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Plugs for Z134

A

Anthony

Member
What are the best spark plugs to use in a Z134/TO-35, preferably a little hotter plug than stock? I am going to get the tractor running after several years of non-use. I think it has Champion D-21s in it right now, is that still current number and should I go with those?
 
I use auto lite 3886

But if you are a purest, I understand auto lite has moved their production off shore, so I might not be buying anymore auto lite plugs,

The off shore plugs might not be helt to the same quality standards as the US plugs,

But on the up side the auto lite plugs run good and last longer for me in my 1957 TO35, it will idle at 350 rpms, so something is set right,
 
(quoted from post at 20:00:36 06/17/16) Autolight is 386 not 3886. That's what I use.
Click to expand...
hose are resistor plugs, correct? Are there any non-resistor plugs still being made for these tractors?
 
Anthony,
I misspoke, I have some timers disease, sometimes I can remember and sometimes I can't.

I use auto lite 3116 non resistor plugs in my old TO 35.

tractor runs very good on these plugs.

point well taken on low rpm, yes it will run at that low rpm, but I have the normal operation idle set up higher,
 
(quoted from post at 11:44:43 06/18/16) Anthony,
I misspoke, I have some timers disease, sometimes I can remember and sometimes I can't.

I use auto lite 3116 non resistor plugs in my old TO 35.

tractor runs very good on these plugs.

point well taken on low rpm, yes it will run at that low rpm, but I have the normal operation idle set up higher,
Click to expand...
e used to run the TO 35 hours on end on a transplanter, about 450 rpm. Probably wasn't the best thing, but it never seemed to suffer from it. Would only speed up the engine at row end to turn around and reverse direction.
 
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