[TR] IS THERE ANY SPOT ON THE ENGINE'S ROTATION WHERE THE TAPPETFALLING OUT...

[Rye Livingston]

I agree with all that.  Something to keep in mind is that what is happening is suction.  The end of the pushrod is fitting snugly and perfectly into the tappet.  Add some oil into it and you've got this connection that when you pull up on the connecting rod, it's the oil and this perfect fit into the cup of the tappet that creates the suction fit you need to break.  So to Randall's point of having the tappet low, that will give you more travel pulling up to break that suction before the tappet comes out of it's slot.

As Randall said, worst case is you'd have to take the head off, but as I said, I had this happen to me and with some patience, a long screw driver, I was able to get mine back into place in about 5-10 minutes, with a fair amount of cussing at it the whole time.

Good luck

Rye



On Sep 22, 2018, at 03:37 AM, Randall <tr3driver at ca.rr.com> wrote:

Several of you told me there might be a danger in simply
removing this pushrod as it may create a kinda "suction"
effect, and if I am not careful when removing it, it may
'pull' up it's tappet riding on the cam causing it to fall
into the engine. However, I do need to pull out the pushrod
to make sure it's not bent. IS THERE ANY SPOT ON THE
ENGINE'S ROTATION WHERE THE TAPPET FALLING OUT IS LESS LIKELY
TO OCCUR?

The tappet won't fall "into the engine", it remains right there in the open
space above the bore where it belongs. Not a calamity, it just means you
have to remove the head in order to put the tappet back in place.

It's slightly less likely to pull out if you turn the engine so the tappet
is at it's lowest point of travel (where the valve would be fully closed).
You can get this by turning the crankshaft until both valves are open on the
opposite cylinder (in the firing order). (If the rocker shaft is off, rest
a finger on top of each of the opposite cylinder pushrods, so you can feel
when they are both moving. The tappet/pushrod combo may or may not fall down
of it's own weight, light finger pressure will ensure they go down.)

But the lifter can still pull up, so you still need to lift the pushrod a
small amount and spin it until the bottom comes free. When it's free, the
bottom will move around slightly and rattle against the sides of the lifter;
that means it's safe to pull it out. The difference in weight is also very
noticeable, but I don't supposed you have a spare pushrod to compare it
with.

-- Randall 

** triumphs at autox.team.net **

Donate: http://www.team.net/donate.html
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive

Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/ryel@mac.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/triumphs/attachments/20180922/7d755019/attachment.html>