[Roadsters] Unsticking an engine (was: Second Posting)

[May, Frank]

I plan to tear it down and have a machinist do a rebuild.  He has agreed to do
the labor; I supply the parts he needs.  However, he wants the pistons free
before I turn the motor over to him.

Top of the motor under the valve/cam cover looks good.  The only rust is see
is a spot on the cover about the size of a dime, and it's only surface.  I
suspect most cars which are run every day have more.  I guess that's a good
sign.

Pepsi contains phosphoric acid which attacks iron oxide without attacking iron
metal.  It's the active ingredient in many rust inhibitor products.  Thanks
for the advice for a cheap alternative.....

Frank
Frank.L.May at umsl.edu
SRL311-12936

________________________________

From: John F Sandhoff [mailto:sandhoff at csus.edu]
Sent: Tue 8/25/2009 12:47 PM
To: May, Frank
Cc: datsun-roadsters at autox.team.net
Subject: Re: Unsticking an engine (was: Second Posting)




> My '69 2000 has been sitting since about 1974 when the motor was
> last turned over... I put a wrench on the vibration damper nut and tried
> to turn, but it's stuck.

Diet Pepsi. No kidding - google it.

But you'll need to figure out how to clean it out, if you're not
doing an immediate teardown.

I'd also suggest you pull the dizzy and spin the oil pump (CCW)
to get some lubrication into the bearings.

-- John
     John F Sandhoff   sandhoff at csus.edu   Sacramento, CA