Which is the correct air filter canister for a 63B t6

[Gus Guzman]

I powder coated the short ones but then realized they dont fit? Are these for another year?

IMG_5563.PNG (402.91 KiB) Viewed 963 times

[David Jones]

The T6 came with both. Sometimes the left one had a plug where the breather hose would have connected on the right side air filter can. At least that is my belief.

[Gus Guzman]

Just a note I have 2 sets, 2 short necks and 2 long necks? just want to make sure I restored the right ones:)

[David Jones]

The short necks were used with the flip top oil fillers.

[Vic Skirmants]

The tall ones were used starting with the C. They also used up the short ones on the left side for a while. Then they used tall on both sides, with a plug in the left one as Dave mentioned.

[Brad Ripley]

David and Vic, I'm interested to know more about the plug in the left (standing behind engine) 356C air cleaner. Type of plug? Diameter? Photo?

Note: interesting is that the part number of the 356C air cleaner was unchanged from the 356B version (for some reason). But noted in catalog page is an O-ring (999-701-093.50); what was the function of that O-ring? Maybe it was a mistake and a plug should have been listed. I don't doubt that there was a plug; I remember having in stock new air cleaners had some sort of a plug, maybe yellow.

[Vic Skirmants]

David and Vic, I'm interested to know more about the plug in the left (standing behind engine) 356C air cleaner. Type of plug? Diameter? Photo?

Note: interesting is that the part number of the 356C air cleaner was unchanged from the 356B version (for some reason). But noted in catalog page is an O-ring (999-701-093.50); what was the function of that O-ring? Maybe it was a mistake and a plug should have been listed. I don't doubt that there was a plug; I remember having in stock new air cleaners had some sort of a plug, maybe yellow.

The O-ring went inside the neck of the air cleaner. It helped to seal it better. I wasn't aware of it for years. We need someone with an ORIGINAL C to check their short air cleaner for an O-ring. I'm guessing they didn't use one in the short version, because they weren't designed for it. The O-ring was probably needed for the emissions function of the air cleaner; and to make sure all the blow-by junk was forced into the carburetor.