[Farmall] Difficult F14

[John Hall]

Marvel Mystery oil usually works fine. The dealer dad worked for gave that 
advice out often--especially for Cub Cadets.  Adding 2cycle oil would 
probalby do the same thing.


Here is my concern. An engine with a lot of hours that has sticking valves 
is one thing. An engine that has just been rebuilt  is another. You may need 
to pull the head and have the guides honed out some. Personally I would try 
the M&M oil and run lots of $3 a gallon gas thru it first. You might spend 
$15 but if the problem clears up it'll be cheaper than sending the head to 
the machine shop.

One other thing. If the stem to guide clearnce is a little tight and your 
valve springs are weak, that could contribute to the problem. If the head 
has to come off, have the machine shop check the spring, you may need to 
replace some of them.

John

----- Original Message ----- 
From: "Mike Sloane" <mikesloane at verizon.net>
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Sent: Saturday, May 06, 2006 6:11 PM
Subject: Re: [Farmall] Difficult F14


> The advice I was always given was to use Marvel Mystery Oil. I don't know 
> if it would work, but it can't hurt.
>
> Mike
>
> Ross Long wrote:
>> I found out what the problems was, it was sticking valves.  They seem 
>> real
>> loose when not running, but I started it without the valve cover on and
>> sprayed wd-40 on the valves when it started to miss and that stopped the
>> miss.  A fee minutes after I spray the valves it will start to miss 
>> again.  Anyone have any ideas how to get these valves not to stick.  It 
>> was
>> overhauled and the head was redone shortly before it was stored for a 
>> number
>> of years.  They must be a little too tight.
>>
>> Ross
>>
>>
>>
>> -----Original Message-----
>> From: farmall-bounces at lists.antique-tractor.com
>> [mailto:farmall-bounces at lists.antique-tractor.com] On Behalf Of John Hall
>> Sent: Friday, May 05, 2006 5:52 PM
>> To: Farmall/IHC mailing list
>> Subject: Re: [Farmall] Difficult F14
>>
>> Looking back at the original post, you said you are definetly losing #4 
>> followed by an intermittent 1 and 3, correct? I can't see how that could 
>> be fuel related nor could it be the mag unless it was in the cap, wires 
>> or plugs. Try this next time it goes to missing--check the fire at the 
>> plugs by
>>
>> grounding a screwdriver to the frame. You need about 3/16 to 1/4 spark 
>> jump.
>>
>> If that checks out then spray some WD-40 in the intake with it running 
>> and see if it helps.
>>
>> As far as the fuel pump goes I agree with everything that has been said. 
>> I have had problems with the check valves, trash, and a worn out pushrod. 
>> And
>>
>> a busted diaphragm on another tractor with a similair pump. But in all of 
>> those cases the tractor wouldn't run at all.
>>
>> One final thought, is the intake manifold tight? You did say the tractor 
>> had
>>
>> been recently rebuilt didn't you? You may be fighting bad mechanic work 
>> from
>>
>> the last guy.
>>
>>
>> Just some thoughts and ramblings.
>>
>> John Hall _______________________________________________
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>> http://www.antique-tractor.com/mailman/listinfo/farmall
>>
>> _______________________________________________
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>>
>>
>
> -- 
> Mike Sloane
> Allamuchy NJ
> <mikesloane at verizon.net>
> Website: <www.geocities.com/mikesloane>
> Images: <www.fotki.com/mikesloane>
>
> We cannot defend freedom abroad by deserting it at home.
> - Edward R. Murrow, journalist (1908-1965)
>
>
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