[Healeys] Oil

[Bob Spidell]

Thanks, Kees.

I'm hearing/reading everywhere that the proper procedure for bedding-in 
cams and lifters is to run at 2,000 RPM give-or-take for 20 minutes.

bs


On 8/27/2016 11:32 AM, Oudesluys wrote:
> When rebuilding engines I have always thickly coated the bearing 
> surfaces, and cam lobes using Graphite or Molybdenium grease. At first 
> start up I disconnect the ignition until I have oil pressure, than 
> idle the engine until warm after which I would drive at moderate speed 
> and load for about 100miles. Never used running in oil , just the 
> prescribed oil. Then drained the oil and fitted a new filter and 
> filled up with fresh oil. Again another few thousand miles at moderate 
> loads, oil and filter change after which speed and load were gradually 
> increased until about 5000miles before full speed and load were 
> applied. After a rebuild I never encountered any other wear issues on 
> any engine. Some engines did more than 250.000 miles after that. The 
> only thing that wore were the cylinder walls/rings/pistons and 
> valves/seats.
> This is for road cars. Racing/rally cars are supposed to need a 
> different approach, however even with engines that were raced I never 
> went beyond the original procedure.
> Kees Oudesluijs
>
>
> Op 27-8-2016 om 18:36 schreef Bob Spidell:
>>
>> Don't know if you know it, Michael, but you 'started' a long thread 
>> on the Forum about this (Steve Gerow re-posted a link he got from you):
>>
>> http://www.britishcarforum.com/bcf/showthread.php?105991-Very-interesting-very-long-blog-posting-racing-oil-and-zinc
>>
>> This guy's research, while impressive, has been disputed here:
>>
>> http://www.corvetteforum.com/forums/c3-tech-performance/3266544-zinc-myth-and-test-data-on-a-dozen-more-oils.html
>>
>> This is of major interest to me, as I'll be rebuilding my BJ8's 
>> engine in the near future.  I've run it on off-the-shelf dino 
>> 20W-50--Castrol, Chevron (mostly) and Valvoline--for almost 120K 
>> miles so it will be interesting to see what the internals look like 
>> now (also want to see what deposits, if any, the PCV valve has caused 
>> in the intake system).  #2 has low compression and we'll see if cam 
>> lobe wear is the cause.
>>
>> Agree with Chris on the cam lube.  I bought a bunch of GM EOS 
>> assembly lube way back when and I'm tempted to pour a bottle down the 
>> pushrod tubes before first startup.  Thoughts (of course, I'll use 
>> assembly lube on the cam and all moving surfaces)?
>>
>> Also, I'm leaning towards buying a cam from Denis Welch, which they 
>> say is 'gun-drilled' which, I presume, means the cam is lubricated 
>> internally and supplies a stream of oil to the lobes.  I'll probably 
>> also go with their bucket lifters which have a hole on the bottom to 
>> supply yet more oil to the lifter-lobe surfaces.
>>
>> I'm interested in hearing any and all thoughts and experiences on 
>> engine assembly and break-in.  I'm going all-in on this 
>> rebuild--it'll be the last for this car (I hope)--and my dad wants a 
>> friend of his who owns a racing engine shop to do the major work ($$$).
>>
>> Bob
>>
>>