On a brand-new engine I would definitely pull the distributor and run the
oil pump with a drill first. Better safe than sorry.
If it's a case of an already-broken-in engine sitting for a while (like
several months), then pulling the spark plugs, squirting a little oil in the
cylinders and then cranking it with the plugs out is okay. Usually if I'm
doing this, I do a full oil change first and pour a couple quarts directly
over the cam and down the chains. Be careful it doesn't run all over the
outside of the engine if you do it this way, however.
> -----Original Message-----
> From: email@example.com
> [mailto:firstname.lastname@example.org]On Behalf Of Perry Smith
> Sent: Saturday, April 24, 2004 6:49 AM
> To: datsunmike; email@example.com
> Subject: Re: re built engine break in suggestions
> What Mike mentioned about removing the spark plugs and using the
> starter is - of course, correct. My brother had that opionion as
> as alternative as well. I'll just mention I'm not a mechanic -
> just more paranoid (especially after $800 for a short block/
> machined crank), so I took the "prime the oil pump" method. I
> guess I just wanted to actually "SEE" oil coming out of the cam
> towers before I started it up!
> datsunmike <firstname.lastname@example.org> wrote:I would like to add that
> when the engine is first run in for 30 minutes it
> needs to be at a fast idle of at least 2000 rpms to break in the cam and
> lifters or followers so that they mate properly. Every cam manufacturer
> recommends that including the engine builder I used.
> If you don't want to spin the oil pump then remove the spark plugs and use
> the starter to crank the engine over and build up oil pressure.
> The assembly
> lube will protect the bearings but make sure the builder used
> assembly lube.