January 26, 2004 Share January 26, 2004 No problemo Link to post Share on other sites More sharing options...
Orangie Neutral Newbie January 27, 2004 Share January 27, 2004 Link to post Share on other sites More sharing options...
Chippz Neutral Newbie January 27, 2004 Author Share January 27, 2004 that time u told me i already fixed liao... how to know whether is the piston ring...any signs? do a compression test...but then check for oil leak at the bottom first... this morning when i check, got a corner of the cam cover seems moist with oil... wonder could that be the leak? Link to post Share on other sites More sharing options...
Chippz Neutral Newbie January 27, 2004 Author Share January 27, 2004 would there be any signs to tell that the leak is in the combustion chamber besides the engine oil reduce? Link to post Share on other sites More sharing options...
Chippz Neutral Newbie January 27, 2004 Author Share January 27, 2004 yest top up engine oil...this morning still full. will continue to monitor... Link to post Share on other sites More sharing options...
Orangie Neutral Newbie January 27, 2004 Share January 27, 2004 Check the ground for oil stain/patch? Link to post Share on other sites More sharing options...
Vtim 3rd Gear January 27, 2004 Share January 27, 2004 yes, blue smoke coming out of tail pipe, there is another possibilty, does the engine oil cap fits properly or not Link to post Share on other sites More sharing options...
Yeobh 4th Gear January 27, 2004 Share January 27, 2004 One simple way to check for combustion gas and oil leak via cylinder head gasket - open radiator cap (to be safe do it when the engine is not running and at cold stage )inspect for oil stain. Run engine, allow the coolant to warm up - inspect for oil stain and presence of air bubbles. To get more combustion pressure to escape via the cylinder head gasket, increase engine speed ( beware of hot water splashing out ) Alternatively you can get your mechanics to do a combustion leak down test.The simple process is to introduce compressed air ( with a leak down tester) into the combsution chamber ( piston should be at compression stroke) and listen with a mechanics stethoscope for escaping air noise. If the noise is detected at the oil dip stick opening, it indicates the piston and rings are already wear out Hope this helps Link to post Share on other sites More sharing options...
Chippz Neutral Newbie January 27, 2004 Author Share January 27, 2004 bo leh... Link to post Share on other sites More sharing options...
Chippz Neutral Newbie January 27, 2004 Author Share January 27, 2004 oil cap ok leh... hmmm...will check on the blue smoke.. Link to post Share on other sites More sharing options...
Chippz Neutral Newbie January 27, 2004 Author Share January 27, 2004 thanks for the tip.. Link to post Share on other sites More sharing options...
Orangie Neutral Newbie January 27, 2004 Share January 27, 2004 May need top overhaul liao ↡ Advertisement Link to post Share on other sites More sharing options...
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