870express 116 #1 Posted July 6, 2019 Why is there a hole in the side of this updraft tube? Wouldn't it defeat the purpose of the air filter? Share this post Link to post Share on other sites
diesel cowboy 263 #2 Posted July 6, 2019 Not 100% sure on the old Clinton engines but all the other engines I've worked on that had a hole like that between the air filter and carb. went to the breather box on the valves. Check the little rectangular plate behind the bowl on the carb. and you might find a matching hole or a fitting of some kind. Then again it is also somewhere around 50-60 years old and it's possible somebody put it there in the past for some reason. I'm sure someone who knows a lot more about those engines will be along soon to help out. 1 Share this post Link to post Share on other sites
richmondred01 2,307 #3 Posted July 6, 2019 It’s a Clinton engine. Put a cigar in it. If you get caught deny deny deny....... 1 2 Share this post Link to post Share on other sites
870express 116 #4 Posted July 7, 2019 On 7/5/2019 at 9:06 PM, diesel cowboy said: Check the little rectangular plate behind the bowl on the carb. and you might find a matching hole or a fitting of some kind. You were right. Now I just need to find a replacement tube to connect the two. 1 Share this post Link to post Share on other sites
