pushing jets into carbs

[ethel]

The fixed jets in the stromberg carbs are a very tight fit, I've got the old jet out, but am wondering which is the best way to push the new one in, from underneath or from inside the carb? It seems more difficult to get a straight on push from underneath as the jet tends to wobble out of alignment, but the alternative means pushing down on the top of the jet with the possibility of damaging it. What did you do and why?
Is there any benefit to putting the jet in the freezer for a couple of hours before I start?

Thanks, John.

[Phil S]

put the jet in the freezer and the body in the oven to heat it up

[ethel]

I know it's annoying when you're searching for something on the forum and find someone's asked a question, but there's no conclusion, so just in case anyone finds this (short) thread in the future, here's how I eventually fitted the jet.
It went in from the bottom of the carb body as inserting from the top would mean pushing the jet further through the body and as it's such a tight fit I wanted to minimise the effort and risk of damage. I used a large-ish C clamp to start the jet into the body and kept it all straight and in line by using a socket that would fit around the lower portion of the jet and inside the recess that the jet sits in, the outside of the socket was built up with tape to make a push fit in the carb so this kept the jet in position and meant I had a hand free to operate the clamp - there were bits of wood between the clamp and carb/jet. Having got the jet pushed firmly enough into the carb I turned it upside down and with a couple of sockets that would rest on the lower shoulder of the jet (to avoid damage to the fuel pickup) The jet was hammered into place, I found that the fit was so tight there was little chance of drifting the jet in too far, each 'tap' with the hammer only moved the jet a fraction of a mm. I didn't bother cooling/heating anything as I though that by the time I got it all set up everything would be back to ambient temp.

John.

[StagJonno]

Good to hear that you succeeded, John. Some good tips here.