Dave, you are correct. Once the bowls are full and the floats rise and close
off any further fuel flow, the pump lever doesn't move the diaphragm but
flops up and down without resistance.
If all gaskets are good and the needle valves are doing their jobs, you
probably won't be able to force more fuel into the carbs.
Also, you may be aware that even if the bowls are empty, the pump lever
won't do anything if the engine cam is in a position that keeps the pump
arm from being moved by the external lever. In that case, you have to rotate
the crank until it's at a position where you can feel resistance to moving
the lever ( again, assuming that the bowls are not already full).
Tom
----- Original Message -----
From: "Dave Connitt" <dconnitt@fuse.net>
To: <triumphs@autox.team.net>
Sent: Friday, September 13, 2013 6:28 PM
Subject: [TR] Sanity Check on Moss fuel pump
> OK,
> I am getting real close to starting my TR4A for the first time in 13
> years..
> Checking for possible fuel leaks, I put a couple of gallons of gas in the
> tank
> and using the priming lever on my new Moss fuel pump, I was able to fill
> the
> carbs. However, after a few additional pumps of the priming lever,
> suddenly
> nothing is happening when I press down on the priming lever. I am assuming
> that the carbs are full and when I press down on the lever, there is no
> room
> for more fuel so nothing happens...
> I went back upstairs to eat dinner and will see if I can bleed off some of
> the
> fuel and see if the pump will replace the fuel. I am just making sure that
> I
> won't toast my new camshaft by not running the engine for 20-30 minutes to
> seat the cam lifters by running out of fricking gas.
> Am I worrying too much or what?
> Thanks,
> Dave Connitt
>
> ** triumphs@autox.team.net **
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