[Healeys] Break in procedure

[HealeyRick]

Larry,

I don't think your procedure addresses the need for cam and lifter break-in, 
Most cam manufacturers recommend running at 3000 rpm at start-up and varying
engine speed for about 1/2 hour.  I'd also want a ZDDP rich oil or additive in
there as well.  Here's Crane's recommendations
http://cranecams.com/uploads/breakin/548e.pdf

Rick


Follow My Nasty Boy Build:  http://tinyurl.com/yj52fwo

--- On Fri, 6/29/12, Larry Varley <varley at cosmos.net.au> wrote:

From: Larry Varley <varley at cosmos.net.au>
Subject: Re: [Healeys] Break in procedure
To: healeys at autox.team.net
Date: Friday, June 29, 2012, 5:23 PM

I have to agree with Rick here, if the engine is properly reconditioned with
correct clearances, very little breaking in is required. Crank the engine with
plugs out until you have oil pressure, start up, run up to operating
temperature, check mixture and check timing during that time, switch off, re
torque the head and reset valve clearances, and change the oil and filter
after 100 miles. I definitely wouldn't use any molybdenum disulphide products
during assembly as it can inhibit bedding in of the rings. I agree with Gary
in that you should avoid any sustained running of the engine with no load, as
this could promote bore glazing. Basically get out there and drive it.
My 2 cents worth :)
Cheers
Larry
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