Posted by T.KRALOVIC on December 17, 1997 at 15:22:07:
MY 52 M-37 reads 40 psi at start up. on a hot day at idle it drops to 12. while driving it holds about 25. i use valvoline 30 hpo. would a new pump help. where is the relief spring. can it be made to increase pressure. any suggestions. do i have major problems ahead. help!!!