Posted by RN on October 11, 2010 at 18:04:04 from (184.60.14.1):
In Reply to: 1946 ford 8n tractor posted by chrisparkercvilleindiana on October 11, 2010 at 17:49:10:
Vacuum but fuel not getting into cylinder? How did you measure vaccum? If valve were stuck open- has happened to some- then a vacumm gauge would read very low or none when turning engine over. A shot of ether direct into cylinder through spark plug hole would tell a little if spark was enough. Try a compression gauge at spark plug hole- 75 pounds should get you started, should be 100+ but 50/60 on up will usually start- may smoke with worn rings. A bad cylinder with stuck valve open would give a no pounds reading. 1946 should still be 9n with 3 speed tranny- a 4speed indicates 1948 8N. A 12 volt battery jump will start weak coil, poor points most time when you have a little spark on test if timing not way off. RN.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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