who is running MRL (BAM) Lifters without lifter bore sleeves
That's how you are getting by with that low oil pressure at idle. If you were running a rocker without needles it would already be toast.
I am about where Clint is at w/ my oil pressure, except I have more cold and more at higher rpm`s. I have the MRL lifters, hughs 1/6 rockers. I did an oil mod., which I `ve tried to correct w/o pulling the heads to add restrictors to the feed holes, which I`ll do if I ever have it apart, ''hope that don`t happen!"
Yes shimming the spring on a hi volume pump will help the hot low idle, but will raise the cold idle , and upper rpm pressure too, gotta compromise ! My hot is about 18-20 at idle, I`ve checked a few rod bearings , and #4 main , all looked good. And moved all the rods checking side clearance and for any binding every time I`ve had the pan off (about 4 times). The inside looks just like it did when it was new.
Warning: don`t drill the oil feed passages into the main oil gallies for full time oiling , like a member illustrated a year or two ago!! >" big block".
It would be far better to just groove the #4 cam journal about .020-.030 .
THE FULL TIME OILING MOD , OR THE LIFTERS, ONE OR THE OTHER IS WHAT CAUSES MY LOW / HOT OIL PRESSURE < I think. around 18-20- at 1150 idle.
The word is minumim of 10 pounds per 1000 rpm , so Clint and I should be scrapeing by!.
