SUCCESS!!!!!!! PRIMING AN ENGINE BEFORE FIRST START
06-05-2007, 07:20 PM
#21
6th Gear Member
Join Date: Apr 2007
Location: California
Posts: 10,468
RE: PRIMING AN ENGINE BEFORE FIRST START
Above sorta the camshaft thrust plate, at about the 10 o clock 12 and 2 o clock positions there's three holes that are the front ends of the lifter gallery(there should be screw in plugs in the back of the block) and they MUST be plugged, they're like freeze plugs, only about 1/2" dia. If any 1 is left unplugged, you won't have oil pressure. They're there because when the blocks are cast, they drill holes from front to back to create the oil pathways that run the length of the blockfor the lifters/cam bearings. To close it back up you need to plug it. If your's aren't plugged then fix it before you start it.
06-05-2007, 09:49 PM
#23
2nd Gear Member
Join Date: Oct 2006
Location: Florida
Posts: 371
RE: PRIMING AN ENGINE BEFORE FIRST START
I recently primed my new 306, got an old distributor, stripped it to just a shaft, chuck in cordless and set to reverse, less than 5 seconds and I had 20 psi. If you did that and are not getting oil pressure, you may have to tear it down and find out why.
06-05-2007, 11:24 PM
#24
2nd Gear Member
Thread Starter
Join Date: May 2007
Location:
Posts: 224
RE: PRIMING AN ENGINE BEFORE FIRST START
My assistant had this to say:
Oil pan was removed, the pickup was submersed in a container of oil
the drill was ran in reverse, a high volume of oil flowed through the oil filter outlet. Once the filter was installed the oil would travel up and you could see it pouring out into the timing cover (from underneath with the pan removed)
The oil in the container was sucked up in 3 or 4 seconds. The pump is definately working. The engine was assembled and ran. The gauge is reading 0 psi of oil. No oil is coming through the pushrods.
questions:
why 0 psi if it flows
does the orientation of the lifter matter? it has a little oil hole on the side but no indication if it goes up or down. I put them in with the holes facing up.
is there a test to determine if the fault lies in the cam bearings?
Oil pan was removed, the pickup was submersed in a container of oil
the drill was ran in reverse, a high volume of oil flowed through the oil filter outlet. Once the filter was installed the oil would travel up and you could see it pouring out into the timing cover (from underneath with the pan removed)
The oil in the container was sucked up in 3 or 4 seconds. The pump is definately working. The engine was assembled and ran. The gauge is reading 0 psi of oil. No oil is coming through the pushrods.
questions:
why 0 psi if it flows
does the orientation of the lifter matter? it has a little oil hole on the side but no indication if it goes up or down. I put them in with the holes facing up.
is there a test to determine if the fault lies in the cam bearings?
06-06-2007, 04:55 AM
#25
4th Gear Member
Join Date: Jan 2007
Location:
Posts: 1,999
RE: PRIMING AN ENGINE BEFORE FIRST START
ORIGINAL: Jfsram
You may have to rotate the engine to align the camshaft oiling holes.
2 slow turns of the crankshaft.
You may have to rotate the engine to align the camshaft oiling holes.
2 slow turns of the crankshaft.
My mistake here was we are talking about a SBF and the valvetrain is not oiled by the camshaft jouranals. This is only for shaft mounted rocker engines like small and big block Dodges.
Carry on.
06-06-2007, 05:02 AM
#26
6th Gear Member
Join Date: Apr 2007
Location: California
Posts: 10,468
RE: PRIMING AN ENGINE BEFORE FIRST START
ORIGINAL: piedraco
My assistant had this to say:
Oil pan was removed, the pickup was submersed in a container of oil
the drill was ran in reverse, a high volume of oil flowed through the oil filter outlet. Once the filter was installed the oil would travel up and you could see it pouring out into the timing cover (from underneath with the pan removed)
The oil in the container was sucked up in 3 or 4 seconds. The pump is definately working. The engine was assembled and ran. The gauge is reading 0 psi of oil. No oil is coming through the pushrods.
questions:
why 0 psi if it flows
does the orientation of the lifter matter? it has a little oil hole on the side but no indication if it goes up or down. I put them in with the holes facing up.
is there a test to determine if the fault lies in the cam bearings?
My assistant had this to say:
Oil pan was removed, the pickup was submersed in a container of oil
the drill was ran in reverse, a high volume of oil flowed through the oil filter outlet. Once the filter was installed the oil would travel up and you could see it pouring out into the timing cover (from underneath with the pan removed)
The oil in the container was sucked up in 3 or 4 seconds. The pump is definately working. The engine was assembled and ran. The gauge is reading 0 psi of oil. No oil is coming through the pushrods.
questions:
why 0 psi if it flows
does the orientation of the lifter matter? it has a little oil hole on the side but no indication if it goes up or down. I put them in with the holes facing up.
is there a test to determine if the fault lies in the cam bearings?
Also, if the engine was ran, depending on how long(like, longer than a few seconds) then it prolly needs new bearings, since engines don't like to run without any pressure/lubrication
06-06-2007, 05:09 AM
#27
Join Date: Jun 2007
Location:
Posts: 22
RE: PRIMING AN ENGINE BEFORE FIRST START
sure sounds like a oil gally plug is missing to me there are 2 behind the timing cover and one under the back of the intake all 1/2 inch prob not getting and pressure to the lifters at all
06-06-2007, 09:22 AM
#28
2nd Gear Member
Thread Starter
Join Date: May 2007
Location:
Posts: 224
RE: PRIMING AN ENGINE BEFORE FIRST START
would anyone have a picture of these plugs by the timing cover? I pluged the three holes in the back of the block but failed to recognize the the holes in the front of the timing cover. I hope thats all that is I really do. Since the bearings were covered in assembly lube, I dont think they got damaged, I will try and upload some pictures when I take off the timing cover and see whats going on., I'll make a new thread in a couple of days with all my pictures of the build if I can figure out how to upload photos.
06-06-2007, 11:16 AM
#30
4th Gear Member
Join Date: Jul 2006
Location:
Posts: 1,897
RE: PRIMING AN ENGINE BEFORE FIRST START
ORIGINAL: Jfsram
As soon as I read the kind response by creekrat and LTnone I realized my advice was wrong.
My mistake here was we are talking about a SBF and the valvetrain is not oiled by the camshaft jouranals. This is only for shaft mounted rocker engines like small and big block Dodges.
Carry on.
As soon as I read the kind response by creekrat and LTnone I realized my advice was wrong.
My mistake here was we are talking about a SBF and the valvetrain is not oiled by the camshaft jouranals. This is only for shaft mounted rocker engines like small and big block Dodges.
Carry on.
I'll forgive you if you let me take that Super Bee out for a spin!
