Replace faulty vacuum advance or complete distributor?

[carl350i]

Good morning.

Now that I’ve been using the griffith a lot more recently after an 8 year layup.

I’ve noticed a bit of hesitation under light throttle, and I don’t remember having it before.

I’ve looks at loads of past threads and thought out of interest to check the timing, it hasn’t been touched in 15 years.

But before I went to check it, I checked the vacuum advance to see if it would hold pressure and move the the base plate, it did not, probably due old age and not being used.

So question is, just replace the vacuum advance and see it helps or replace the whole distributor?

Cheers,

Carl.

[carl350i]

Ordered a vac advance, should turn up tomorrow, I’ll let you know if it’s worked

[carl350i]

FIXED

New vac advance did the job nicely.

Easy to fit, The inside of the distributor was lovely and clean and it all moved freely.

£20 well spent.

For anyone searching for hesitation at light throttle, check yr vac advance.

Cheers.