[AT] JD A manifold

[Ben Wagner]

Tyler, on my Farmall Super A, I cheated and didn't machine the head or 
manifold.  It wasn't significantly out of true.  Maybe I should have 
machined it and made it perfect, but I cannot detect any intake leaks 
with a propane can.

If your head/manifold has significant gaps that don't pass the propane 
test, then I guess your money would be well spent in machining.

As to the flames in the exhaust, my Super A did that because it was 
running too fast and too rich.  The governor was running wide open, and 
the air filter was clogged.  But that's for a red tractor with four 
cylinders, yours may be different!

Ben in VA.


On 9/12/2012 4:39 PM, Tyler Juranek wrote:
> Hey Guys,
> I have my 1936 JD A that was my great grandpa's. For a long time, my
> dad has been telling me that it doesn't sound right idoling or at full
> throttle going down the road.
> I had two mechanics come over and check it out, and they say that the
> manifold is leaking on both sides.
> One mechanic told me it'd cost about $1000 to $1200 to get it fixed,
> because the head needs pulled off, etc.
> Supposedly it needs remachined and a new gasket put on.
> Does anyone know if a new gasket on both sides of the manifold will do the job?
> Also, on full throttle for about 10 minutes it will shoot out flames
> about 6 to 18 inches high out of the exhaust pipe.
> After being at Carston farms last weekend, and hearing some of those
> unstyled A's, it's pretty obvious that mine isn't running right, so I
> decided I better get my butt in gear and get it runnin good.
> The carb is new, and mag is rebuilt.
> Any suggestions are much appreciated!
> Take Care,
> Tyler J
>