Tony's 09 Thread
turning u inside out
Joined: Oct 2003
Posts: 2,545
Likes: 0
From: cortland, ohio
i still cant believe you were running 20w50.
i would stick wit ha 30 weight oil. i found a section in one of my text books that deals with hydrostatic bearings. 20w50 has a WAY to high of viscosity.
ill have to bring you the book so you can check it out.
and being that your tolerances were so tight, when the rod was being pushed up and down, the boundary layer between the oil and the bearing can only compress so much until the remaining force is exerted onto the bearing.
think of it like this, if you put a piece of glass on a 45 degree angle and dump alcohol down it, the layer of alcohol would be very small, where as if you were to pour honey down that same pane of glass, you could probably measure the thickness with ruler.
the same thing applies to the layer of oil between your bearing and journal. i am willing to bet if you ran 5w30 the bearings would have gotten alot more life in them.
diesel trucks use 15w40 and they run very loose tolerance and spin at a low rpm. reving out to almost 10k with a tightly toleranced honda motor is going to need a to keep a lighter weight oil.
i would stick wit ha 30 weight oil. i found a section in one of my text books that deals with hydrostatic bearings. 20w50 has a WAY to high of viscosity.
ill have to bring you the book so you can check it out.
and being that your tolerances were so tight, when the rod was being pushed up and down, the boundary layer between the oil and the bearing can only compress so much until the remaining force is exerted onto the bearing.
think of it like this, if you put a piece of glass on a 45 degree angle and dump alcohol down it, the layer of alcohol would be very small, where as if you were to pour honey down that same pane of glass, you could probably measure the thickness with ruler.
the same thing applies to the layer of oil between your bearing and journal. i am willing to bet if you ran 5w30 the bearings would have gotten alot more life in them.
diesel trucks use 15w40 and they run very loose tolerance and spin at a low rpm. reving out to almost 10k with a tightly toleranced honda motor is going to need a to keep a lighter weight oil.
warm butter on toast
Joined: Jan 2005
Posts: 6,485
Likes: 0
From: The boonies, CT
Looking good as usual Tony! My Honda's been gone for almost a year now.. BUT the kid I sold it to still drives it and it has about 13k miles on it using OEM rings and bearings. And it's an LSVTEC I think it's running 16psi out of a 60/63 now. Well built motors can last a long time guys they can just be finicky... anything can cause the motor to fail. I had a fully built B16 that lasted 5k miles because the spiral lock on a wristpin came out, the wristpin gouged a cylinder causing massive blowby and I ran the motor out of oil on the hgihway.
As for what I'm doing right now. I'm pulling the 2.7 out of my e30 325 and putting in my 1JZ soon. I'm keeping the Megasquirt and HX40 holest on the 1JZ. No pics on the laptop I fail.
As for what I'm doing right now. I'm pulling the 2.7 out of my e30 325 and putting in my 1JZ soon. I'm keeping the Megasquirt and HX40 holest on the 1JZ. No pics on the laptop I fail.