Re: [Amc-list] recently rebuilt 343 - No Oil Pressure

[Tom Jennings <tomj@xxxxxxx>]

Hmm, no engine builers replied... OK, I'm rank amateur engine builder, 
but... that sounds bad to me. The first few minutes are the most 
critical by far.

Usual practice is to spin up the oil pump with a drill and flattened rod 
until you see oil pressure, BEFORE you fire up... or at least spin it up 
until it "gets stiff" so that the galleries are all full of oil and the 
pump primed.

No way you wanna hear this... if it were me, I'd pull the engine now, 
with the assumption that if you don't, you will later, with ruined hard 
parts. Or see if you can get the pan off and pop a bearing cap or two. I 
dunno though, cam lube is dead critical at start up. Did you use 
high-zinc lube on everything at assembly?

Sorry, I think no one wants to say anything so depressing. Maybe the 
more-optimistic will slap me down here. I do tend to be on the paranoid 
side when it comes to assembly.





Greg DePratt wrote:
> Finally got my 343 back together and in my Javelin.  Fired it up and found
> that I am not getting any oil pressure....bummer.  So I checked my oil
> pressure gauge and it is working.  Next I checked the oil pressure gauge
> tube and also removed the tube from the port.  Some oil will come out of the
> port while it is running but not a lot.  Next we removed the distributor and
> turned the oil pump with a drill, thinking maybe the pump didn't get primed
> properly.  Still no oil pressure.  After scratching our heads for a while we
> remembered that the local machine shop sent the block back to us without any
> of the plugs in it.  Usually they put the plugs back in the correct spots
> before giving it back. We installed all the plugs we had but were unsure on
> the two plugs at the front of the engine under the intake.  With the drill
> turning the oil pump we see a lot of oil flowing while looking into the oil
> fill tube.  Is this the souce of my low oil pressure problem?  Thought I
> would ask the experts before I pull the intake and have to buy a new gasket.
> 
> The total run time for the engine so far was less than 5 minutes.  Do you
> think I could have damaged anthing?
> 
> If it is those plugs that I need to fill, does anyone know what size they
> are?
> 
> Thanks for you help!
> 
> Greg DePratt
> 68 Javelin SST
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