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Mandatory oil system mods
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PHAT69AMX View Drop Down
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Points: 5926 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PHAT69AMX Quote  Post ReplyReply Direct Link To This Post Posted: Feb/17/2019 at 1:29pm
Revised long AMC Oil System "info" List on Page 4


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Yeah, I was kinda excited at first, but of course larger gear diameter means different shaft spacing, should thought of that myself. Too much wishful thinking....
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AMC Oil Pump Gears are already Longer and deliver more Volume than Buick Oil Pump Gears.


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Originally posted by White70JavelinSST White70JavelinSST wrote:

Originally posted by 73hornut 73hornut wrote:

Originally posted by wheelz wheelz wrote:

Originally posted by 73hornut 73hornut wrote:

Originally posted by wheelz wheelz wrote:

I have also used this to adjust oil pressure if there is too much after a new build before starting


ADJ OIL PRESSURE REGULATOR
Anyone sell this in a kit form?


T/A performance. Its a Buick part and the bolt is a different size so I transfer the adjuster to an AMC bolt by drilling the same size hole and using an AMC spring
Is there a link to the parts used? Thanks




Here's the link you were asking about


looks like they cost about $20

I was wondering, cause T/A Performance sells oil pump gears for Buicks, if the Buick gears are a bit larger than AMC gears, and if so, could the oil pump housing on an AMC timing cover be bored to fit these larger gears, thus making all those used housing with grooves in the oil pump bores, much more re-useable?
The problem would probably be the center to center dimensions for the gears? I would guess that larger diameter gears would dictate farther spacing?
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Points: 4866 		Post Options Post Options   Thanks (0) Thanks(0)   Quote White70JavelinSST Quote  Post ReplyReply Direct Link To This Post Posted: Feb/08/2019 at 12:08pm
Originally posted by 73hornut 73hornut wrote:

Originally posted by wheelz wheelz wrote:

Originally posted by 73hornut 73hornut wrote:

Originally posted by wheelz wheelz wrote:

I have also used this to adjust oil pressure if there is too much after a new build before starting


ADJ OIL PRESSURE REGULATOR
Anyone sell this in a kit form?


T/A performance. Its a Buick part and the bolt is a different size so I transfer the adjuster to an AMC bolt by drilling the same size hole and using an AMC spring
Is there a link to the parts used? Thanks




Here's the link you were asking about

http://www.taperformance.com/proddetail.asp?prod=TA%5F1502

looks like they cost about $20

I was wondering, cause T/A Performance sells oil pump gears for Buicks, if the Buick gears are a bit larger than AMC gears, and if so, could the oil pump housing on an AMC timing cover be bored to fit these larger gears, thus making all those used housing with grooves in the oil pump bores, much more re-useable?
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Points: 101 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wheelz Quote  Post ReplyReply Direct Link To This Post Posted: Feb/08/2019 at 12:00pm
Adding a remote oil filter will also add capacity to the system. I like to run the Bulltear adapter and braided lines to the filter adapter. Along with my 8 qt Milodon I have almost 10 quarts but I only put in 9 so I have 7 in the pan
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Originally posted by Trader Trader wrote:

Typically on most engines, 1 to 2 quarts of oil are in motion above the oil pan. Adding one quart would likely be fine if on an AMC this still keeps the crankshaft from aggressively aerating the oil.
As RD pointed out the aggressive driving is another matter.

On deceleration the "police pan", you would think, without the "standard pan" baffle, move so much oil to the front of the engine that you would aerated heavily but also expose the oil pickup to air.

I'm not convinced the "police pan" is a desirable thing to have.  
I have had one on my AMX for 25 years with zero problems.
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Typically on most engines, 1 to 2 quarts of oil are in motion above the oil pan. Adding one quart would likely be fine if on an AMC this still keeps the crankshaft from aggressively aerating the oil.
As RD pointed out the aggressive driving is another matter.

On deceleration the "police pan", you would think, without the "standard pan" baffle, move so much oil to the front of the engine that you would aerated heavily but also expose the oil pickup to air.

I'm not convinced the "police pan" is a desirable thing to have.

Just reading on the g forces, a stock 1970 Go Pack AMC by the numbers (time/distance) would pull 0.4g on acceleration and with disk brakes was best in class and pull 0.6g braking.

Not bad for a 1970 vehicle, as a BMW M3 today is best in class pulling 1g (32 ft/s-sq) braking.   


Edited by Trader - Feb/08/2019 at 11:02am
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You're definitely going to have aeration issues if the "fix" for poor drainback is more oil, at least in my opinion.


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Points: 6909 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Trader Quote  Post ReplyReply Direct Link To This Post Posted: Feb/08/2019 at 9:11am
Just a little light reading:
I find figure 1-5 and connecting rod lubrication interesting as it seems to me a plausible cause for #6 failures and typical AMC failures towards the rear due to "bubbles forming and blocking oil flow.
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