Hi, so I just rebuilt my 1hd-t engine completely because of bad compression and excessive blow by, everything brand new.
All the head was worked and all valves and valve guides were replaced with OEM.
Engine was std, so instead of oversizing the pistons the shop used new Cylinder Sleeves and I bought std forged pistons with OEM std rings.
The crankshaft was machined from std to .10 with with brand new bearings.
The engine has around 4000KMs, I just made a long trip (200KMs) and when I got home I noticed blowby from the breather then I opened the oil cap and found that the blow by was too much...
I have used DELO 400 LE 15w40, with change intervals of 500KMs, 1500KMs, 3000KM, each of it with their respective oil filter change.
There is blow by only when the engine is hot, if I turn the car on when cold it does not presents any blow by. Any idea of what can be happening? Should I switch to 20w50?
Here is a video of it:
Rob.
All the head was worked and all valves and valve guides were replaced with OEM.
Engine was std, so instead of oversizing the pistons the shop used new Cylinder Sleeves and I bought std forged pistons with OEM std rings.
The crankshaft was machined from std to .10 with with brand new bearings.
The engine has around 4000KMs, I just made a long trip (200KMs) and when I got home I noticed blowby from the breather then I opened the oil cap and found that the blow by was too much...
I have used DELO 400 LE 15w40, with change intervals of 500KMs, 1500KMs, 3000KM, each of it with their respective oil filter change.
There is blow by only when the engine is hot, if I turn the car on when cold it does not presents any blow by. Any idea of what can be happening? Should I switch to 20w50?
Here is a video of it:
Rob.