Trying to source a 3.2 replacement vacuum line rubber reducer
 

I had to remove the rubber reducer on my vacuum line on my 3.2. It was split, so I cut off the steel crimp and thought it wouldn’t be a big deal finding a suitable replacement, but everything I have looked at this far is not a good fit. The straight rubber reducer on the oil tank (pictured below next to the taller reducer I need to replace) is a fairly close match, but the larger ID is way off, and I think it would be too short anyway. Bummer Porsche only sells the reducer when you buy the whole line with it!

I can surely Frankenstein something to work, but was hoping that somebody may have already done this and found a suitable straight rubber/silicone reducer to use. Seeing as it’s for vacuum, the wall thickness needs to be relatively stout to keep it from collapsing. I could also braze a short extension with a larger OD so that I could use the oil tank reducer I bought.

Any ideas appreciated!

http://forums.pelicanparts.com/uploa...1758930737.jpg
http://forums.pelicanparts.com/uploa...1758930737.jpg
http://forums.pelicanparts.com/uploa...1758930737.jpg
http://forums.pelicanparts.com/uploa...1758930737.jpg
http://forums.pelicanparts.com/uploa...1758930737.jpg

I've had problems like that on turbo installs and we cured it with an adapter sleeve made on the lathe from aluminum bar stock.

Yeah, I may have to go that route. I was hoping to find an off the shelf item. After 1.5 hours perusing vacuum fittings online, I realized that I could have fabricated it and been done already!

Slip one fuel line piece inside a larger and add some avation permatex for a seal and clamp the ends.

This might be called a 'bodge' fix....

Completely degrease the fitting inside and out.
Use super glue to bond the cracked part almost instantly.
Build up the outside with layers of a tough sealant when dry.. I have been using Soudal T-Rex. Let it cure completely and it shold seal well. Just not sure for how long.

An old spark plug boot works great.

Put some heat shrink over it and heat it until the heat shrink seals the crack.... double up the heat shrink if you want as well.

Done it a few times....