bonesmx2000
supportn the single moms
- Joined
- Apr 9, 2007
- Messages
- 494
here is what we have in the shop a 96 12v with almost 200,000 miles on the stk head gasket that it just blew it had a 160 hp pump and a guy he knows got him and industrial pump off of a 250 hp cummins b motor so he runs the pump for a lil while and he keeps saying its a complete dog i honestly dont know what gov springs are in it i tried swapping afc housing 2 c if mybe tha afc arm was diff i know it has a really really stiff spring in it he said it gets to 25psi and runs great untill then nothing at all and he gets 42 psi with a hx 35 stk in j and very little advance timeing but ne ways he decided he was going to pull the plate out of it and drive it that way and said it came to life but in doing so it took out a head gasket so he brought it over we pulled head put in a new gasket it lasted 8 miles of easy driving and blew again so we put in a .020 thicker head gasket in and it blew it in 10 miles first gasket was exh side second gasket was all intake side this one havent gotten head off yet so dont know i checked head with a straght edge and it seemed pretty flat i think i could get a .004 feeler guage in in like one spot but it was trying to lift my straight edge so any ideas im open to suggestions thanks jeremy