Type 3 Cool Tin. Good or Bad Idea? Please Discuss

[Fasterbrit]

Ok, for years I have heard good and bad about Type 3 cylinder under tin sometimes referred to as 'cool tin'. Some people swear by it and some people swear at it saying it overheated their motor. Now, why would VW develop a special cylinder under tinware for the Type 3 if it did not work? Why would Brazilian Type 2s run it if it didn't work? VW must have done their homework, so what are your experiences with Type 3 cooling tin? Any pros and cons would be greatly appreciated. Run it or not - that's the real question!

[Fastbrit]

All I recall is Dave Kawell telling me that when he worked as a (trained) mechanic in a VW dealership, he read a tech update from Volkswagen saying that the new under-cylinder tin was not to be used on Type 1 moors. It was solely for use on the pancake Type 3.

[Sam K]

I don't if it's true, but I was told a long time ago that the type 3 cool tin was designed to work with the type 3 fan shroud on the front (back?) of the engine to help duct air all the way back to #'s 1 and 3 cylinders. It's not neccessary with type 1 shrouds as the fan is on top of the engine and is easier for it to distribute air to all 4 cylinders equally.

[Zach Gomulka]

The type 3 cylinder deflector tins were designed for the type 3 pancake engine, and it was only used from the factory in '74 (maybe '73 too). If you choose not to use the "sled" tins that mounts near the 1 & 3 cylinders, and the opposing tins that mount near 2 & 4, then the type 3 tin is better than using the type 1 cylinder deflector tin by itself. My advise is to use ALL the correct German tins designed for the type one engine. It works.

[Fasterbrit]

Will you be pulling them off your motor Keith or leaving them in place when you drop the C.R. ?

[Bill Schwimmer]

I have had cool tin on my motor for the past 15yrs...I don't know if it runs cooler or hotter, but it has'nt been enough of a detriment to take it apart since March of 93.  Just to upset the apple cart.

[Gary Justus]

Yup...My low c/r 2332 runs way cool. Maybe not because if the tins, but they're there.

[Bruce]

I have had cool tin on my motor for the past 15yrs...I don't know if it runs cooler or hotter, but it has'nt been enough of a detriment to take it apart since March of 93.  Just to upset the apple cart.

Ditto.

[Fastbrit]

Will you be pulling them off your motor Keith or leaving them in place when you drop the C.R. ?

Leaving them - too lazy...