Oil pump install question
 

I've recently acquired a 31 rolling chassis with motor and trans. Unknown if it's a runner or not, so I've removed the oil pan and pump to clean. When I removed the pump there was no screw in the passenger side block. Upon reinstall, I threaded a bolt lightly in the hole to hold the pump. Pan is installed with new gaskets, etc. My question is, is the bolt supposed to remain in the hole to hold the pump, or should I remove it and plug the hole with..... ??? Thank you

Re: Oil pump install question
 

The oil pump is held in place by the spring mounted to the bottom of the pump.No bolt,the hole is sealed with a pipe plug.Dont remember the pipe plug thread size.

Re: Oil pump install question
 

The thread size for the hole is 1/8 “ pipe thread.

Re: Oil pump install question
 

wrong text, deleted

Re: Oil pump install question
 

Number 13,
this pin is only an assembly aid. It prevents the pump housing from slipping out until the oil pan is in place.

Many success!

Re: Oil pump install question
 

If you screwed in a normal thread "bolt" you may have damaged the NPT ( Pipe Thread) in the hole. Use the proper size NPT pipe plug. Or the available handy tool that uses a small screw through a pipe plug to hold the pump during engine assembly.

Joe B

Re: Oil pump install question
 

Thank you everyone!

Re: Oil pump install question
 

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