On Wed, 21 Sep 1994, Jeff Haferman wrote:
> Turns out that I also cracked my crankshaft after driving the engine
> [stuff deleted]
> and today (1 year later!) I picked up the rebuilt engine. He welded
> the crankshaft back together, and then machined it.
He welded a broken crank back together??? Welding to build up bady worn
bearing journals is a fairly common procedure, but I've never heard of
repairing a broken crank by welding.
> 1) The machine shop already primed the engine with oil (something I didn't
> know about!), so I don't have to worry about this.
Yes you do. By the time you get the engine back in the car and ready to
fire up for the first time, most of that oil will have run out of the oil
galleries. One would hope that the machine shop used an assemby lube of
some kind on the bearings and other friction points, but even so it is
best to pump the galereies full of oil before firing up for the first time
to ensure the fastest possible delivery of oil to all those nice new
parts. The easiest way to do this in most home garage situations is to
crank the engine with the starter motor with the coil wire disconnected
until pressure registers on the oil pressure gauge. Then reconnect the
coil wire and fire her up.
-----------------------------------------------------------------------
Chip Old 1948 M.G. TC TC6710 NEMGTR #2271
Cub Hill, Maryland 1962 Triumph TR4 CT3154LO (daily transportation)
feold@umd5.umd.edu
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