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

[Frank Fisher]

 Paulwhere do you live?if i recall your in the south. Georgia maybe?im sure there will be a triumph club close by. most guys will give up an hour to look at your motor for the cost of a couple beers.well you will have to join the club also. but the camaraderie of the club will pay dividends 10 fold, and you'll make some great new friends.
frank



    On Saturday, September 22, 2018, 6:31:21 AM PDT, Paul Dorsey <dorpaul1 at gmail.com> wrote:  
 
  I think   I am in over my head so to speak, and that may be a simple task but I  don’t want  To foul up my engine rebuild.    Rather then put my untrained  finger  on the valve  train, can I just pop off the distributor cap and see if it’s pointing At number two  to see if it is at its lowest point of travel? 
On Sat, Sep 22, 2018 at 6:26 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  


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