TR2/3/3A 1960 TR 3A Idle adjustment help

[Tinkerman]

My engine now sarts and runs, yeah! Temp got to to about 185, oil pressure at about 60 and holding, but the tach was reading about 4000 rpm. How do I adjust the idle speed. I would like to run it in at about 1500 to 2000. How do I go about adjusting it?

Thanks, Tinkerman

 

[Moseso]

There is an idle adjustment screw (sorry, no picture handy) on the side of each carb. It would be a good place to start. Undo the linkage between the carbs first. They are going to have to be balanced anyway, as part of your initial adjustments. There must be a thousand posts around here on how to adjust the SU carbs....

 

[NutmegCT]

Here's the Practical Hints booklet to download and save; it gives a step by step on adjusting the H6 carb on page 33.

https://www.triumphtr.com/manual_tr3.pdf

Here's an online version:

https://docs.google.com/file/d/0B2H...M2U2LWJhYWUtMjEyZDgxMzUyNzUw/edit?usp=sharing

Hope this helps!
Tom

 

[Member 10617]

Dick,

Idle at 1500 to 2000 rpm seems rather high. Shouldn't it be between 700 and 1000 rpm?

 

[TR3driver]

Here's an online version:

https://docs.google.com/file/d/0B2H...M2U2LWJhYWUtMjEyZDgxMzUyNzUw/edit?usp=sharing

FWIW, you can also download the "online version". Click on 'File' at the upper left corner and choose 'Download'. Unlike the other one, that one is text searchable and not write-protected (so you can add your own comments if you like).

Let me know if you find problems or things that you feel are missing. I do maintain it from time to time.

 

[TR3driver]

Dick,

Idle at 1500 to 2000 rpm seems rather high. Shouldn't it be between 700 and 1000 rpm?

The 1500 to 2000 would be for initial break-in of the camshaft.