04/09/2026
It’s been a busy few weeks!
One of the cars I’ve had in recently has been this MG. It came to me not running, and the brakes weren’t particularly happy either!
The main issue with the engine was the twin SU carbs. One had the choke permanently around 50% open, while the other wasn’t connected to the linkage at all. The linkage needed fully resetting, one of the jets had an issue and needed taking apart, the dashpot springs were incorrect, and the oil in the dashpots was too thick. The list goes on — lots of little things that needed adjusting or changing on these carbs!
They’re now balanced and the mixtures have been adjusted. Along with this, I re-gapped the spark plugs and adjusted the tappets.
While investigating the lack of brakes and solid brake pedal, I found that the master cylinder wasn’t working correctly. It wouldn’t allow fluid through to the rear brakes and was holding pressure in the front circuit.
A new master cylinder was fitted (what a fiddly job!), the system was bled and the rear brakes adjusted.
While changing the master cylinder, I also replaced the brake light switch, as the old one was permanently on and leaving the brake lights illuminated all the time.
I also found that the brake pedal was binding on its bush and pivot pin. I stripped it all apart, thoroughly cleaned everything up, and it’s now operating smoothly again.
The MG is now ready to be returned to its owner and, most importantly, enjoyed! 🙂🔧