Rebuild was done by a company that does only waterboxer rebuilds.  I assumed
everything was new but don't know.  I never thought of revving the engine no
load but going down the road.

If an engine were old 800 miles to a qt. wouldn't be a reason to tear it
down but this was a new rebuild.  Should have sealed better.  It's up to
1500 a qt now and I guess I'll live with that rather than pull the engine
and have the rebuilder put a new set of rings in [his suggestion]

Glad to hear about the rod bolts, I hope he used good ones.

Mike

On 1/29/03 3:36 AM, "Robert Donalds" <bostneng@FCL-US.NET> wrote:

> Mike and the list
>
> while its not uncommon for new rings to take there time seating I asked myself
> a couple of questions as I read this thread. First did this rebuild include
> new pistons and cylinders or just rings. what brand rings ? and did the
> cylinders get straightened with a ridged honed and measured or did they only
> have the a light hone to brake the glaze in hopes of the rings sealing. 800
> miles to a quart of oil is not a reason to take the engine apart but you need
> to keep a eye on the oil level.
>   The idea of revving the engine with no load on it at 5K and holding it there
> is foolishness even if you had a load on it  that's no way to treat an engine.
>   The clearance of the piston to the cylinder cold is approximately one 1/3
> the thickness of a dollar bill and in all my engines I remove the pistons
> rehone the cylinders and add .001th at least to fit clearance this also gives
> me a chance check the rings and insure the cylinder is round.
>    The 2.1 engines originally had a stretch to yield con rod bolts and that is
> a problem that develops over time not due to the RPM.  On my rebuilt engines I
> use the 1.9 rod bolts when I rebuild the con rods because I fell that is a
> better bolt over the long run based on the measurements of the countless used
> 1.9 and 2.1 rods I have inspected.
> The fuel mixture if set to rich can dilute the oil and this could increase the
> oil consumption and prevent the rings from sealing
> Bob Donalds
> http://www.bostonengine.com
> all rights reserved
>