Need size of air cleaner screws, help?
 

I lost the 4 screws that install the air cleaner assembly to the carburetor on my IH Cub Cadet 70 Kohler K161 7hp. If anyone knows the exact size I would like to know it. I’ll need to buy new ones from Ace Hardware or it would be cool if I could find the real Cub Cadet Kohler ones on eBay or something… Any help is appreciated.

https://www.onlycubcadets.net/forum/...pictureid=8297

Your picture is too dark for clarification.

The two Air Cleaner screws are: Screw, 8-32 X 3/8 Rd Hd Mach w/Lock Washers.

Ok, thanks, so these will work? Obviously I wouldn’t buy 100, I would try to get individuals from Ace or Menards.

https://www.amazon.com/Hillman-83067...DbGljaz10cnVl#

https://www.amazon.com/gp/product/B0...7J7TSIPG&psc=1

Here are 2 better pics, sorry about that.

https://www.onlycubcadets.net/forum/...pictureid=8300

https://www.onlycubcadets.net/forum/...pictureid=8299

When you go to Ace Hardware to get the two little screws and lock washers like Roland said, get two extra. Put them in a container of your choice, labeled in with your Cub stuff. Don't ask how I know this.

You don't need any screws for the side holes.

Ironman, you must have a slightly different air cleaner holder than me. Here’s a pic of mine. It mounts using a bracket you don’t have and 2 screws.

https://www.onlycubcadets.net/forum/...pictureid=8302

By the way, the paint job on that engine looks awesome!

There is a way to tell 100% for sure. What is the Kohler "spec" number on that engine?? It will start with the number 28xxx.

The picture of the Air Cleaner base does NOT appear to be Cub Cadet.

The spec number is 28999E

These pictures are of the screw that goes into the throat of the carb. As you can see, they are 10NF32 thread by 3/8"long. There are three of them. You do not want the two positioned at 3 and 9 o'clock to be too long or they will jam the choke shaft.

Of the three carbs that I currently have access to, none of them have threads in the side holes so I cant help you there. Take the carb to a hardware store and ask a clerk to fit it up.

Screw,washer hd tap #8-32x3/8 That is what supposedly holds that on.

I would get Allen head socket cap screws instead of those slotted screws they used from the factory.

Success
 

I cut some screws that I had that were the right thread and width with my screw cutter. They worked.
Why would you recommend allen head socket cap screws RustyShackleford?
Thanks for the help everyone!

They’re just easier to install since you can pop them onto the end of the Allen key instead of weeble wobbling the slotted screw into position. When I rebuilt my K241 I replaced all of the slotted screws with socket cap screws (points & points cover, etc.). Just makes life a little bit easier.

Oh, ok. Thanks for letting me know.

It is explained in a different thread I posted a couple hours ago, but I am also missing my engine shroud/gas tank screws… Thanks for the help everyone with this!

On my Onan and Koehlers I’ve used button headed screws, plus blue loctite . I like the way they stick in the Allen wrench . Less chance of dropping them into the carb.

What I do is get the correct size screw with a nut for it, run the nut up to head of screw, put a dab of JB Weld on screw and thread it into the carb, once it sets up run nut down screw to carb and cut off the head of screw with my Dremel Tool and clean up the threads with the nut. Use Nyloc nuts and never had an issue with anything vibrating loose.