Cub runs rough when Cold

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

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.

Cub runs rough when Cold

Postby Holes49 » Tue Jun 01, 2004 8:36 am

How Come.......
Wondering why my 49 runs rough under load when cold, but once it warms up it runs great. Granted with all the rain the grass was heavy, but once she warmed up it was ticketty-boo.

Nother ????
I've heard if the hydraulis leak, it leaks into the engine, so the hydraulics should be using 30 wieght oil, same as the engine??

John
Yeah...but think how fast I'll be able to do it the 2nd time !!
User avatar
Holes49
10+ Years
10+ Years
 
Posts: 17
Joined: Fri Aug 01, 2003 8:52 am
Location: Kilsyth, Ontario

Postby Bigdog » Tue Jun 01, 2004 8:44 am

Sometimes rough running can come from gaps or leaks on the intake manifold. Those seem to "cure" themselves when everything warms up and swells a little sealing the leaks. Perhaps even valve clearances change or even a little sticking of the valves could occur as the engine warms.

Early cub hydraulic systems used 10 wt. non-detergent oil. 30 wt. would be too heavy especially in cooler weather. Later recommendation was to use hy-tran fluid.
If you see the problem occuring, overhaul the pump to correct the situation. Change the engine oil and you shouldn't have to worry.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.

My wife says I don't listen to her. - - - - - - - - Or something like that!

http://www.cubtug.com
User avatar
Bigdog
Team Cub
Team Cub
 
Posts: 23820
Joined: Sun Feb 02, 2003 12:50 pm
Location: OH, Stoutsville
Zip Code: 43154
Circle of Safety Award
Circle of Safety: Y


Return to Farmall Cub

Who is online

Users browsing this forum: Scrivet, wrz and 10 guests