[Farmall] Oil for Cub Engine

[Mike Sloane]

This all sounds familiar, as I am working on "restoring" a '52 Cub that 
was given to me. (see 
<http://public.fotki.com/mikesloane/1952-farmall-cub/> for more.)

A loose suction line could very well be the source of your problem (and 
it is a bugger to tighten that gland nut!).

If you have that much slop in your rod bearings, I suggest that doing a 
tear-down is not really an option - running the tractor will only make 
things worse. If you absolutely have to keep running it, I suggest a 
pint of STP or "motor honey" with some 15W40 engine oil. It won't make 
things any worse, and it might prevent further damage. But you will have 
to get rid of it come really cold weather.

That is my opinion, and you did ask for it. :-)

Mike

Roger Moffat wrote:
> I've got a 1949 (Serial 82115) Cub that has problems with oil pressure  
> when starting it up if it hasn't run in a while.
> 
> I know I'm not alone in this, and am aware of the priming hole hidden  
> away behind the hydraulic lines where it's hard to get at.
> 
> So this afternoon I've taken the sump off and cleaned it out - not  
> tooooo bad for a 60 year old tractor I guess - and checked the suction  
> pipe - it wasn't absolutely tight - I could move it by hand from side  
> to side with only moderate force, but it certainly wasn't loose.
> 
> The bearings are loose - big ends can be moved up and down probably . 
> 010 on the worst one - I don't have a dial gauge to measure with. But  
> I'm not inclined to be trying to fix this right now - that's a whole  
> 'nother project I think, and the tractor gets only light occasional use.
> 
> So new gasket purchased from NAPA just now I'm ready to put it back  
> together.
> 
> What oil should I use in the engine? The book says SAE 30 above 80°F  
> SAE 20 for temps 32°F - 80 °F, and SAE 10 below 32°F.
> 
> Since I'm in Michigan should I use 10W-30 perhaps?
> 
> Thanks
> 
> Roger=