Is it necessary to put vaseline in the oil pump after removing timing cover?

L

LNMRMN

Member
We replaced the timing chain in the 69 skylark and the shop manual says to take the oil pump apart and pack it with vaseline. Is this a necessary step?
 
The purpose of packing the pump is to help it pull oil up from the sump faster. If your pump is in poor condition it could take a while to prime causing the engine to run for longer than necessary without oil.

You can prime the pump using a drill rather than just starting the motor being as you have already put it back together.
 
Thanks

Thanks for the info. Im thinking I might try a drill. Dont want to open up any more cans of worms.
 
on any rebuild, you should crank the engine over - NOT letting it start, until the oil pressure guage shows oil pressure starting to rise.

if all you've done was change timing gear/chain, the block should have plenty of oil in the passageways. I would still pull the coil wire and crank it, watching the oil pressure guage
:shifter:
 
You must log in or register to reply here.
Back
Top