1991 mazda b2200 pick upOctober 28, 2015I switch from a hydraulic valve lash adjustment to a manual Adjustment. my ? Should have a wider gap on exhaust Keywords:1991 Mazda B2200 1 thought on “1991 mazda b2200 pick up” Freeautomechanic October 28, 2015 at 7:47 am All 2.2 engines that year came with hydraulic camshaft and lifters. I am hopeful that you changed the camshaft also to accommodate the solid lifters? If not, it will where out the camshaft premature. The valve lash should be the same on every lifter. If you want to open the exhaust valve more, you would need to install longer rocker arms. Where as if it has 1.5 rockers you would need to go with 1.6 on the exhaust and 1.5 on the intake to have the exhaust open more than if you left them with the 1.5 rockers. Comments are closed.