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Harry Ferguson Tractors Discussion Forum
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TO 30 Resurection

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Jim Gorter

06-04-2007 10:50:45




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Saturday bought a new 6 volt batt and cleaned up cables and installed. changed oil and filter and flushed out the radiator. Pulled plugs and shot some ATF in the cylinders. Removed the fuel tank and valve cover and lubed and checked the tappet clearance. With plugs out,engines spins ok but when I put the plugs back in, the starter will not turn it over. Pulled starter and it spins great. Lubed bendix and reinstalled... nothing but a solenoid click. What should I be looking for? Thanks, Jim.

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Jim Gorter

06-04-2007 16:56:44




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 Re: TO 30 Resurection in reply to Jim Gorter, 06-04-2007 10:50:45  
Jerry and John, Thanks for the replys. Jerry; this machine has been modified, and i am not sure about the components. It has a simple on-off key switch and a starter button on the dash. No key so i will change out that Item. Im not sure about the solenoid,will remove the wires and clean up for better connection. both cables are heavy duty.
John, The ground cable is on a bellhousing bolt, I will remove and clean up any corrosion. I cleaned and regapped the points, still have a weak yellow spark, maybe condensor or weak coil?
Is there a way to check the voltage draw on the starter? Thanks for all the help. Btw, when I removed the tank, there was a huge piece loose in side, looks like two pressed steel baffle plates got loose or else two ends got left inside and were sealed in, They are nice and shiney. Jim

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Jerry/MT

06-04-2007 22:02:47




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 Re: TO 30 Resurection in reply to Jim Gorter, 06-04-2007 16:56:44  
The yellowish spark is not good. It needs to be FAT & BLUISH-WHITE, kinda' like lightning.(You can tell we had thunderstorms here today.)Check your points for cleanliness, lack of corrosion, pitting, and correct gap.( to clean them, pull a strip of clean paper between them with the points closed. If there's oil on them this wil clean them off. make sure that your shaft/bushing is not worn. With the points closed, it you push on th eshaft radially (from the side) there should be no motion at the points. The allowable shaft runout is like 0.002". Make sure that you have near battery voltage to the battery side of the coil and near zero voltage at the points WITH THE POINTS CLOSED.

Make sure that you coil is hooked up correctly. The wire going from the coil to the distributor should be attached to the coil terminal that has the same sign as the baterry ground. If you have a 6V positive ground battery then the distributor wire should be hooked to the (+) terminal of the coil. the wiring for your solenoid should only provide power to the starter. The coil is energized with the push button. WHENEVER YOU TRY TO START UP, BE CAREFUL TO MAKE SURE THAT THE TRACTOR IS NOT IN GEAR BECAUSE THIS SET UP HAS BYPASSED AN IMPORTANT SAFETY FEATURE ON YOUR TRACTOR. I.E. THE STARTER SAFETY SWITCH. People have been run over by starting the tractor in gear. In my opinion, you should try to get the OEM set up working on your tractor ASAP.

I too live with a broken fuel tank baffle. It keeps things stirred up in my relatively clean tank so I put an in line filter in the fuel line.

You really need to measure the amps for a load test of the starter. I think I've heard some voltage numbers like 4.5 volts at the starter with full current draw. if there is an auto electric shop near you or maybe even an auto parts store they'll usually check the starters for free.
Hope this helps you.

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gshadel

06-04-2007 16:40:53




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 Re: TO 30 Resurection in reply to Jim Gorter, 06-04-2007 10:50:45  
Jim, sounds like a dead battery or rusty connection. Check you wiring connections, clean, shiny & tight, and follow the other guys advise... and charge your battery for a couple hours.... then try again. Make sure your battery load connectors ( big fat wires) on both sides of your solenoid are clean, shiny & tight. 6Volt systems don't tolerate rusty connections as well as 12V connections.
Sounds like you are doing all the right things... I'm sure youo will get'er going!

George

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Jim Gorter

06-04-2007 17:13:37




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 Re: TO 30 Resurection in reply to gshadel, 06-04-2007 16:40:53  
George, The battery is brand new. Will take off all the connections and clean up and retighten. The solenoid sits under the battery box and has seen better days. Thanks, Jim



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John(UK)

06-04-2007 14:17:05




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 Re: TO 30 Resurection in reply to Jim Gorter, 06-04-2007 10:50:45  
Move the ground lead from the back of the dash to one of the bolts close to the starter as it won't be making a good contact now after 50 years. it may have enough power to spin it over without a load (plugs) but it needs a lot more with them in. You may find the pipe to the oil pressure gauge getting hot as it is using that to make a ground connection to the tractor frame. The ground should be positive on these tractors.

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Jerry/MT

06-04-2007 11:52:06




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 Re: TO 30 Resurection in reply to Jim Gorter, 06-04-2007 10:50:45  
How about a little more info? Does the starter turn and the engine not turn over or does the starter not turn at all? (You should not have "...lubed the Bendix". The starter drive should be dry otherwise it will collect all manner of crap and corruption.) I take it the engine was spun by the starter with the plugs out, but not with the plugs in.
Here's what I would do. First, make sure that the battery terminals and cable terminals are brite and tight; no corrosion.
Then make sure that you have battery voltage from the battery side of starter switch, on the starter side of the starter switch and at the starter lug, WHEN transmission lever is in the "S" position. If it doesn't, you the place between the last battery voltage reading and no voltage is the proble. Could be trhe starter switch which needs adjustment or replacement, or a cable connection, etc. Make sure that the battery ground connection to the dash is clean and tight; no rust or corrosion. Make sure you don't have automobile type 4 gauge starter cables. You need O or OO cables especially if you have a 6V system. If your starter makes a whirring noise and the engine doesn't turn over your starter drive needs replacement.
Finnaly, if all this stuff checks out then your starter brushes may be worn or the commutator on the armature may be glazed or worn and you'll need to replace the brushes and/or clean the commutator. You can take it to an auto electric shop and they can test it for you and probably supply the parts.

Opp's, I just read the part about "...the solenoid clicks!" You must have a nonstandard set up because the TO-30 doesn't have a solenoid in the OEM configuration. A clicking solenoid is usually a sign of a dead battery or dirty battery connections but it can also mean a bad starter.

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