[Mgs] tappet question (Clayton Kirkwood

riverside at southslope.net riverside at southslope.net
Mon May 18 10:30:05 MDT 2015

inspect  the rocker arm tips for wear (wear appears in the
form of "divots" in the rocker arm that prevents the feeler
gauge from giving accurate readings) and repair as

art d

-----Original Message----- 
From: John Di Fede via Mgs
Sent: Sunday, May 17, 2015 8:37 PM
To: mgs at autox.team.net
Subject: [Mgs] tappet question (Clayton Kirkwood


When set properly, he feeler gauge should be snug and yet able to slide
between the valve stem the rocker arm without binding.   Setting the
clearance too tight may prevent the valve from closing completely, too loose
and the valve will not open completely.

I think a SLIGHT tapping nose in the valve train is OK.

John DIFede

1973 MGB

When I went to reset the tappet clearance, I found the old settings rather
sloppy. I reset them so that the gauge was snug - it slid in but it
definitely tight. Which is correct? I know that it makes a difference on
performance and full combustion. Yes, I did the checking while hot.



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