Solid roller failed again

patrickt · #1 (**permalink**) 08-10-2010, 03:13 PM

Quote:

Originally Posted by madmaxx

Oil pressure is irrelevant.

Yep, pretty much... and it's not like you're hot idling at 15psi.

Oh wait, I'm hot idling at 15psi.... (which is puh-lenty).

RodKnock · #2 (**permalink**) 08-10-2010, 04:16 PM

Quote:

Originally Posted by patrickt

Oh wait, I'm hot idling at 15psi.... (which is puh-lenty).

That would worry the poop out of me, but that's me. I think the 2nd roll bar makes you worry less about everything.

patrickt · #3 (**permalink**) 08-10-2010, 04:22 PM

Quote:

Originally Posted by RodKnock

That would worry the poop out of me, but that's me. I think the 2nd roll bar makes you worry less about everything.

Every major FE builder is on record essentially saying FE oil pressure at idle is {almost} meaningless. I've posted several quotes before from builders, old FE mechanics, Ford shop manuals, etc. that anything over about 6 to 8 lbs. was fine back "in the day." So long as it comes right up with the throttle, your pressure at idle doesn't really mean much with an FE.

RodKnock · #4 (**permalink**) 08-10-2010, 04:31 PM

Quote:

Originally Posted by patrickt

Every major FE builder is on record essentially saying FE oil pressure at idle is {almost} meaningless. I've posted several quotes before from builders, old FE mechanics, Ford shop manuals, etc. that anything over about 6 to 8 lbs. was fine back "in the day." So long as it comes right up with the throttle, your pressure at idle doesn't really mean much with an FE.

Yes, but you have old FE parts and I have new parts.

352? 428? 427? All?

Shouldn't that make a difference? For instance, the "priority main oiling" with the CSX block is more Chevy-like than Ford.

patrickt · #5 (**permalink**) 08-10-2010, 04:35 PM

All. The priority oiling doesn't matter; 428 or side oiler, or old 390 -- it doesn't matter. If you have the Chevy rods on your SCAT crank, still doesn't matter. If you've got double digit idling pressure and it goes immediately up when you blip the throttle then you're good to go.

RodKnock · #6 (**permalink**) 08-10-2010, 04:48 PM

Quote:

Originally Posted by patrickt

All. The priority oiling doesn't matter; 428 or side oiler, or old 390 -- it doesn't matter. If you have the Chevy rods on your SCAT crank, still doesn't matter. If you've got double digit idling pressure and it goes immediately up when you blip the throttle then you're good to go.

Well that's good to know. So my 9 psi at idle means I'm ready for a new Cammer!

madmaxx · #7 (**permalink**) 08-10-2010, 04:18 PM

I agree, as long as the oil makes it to the point of lubrication it is enough pressure. The pressure inside your main bearing reach 1000's of psig in the hydraulic wedge. In fact heavier oil usually causes less oil to get where it is needed. For example instead of flowing through the rocker arm bearings and valve stem orfice the thicker oil just overflows the rocker arm and drains into the head. Instead of the oil flowing through you roller bearings in your lifters it flows around etc.

It doesnt take much oil, look at your wheel bearings, There is zero oil circulation, only the oil in the grease lubricates for thousands of miles. Same with your alternator. You are much better off with lighter weight oil then heavier oil.

Quote:

Originally Posted by patrickt

Yep, pretty much... and it's not like you're hot idling at 15psi.

Oh wait, I'm hot idling at 15psi.... (which is puh-lenty).