1968 just started after 3 years

[cool68]

hey guys needs some help....I have a J code 302...that sat for 3 years...I got it fire up and it runs smooth..but I notice some blue smoke...in the exhaust..i,m thinking maybe the valve stem seal...tell me what you think..also tell me do I have to adjust the rocker arm studs? my car was built on febuary 15 1968....they say some 289 and 302 you don,t have to adjust the rocker arm stud...can someone tell me what to look for? and can someone give me the torque specs on the rocker arm studs :smile:

 

[franklinair]

289 & 302's are hydraulic valve lifters. Should need no adjusting (unless you've got a clacking sound caused by a collapsed lifter). I wouldn't jump to any conclusions until you've had the engine running for an hour or so, allowing it to get to operating temp and oil flowing through to lube everything. The blue smoke (oil) could be caused by a stuck ring (or rings) since the engine has been sitting for such a long time, and if that's the case, running the engine for a while may very well free up any stuck ring(s).
Just monitor the engine temp & oil pressure and see if the engine returns to normal operation. Then I'd do a compression check on all cylinders.

Neil