[Healeys] Oil Additives

Tue Apr 28 14:40:23 MDT 2020

I agree with Bob and think this is a perfect example of what happens to
flat tappet cams without adequate zddp levels.
In 2007 before the effects of lower zddp levels in oil were well known I
lost a brand new race cam in my MGA-powered Courier in one weekend.

Best--Michael Oritt

On Tue, Apr 28, 2020 at 7:31 AM Tom Felts <tomfelts at windstream.net> wrote:

> Val VR1 20/50 racing oil--"High Zinc".  Been using in it my Healey and XKE
> for a long time.
>
>
> ----- Original Message -----
> From: Michael MacLean <rrengineer.mike at att.net>
> To: Wayne Schultz <waschu2 at gmail.com>, healeys at autox.team.net, Perry <
> healeyguy at aol.com>
> Sent: Tue, 28 Apr 2020 01:05:32 -0400 (EDT)
> Subject: Re: [Healeys] Oil Additives
>
> You can get "Mobil 1 V-Twin 20W-50" for Harley Davidson type motorcycles
> in a pinch.  It contains the ZDDP required for our cars.  If you want
> conventional oil I have used Kendall GT-1 Competition 20W-50 in my Healeys
> and MGB for years.  All the ZDDP you need plus other additives to protect
> your followers and camshaft at shutdown.  You can get the Kendall oil at
> Pacific Northwest or Amazon or directly from Kendall.  Search around the
> internet for the best price.  You can find it for half the price of the
> Mobil 1 V-Twin synthetic oil.
>
> British Parts Northwest Kendall GT-1 High Performance 20W-50 Oil
> <https://www.bpnorthwest.com/kendall-gt-1-high-performance-20w-50-oil.html>
>
> British Parts Northwest Kendall GT-1 High Performance 20W-50 Oil
>
> The correct motor oil is getting harder and hard to find for your Classic
> British car. Don't believe that the o...
>
> Mike MacLean
>
>
>
> On Monday, April 27, 2020, 6:53:28 PM PDT, Perry via Healeys <
> healeys at autox.team.net> wrote:
>
>
> Listers / Wayne
>
> I was thinking about the way the cam lobes are lubricated in the original
> configuration ( stock parts). Please chime in if this is way off.
>
> It would seem most of the lubrication comes from the steady drip that
> comes out at the rocker and runs down the pushrod. First the tappets
> (lifters) get some oil, then passes by the lifter and then on to the cam
> lobe.
>
> The oil dripping from the rocker shaft bushings drips onto the top of the
> head and drops through the pushrod holes to the lifter gallery. On some
> worn out engines this is a flood instead of a drip. Then you have the oil
> fog that is in the crank case/oil pan area when the engine is running due
> to the squirt of oil coming out of the piston rods big ends. The intent was
> to oil down the piston bores but coats pretty much everything.
>
> The bucket lifters, which by the way was an old hot rod trick from the
> early days of Austin Healeys, using lighter weight lifters out of a
> straight eight Oldsmobile (if I remember correctly) and longer pushrods may
> or may not be drilled to allow oil to the cam lobe/lifter face. Some guys
> used pressurized oil to squirt the interface when the bucket was not
> drilled. The bucket lifters sold years ago that did not have a hole in the
> lifters had failure problems. A hole was added but the problem with the
> drilled hole in the bucket it could clog and there was little to no
> lubrication of the cam lobes, thus major wear.
>
> I’m not suggesting that the can lobe failure was caused by a plugged hole
> in the lifter since I did not work on this engine. But it is a possibility.
>
> Perry
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
> *From: *Wayne Schultz <waschu2 at gmail.com>
> *Sent: *Monday, April 27, 2020 4:49 PM
> *To: *healeys at autox.team.net
> *Subject: *[Healeys] Oil Additives
>
>
>
> Hello everyone, I recently completed a rebuild of the engine in my Healey
> 3000. At 48K miles i noticed metal during an oil change. I dropped my oil
> pan and found even more metal and a silver ring in the block that lined up
> with a cam lobe. I had been using Mobil 1 for years and always had good oil
> pressure and a very quiet motor.  I pulled the motor and upon teardown I
> found one bad cam lobe and several lifters that had mild pitting.  I
> thought about how I used my car and came to conclusion  I, rather than the
> oil might be the  reason for the cam failure.  I drove my car every couple
> of weeks in nice weather. This is just enough time for the oil to leave the
> cam and lifters to drain into the pan. This meant the next time I started
> the engine the cam and lifters might have been metal on metal.  My new
> lifters are short bucket lifters with a drain hole to lubricate the cam
> lobes. Now using VR-1 20/50
>
>
>
>
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