General Category > Quadrajet Carb Talk and Tips

Idle pickup tube collar size difference?

<< < (2/2)

Cliff Ruggles:
I measured everything in my possession and all of them are .160" to .1603".  Nothing at .161".

I also tried to insert several of the .160" into fresh rebuilds here and there is some interference fit so they just don't drop right in.

When we run into loose idle tubes here, which isn't very often I usually just coat them with a little red Loctite and may use a round nose punch next to the hole they go into and very gently reduce the size of the opening so they go in with a little resistance.  Not really a big deal as long as they seal up and pull the fuel thru the orifice in the end of the tube......Cliff

JasonCamaro69:
Thank you.

von:
A few years ago I got one from another supplier that dropped right in with no resistance. I don't remember what it measured but the sleeve was smaller in OD than normal. A replacement fit correctly, so the carb was OK and I'm guessing it's possible for a defective idle tube to slip through occasionally.

Navigation

[0] Message Index

[*] Previous page