I am working on a1964 cutlass convertible. I inherited this project started 20+ years ago by a friend. The 330 engine was rebuilt and in the chassis. I decided to build oil pressure and crank the engine plugs out before starting it.After running the drill a short time I had 3 or more quarts of oil on the garage floor. Pulled the transmission and found the cam galley threaded plug and the welch plug missing. I think my find disconnected the think it through process. Quickly installed the two plugs and reassembled everything. Then started engine, No oil pressure. I now think the welch plug on the drivers side of the engine block was an access plug that gives access to a thread plug foward of the welch plug. Can someone who's been there done that confirm my now revelation. IS THERE A THREADED PLUG ON THE ENGINE LEFT SIDE IN FRONT OF THE WELCH PLUG?

 

Someone jump in please...bump. IIRC correctly 2? behind the front cover, one with a spit hole to oil the timing chain Another one with a spit hole inside the distributor hole to oil the distributor.

 

Whats a "Welch plug" ?

 

freeze plugs

 

yes 2 in front, one w a hole. one in back w a hole.

 

The plug under the freeze plug has the 0.040" hole to provide lube to the distributor gear. Once again, it pays to read the Chassis Service Manual.

https://classicoldsmobile.com/forums...19/#post913125

 

Thank you Joe and everyone who replied. I do have all 5 of the factory service manuals and had tried to find information in them. I am going to try again. I'm sure the plug is missing, will get one and drill the .040 hole.