'89 roller-cam LA 360 w/Magnum heads - new roller lifters not pumping up
I'm still trying to make sense of this.
The description says the Magnum lifter pushrod socket has a hole in the side of the socket, and the roller LA lifter has a hole in the center of the socket.
The photo shows a pushrod socket that appears solid on the left (is the "hole in the side of the socket" that tiny bit of white on top?) and a pushrod socket with a definite hole in the center on the right.
I understand the hole in the center of the socket, and though I have a concept of what the metered socket is supposed to look like from the description. However, I'm being thrown off by that lousy photo, which doesn't correlate with the description (unless that white fleck is the hole).
That leads me to two other things:
Either that, or this socket is INSIDE the pushrod, and I'm just (incorrectly) assuming the "pushrod socket" is the cupped piece that the pushrod fits into.
The difference between the earlier roller lifters and the Mag lifters isn't making this any easier to solve, but it does seem possible that the LA lifters were supposed to squirt up a storm, while the Mag lifters are supposed to dribble.
Either way, I'm just surprised that I've yet to find a single person who has primed a Magnum 5.2 or 5.9 and can definitively say what the oil coming out at the rockers should look like when the oil pump is at ~1,000 rpm. At least I'd know what I'm looking for if I had an answer for this.
-Kurt
I'm still trying to make sense of this.
The description says the Magnum lifter pushrod socket has a hole in the side of the socket, and the roller LA lifter has a hole in the center of the socket.
The photo shows a pushrod socket that appears solid on the left (is the "hole in the side of the socket" that tiny bit of white on top?) and a pushrod socket with a definite hole in the center on the right.
I understand the hole in the center of the socket, and though I have a concept of what the metered socket is supposed to look like from the description. However, I'm being thrown off by that lousy photo, which doesn't correlate with the description (unless that white fleck is the hole).
That leads me to two other things:
- I'm baffled why the Magnum lifters - which are supposed to oil through the pushrods - would not have a hole directly in the center of the socket. I understand the concept of metering, but not by offsetting the hole where the oil won't be able to get through the pushrod.
- Every single one of the lifters I've chased through in this journey has had a hole directly in the center of the socket. Both of the ones from the engine, the ones from Sireland67, and the brand new ones from two different brands. Are these the "metered" lifters, or is everyone making them in the roller LA style?
Either that, or this socket is INSIDE the pushrod, and I'm just (incorrectly) assuming the "pushrod socket" is the cupped piece that the pushrod fits into.
The difference between the earlier roller lifters and the Mag lifters isn't making this any easier to solve, but it does seem possible that the LA lifters were supposed to squirt up a storm, while the Mag lifters are supposed to dribble.
Either way, I'm just surprised that I've yet to find a single person who has primed a Magnum 5.2 or 5.9 and can definitively say what the oil coming out at the rockers should look like when the oil pump is at ~1,000 rpm. At least I'd know what I'm looking for if I had an answer for this.
-Kurt
