signs of loose compression

[mang_jose]

Guys,

Ano ba ang signs ng loose compression?

TIA

[yebo]

with engine cold, open the oil filler cap and start the engine. cover the oil filler hole with your palm. there should be very little pressure, if any. if there is pressure then that is a sure sign of blow-by. also if you can see an oil mist being blown out of the oil filler hole then that is also another sure sign of blow-by. of course to confirm you'll need to do a compression test.

[erj22]

pag malala na yan, yung oil dip stick tatalsik pag ni-rev mo ng ni-rev...

[EE100shiro]

mahina hatak

[holdencaulfield]

maki ride ts: yung dip stick tube ko may tumitilamsik na langis, umaagos na nga sa sides. pero sa oil filler hole minimal (maybe caused by the vibration of my diesel engine?) at hiniihigop pa yung palm ko? ano kaya ito? and nagtataka ako since nagpa-change oil ako hindi nababawasan yung langis, parang nadaragdagan pa nga? fuel efficient pa naman at yung hatak minsan ok minsan hirap.
dinala ko na ito sa reputable shops na mentioned dito sa tsikot. hati yung assessment, ok to normal pa daw, nag-mention pa ng mga rides na dinadala rin sa kanila na same case ko. yung ibang shop sabi blow-by na? confusing... inputs baman mga kapatid! salamat ng marami!

[yebo]

maki ride ts: yung dip stick tube ko may tumitilamsik na langis, umaagos na nga sa sides. pero sa oil filler hole minimal (maybe caused by the vibration of my diesel engine?) at hiniihigop pa yung palm ko? ano kaya ito? and nagtataka ako since nagpa-change oil ako hindi nababawasan yung langis, parang nadaragdagan pa nga? fuel efficient pa naman at yung hatak minsan ok minsan hirap.
dinala ko na ito sa reputable shops na mentioned dito sa tsikot. hati yung assessment, ok to normal pa daw, nag-mention pa ng mga rides na dinadala rin sa kanila na same case ko. yung ibang shop sabi blow-by na? confusing... inputs baman mga kapatid! salamat ng marami!

di kaya too much oil? tinatamaan ng crankshaft yung oil so nagfro-froth at lumalabas sa oil dip stick. ito rin ang pwedeng cause bakit tumataas level ng oil kasi madaming bubbles. kung since last oil change lang yan this might be the case.

[holdencaulfield]

di kaya too much oil? tinatamaan ng crankshaft yung oil so nagfro-froth at lumalabas sa oil dip stick. ito rin ang pwedeng cause bakit tumataas level ng oil kasi madaming bubbles. kung since last oil change lang yan this might be the case.

oh lord, sana nga! i forgot to mention that there is light white smoke coming out from the tube. not apparent though, but adds up to my worries. thanks yebo!