ATOMIC 4 ENGINE OIL ADJUSTMENT

[J W Huhta, Sr.]

Just adjusted our oil pressure. It was a snap!Looking from the flywheel end of the engine, under the carb and fuel pump on the right side is a nut encapsulating a flat head adjustment screw. Turn it clockwise one full turn and you get a 6 to 7 psi increase in oil pressure. I did it with the engine not running. Did two turns and got the oil pressure(hot engine) from about 23 psi to about 37 psi.Hope someone can use this info.............Jim

 

[Rob R.]

Good Job! Question....

What type of wrench/socket did you use to loosen the nut, and how hard was it?Thanks!Rob

 

[J W Huhta, Sr]

Atomic 4 engine oil adjustments

Rob (and Others):I used a 19mm deep socket with about a six inch extension and of course a socket wrench; I estimate the adjusting nut had 8 lbs torque on it, and the adjusting screw was snug and proper.And I tightened it to about 15 lbs torque. And I KNEW I forgot to mention thetools used just as soon as I sent the letter!Thanx for the inquiry Rob..........

 

[Garry]

19 mm

Just a note that 19 mm is 0.748 inches, pretty close to 3/4" which is what it probably is on the US built A4.

 

[J W HUHTA, SR]

Garry of Deale, MD

Garry......I agree that it is probably a 3/4" and not a 19MM. A friend did the actual nut/screw adjustment( he's thinner than I). But, that's what he used--a 19MM socket. Thanx.