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TR6 75 TR6 vacuum hose question

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irishcasey

Freshman Member
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Hi,

Re installed my cleaned and sealed fuel tank tonight along with new fuel filter. Thinking (hoping!) that the old,gunky gas/clogged fuel filter was what was causing the TR to lose power and die after being driven for 15 minutes or so.

Upon test drive tonight totally bummed out when lost power and had to nurse it home after about 15 minutes of fine driving. Drove great initially and then all of a sudden loses power.

Looking at the engine I noticed that the vacuum hose that runs from the distributor retard to the fuel trap attached to the valve cover gasket by the thermostat and then on to the forward most carb was totally disconnected from the metal nipple on the bottom of the carb.

To late to take another drive tonight. Wondering if anyone can tell me if this could cause the loss of power, liked starving for fuel.

If not, any other ideals are appreciated.

Thanks !!
 
Not likely that line is the problem, IMO.

Have you tried hooking up a fuel pressure gauge, so you can monitor it when the problem is happening? Most vacuum test gauges will also read fuel pressure, like this one:
https://www.ebay.com/itm/Sears-VACUUM-GAU...ies&vxp=mtr

(Just happened to catch my eye because that's the exact gauge I've owned for several decades.)

And you can easily add enough line to bring it out from under the hood and prop it up under windshield wiper blade during your test.

If you haven't already, I would also swap out the condenser. They sometimes open up when they get hot. While you are in there, temporarily disconnect the point plate ground wire and check it for continuity while gently tugging on it. They sometimes break internally and lead to strange problems.

And just to eliminate the ballast wire, I would try temporarily "hot wiring" the coil (connect a temporary jumper from coil + to battery +). You don't want to drive that way for very long, but 20-30 minutes should be OK (assuming you are still running points, don't do this with a Pertronix).
 
I would make sure the vent line from the fuel tank is open.
You can flip the gas cap open and see if the engine continues to stall as a diagnostic procedure
Sometimes just a bit of gasoline from over filling will find it's way into the belly of the vent line and block it. If that happens the ammount of gas reaching the fuel pump will be greatly reduced.
You can open the gas tank cap, disconnect the vent tube from the Carbon Canister and blow air into the vent until uyou hear air hissing in the filler neck to clear the blockage.
 
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