[Shop-talk] clean used engine before use?

[Steven Trovato]

Well, even if I used a solvent, I would still put 
oil in it and pressurize the oil system before 
starting.  Bearings and valve guides will be 
lubricated with oil, with perhaps a slight trace 
of solvent.  Then the quick oil change should 
take care of that.  I agree that kerosene would 
be a particularly low risk choice.

At 09:47 PM 4/1/2021, John Innis wrote:
>I have not had an engine sit "open" for this 
>long, but for shorter durations, even in dusty 
>shops, I usually just blow off the surface dust 
>with an air hose, put clean oil in, run it for a 
>short time, and then change the oil and 
>filter.  I don't like to use solvent on a motor 
>that I am not going to completely tear 
>down.  Kerosene would not be bad, as it still 
>has some lubricating properties.  Anything more 
>volatile than that and you risk scoring bearings and valve guides on startup.
>
>On Thu, Apr 1, 2021 at 3:26 PM Steven Trovato 
><<mailto:strovato at optonline.net>strovato at optonline.net> wrote:
>I have a 4 cylinder MG engine that was removed from a car in good
>working order.  I know the previous owner and I trust him.  The
>engine has been stored without valve cover, oil pan, manifolds, etc
>in a working garage.  It basically just sat in the corner for a year
>or so.  I would like to use this engine as is, without disassembling
>further.  My question is, how would you clean this before use?  I
>could use a hose, but I am concerned that water will get trapped in
>inaccessible places.  I also considered spraying it down with
>WD-40.  They make a "big blast" version with a wide area
>spray.  There isn't any major dirt I'm trying to deal with, but I
>figure a couple of grains of sand could have landed in it
>somewhere.  It seems like a rinse would be a good idea.  Thoughts?
>
>-Steve T.


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