Oil drain

[woodbird007 16]

Need help adding oil drain piping to Koehler K241 with 1/2” drain plug

[953 nut 59,216]

A 1/2" street L 90, a nipple long enough to clear the frame and a pipe cap should do the trick.

[gwest_ca-(File Mod) 11,388]

For those not familiar with pipe sizes

 

Pipe sizes can be confusing. The different Schedules define the pressure ratings and only the ID changes for each. OD's stay the same.

 

The Schedule 40 dimensions and the most common.

1/8" pipe has a .405" (10.287mm) OD and .269" (6.833mm) ID

1/4" pipe has a .540" (13.716mm) OD and .364" (9.246mm) ID

3/8" pipe has a .675" (17.145mm) OD and .493" (12.522mm) ID

1/2" pipe has a .840" (21.336mm) OD and .625" (15.875mm) ID (Schedule 80 has a .546" (13.868mm) ID, Schedule 160 has a .466" (11.836mm) ID)

3/4" pipe has a 1.050" (26.67mm) OD and .824" (20.930) ID

1" pipe has a 1.315" (33.426mm) OD and 1.049" (26.645mm) ID

1-1/4" pipe has a 1.660" (42.164mm) OD and a 1.380" (35.052mm) ID

 

After you measure the OD of a pipe it is easy to spot increases or decreases in the sizes by the use of fittings because the size difference is substantial.

Don't confuse pipe and tubing sizes - they are different.

[Jeff-C175 7,206]

Don't most all small engines use 3/8" pipe thread?

 

I can't recall owning one that used 1/2" pipe, but i believe the wrench size on the square head 3/8" pipe plug is 1/2".

Edited September 13, 2021 by Jeff-C175

[squonk 43,335]

Every Horse I have is 3/8"

[peter lena 9,186]

@squonk , simple . 3/8 " ball valve , with matching  3/8 plug , make up a screw in hose for plug removal , pete

[squonk 43,335]

 

 

 

 

https://www.ezoilchangevalve.com/store/c1/Featured_Products.html?_vsrefdom=adwords&gclid=CjwKCAjw7fuJBhBdEiwA2lLMYV8VXY_YEOzzm6SdTyoDkl74gaquL4-_yTm5MnZCfy_dgD9Jhw5fgRoCChwQAvD_BwE

[pfrederi 18,556]

Lets see 23.95 plus 6% sales tax  25.39   times 20 horses...$507.00....

[WHX?? 51,347]

This my friends is 1/2 on a 161

 

Ohhhh you wanted stainless.... $XX times 30 horses = yah not gonna happen. I could see Squonkys valve for a special horse tho. Say a good worker or plow mule that requires frequent changes. 

 

 

Seriously pretty sure a 241 is 3/8 NPT &  got a little fancy with this one. My life's goal is change oil someday with out making a mess or spilling one single drop. Prolly never gonna happen..... 

Might be 1/2 on the magnums or later Ks ?? Wasn't the low oil sensing thingamabob bung on some tapped for 1/2? 

Edited September 13, 2021 by WHX??

[WHX?? 51,347]

Nail down the size Woodbird and plan your routing. Then go and go visit Ace is the friendly place and pick up some black fittings & nipples. Don't be afraid to get multiple length  nipples they are not real pricey. 

!/4 NPT on a Clinton powered 'Burb. 

Edited September 13, 2021 by WHX??

[squonk 43,335]

I put the EZ on the C-160. It does the mowing and with the hose extension I don't have to take the heavy Recycler Deck off

[lynnmor 7,703]

These should take less room and costs about ten bucks.