I own a 1980 Alfa Romeo Spider that was having idle problems, so I opened the hood on Sunday.
Here's what I found.
1. The rubber hoses are going bad.
2. I sprayed carb cleaner around the vacuum lines and found the leaks.
3. When I disassembled the parts to get to the vacuum lines, I ran into trouble - many of the hoses/connectors have gone bad also.
4. I called my local auto parts shop and the hoses are not available.
5. I went on line and the hoses are not available.
I would like some advice from someone who has had a problem like this - rubber parts going bad and no replacement parts available.
Here's a picture of the engine compartment (not my car, but one I found on the internet). Same components.
The three parts I need are circled in green and numbered.
The part to the left of 1 is the intake manifold. The part between 1 and 2 is the throttle body. The part between 2 and 3 is a steel intake. The part below 3 houses the air filter.
Part #1 is a piece of rubber with two clamps - I'm thinking about using this plumbing coupler 
Part #2 is a rubber seal - different from the one above. It has a groove where the throttle body mounts to and the end that connects to the steel intake is just rubber hose. Not sure where to get something like it.
Part #3 is a thick reinforced rubber hose (like one of those universal radiator hoses). The picture below shows it connected with two radiator hose clamps. Mine is connected with a small screw and washer. The hose is oval. If I can't get one, I'm thinking of using the old part and using silicone wrap to seal both ends.


Your ideas are greatly appreciated.
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