[TR] TR4 in Perry Mason episode

[DAVID MASSEY]

 If the stumble happens immediately upon throttle opening it is not fuel delivery.  The float bowls hold enough fuel to run the engine for a few seconds even at full throttle with no fuel delivery at all.
Here is an easy thing to try even if it is off the wall:  Swap out the distributor rotor.   I've heard said that the rotor can fail in a manner where it will withstand the voltage required to generate a spark at the lower pressures at idle but will break down under the voltage necessary for heavier throttle positions.
Happy Drive Your Triumph Day.
 
Dave 

 
 
-----Original Message-----
From: staffel <staffel at comcast.net>
To: triumphs at autox.team.net
Sent: Wed, Feb 9, 2022 9:00 pm
Subject: [TR] TR4 in Perry Mason episode

Season 8 Episide 2"Xase if the Paper Bullers"5:44 into episide: White TR4 comes out of Mansion Gate hits old cargo Truck. Called 'little foreign job' in later testimony.
Sherman D Taffel TR4 CT50054Lin Fuel system surgery *Columbia MD & Goldvein VA 
* after rebuilding carbs and installing new elec fuel pump, engine stalls, backfires upon acceleration of throttle plates. Nothing wrong with carbs ( Original CD 175's. Fresh rebuild with all new Joe Curto parts. 6th rebuild since 1969.  Convinced its NOT the Carb operations. No throttle shaft air leaks nor intake manifold air leaks. Pistons lift normally.
ANALYSIS points to low fuel delivery- yet fuel gauge measures 2.5# at input to front & rear carbs.
Never ran into this in 53 yrs. But putting thus out there fir comments/ thoughts!
Should I try reinstall of a new Manual pump. Went to electric when bought defective leaking TRF pump several years ago. Know TRF has new supplier.
Just want engine to respond properly & have TR ready for late Spring!
Sherman
Sent via the Samsung Galaxy S10, an AT&T 5G Evolution capable smartphone
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