[AT] JD 430 update

[Spencer Yost]

Thanks Bo.   I will pull the rocker arm so all valves are closed  if I decide to go to this idea.  In fact I would try it before I pulled the head to try other methods.   The only time I tried grease in the past it actually split a head gasket.   So you definitely have to be careful.

In general  I want to hold off on pulling the head or oil pan right now.  I did check the valves to ensure they were not stuck. Another reason why I don't want to pull the head or oil pan is that I simply  think it's premature. Supposedly this tractor ran as recently as two years ago. So there's part of me that has to believe it cannot be stuck as tight as it seems. 

Splitting it would be a pain too; so I cannot get any kind of a tool on the flywheel. About the only way I have to generate safe leverage is something with the wheels or PTO. I like the 4 x 4 idea because it won't generate a lot force or shock loads but it will generate constant force. 

Congrats on the 60 Dean.   Sounds like a great tractor.   I'm hoping this tractor will prove to be that solid too.   I do wish I had a flywheel I could put a bar on. (-;

Spencer Yost

> On Jun 8, 2017, at 2:54 PM, Dean VP <deanvp at att.net> wrote:
> 
> The key to all this is to have patience. Lots of patience. ATF and Diesel
> fuel will get the job done, you just have to wait for it.  Make sure you
> have the rocker arms off.  In case you also have stuck valves.  I waited 6
> months on my JD 60 but I had other priorities to work on so it was easier to
> wait.  Every day I would tug on a bar I had attached to the flywheel. Didn't
> put the bar under constant tension which might have reduced the time. One
> day it moved just a little bit!!!.  It wasn't long until I had several
> revolutions.  Put diesel fuel in the crankcase and had my wife pull me
> around in gear with another tractor. Soon it was fully free. Wasn't long and
> I had it running.  Got it up to working temperature by putting a cover over
> the grill. A few times of that and the few remaining stuck rings broke free
> and all was cool. Never have had to overhaul it.  Really good puller and
> doesn't smoke. It too was a very low hour tractor. The PO didn't like the
> tractor because it had no power and didn't use it much. Turns out the
> governor linkage was not adjusted right. Picked up over 10HP on the dyno
> when I adjusted it right. 
> 
> Dean VP
> Snohomish, WA 98290
> 
> It's better to be judged by 12 than carried by 6. 
> 
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Bo Hinch
> Sent: Thursday, June 08, 2017 10:10 AM
> To: Antique tractor email discussion group <at at lists.antique-tractor.com>
> Subject: Re: [AT] JD 430 update
> 
> My first thought would be to make an air / grease gun adaptor to screw into
> spark plug holes . If air escapes real quickly , I would think a VALVE is
> open , if NO or little air escapes , I would fill that cylinder with oil ,
> put in my grease gun adaptor and start pressurizing that cyl . Having said
> that , grease gun pressure can reach a very high PSI  so , pay attention and
> DON`T over do it . I have done this is several headless engines .
> 
> 
>> On Thu, Jun 8, 2017 at 10:58 AM, Spencer Yost <yostsw at atis.net> wrote:
>> 
>> Thanks everyone for all the suggestions. I've got several good ones 
>> including some off-list replies. I actually think I'm going to try 
>> Mikes suggestion first and use a 4 x 4 in the wheels and then put the 
>> 4x4 on jacks so the rear wheels are a few inches off the ground. That 
>> way gravity is helping 24x7 at the same time. Also I'll have visual 
>> confirmation when the engine is free(wheels are on the ground).
>> 
>> Some of the other ideas would involve further breakdown of the tractor
>> which I'm trying to avoid.   The rocking of the single rear wheel I tried
>> but the tractor is such a tight, low hour tractor there's actually 
>> very little play to get the acceleration needed to apply any shock  
>> torque load on the engine itself.
>> 
>> Thanks!!!!
>> 
>> Spencer Yost
>> 
>> 
>> 
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