Just wondering, why shouldn't you use a high volume oil pump in Cleveland's without oil system modifications?It may not be a bad time for a new oil pump, pick-up and drive rod. ALWAYS dry fit everything before you do the final install. You'll want to check for pick-up screen clearance...which is basically using silly putty on the bottom of the screen shield (NOT THE SCREEN ITSELF) and pressing the pan in place. Then you remove the pan to check your clearance.
Notes:
Don't use high volume or high pressure pumps in the Windsor or Cleveland without oil system modification. If you are lacking pressure and a new pump doesn't cure it, then you have other problems.
If you put the silly putty on the screen itself, it can and normally will, squeeze into the screen...game over.
good idea. And don't forget to prime the pump.It may not be a bad time for a new oil pump, ........
Here is a link to a reputable magazine that suggests 31/48", or .645". http://www.mustangandfords.com/techarticles/engine/mufp_0610_engine_building_mistakes/viewall.htmlHow much clearance should there be?
What brand(s) of standard oil pump is(are) recommended?
The Cleveland is my favorite engine...though it's not without flaws. They have one of the worst oil systems of any engine. The stock oil system works great without mods for a mostly stock build. The two major flaws in the system is that the cam gets oil first, before the crank and the oil drain back is rather poor.Just wondering, why shouldn't you use a high volume oil pump in Cleveland's without oil system modifications?
I had a high volume pump put in when my engine was rebuilt in 1983. It was recommended with to go with the wrong cam that I bought under other bad advice. Along with the wrong cam which had 530 lift 280 duration on both intake and exhaust I had the (rocker pedestals?) milled down and taped for for screw in studs and had Ford guide plates installed. So, I was told to get the high volume pump, but no oil system modifications were done other than that pump.
Anyway, what will go wrong if you do the pump only?
BTW, the cam was unwise for my car because of the 3:00 rear end and the FMX. 70 H code Cleveland. I was just a kid and trusted the bad advice of the guy at the speed shop.
Thanks for the interesting informationThe Cleveland is my favorite engine...though it's not without flaws. They have one of the worst oil systems of any engine. The stock oil system works great without mods for a mostly stock build. The two major flaws in the system is that the cam gets oil first, before the crank and the oil drain back is rather poor.
Cam and valvetrain selection has little to no effect on oil pump selection.
Take the Chevy sm block...the crank gets oiled first. They also have clearances on the loose side, along with the ability to drain the oil back to the crankcase reasonably fast. Adding a high volume pump to the mix is fine because the extra volume helps cushion the extra clearance, all while getting to the lifters/pushrods/rockers and into the drain back passages in a timely manor.
A Cleveland runs a little tighter...the idea for proper engine lubrication is to get the flow of oil in the bearings and back out, before there is a chance for extra heat build up. When greater volumes of oil are forced into tight areas, the added friction causes heat to build up resulting in faster oil break down. The oil pump will also be straining to get the extra oil through the same stock passages, also resulting in heat build up and eventually pump failure. On a side note, once the oil makes it through the valvetrain, it pool in the cylinder head until it can drain back to the pan. The Cleveland heads have rather small drain holes making it hard for large volumes of oil to return to the sump. If a high volume pump is implemented, the extra volume removed from the pan makes it to the heads much faster than it can return...resulting in a "dry pan". This is very bad fuji and normally happens at higher rpm, which takes no time at all for engine failure.
Are you currently running the engine without problems? Are the other factors for cam selection complimentary?..ie, compression ratio, valve springs, hardened pushrods, etc.
Sorry...t9 word suggest, and I didn't proof read my post. What I meant to say was "matching" pickup. Get the Melling stock replacement pickup for a stock '69 Windsor oil pan. If you were to replace the oil pan with a Canton, go with the matching Canton pickup...Moroso pan, Moroso pickup and so on.Jester1023....What is a patching pickup?
Thank you for the other info. Joel
I don't think original pick up screens are adjustable. Don't they just bolt on. Or do you mean bend it?It may not be a bad time for a new oil pump, pick-up and drive rod. ALWAYS dry fit everything before you do the final install. You'll want to check for pick-up screen clearance...which is basically using silly putty on the bottom of the screen shield (NOT THE SCREEN ITSELF) and pressing the pan in place. Then you remove the pan to check your clearance.
Notes:
Don't use high volume or high pressure pumps in the Windsor or Cleveland without oil system modification. If you are lacking pressure and a new pump doesn't cure it, then you have other problems.
If you put the silly putty on the screen itself, it can and normally will, squeeze into the screen...game over.
Yes. Bending is the only way to adjust, but it most likely won't need to be bent...they're normally pretty close on the first try.I don't think original pick up screens are adjustable. Don't they just bolt on. Or do you mean bend it?