258 experts I need help, new motor no oil pressure
I hope someone out there can help me with this one !!!
I have a new (rebuilt) 258 in my 87 wrangler with maybe 5-10psi of oil pressure at idle and 15-psi at 2000 rpm, machine shop did terrible work on my block looked like it just came out of someones backyard when I got it back from ARRINGDALES in hesperia
I took it back to the guy and told him I was not satisfied with the way it looked after spending 1300 bucks, he gave me some line of BS about all the blocks looking that way when they come out of the hot tank...whatever so I took the ugly beast home, and got busy cleaning it up...I did not run a bore brush through the oil galleys like I should have but I blew compressed air through and it seemed to come out OK everywhere, so long story short I get the motor put together and put in the jeep and it starts right up sounds great...but 0psi oil pressure, I had a problem with the gauge before the build so I didnt think much of it,
went and got a new mechanical gauge the next day same thing 0-5psi at idle 10-15psi at 2000rmp...hot or cold doesn't change...so just in-case I got a bad gauge I went and got another one an electric one this time with new sending unit... Still the same very low readings...so after all the problems with the machine shop, I thought maybe they gave me a BUM oil pump so $120.00 later I had a new oil pump and pan gasket... primed the system, started the motor same thing low pressure...5-10psi
Weird thing is it doesnt really make any noise after warm up theres a slight ticking sound I believe thats common in the 258...
So I pulled off the valve cover and it is slightly wet in there but not enough so I started the engine and watched the oil flow it seems to be coming out of 3 push rods near the firewall but not out of the rest near the front of the engine ???? looks like all the lifters are good and wet its just not making it up through the push rods pulled them off to make sure their clean and I could see through all of them so that's not the problem
does this sound like some kind of galley blockage or have I possibly spun a cam bearing and the oil is not making it to the top end ??? anyone else ever have this problem ???
DOES ANYONE HAVE A DIAGRAM OF THE OIL FLOW FOR THE 258???
does it go from the pump to the filter to the sensor then to the cam and top-end???
other than clogged passageway, spun cam bearing, bad oil pump, can anyone think of anything else that would cause this condition...
B.T.W. I am using 10w30 oil an napa gold filter, and have changed the oil and filter twice since installing the motor a week ago, I am going to try Rotella 15-40 next and see if that helps some... I am at the end of my idea list... I need some help or I will have to pull this dang motor and start from scratch again!!!!
Any help will be greatly appreciated