[Fot] Fw: Help with Oil Pressure Problem

[Greg Solow]

I do not believe that the rocker assembly could cause this.  The standard 
oil feed is though a restricted hole from the rear main bearing to the rear 
cam bearing, then the feed is intermitently pulsed by the rotation of the 
camshaft lining up a spiral groove in the rear cam journal and some flats 
machined into the journal. I have by passed this system and fed oil directly 
from the restricted drilling from the rear main, to the drilling that goes 
up to the head. Doing this feed a lot more oil the the rocker gear, but did 
not affect oil pressure at all.
     Excessive clearance in the oil pump, either excessive end float on the 
gears or excessive tip clearance between the rotors will give low oil 
pressure at idle, The oil leaks back withing the pump at it rotates slowly, 
but at the reves come up and the pump turns faster, I think it can overcome 
this internal leakage and the pressure in the engine will come up.
                                                                             
                        Greg Solow
----- Original Message ----- 
From: "Joe Alexander" <n197tr4 at cs.com>
To: "Mark J Bradakis" <mark at bradakis.com>
Cc: <fot at autox.team.net>
Sent: Thursday, March 06, 2014 5:51 PM
Subject: Re: [Fot] Fw: Help with Oil Pressure Problem


> Is there a simple test to determine an issue with rocker arms and shaft?
>
> Temporarily block feed hole?
>
> Joe Alexander
> 645 1st Street
> Jesup, IA 50648
> The-vintage-racer.com
> Gasketinnovations.com
> Cell:  319.464.4711
>
>> On Mar 6, 2014, at 7:47 PM, Mark J Bradakis <mark at bradakis.com> wrote:
>>
>> Jack Wheeler wrote:
>>> I've never sent a message to the FOT group before, so I hope I am doing
>>> this correctly.
>>
>> Yep.  To send a message to fot at autox.team.net you send a message to
> autox.team.net
>>
>>
>> No issues with the rocker arms, shaft and bushings?
>>
>> mjb.
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