Sleeve idea nixed due to oil gallery too close to bore.
I think this is quick and dirty for bypass of oil sprayers.
Yeah more engine porn .....
So guys are going to be like Jack, why are you doing that, sure sounds contradictory?
Here is the thing....... oil is friction and so are hydro-static pressures.
Too much oil pressure will grab a crank or and stop it from turning or alter valve timing for lash changes in lifters or certain vario conditions and temps can soar as a result.
Understanding hydro-statics is important and as a farm boy I understand them well with all the heavy equipment built or maintained in life.
Oil sprayers or even in conjunction with rifle bore on a to connecting to crank is way dumb for anything performance in mind and in tests I have done violate the spirit of useful life or function as stated.
The original spirit of the sprayers was to reduce temps of the pistons related to mid evil knock control systems and SMOG related in addition to lubrication of pin and bore well allegedly!
While in original spirit or intent this maybe noble on paper in some SAE publication, however, I can tell you it is wrong and my by own verification why motors explode at track or under extreme endurance when pushed!
When you lose oil PSI at crank mains or rods and or oil sprayers, especially under certain conditions you lose big time in head area and those are even more critical friction components you just dont play games with.
Because the blocks are for most part cast iron and the heads aluminium they expand at different rates.
As you can see the 's put tremendous friction requirements on valve trains now & with variable cam, lift timing or the HPP and fail to adapt around existing issues by missing their own basics.
Fact when removing oil being sprayed in or pop off sprayers, you lower temps under normal and race driving conditions due to added needed oil getting to valve train under conditions under constant load ( cruising speeds ) or increasing load offsets.
Guys would add external oil coolers it was such a problem in the early engines because an MFA would reflect temps in the 300 range on a hot day under normal driving !
Deleting the sprayer's cut temps literally in half and GHG at tailpipe were far better believe it or not.....
I cap them off ......... A sprayer can stick open from contaminated oil, sludge and ethanol content fuels that forces them to be stuck open!
If the sprayer jets ball sticks open, it's not a good time for the engine since in main oil gallery, especially the cylinder head!
Getting the harmonious oil PSI in all ranges with adequate volume are key to reducing friction, aeration and lowering GHG's.
Too much oil sump level or spraying around only assists with a failure of cross contamination and temperature increases.
Let's dissect a sprayer......