Search found 3 matches
- Mon Mar 23, 2026 9:34 pm
- Forum: General Discussion Forum
- Topic: 1911 Holley 4500 carburetor
- Replies: 5
- Views: 234
Re: 1911 Holley 4500 carburetor
Thanks. I played some more today to no avail. I pulled a Kingston 5 ball off Brush and after richening the mixture a few turns it fired right up. I pulled the NH off of my 27 T and it also fires up after a couple of pulls. Thanks for the advice on the spring. I was pretty sure there wasn't supposed ...
- Sun Mar 22, 2026 7:42 pm
- Forum: General Discussion Forum
- Topic: 1911 Holley 4500 carburetor
- Replies: 5
- Views: 234
Re: 1911 Holley 4500 carburetor
I thought that as well, however, I've adjusted the float height so its just on the verge of flooding with no change. I had my neighbor put his hand on the carb inlet while I gave it a couple of pulls and he said that there was virtually no vacuum produced. Tried it again with the carb off and said t...
- Sun Mar 22, 2026 6:24 pm
- Forum: General Discussion Forum
- Topic: 1911 Holley 4500 carburetor
- Replies: 5
- Views: 234
1911 Holley 4500 carburetor
I'm the proud new owner of a 1911 T touring that's equipped with the correct holley carb. I'm having difficulty getting it to start when cold. I've owned a few T's with later carbs that haven't had this issue. My question is this - cast into the venturi is an weighted air valve that I assume opens a...