[Healeys] [Fwd: Oil Pump]

[richard mayor]

Hello Ed.  Thanks for your response. My problem is that not everything I 
write gets to the list. For example, I responed today first with a "test". 
It went to the list. Then I wrote what appears below. It did not go to the 
list. Thanks, Richard


>From: "E.A. Driver" <edriver at sasktel.net>
>To: richard mayor <mayorrichard at hotmail.com>
>CC: Austin Healey list <healeys at autox.team.net>
>Subject: Re: [Fwd: Oil Pump]
>Date: Fri, 29 Jun 2007 14:05:18 -0600
>
>Hello Richard
>Very interesting and most informative. The information you provided here 
>should of
>  appeared in your initial post rather than the form it appeared.
>
>Kind regards
>Ed
>
>
>richard mayor wrote:
>
>>Dear Mr. Driver: You have missed the point. I made it clear at the outset 
>>that I have been racing my Healey 3000 for over 25 years. I shift at 6000 
>>RPM. I have personally lost two engines because of the rotor style oil 
>>pump. The exact same thing happened in both cases. The force required to 
>>drive the rotor pump at high RPMs will grind the teeth off of the drving 
>>spindle and the cam. The cam will be pushed forward and grind its way into 
>>the thrust plate - over 1/8th inch. Eventually the teeth are half gone and 
>>no longer able to mesh enought to drive the pump. The resultant metal in 
>>the oil has now ruined the bearings. I am not the first racer to have 
>>encountered this problem. I know of many others who have lost engines 
>>because they also believed that the rotor pump was the trick thing for 
>>racing, especially when a well known Brit claims that the rotor pump is 
>>safe to 6000 RPM. Some years ago Jeff Jonk wrote a well researched article 
>>about these pumps. He even made a test bed. This article appeared in 
>>Healey Marque (might have been Chatter at the time). Unfortunately, this 
>>article appeared too late for me to benefit as I had already discovered 
>>his findings  - the hard way!  As a research scientist I believe you will 
>>appreciate the methodology in the Jeff Jonk article. In bringing this 
>>issue to the members of the list, it was my intent to educate and protect 
>>the listers from using the 100-6 oil pump in engines built for serious 
>>use.  Sincerely, Richard Mayor, Portland, Oregon  - 1959 BN7 Vintage Racer 
>>#466 (holder of the track record for an Austin-Healey at Road America - 
>>established 2002)
>>
>

_________________________________________________________________
Make every IM count. Download Messenger and join the im Initiative now. 
Its free. http://im.live.com/messenger/im/home/?source=TAGHM_June07