• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

TR6 Hesitation, while turning, I'm stumped.

Share this page

Well, after cleaning up the carbs I had the bottom end of the carbs checked out by my mechanic. So, the floats were adjusted and the needle slightly raised. Nope, still does it. I am getting to the point where I am going to blow cash on Webers...
 
I can't see why turning a corner would have an effect on fuel flow. Does it happen turning right and left, or just in one direction? Refresh my mind, are these ZS carbs?
 
Many years ago Ken Gillanders from British Frame and Engine wrote about a TR3 which kept hesitating and missing on turning corners. He went through the car and couldn't find anything wrong until he noticed one of the engine mounts had rotted out. The engine was moving / rotating on corners and interrupting fuel flow.

I realize it is a long shot, but I thought I'd at least throw it into the mix.
 
To me, this sounds more relatable to ignition. Maybe a loose wire, bad coil, cap, or rotor. I had a lot of minor, unexplainable performance issues when I had the original points setup. I changed to the Pertronix ignition, very reasonably priced, and all the sputtering, missing, and momentary loss of power is gone. I have three ZS, and that’s an even greater invitation to problems. Has there been any change to the ignition system yet?
 
PDIGIO_6x3 said:
To me, this sounds more relatable to ignition. Maybe a loose wire, bad coil, cap, or rotor. I had a lot of minor, unexplainable performance issues when I had the original points setup. I changed to the Pertronix ignition, very reasonably priced, and all the sputtering, missing, and momentary loss of power is gone. I have three ZS, and that’s an even greater invitation to problems. Has there been any change to the ignition system yet?
Click to expand...
Pertronix Ignitor, Pertronix coil. The ignitor is decades old. I may, at this point, change it out just to see. The coil is new.
 
auprichard said:
Many years ago Ken Gillanders from British Frame and Engine wrote about a TR3 which kept hesitating and missing on turning corners. He went through the car and couldn't find anything wrong until he noticed one of the engine mounts had rotted out. The engine was moving / rotating on corners and interrupting fuel flow.

I realize it is a long shot, but I thought I'd at least throw it into the mix.
Click to expand...
I replaced the engine mounts about 10 years ago. Doesn't hurt to check again...
 
PDIGIO_6x3 said:
I can't see why turning a corner would have an effect on fuel flow. Does it happen turning right and left, or just in one direction? Refresh my mind, are these ZS carbs?
Click to expand...
Left, ZS dual carbs. Rebuilt and cleaned last year and again this year.
 
I apologize, just saw this reply. We're on two different posts. Let me ask you, did you notice how high up your rotor is sitting after you installed the Pertronix? Did you replace the original rotor? I know that there can be a condition where the center contact for the cap is compressed into the cap excessively because the rotor is sitting up higher than it should.
 
PDIGIO_6x3 said:
I apologize, just saw this reply. We're on two different posts. Let me ask you, did you notice how high up your rotor is sitting after you installed the Pertronix? Did you replace the original rotor? I know that there can be a condition where the center contact for the cap is compressed into the cap excessively because the rotor is sitting up higher than it should.
Click to expand...
Rotor and cap have been replaced. The rotor is pushed all the way down on the post. The rotor arm is not loose.
 
BwanaJoe said:
Rotor and cap have been replaced. The rotor is pushed all the way down on the post. The rotor arm is not loose.
Click to expand...
Have you tried turning a full circle and see what happens?
Does the car die and stay that way or pick back up?
You may need to make this a big circle to get the RPM you need. Also try letting off the gas momentarily and then hit the gas.
If you think about the mechanics of this operation. You normally approach the corner and let off the gas. Then hit the gas midway in the corner.
That is why the full circle test might tell you something.
Charley
 
Back
Top