Cliff's Quadrajet Parts and Rebuild Kits

Quadrajet Problem Solving => Quadrajet Parts and Numbers => Topic started by: Shark Racer on June 05, 2013, 06:03:47 PM

Title: Evap port for M4M
Post by: Shark Racer on June 05, 2013, 06:03:47 PM

Just got an M4M for a friend but it's missing the evap port. Looks like the tube is 3/8" but the hole in the main body is only .335. Does this make sense?

Anyone know how/where I can source something like this?

Title: Re: Evap port for M4M
Post by: 429bbf on June 06, 2013, 09:02:59 PM

my son just bought me 10 more carbs let me check this weekend if one of them has something to help you.

Title: Re: Evap port for M4M
Post by: Shark Racer on June 07, 2013, 01:50:42 PM

Thanks. Much appreciated. It's the one just under the front airhorn screw, points down and to the driver's side.

Title: Re: Evap port for M4M
Post by: 429bbf on June 08, 2013, 08:48:38 PM

i dug threw at least 40 carbs 20 of them had the piece your looking for . BUT they all measure about .371 to .373 if it was mine id drill it .if you dont have one .371 or so ill give you one . buy the way whats the carb no.?

Title: Re: Evap port for M4M
Post by: Shark Racer on June 09, 2013, 12:00:49 AM

I'll double check my measurements but can't believe I was off .040 with a mic.

It's a 17080270 - for a 80 Firebird 301 W72 (non-turbo)

Title: Re: Evap port for M4M
Post by: Shark Racer on June 09, 2013, 12:46:40 AM

Well I was off -  got 367. must have had the mic xxxxed or something.

Title: Re: Evap port for M4M
Post by: 429bbf on June 09, 2013, 06:04:52 AM

ha ha before i got glasses all my tools read wrong.do you need the piece?i have one out of a late model electronic carb.