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Forced Induction & Engine Management
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<blockquote data-quote="Turbomaster1" data-source="post: 3638035" data-attributes="member: 43604"><p>first issue.....cyllinder compression.....</p><p>u mentioned ur compression for all cylinders are the same and ok....how much?.....</p><p>if some oil leaks through the rings, it might seal off the damaged ring area and ur compression might go up.........so the best way is to inspect the rings and cylinder wall......</p><p>anyway wat engine are u using?.....if it is a l200 or l500, u should use 10w-30, mitsubishi 10w 40....nissan 15w-50.....</p><p></p><p>second....water level drop.....</p><p>if u have to top up always that means there is a leak prob.......do a pressure test......see if there is anyleak....if no... check ur radiator cap....if water / coolant flow out too much at normal operating temp.....ur rad cap should be stuck open.......otherwise water wont just leak out from ur spare tank.......unless u overfill ........</p><p></p><p>Bump: </p><p></p><p></p><p>1) oil level drop</p><p>if compression is par to specs does not mean ur rings are ok....it might be ur oil control rings.... not the compression rings......oil that goes in the combustion chamber might seal off the worn ring area....thats why u r achieving good compression......</p><p>about the type of oil.....i dunno wat engine u using.....so generally.....daihatsu 10w-30, mitsubishi 10w-40, nissan/ toyota 15w-50......</p><p>if there alot of air or gas coming out from the breather nozzle, that means there is blow by from ur cylinders.....this can cause oil level drop</p><p></p><p>2)water level drop..</p><p>you mentioned water leaks out from spare tank....might be overfill but it might be ur radiator cap stuck open.......check for anysigns of leak as welll....anywhere... do a pressure test....</p></blockquote><p></p>
[QUOTE="Turbomaster1, post: 3638035, member: 43604"] first issue.....cyllinder compression..... u mentioned ur compression for all cylinders are the same and ok....how much?..... if some oil leaks through the rings, it might seal off the damaged ring area and ur compression might go up.........so the best way is to inspect the rings and cylinder wall...... anyway wat engine are u using?.....if it is a l200 or l500, u should use 10w-30, mitsubishi 10w 40....nissan 15w-50..... second....water level drop..... if u have to top up always that means there is a leak prob.......do a pressure test......see if there is anyleak....if no... check ur radiator cap....if water / coolant flow out too much at normal operating temp.....ur rad cap should be stuck open.......otherwise water wont just leak out from ur spare tank.......unless u overfill ........ Bump: 1) oil level drop if compression is par to specs does not mean ur rings are ok....it might be ur oil control rings.... not the compression rings......oil that goes in the combustion chamber might seal off the worn ring area....thats why u r achieving good compression...... about the type of oil.....i dunno wat engine u using.....so generally.....daihatsu 10w-30, mitsubishi 10w-40, nissan/ toyota 15w-50...... if there alot of air or gas coming out from the breather nozzle, that means there is blow by from ur cylinders.....this can cause oil level drop 2)water level drop.. you mentioned water leaks out from spare tank....might be overfill but it might be ur radiator cap stuck open.......check for anysigns of leak as welll....anywhere... do a pressure test.... [/QUOTE]
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