[TR] Hole in the side of 2 tappets

Tony Drews tony at tonydrews.com
Sun Sep 15 08:11:03 MDT 2019


Paul, some of the "competition grade" tappets have an oil drain hole 
drilled as you describe.  They are fine as long as the surface that 
rides against the camshaft isn't pitted or damaged in some way.  It does 
indicate that they are not original, or if original that someone drilled 
oil drain holes in them...

Regards, Tony Drews

On 9/15/2019 8:39 AM, Paul Dorsey wrote:
> I had a chance this afternoon with my engine head off to take my solid 
> tappets out of my TR3 engine.  To my bewilderment two of the eight 
> solid lifters had holes in them, both holes were about 1/8" or larger, 
> and it looked as if they were drilled into the tappet at an angle and 
> they were in the side of the lifter and about 1/2" from the bottom; I 
> took a picture of one of them and I will try and post it, ISTR that 
> this list maynot allow pictures?  The picture must have failed.
>
> I quess they need replacing?  What causes this?
>
> Paul Dorsey  60 TR3
>
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