Carb Spacer
Thread Starter
|
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Rebuilding a Holley 2300, and wondering if this spacer is installed correctly, should it be facing the other way, does it matter, etc.
Also, found a couple of the rubber vacuum plugs have split and causing vacuum leaks. The auto parts folks didn't seem to have much idea what I was talking about on the phone. Are these a common hang tag part, like in a kit or something?
Also, found a couple of the rubber vacuum plugs have split and causing vacuum leaks. The auto parts folks didn't seem to have much idea what I was talking about on the phone. Are these a common hang tag part, like in a kit or something?
Thread Starter
|
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Yeah, they were open and needed some other stuff, so I bought a little kit. Junk, but whaddaya do?
They will work for a little while anyway. Thought the idle was a little high, glad I checked. So what about the spacer, though? Do I even need a spacer, is that a percolation deal?
They will work for a little while anyway. Thought the idle was a little high, glad I checked. So what about the spacer, though? Do I even need a spacer, is that a percolation deal?
Fleet Mechanic
Joined: Oct 2007
Posts: 1,972
Likes: 104
Keep the spacer. I don't think it matters which way it is installed.
I have 2 of those. One of them has a big vacuum port the other doesn't. The only thing that needs a vacuum line that big is the brake booster, so on that spacer the gap and port would be toward the rear of the engine.
I have 2 of those. One of them has a big vacuum port the other doesn't. The only thing that needs a vacuum line that big is the brake booster, so on that spacer the gap and port would be toward the rear of the engine.
Thread Starter
|
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Yeah, no booster except my leg on this truck. That was the carb port that had the split plug.
Haven't messed with a carb in a long time. Replace power valve and make sure everything is clean and good to go, good gaskets, float OK, etc. The base gasket always seem to cover up, partially anyway, some important looking innards at the bottom of the carb. Why is that?
Haven't messed with a carb in a long time. Replace power valve and make sure everything is clean and good to go, good gaskets, float OK, etc. The base gasket always seem to cover up, partially anyway, some important looking innards at the bottom of the carb. Why is that?
Thread Starter
|
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
So here's a photo of some of the gaskets on a Summit 2300 rebuild kit. There is a gasket with the half cutaway, like the spacer I have. What purpose does this serve? More even flow to cylinders?
So anyway have been running the wrong gasket, apparently. The spacer probably only fits one way now that I look at it. Can just cut gasket down to match, or buy one for a buck or two.
So anyway have been running the wrong gasket, apparently. The spacer probably only fits one way now that I look at it. Can just cut gasket down to match, or buy one for a buck or two.
FTE Legend
Joined: Jun 2004
Posts: 31,920
Likes: 2,392
From: Upstate NY
What I recall about carb spacer openings is not enough to fill a mosquito's bladder! But, when I was putting one on my 66, I read things like different hole configurations for different torque levels. If you are not racing or pulling but just driving around I don't think you would even detect a difference which ever way you installed it. The biggest benefit you will get is reducing percolation.
Thread
Thread Starter
Forum
Replies
Last Post
Keymaster
1973 - 1979 F-100 & Larger F-Series Trucks
14
Jan 1, 2018 10:23 PM
91Fbody
1948 - 1956 F1, F100 & Larger F-Series Trucks
7
Jul 17, 2015 11:51 PM
Sam_Fear
Ford Inline Six, 200, 250, 4.9L / 300
5
Nov 29, 2004 11:33 AM
76highboy
1973 - 1979 F-100 & Larger F-Series Trucks
4
Aug 8, 1999 09:06 AM
