Re: [AMC-list] Oil pressure

[Ken Ames <ameskg@xxxxxxxxx>]

"Standard old-shool rule of thumb was 10-psi for every 1000 RPM. "

I believe this is for chebbys and such. Most AMC TSMs call for at least 13 at
idle and over 37 at highway rpm. (with hot oil I assume)

Ken


Quoting Greg Taylor <amundaza@xxxxxxxxx>:

> Yes, do check the relief spring setup and/or if you have the bypass
> flapper (if 
> you do ... you can get a pump cover withOUT one.
> 
> Cold idle rebuilt should be 40-65 PSI .  Warm should be no less than 20 PSI,
> 
> usually is more about 45-50 PSI if the pump gears/housing are set
> up properly.  
> Standard old-shool rule of thumb was 10-psi for every 1000 RPM. I personally 
> want to see more than 10-PSI at 1000 RPM.
> Â 
> Sincerely, 
> Greg Taylor 
> Rochester Hills, MI
> 1989 Jeep Grand Wagoneer "TRMN8R2"
> 330-CID AMC Stroker V8
> 
> 
> 
> 
> ________________________________
> From: Don <don_nsx@xxxxxxxxxxxx>
> To: AMC List <amc-list@xxxxxxxxxxxx>
> Sent: Sat, November 13, 2010 3:51:18 PM
> Subject: [AMC-list] Oil pressure
> 
> I recently had a rebuild done on a 70 390 engine.  What oil pressure should
> I be 
> getting at idle?  I am afraid I may end up pulling this engine back out.
> 
> 
> Jim
> 
> Jim,
> Donâ??t pull the engine until you check the oil pressure relief spring
> system.
> If the relief spring is too weak or installed wrong, it may be bypassing most
> of 
> the pumps output.
> Don
> 
> 
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