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will e wrote:What is the oil pressure doing? Verify with a mechanical gauge.

Dropping to zero and sluggish response on gauge when hot.

az chip wrote:

tedlovesjeeps71 wrote:

az chip wrote:Any ideas for oil pressure welcome. I searched and found the "oil gets hot drops to 5 psi threads. Just the relief spring or full oil pump replacement?

What weight oil you running??


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10-40

Hmmm... Then I back willE. You'll want to verify with a mechanical gauge.


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I have the low oil psi issue. I installed a T fitting with an electric gauge on my engine to verify my oil psi. Below 10 at idle in Drive/hot. I rebuilt the pump-- new gears and mid plate from BJ's. I also measured the pump clearances as outlined in the FSM. My front cover is worn beyond specs so the new gears and mid plate didn't help. I am eventually going to have to put a cover on it, but for now I am running 15w-40 and I bumped the idle a touch to help the psi stay a bit higher.
My advice to you is to first verify your oil psi, and then if necessary, switch to a higher viscosity oil, replace the pump gear set and put in a mid plate. Super easy to do with the external pump on these engines.

Curly wrote:I have the low oil psi issue. I installed a T fitting with an electric gauge on my engine to verify my oil psi. Below 10 at idle in Drive/hot. I rebuilt the pump-- new gears and mid plate from BJ's. I also measured the pump clearances as outlined in the FSM. My front cover is worn beyond specs so the new gears and mid plate didn't help. I am eventually going to have to put a cover on it, but for now I am running 15w-40 and I bumped the idle a touch to help the psi stay a bit higher.
My advice to you is to first verify your oil psi, and then if necessary, switch to a higher viscosity oil, replace the pump gear set and put in a mid plate. Super easy to do with the external pump on these engines.

Ted,
My thoughts as well. I have the parts coming. And a new end plate. There is a great series of posts on the Jeepforum about fixing your end plate to new tolerance.

az chip wrote:

Curly wrote:I have the low oil psi issue. I installed a T fitting with an electric gauge on my engine to verify my oil psi. Below 10 at idle in Drive/hot. I rebuilt the pump-- new gears and mid plate from BJ's. I also measured the pump clearances as outlined in the FSM. My front cover is worn beyond specs so the new gears and mid plate didn't help. I am eventually going to have to put a cover on it, but for now I am running 15w-40 and I bumped the idle a touch to help the psi stay a bit higher.
My advice to you is to first verify your oil psi, and then if necessary, switch to a higher viscosity oil, replace the pump gear set and put in a mid plate. Super easy to do with the external pump on these engines.

Ted,
My thoughts as well. I have the parts coming. And a new end plate. There is a great series of posts on the Jeepforum about fixing your end plate to new tolerance.

I can't take the credit for that sir. Will E and Curly are your brains in this one.


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az chip wrote:

Curly wrote:I have the low oil psi issue. I installed a T fitting with an electric gauge on my engine to verify my oil psi. Below 10 at idle in Drive/hot. I rebuilt the pump-- new gears and mid plate from BJ's. I also measured the pump clearances as outlined in the FSM. My front cover is worn beyond specs so the new gears and mid plate didn't help. I am eventually going to have to put a cover on it, but for now I am running 15w-40 and I bumped the idle a touch to help the psi stay a bit higher.
My advice to you is to first verify your oil psi, and then if necessary, switch to a higher viscosity oil, replace the pump gear set and put in a mid plate. Super easy to do with the external pump on these engines.

Ted,
My thoughts as well. I have the parts coming. And a new end plate. There is a great series of posts on the Jeepforum about fixing your end plate to new tolerance.

Ted is the New Tim? Link for the thread? It must be the CJ or YJ forum because the FSJ section on JF is dead.

Curly wrote:

az chip wrote:

Curly wrote:I have the low oil psi issue. I installed a T fitting with an electric gauge on my engine to verify my oil psi. Below 10 at idle in Drive/hot. I rebuilt the pump-- new gears and mid plate from BJ's. I also measured the pump clearances as outlined in the FSM. My front cover is worn beyond specs so the new gears and mid plate didn't help. I am eventually going to have to put a cover on it, but for now I am running 15w-40 and I bumped the idle a touch to help the psi stay a bit higher.
My advice to you is to first verify your oil psi, and then if necessary, switch to a higher viscosity oil, replace the pump gear set and put in a mid plate. Super easy to do with the external pump on these engines.

Ted,
My thoughts as well. I have the parts coming. And a new end plate. There is a great series of posts on the Jeepforum about fixing your end plate to new tolerance.

Ted is the New Tim? Link for the thread? It must be the CJ or YJ forum because the FSJ section on JF is dead.

Ted is a Tim?

CJ forum. Member name JeepHammer. Link to thread below

http://www.jeepforum.com/forum/f8/amc-v ... d-1050446/

Thanks for the link.

Pulling out the oil pump. The driven gear will not come out. Pulled the distributor out. No help. Nothing is ever easy at times. The end plate is scored pretty bad as well. Need to measure the sidewall pump gear clearance. Just as soon as I pull this gear out. Geez.



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I have been quite busy at work.

My driven oil pump gear is stuck and will not come out. I am worried that of I brass drift it out I will damage the timing cover. Not optimal. I have sprayed some Kroil in there to try and break up or loosen whatever is binding on the pump shaft. Any other ideas or tool suggestions very welcome. The learning burns sometimes.

Since the gears should probably be replaced anyway, can you weld something to the driven gear to ease it's removal?

If it's stuck I'd bet it's stuck on a little bur, something you should be able to force past. Maybe take a real fine pick and drag it around the tip of the shaft the gear ride on? In the little space between the two? If there is just a little bur that should take care of it.

Nikkormat wrote:Since the gears should probably be replaced anyway, can you weld something to the driven gear to ease it's removal?

If it's stuck I'd bet it's stuck on a little bur, something you should be able to force past. Maybe take a real fine pick and drag it around the tip of the shaft the gear ride on? In the little space between the two? If there is just a little bur that should take care of it.

Could be a burr. I will check that tonight.

Waiting on Bulltear which should be their motto. Putting in the Twin Fab sliders tonight.


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az chip wrote:

Nikkormat wrote:Since the gears should probably be replaced anyway, can you weld something to the driven gear to ease it's removal?

If it's stuck I'd bet it's stuck on a little bur, something you should be able to force past. Maybe take a real fine pick and drag it around the tip of the shaft the gear ride on? In the little space between the two? If there is just a little bur that should take care of it.

Could be a burr. I will check that tonight.

I got the gear out. Made my own tool to fit in the timing cover with distributor removed. Just waiting on bulltear.

These jumped into my truck yesterday.


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Don't know what to do. So I built the new engine stand. From this

To this




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Tearing down the 401 tonight. Found the data tag on the valve cover.

202Z15




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On the Cherokee.

Got the new pump gears in and clearances set.
https://youtu.be/5O8S5nmiSO4

Also got a little matter of plates!!!!



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That look good.

Congradulations on getting plates! Always a sigh of relief when I pass emissions.