Dual carb air cleaners

[Guest Gerhard Tieseler]

I got it done!

I took the screws out of the exhaust tips, (the ones you would try in vain to tighten onto your exhaust pipe, and have the tip fall off later anyway) then replaced them with screws long enough to go all the way across the hole. Now I have an X in the bottom of the air cleaner. I then cut up some old air filters and took the screens out of them, cut them round for the holes and slid them down onto the X. I then went to the parts counter at work and got a chunk of Scotch brite, carved it into a 2 and something odd inch circle, stuffed it down inside the hole and sprayed some K&N filter oil on it.

I put them back on and fired it up. It looks pretty good! No more dirt (or at least not as much as no filter), it doesn't run like it's getting choked, and I can still hear the intake when I stand on it! That was probably my two biggest concerns: Looks and noise!

Now the carburetors....

I have a five gallon bucket full of Chem-Dip. I cleaned up my carbs before with it. They looked great until they started seeping again. Everything is so warped, I'll bet my Dodge would be a whole new beast if I could straighten all that stuff out! I'll practice some patience until I get a chance to dial this baby in!

[Normspeed]

Gerhard, I spent most of today messing with my fresh rebuild. Long story, but in the end it's running much better and no more evidence of internal fuel leaks after shutdown. Let me offer a couple photos I just took today, and if you want to learn more from my errors just ask. The photos show how you can fix the upper gasket leaks due to warped mating surface on the top section. #1 shows high spots after a few passes over 120 grit on a smooth flat backboard. The shiny spots are high spots that keep the rest of the surface from pinching the gasket. #2 shows how the entire surface is leveled (all shiny) after some continued sanding on the 120 grit. You put the paper on the backing and work the carb piece over the abrasive holding the part like a sanding block if that makes sense..

That area in the lower right in pic #2 is the most likely to leak. There are a few other tricks but I'm getting self conscious about the guru title. It ought to be motormouth.

PM me if ya have questions.

[Niel Hoback]

Great minds think alike. To acheive the same end, I stuck an adhesive sanding disk, fine grit, on a steel plate and worked the carb parts back and forth on it. The same thing you did, only, like everything else, I did it backwards. Story of my life.

[martybose]

Niel,

I'd argue that you did it the right way! My mechanic, an oldtime funny car racer, kept a 1" thick piece of perfectly flat glass that was about 8" by 8" that he would tape a really fine grit aluminum oxide sandpaper to, add a little oil, then use that to flatten carburetor gasket surfaces. It was sometimes amazing how long it took to get some Holley 4 bbl bases truly flat to ensure sealing!

Marty

[Niel Hoback]

I heard once of a guy that took a head in to have it milled and they asked him how it got all scratched up like it was. He said he tried milling it on his own by rubbing it across a flat tombstone several times. Like eating White Castle hamburgers, "It seemed like a good idea at the time".

[Arthur1947]

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Gerhard,

I built some custom air cleaners for 47. They work well. Not to sound like a salesman but anyone who wants some built feel free to contact me.

Best.

ARTHUR

[D25_Steve]

Those look great Arthur, gives it some chrome, and certainly lets them breathe.

[jd52cranbrook]

The only way to fly,,,, lol

Pleanty of breathing here, and nice chrome look too.

[D25_Steve]

How do you attach those K&Ns to the carb? I would think the diameter would be way too wide.

[jd52cranbrook]

If you look closer at the base of the filters you can see the plates, I originally purchased air cleaners that came with the carbs from Langdons Stovebolt Six. They are plates cut to fit the base of the carter/weber carbs. I re used those. I still need to trim a bit of excess off but they work great. You can really make your own from sheet metal.

[Don Coatney]

[quote=Don Coatney;Speedway Motors web page and did some searching. I found washable filters part number 91011014 (these should last a lifetime) that will fit into my existing setup at less than half the cost of the K&N filters. I should have them by late next week...

The new (Speedway Motors) air filters arrived this week. They are the same size as the ones I was using so this will be a bolt on install with no modifications required. Coat for 4 of them delivered was $41.51. These are washable filters and less than half the cost of the K&N equivalent. They are very flexible but return to there original shape when released. I will install them soon..

[Normspeed]

BTTT. This thread is too good to lose. Worth it just for the photos, and full of great air filter info. Maybe this one should go in the tech area.

Don, how did your Speedway foam filters work out? Are you back to using one per carb? Will you be using them in the BIG RACE?

[Don Coatney]

BTTT. This thread is too good to lose. Worth it just for the photos, and full of great air filter info. Maybe this one should go in the tech area.

Don, how did your Speedway foam filters work out? Are you back to using one per carb? Will you be using them in the BIG RACE?

Norm;

The new Speedway filters are still sitting in the box on my workbench. There is still a lot of life in my existing filters and my thought is I may up-grade my carburetors before I need to replace my current filters. If so I will sell the new Speedway washable filters.