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How to install Unipod vent filter and stack filters?


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So I just got my first car with carbs and have to replace the filters on my Weber side 45 dcoe side drafts and am unsure about installing the vent filters...

First off what kind of filter oil should I be using? And is driving with oiled filters a bad thing?

1) What is the float cover? And what area should I clean?

2) Once the float cover is off will the filter chamber be obviously seen?

For the air filters:

1) How do you remove the velocity stacks or do you not need too?

2) You place the collar or clamp on the stack and slide it to the tampered end until it stops or until it starts to taper? And then once it is in position you put the filter over it and clamp it down?


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Just did this on mine.

To install the vent filter remove the round cap with the wing nut and set aside, careful not to lose the gasket. Remove the flat head screws holding the top of the carb to the body of the carb. carefully lift the top off. The floats are attached to top, pull straight up, gently, so the floats don't get tweaked. You should be able to see where the vent filter goes at this point, on the left. The filter has one corner trimmed off for fitment. You may have to remove the fuel lines which attach to the top as well.

You should not need to remove the arihorns to install the unifilter. The rubber ring is beveled to fit snugly on the air horn. Mine slipped/stretched over the airhorn without any problem. Then just slip the filter on and tighten the clamp.

As for oil I used regular motor oil. I put the filter in a ziplock bag, poured the oil inside the filter and massaged in. Then I placed the filter on a some rags for an hour or so to drain off excess oil.

The large print giveth and the small print taketh away.

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