View Full Version : Wedge 1980 TR7 ZS Carb rebuild advice (need some)

04-28-2006, 02:43 AM
Hola from San Diego, CA. As you can see I am a newbie and the new proud owner of a 1980 TR7 Convertible. A bit of background, the guy I bought it from has had it sitting in a carport (roof but no front) with the top down for over 2 years. But he was willing to part with it for $250, so who am I to complain. To say the least, the car was DIRTY!
To my surprise, after checking all fluids, etc., hooked it up to a starter unit, primed the carbs - wham, it fired up after two turns!
That's the good news, the bad news is that after several days of coaxing the carb to let some gas through (yes, after isolating, cleaning or replacing and moving on - the fuel - drained tank and lines -replacing fuel filter - cleaning and checking fuel pump for operation) and finally, lifting the "piston" out of the carbs to determine if any fuel was present on the jet. All tests negative, sooo....
The carbs are off and I am holding two Niehoff rebuild kits for the NS carbs. And before I get started, I thought I would come to the British brain trust located on this forum, and get whatever tips, suggestions, "watch it's", etc. - before finding myself up the proverbial creek without a paddle!
Seriously, any advice would very much be appecial.

In addition, I am convinced the auto choke is hosed and wonder if any of you can point to an available manual one - hopefully telling me what I can remove from the carb area as a result of removing the auto choke (there had to be a better way to figure out how hot the engine was without running radiator fluid up there - wow!!

Mickey Richaud
04-28-2006, 06:36 AM
Hey, Fred - welcome to the Forum! This IS the place!

I'm in the middle of restoring a TR8 with dual ZS's, and have done a lot of "studyin'" on the ZS carbs. They're really pretty simple, and as long as they're kept up, aren't too much trouble. Here's the best info I've found on the water chokes:


I believe member Tony Barnhill also has some info on his website, www.theautoist.com. (https://www.theautoist.com.)

Keep us informed on your progress.

/ubbthreads/images/graemlins/cheers.gif Mickey

05-05-2006, 02:25 AM
No worries. The carbs were a breeze to rebuild (didn't have a kit for the choke, but oh well). Everything is now very clean and best of all the car is running.

Thanks for your thoughts - Mickey

Best Fred

Mickey Richaud
05-05-2006, 07:38 AM
Gotta love a happy ending!

Have you met your fellow San Diegoan, Bret? He posts over on the MG Forum.


05-05-2006, 11:58 PM
If the TR7 carbs are like the TR6, go to https://home.comcast.net/~v.navarrette/ and hit the carb links to Nelson Reidels writings. I couldn't have done mine without them. Invaluable resource,

05-06-2006, 12:16 AM
Fred if your interested, Mechspech in england is sitting on a bunch of old stock new ZS carbs for the trs. I think there going for around $100.00 ea.