[DeTomaso] oil injector question

[Christopher Kimball]

Very interesting.  I guess the moral of the story (so far) is that I'm not risking life and limb of my engine by not having an oil injector.

Now if I can just get the car to stop ejecting drips of oil on the ground...(ever since I got it back from the "thrash mechanic" who supposedly got the rear main seal oil leaked fixed, it drips from the filter, the drain plug, and--I'm afraid to say this--maybe even a bit from the rear main seal, again.  I have no idea what kind of oil he put in; probably vegetable oil!)

Sincerely,

Chris
3846

From: jderyke at aol.com
Date: Fri, 18 Dec 2009 13:58:18 -0500
Subject: Re: [DeTomaso] oil injector question
To: chrisvkimball at msn.com; detomaso at realbig.com

In a message dated 12/17/09 11:53:38 PM, chrisvkimball at msn.com writes:



A friend of mine who has a TR-7 with a V-8 in it said he added a device that shoots oil into the engine right before it starts.  He said most of the wear an engine experiences happens at the start when there's no oil distributed throughout the friction areas.





He's right, but over 75% of start-up engine wear is between the cylinder walls and the rings. So if the 'oil injector' is sending oil somewhere else- especially into the combustion chambers ala 'mystery oil'- you're not getting much if any benefit. 

FWIW, that was supposed to be one of the uses of an Accusump when it was first developed: you open the valve each time before starting the engine. When oil pressure began to show on the gauge, fire it up. I built one from a convertible top motor and its 1-qt bucket back in the '60s. 

Problem with all these devices is, you're trying to 'prove a negative': the only way you'll know you're getting any benefit at all is if the engine lasts longer than normal- whenever that may be. Not many bragging rights there during bench-racing sessions..... My 2¢- J Deryke