Re: Engine startup and break in (long)

["Daegrigg (Don)" <daegrigg@xxxxxxxxxxx>]

I have used the Hastings' procedure with very good results.

Don

----- Original Message -----
From: Jon Pike <jhpike@domain.elided>
To: <alfa@domain.elided>
Sent: Sunday, July 13, 2003 3:16 AM
Subject: Re: Engine startup and break in (long)


> > >Like the breaking in new cams..  I've never heard about that.
> >
> >
> >This is for new cams or followers, if you're reusing the old stuff in
their
> >original positions, you can skip this step.
> >
> >The new cams and followers need to get used to one another (that's a
> >technical term) so one usually starts the engine and keeps it at about
1500-2000 rpm's
> >for about 20 minutes. The "high idle" speed is because the engine oiling
> >system isn't efficient enough for this purpose at regular idle speed
(about 900
> >rpm). Use plenty of cam lube before the engine is started.
> >
> >
>
> Not an issue for me, since the cam's and followers are not new.   I can
> understand that such a run could have that desired effect.  But,  I also
> have heard from several sources that the one guaranteed way to get your
> rings and liners to glaze and then forever burn oil,  is to start the
> new engine and let it idle (slow idle?) without load for a length of time.
>
> I have no idea how accurate that information is.
>
> Hmmm... went to the Hastings ring company site, which I remembered to
> have a lot of tech info: http://www.hastingsmfg.com/service_tips.htm
> and they mention a procedure for ring seating that has a similar
> sounding startup procedure..  with a fast idle to warm up.  They then
> have you go to driving it at a moderate speed with short cycles under
> full throttle to put load on the pistons and rings.
>
> So it would seem that the fast idle isn't a bad thing.
>
> I'd appriciate info from any pro builders out there on the subject..
>
> Jon
> 77 Spider
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