John,
Since we are talking about solid lifters here, a little noise is normal.
If you get them too tight to eliminate the noise, you might not be
letting the valves close all the way and end up burning a valve.
Personally, I'd prefer a little noise than having to make repairs. And
I'd go with the .010 the book says.
My .02 worth.
Joe
-----Original Message-----
From: owner-triumphs@autox.team.net
[mailto:owner-triumphs@autox.team.net] On Behalf Of john & patricia
donnelly
Sent: Wednesday, July 02, 2003 12:54 PM
To: Triumphs List (E-mail)
Subject: Valve Adjustments + Pushrods
I finished adjusting the valve clearances on my TR4A, started it up and
heard a tapping sound. Rechecked the clearances. Still had tapping
sound. Pulled the rocker cover and ran the car without the cover to
isolate the culprit (not a pleasant task!). #2 exhaust. Readjusted
again. Still tapped.
Playing around with the rocker I could get it to make a metallic tapping
sound, so I pulled the rocker shaft assy and found the pushrod had a
loose ballcup. Not sure if this was an issue or not, but I filled the
pushrod up with oil, put everything back, adjusted one more time and the
tappings gone!
But, #4 now was tapping. After several attempts of adjusting to
different clearances it seemed that .007" seemed best for noise, not the
.010" like the manual claims. The cam is stock.
Couple of questions came to mind as I went through this. 1.) Was I
really adjusting the valves correctly? Or, can someone tell me how they
do it? 2). The pushrods have a hole in the ballcup but nothing at the
other end (tappet). Should they be filled with oil? If yes, how can you
get it in there when the hole is so small? Most of the pushrods ballcups
would not come off, thus my last question 3) Should they come off and is
this an issue?
Thanks!
John in San Diego
'67 TR4A IRS
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