[Farmall] Oil for Cub Engine

[Mike Sloane]

I used a Plasigage on my journals and got about .003". According to the 
IH manual, that is within acceptable range, and my bearing shells looked 
brand new, as did the journals. So I buttoned everything back up (after 
replacing the (Made in Michigan USA) rings. To make a long story short, 
I finally got the engine running today, and there is neither rod knock 
nor smoke, and the needle on the oil pressure meter reads about half way 
- about average for a '52 Cub and well within my expectations. I still 
have some electrical problems, but I am pretty happy with the engine part.

By the way, I tightened up my oil suction tube after the strainer was 
on, which made it twice as difficult, but I was afraid to do it the way 
you did for the same reason you stated.

Mike

Roger Moffat wrote:
> On Jul 20, 2009, at 6:03 PM, Mike Sloane wrote:
> 
>> A loose suction line could very well be the source of your problem  
>> (and
>> it is a bugger to tighten that gland nut!).
> 
> Aye - that it is. I found that I could slide a ring spanner (box  
> spanner in American?) up over the pipe to the nut and then tighten it  
> pretty well with that 1/12 of a turn at a time, and hope that the  
> other end of the pipe remained in the right place for the strainer to  
> fit over - took only 2 attempts but I got it pretty tight on the  
> second attempt and lined up for the strainer.
> 
>> 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.
>>
> 
> Well I don't "have" to use it, but probably will occasionally. Right  
> now is not a good time to be thinking of spending much money on this  
> very little used tractor though (my wife is the breadwinner and she  
> works in the teetering auto industry for GM), so I've already got it  
> back together, just awaiting what oil to use.
> 
> I measured 1 big end journal with a dial caliper (don't have a  
> micrometer alas) and it was 1.495 - as near as I could tell on two  
> different axis vertical and horizontal, so is .003-.004 undersize.  
> Maybe the slop isn't .010 - it's feelable by hand but I don't have a  
> way to measure it - should have bought some Plastigage at NAPA I  
> suppose.
> 
>> That is my opinion, and you did ask for it. :-)
> 
> Thanks :-)
> 
> Roger
> 
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