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D15 not starting - banging head against wall

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TitanTn
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PostPosted: Wed Nov 13, 2013 5:12 pm    Post subject: D15 not starting - banging head against wall Reply to specific post Reply with quote

I"m struggling here. It started with a simple tune up since it hasn"t had one in years and there was a little miss every now and then. Now I can"t get it to start at all.

New parts: plugs, wires, cap, rotor, points, condenser, coil, new to me carb.

I seem to be getting great spark at each plug, and the engine passes the finger compression check. Sucks and blows hard.

The carb float has been set. Fuel is flowing easily into the carb. After attempting to crank for a few seconds and no starting, the fuel dumps back out of the carb air intake. The plugs don"t seem to look very wet at all.

The part that confuses me the most is that spraying ether in the intake doesn"t make any difference.

Every now and then the engine will catch and try to start but it doesn"t.
 
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TitanTn
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PostPosted: Wed Nov 13, 2013 5:14 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

Sorry. Should have said it's a 1960-something Series II.
 
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DiyDave
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PostPosted: Wed Nov 13, 2013 5:44 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

Wires in the right order? 1-2-4-3
 
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old
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PostPosted: Wed Nov 13, 2013 6:07 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

Seems to have good spark as in blue/white in color and jumps a 1/4 inch gap or more?? If you can not answer yes and at all four plug wires check that first.
Gas coming out the air intake tube is not good and says it is flooding. So plugs maybe gas fouled and need cleaned. Learned years ago if it isn't broke do not fix it or it will be broke. I also NEVER replace condenser since you stand a 50/50 chance the new one is bad right out of the box
 
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Jerry Coulter
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PostPosted: Wed Nov 13, 2013 6:13 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

If you used Champion plugs, try a different brand.
 
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B Johnson
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PostPosted: Wed Nov 13, 2013 6:34 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

I will bet you are 1/4 out of time. Move each plug wire 1 hole , it will either run or backfire if it backfires move them back the oposite way 2 holes.
 
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TitanTn
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PostPosted: Thu Nov 14, 2013 6:01 am    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

Yes, the wires are in that order.
 
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TitanTn
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PostPosted: Thu Nov 14, 2013 6:02 am    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

Thanks. I'll give that a try.
 
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TitanTn
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PostPosted: Thu Nov 14, 2013 6:02 am    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

They're AC Delco. R45 I think.
 
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Dick L
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PostPosted: Thu Nov 14, 2013 1:37 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

Time to start over with the timing first. Turning the engine over by hand make sure you are on the compression stroke on number one spark plug hole. (closest to the radiator) When on top dead center at the flywheel inspection hole, Make sure the rotor under the distributor cap is pointing to number one wire terminal. Loosen the distributor at the base and rotate back and forth with power on watching for spark. At this point set the distributor so the points are just ready to open.
If your firing order is 1243 it should start if it has fuel. To make sure that it is not have a fuel blockage if it doesn't start shoot a puff of starting fluid into the carburetor.
 
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TitanTn
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PostPosted: Thu Nov 14, 2013 3:03 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

This is a great explanation and very easy to follow. I"ve confirmed TDC and the rotor is pointing to number 1. I adjusted the distributor as you explained.

Still no go. It tries to catch every now and then but it won"t. ether makes no difference.
 
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Dick L
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PostPosted: Thu Nov 14, 2013 3:51 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

If you have a good blue spark then it is time to get into the fuel system. Like I said before, try puffing some starting fluid into the carburetor.

You might check to see if you forgot the venturi when you assembled the carburetor. Without that it will not have enough vacuum to pull fuel out of the little feed tube in the neck of the carburetor.
 
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TitanTn
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PostPosted: Thu Nov 14, 2013 4:00 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

I've gone through the carb several times. I've never professed to be a carb master technician, but I'm feeling pretty comfortable with this one by now. The venturi is in place. I am a little suspicious that the fuel is not being sucked up through the intake manifold. The plugs are not really wet at all. But spraying ether in the carb or in the plug holes doesn't make any difference at all.

So confused.
 
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Dick L
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PostPosted: Thu Nov 14, 2013 4:40 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

Put you hand over the carburetor when cranking it over at full cranking speed. or remove the carburetor and see how much vacuum you have at the manifold. If it trys to suck your hand into the manifold you have enough vacuum to start the tractor. When you cleaned the carburetor did you remove the power jet seat and the discharge tube?

If all of this checks out I would get back to top dead center on number one cylinder and remove the valve cover and make sure both rocker arms are up so you can get a .010 feeler gage on top of both the intake and exhaust valves for number one cylinder.
 
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chalmersbob(Pa)
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PostPosted: Thu Nov 14, 2013 6:55 pm    Post subject: Re: D15 not starting - banging head against wall Reply to specific post Reply with quote

remove a plug or 2 and squirt gas into the cylinder. Replace the plug and see if it fires. LOL Bob
 
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