Put the old vacumn gauge on and it headed me toward the valves. NO.5 had a splintered not broke spring(intake) NO.2 had the same thing .Got a pack of springs from the machine shop guy.Did my rubber band and compress air with my pointy vicegrips thing and replaced the two bad springs.I have not used a vac gauge in 30 years the one i had was still in the box for all that time. Thanks a millon again.