oil pressure
Road Master
Joined: Aug 2008
Posts: 759
Likes: 75
From: Vegas Baby!!
oil light doesnt come on till 2 psig its and idiot light. You could be blasting down the interstate running 90 with 5psig of oil pressure and not know it.
You should concern yourself with a vital fluid pressure.
Do you get your bp checked? why the heart works on volume not pressure right....wrong.
You should concern yourself with a vital fluid pressure.
Do you get your bp checked? why the heart works on volume not pressure right....wrong.
Oh, yeah, and if I should change my fluids every 3k or 5k. But MOST of all, I have to decide on which cup holder to mount on my bike to hold my mocha-latte-chai-frappachino!!!!!! I really worry about that last thing.......BRING BACK KICK STARTERS!!!
General rule of thumb for oil PSI is 1 psi per 100 rpm, so at 800 rpm its still safe at 8psi.
2000 rpm, 20psi.
I see mine around 30-34 at 2500 rpm and around 11-14 at idle, Im using amsoil 20/50
2000 rpm, 20psi.
I see mine around 30-34 at 2500 rpm and around 11-14 at idle, Im using amsoil 20/50
Seasoned HDF Member
Joined: Aug 2007
Posts: 39,863
Likes: 2,121
From: Central, Ca.
A Babbitt bearing engine needs oil pressure to float the crank on a cushion of oil, all a roller and ball bearing engine needs is lubrication that's why lower oil pressure on a Harley is no big deal, different concept than car engines
Last edited by DPete; Jun 12, 2014 at 03:22 PM.
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,623
Likes: 6,442
From: Honah Lee
A Babbitt bearing engine needs oil pressure to float the crank on a cushion of oil is not really true since the bearings actually slide on a oil film. There is truly pressure applications but not in your typical car motors They actually need more pressure since the oil needs to travel thru the camshaft and crankshaft with many leaks out each bearing. As the bearings wears, the oil pressure will slowly fail, usually starving off the overhead cam shaft.
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