[Healeys] Break in oil

goldengt goldengt at cal.net
Sun Mar 4 22:39:58 MST 2018

General motors break in oil from the Chevy dealer! or Ford probably has similar. Ken Freese 

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-------- Original message --------From: Michael Oritt <michael.oritt at gmail.com> Date: 3/4/18  5:32 PM  (GMT-08:00) To: David Masucci <drmasucci at comcast.net> Cc: Ahealey help <healeys at autox.team.net> Subject: Re: [Healeys] Break in oil 
Though I have never rebuilt my Healey's engine I have broken​ in several race engines (MGA and Coventry Climax FWB SOHC) using the same oil I planned to run with: Royal Purple Race Oil RP 40, and added a bottle of zinc additive just to be sure.  Before start-up I made sure the timing was where it should be, then poured oil over the rocker arm for the MGA engine and over the camshaft of the Climax, tightened down the valve cover and placed a cooling fan in front of the radiator so that in case engine temps began to rise I could avoid having to shut down, then ran the engine for 20 minutes at about 2K rpm's.  That's it--then drain and change the oil and filter, refill and you should be set!
Good luck--Michael Oritt

On Sun, Mar 4, 2018 at 5:48 PM, David Masucci <drmasucci at comcast.net> wrote:
Hi all,

Well I finally have my BJ8 engine almost ready to go back in the chassis. This rebuild includes minor mods including a Denis Welch DSW-8 cam and bucket followers (with pockets in the block) and high capacity oil pump. This cam is drilled to provide oil to each lobe. The engine was also balanced. Once broken in I plan to run 20W-50 Valvoline racing full synthetic with ZDDP, which I’ve run in my XJ6 since 2012 or so.

Based on what’ve I’ve read, I should start and run the engine at 2000 RPM for 20 minutes or so. My question is what should I use for break in? There are so many types. Does anyone have a recommendation?

Thanks as always.


64 BJ8

72 XJ6


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