[ROVERNET - UK] rover p4 rocker assembly questions

[phing]

Linus
 The replacement rocker bushes were supposed to be pressed into place , reamed to fit the rocker shaft ,  then drilled for oil flow 
. Oil is supposed to flow from the small hole on top of the rocker arm . I would redrill the small holes .People make all sorts of " 
improvements " when rebuilding Rover engines . My P3 Rover engine , the grandaddy of the P4 had  home made "oil flow restrictors" to 
cut the flow from the big ends to the cylinder wall . I have no idea why this modification was made . The samre genius machined down 
oversized pistons to fit standard bores , but forgot to remachine the ring grooves. Result ? the rings din't fit the pistons 
properly and oil consumption was horrific. The engine survived this butchery and ran well after a complete strip down and rebuild 
Truly the Bodgers Brothers were every where  in Rover land
Cheers
 Patrick
----- Original Message ----- 
From: "Linus Tremaine" <travellak1 at netzero.net>
To: <rovernet at lyris.ccdata.com>
Sent: Thursday, February 14, 2008 8:31 PM
Subject: [ROVERNET - UK] rover p4 rocker assembly questions


Hi,

I have a land rover with the rover p4 110 engine with weslake head.

My rocker assembly is at a machine shop right now being rebuilt. The problem is this:

The old rocker bushings have a small hole in the bottom and a much smaller hole at the top. The new ones do not.

The rocker arms themselves have a smale hole in the top as well. On some of the rocker arms, the hole has been peened shut as if 
with a small hammer. The machinist thinks this may have been in order to slow the wear on the bushings and rocker shaft. Imagine 
that the oil is traveling up through the shaft into the bushing and out the top. If one was to close the path exiting the top, the 
oil would be forced out the sides of the bushing thus providing more oiling...? Just a theory.

Anyway, do the holes in the bushing need to be there?

Whats going on?
Thanks,
Linus
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