Engine keeps running on, or dieseling - Seafoam fix?

Farmall M, Super M, 400, 450 & 560 Tractors, 1939-1963

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
User avatar
ShawnAgne
Cub Star!!
Cub Star!!
Posts: 401
Joined: Sat May 07, 2016 5:13 pm
Zip Code: 45380
Tractors Owned: 1952 Cub w/ 184 motor (Kid)
12V with Petronix
IH 3160 Mower Deck
54 Leveling Blade
193 Plow
IH528 Trailer
Farmall 300 (Clarence)
12V with Petronix
Woods L306 72"
Circle of Safety: Y
Location: Versailles, Ohio

Re: Engine keeps running on, or dieseling - Seafoam fix?

Postby ShawnAgne » Tue Oct 17, 2017 10:10 am

I made a siphon out of a ball inflation needle and hose that I attach through the small screw of the manifold. Have used it on the original Cub motor and the 300 and it does blow out a lot of black stuff. I think I may do it again on the 300 as I pulled the 386 plugs after doing the conversion to 12V and they were heavily coated in black crud.
Shawn Agne

ajhbike
501 Club
501 Club
Posts: 530
Joined: Thu Mar 09, 2017 4:06 pm
Zip Code: 06405
Tractors Owned: 1957 Cub- Lorelai
1956 Lo-Boy FH- Rory
1951 Super C FH- Emily
Woods 59 CLF
54A Blade
54-L Blade
72" Rear Blade
Carryalls
Pallet Forks
Location: Branford, CT

Re: Engine keeps running on, or dieseling - Seafoam fix?

Postby ajhbike » Sun Dec 10, 2017 7:47 pm

I had trouble with rough running on my cub. I put a tablespoon in each spark plug hole, cleaned and gapped the plugs and reinstalled them. Then I colored the dosage and put some inn the oil. I probably ran it 5 hours total in the next 2 weeks and changed the oil. It helped smooth things out allot.
I also put it in the gas every so often of all 3 tractors, chain saws, lawn mower, snow blowers and after the smoke clears, things seem to run better


  • Similar Topics
    Replies
    Views
    Last post

Return to “Farmall M, Super M, 400, 450, & 560”

Who is online

Users browsing this forum: No registered users and 0 guests