Engine Oil Leak Classified as 2 Section
Leaking , Or Comsume into Piston .
Leaking
1. Firstly to check is whether there's Engine oil Stain at Bottom of engine (aka Oil Sump) , place where engine oil keep inside . If it's Terribly Wet , means there's Serious Leak. Or you can Put a Newspaper / cardboard at bottom of your car . But this Not applicable for Small Leak , hard to be seen.
2. Next is to Check Which part Have the leaking . Classified to 2 parts . Upper part and Bottom Parts.
Upper parts :
i) Valve Cover Seal (aka Cylinder head cover Seal)
ii) Distributor o-Ring (Applicable Old model car that uses Standalone Distributor Coil)
iii) Cylinder Head Gasket
iv) Engine oil Switch o-Ring
v) Timing Belt Oil Seal
Lower Parts :
i) Oil Sump Seal
ii) FlyWheel Oil Seal (this is the most Complicated Job to Change the Oil Seal)
iii) Timing Belt CrankShaft Oil Seal
iv) Engine Oil Hoses (if any)
For Upper parts , Job can be done by Top Overhauling , Top Set Overhaul kit can be done.
For Lower parts , the most complicated job would be FlyWheel Oil Seal . Some car need to Take out WHOLE set gearbox , flywheel , Drift Shaft . Some Take OUt Engine , Some take OUT Whole engine + Gearbox
Wira = Gearbox
Naza Ria - Engine
Perodua Kancil , kenari , kelisa - Whole engine + gearbox take out
so dont Feel shocked when changing this oil seal, the oil seal ONLY Costs 30-50 , workmanship might be 500-1000 depends
Now for the Engine Oil CONSUME Part.
But Firstly , To comfirm your Engine oil goes in piston , Open your Plug and check it . if its full with Engine oil = Consuming Engine oil
Or , Rev your engine 6-7k RPM . White Smoke would appear
Or , check ur Exhaust tail pipe Muffler . Serious leak might get ur exhaust pipe FULL with Engine oil Stain .
Why could this happen ? Classified as 3 Type
1. Valve Seal (IF Minor White Smoke During Cold Start , Disappear on Hot temp means valve seal getting Hard . but if valve seal 100% hard , u will get white smoke all the time)
2. Piston Ring .
during engine Start , open Engine oil cap , notice the smoke comes out . if there's large smoke = worn piston ring
IF Large Smoke Comes out through engine oil Cap , Be AWARE . your Air Filter , Throttle Body and Intake Manifold might Flood with Engine oil Stain
Why ? Because Engine Vapour goes through by a Breathe Hose (aka Crank Case Vent Hose), that Connect From Engine Cover Towards Air Filter Pipe Hose.
This is Why OIL Catch TANK Comes in . But Actually just left the Hose atmosphere would be ok .
Try unplug and see whether Smoke come out from the hose .
** Attention : There's 2 Hose , dont get mis understand . Another Hose CONNECT To Intake Manifold . That HOSE CANNOT Be Unplug or else timing fly 2-2.5k for SURE. **
IF Cylinder Head Taken out , can try push the piston left and right when Cylinder head taken out . see if its fitting to engine Block or not .
Worn Block Liner might cause this issue as well. Need Rebore and new piston + Rings then .
3. Cylinder head Gasket Failure
Original Stock gasket made by Paper / carbon material , if its worn out , engine oil could break in piston.
but this issue might cause Lost compression as well (use a Compression Tester to Test this)
But Since if you done Valve Seal or Piston Ring Change , normally Cyl Head gasket MUST BE CHANGE As well.
UNLESS it is made of Steel , Like Honda , Campro engine etc .
For TURBO Car, Turbo oil leak is VERY Common. How to check ? Simple .
1. Turbo Piping .
Unplug any part of turbo piping and check oil stain .
Solution ? Change O-Ring and Shaft Seal inside TURBO
But Turbo Overhaul Not all mec Want to do it .
and the Kit very expensive , around 400-500
Unless u buy those cheap Kit , JASMA Brand . Like TD04 and TD05
this should be Details enuf for Engine Oil Leaks .
Hope it helps . Cheers ^^
Leaking , Or Comsume into Piston .
Leaking
1. Firstly to check is whether there's Engine oil Stain at Bottom of engine (aka Oil Sump) , place where engine oil keep inside . If it's Terribly Wet , means there's Serious Leak. Or you can Put a Newspaper / cardboard at bottom of your car . But this Not applicable for Small Leak , hard to be seen.
2. Next is to Check Which part Have the leaking . Classified to 2 parts . Upper part and Bottom Parts.
Upper parts :
i) Valve Cover Seal (aka Cylinder head cover Seal)
ii) Distributor o-Ring (Applicable Old model car that uses Standalone Distributor Coil)
iii) Cylinder Head Gasket
iv) Engine oil Switch o-Ring
v) Timing Belt Oil Seal
Lower Parts :
i) Oil Sump Seal
ii) FlyWheel Oil Seal (this is the most Complicated Job to Change the Oil Seal)
iii) Timing Belt CrankShaft Oil Seal
iv) Engine Oil Hoses (if any)
For Upper parts , Job can be done by Top Overhauling , Top Set Overhaul kit can be done.
For Lower parts , the most complicated job would be FlyWheel Oil Seal . Some car need to Take out WHOLE set gearbox , flywheel , Drift Shaft . Some Take OUt Engine , Some take OUT Whole engine + Gearbox
Wira = Gearbox
Naza Ria - Engine
Perodua Kancil , kenari , kelisa - Whole engine + gearbox take out
so dont Feel shocked when changing this oil seal, the oil seal ONLY Costs 30-50 , workmanship might be 500-1000 depends
Now for the Engine Oil CONSUME Part.
But Firstly , To comfirm your Engine oil goes in piston , Open your Plug and check it . if its full with Engine oil = Consuming Engine oil
Or , Rev your engine 6-7k RPM . White Smoke would appear
Or , check ur Exhaust tail pipe Muffler . Serious leak might get ur exhaust pipe FULL with Engine oil Stain .
Why could this happen ? Classified as 3 Type
1. Valve Seal (IF Minor White Smoke During Cold Start , Disappear on Hot temp means valve seal getting Hard . but if valve seal 100% hard , u will get white smoke all the time)
2. Piston Ring .
during engine Start , open Engine oil cap , notice the smoke comes out . if there's large smoke = worn piston ring
IF Large Smoke Comes out through engine oil Cap , Be AWARE . your Air Filter , Throttle Body and Intake Manifold might Flood with Engine oil Stain
Why ? Because Engine Vapour goes through by a Breathe Hose (aka Crank Case Vent Hose), that Connect From Engine Cover Towards Air Filter Pipe Hose.
This is Why OIL Catch TANK Comes in . But Actually just left the Hose atmosphere would be ok .
Try unplug and see whether Smoke come out from the hose .
** Attention : There's 2 Hose , dont get mis understand . Another Hose CONNECT To Intake Manifold . That HOSE CANNOT Be Unplug or else timing fly 2-2.5k for SURE. **
IF Cylinder Head Taken out , can try push the piston left and right when Cylinder head taken out . see if its fitting to engine Block or not .
Worn Block Liner might cause this issue as well. Need Rebore and new piston + Rings then .
3. Cylinder head Gasket Failure
Original Stock gasket made by Paper / carbon material , if its worn out , engine oil could break in piston.
but this issue might cause Lost compression as well (use a Compression Tester to Test this)
But Since if you done Valve Seal or Piston Ring Change , normally Cyl Head gasket MUST BE CHANGE As well.
UNLESS it is made of Steel , Like Honda , Campro engine etc .
For TURBO Car, Turbo oil leak is VERY Common. How to check ? Simple .
1. Turbo Piping .
Unplug any part of turbo piping and check oil stain .
Solution ? Change O-Ring and Shaft Seal inside TURBO
But Turbo Overhaul Not all mec Want to do it .
and the Kit very expensive , around 400-500
Unless u buy those cheap Kit , JASMA Brand . Like TD04 and TD05
this should be Details enuf for Engine Oil Leaks .
Hope it helps . Cheers ^^
