loss is oil pressure when engine is up to temp
#12
12-18-2013, 11:32 AM
#13
12-19-2013, 02:59 PM
#14
12-19-2013, 03:00 PM
#15
12-20-2013, 04:03 AM
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Hey I want to add something, but it may be too late now...I wish you would have pulled the cap from the rear main AND the last connecting rod...drop a plastigage strip on both and check the wear... If it would have been too far out, you could have then hit it with a caliper or micrometer to get an idea if you can simply change out the bearings and put it back together...
But, as far as oil pressure, the oil gallery system pressurizes the mains(crank) above everything else. The oil flows to the cam bearings, then the rest of the oil is sent to the lifters, which if flow is low, nothing will make it's way up the pushrods and onto the rockers.
Another reason I want you to look at bearings. I think there may now be embedded material on the bearings from when your mechanic did the intake. In fact I find that to be a high probability. On a Magnum you can get to every bearing in the bottom end without pulling the crank. That may be frowned upon...but when bearings are 60 bucks why would you leave contaminated stuff in the engine. If you do it, when your done, pull the harmonic balancer and replace the cover seal because the weight of the crank resting on it makes it leak.
Of course...if the truck has bad rings...hell with it.
But, as far as oil pressure, the oil gallery system pressurizes the mains(crank) above everything else. The oil flows to the cam bearings, then the rest of the oil is sent to the lifters, which if flow is low, nothing will make it's way up the pushrods and onto the rockers.
Another reason I want you to look at bearings. I think there may now be embedded material on the bearings from when your mechanic did the intake. In fact I find that to be a high probability. On a Magnum you can get to every bearing in the bottom end without pulling the crank. That may be frowned upon...but when bearings are 60 bucks why would you leave contaminated stuff in the engine. If you do it, when your done, pull the harmonic balancer and replace the cover seal because the weight of the crank resting on it makes it leak.
Of course...if the truck has bad rings...hell with it.
#16
12-20-2013, 07:44 AM
Too late the motor is all back together. I'm slapping the starter in and starting the motor. If I don't get good oil pressure right off the bat I will look into it further.....I thought about checking the bearings on the crank and rods but didn't want to screw it up. I poured oil down both valve covers.
Thanks
Adam
Thanks
Adam
Hey I want to add something, but it may be too late now...I wish you would have pulled the cap from the rear main AND the last connecting rod...drop a plastigage strip on both and check the wear... If it would have been too far out, you could have then hit it with a caliper or micrometer to get an idea if you can simply change out the bearings and put it back together...
But, as far as oil pressure, the oil gallery system pressurizes the mains(crank) above everything else. The oil flows to the cam bearings, then the rest of the oil is sent to the lifters, which if flow is low, nothing will make it's way up the pushrods and onto the rockers.
Another reason I want you to look at bearings. I think there may now be embedded material on the bearings from when your mechanic did the intake. In fact I find that to be a high probability. On a Magnum you can get to every bearing in the bottom end without pulling the crank. That may be frowned upon...but when bearings are 60 bucks why would you leave contaminated stuff in the engine. If you do it, when your done, pull the harmonic balancer and replace the cover seal because the weight of the crank resting on it makes it leak.
Of course...if the truck has bad rings...hell with it.
But, as far as oil pressure, the oil gallery system pressurizes the mains(crank) above everything else. The oil flows to the cam bearings, then the rest of the oil is sent to the lifters, which if flow is low, nothing will make it's way up the pushrods and onto the rockers.
Another reason I want you to look at bearings. I think there may now be embedded material on the bearings from when your mechanic did the intake. In fact I find that to be a high probability. On a Magnum you can get to every bearing in the bottom end without pulling the crank. That may be frowned upon...but when bearings are 60 bucks why would you leave contaminated stuff in the engine. If you do it, when your done, pull the harmonic balancer and replace the cover seal because the weight of the crank resting on it makes it leak.
Of course...if the truck has bad rings...hell with it.
#17
12-20-2013, 02:08 PM
truck is all put back together fixed a few other things while I was working on it. started the truck and was showing around 50ish at the gauge good amount of oil coming up through the push rods. at temp the oil pressure is around 30-35 ish. took a stethoscope a listen to the crank and a few other places no strange noised or knocks. I think I lucked out on this one. I guess it was a warning for not looking into problems when they first happen.
#18
12-20-2013, 10:56 PM
#19
12-21-2013, 02:51 AM
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#20
12-21-2013, 06:21 AM
I have one question about bearings........I know all the pushrod bearing can be changed with the motor in the truck.....but what about the crank. All the bottom bearings can be changed but what about the top ones????? Just something I've been thinking about.....Thank god I don't have to do it.