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Discussion Forum
:

WD 45 Still not running right

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Craig

03-26-2002 05:49:29




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Okay let me list all that Ive done and you guys can hopefully give me some advice as to where to restart.......

12 Volt conversion
Electronic Ignition
new coil
new spark plugs
new Spark plug wires
Rebuilt Carb Marvel Schebler 464
New manifold Gaskets----manifolds in real good shape

Its just not running right it acts like the governor isnt working or its running way too rich
or something.........

Carb set at baseline settings...........

HELP PLEASE

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Dave Grubb

03-26-2002 11:52:20




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 Re: WD 45 Still not running right in reply to Craig, 03-26-2002 05:49:29  
When I put electronic ignition on my WD45 I checked the timing and found that I had to reset it. I presume your 12 volt installation is negative ground and that your 12 volt coil is installed with the ignition wire from the distributor connected to the negative coil terminal. If you can connect a vacumn gage to the engine it should read 18-20" of vacumn and have steady needle.



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Craig

03-26-2002 12:37:57




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 Re: Re: WD 45 Still not running right in reply to Dave Grubb, 03-26-2002 11:52:20  
Where should I attach a vacume gauge at?

and how much does one usually cost?



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Dave Grubb

03-26-2002 13:11:35




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 Re: Re: Re: WD 45 Still not running right in reply to Craig, 03-26-2002 12:37:57  
My intake manifold has 1/8" or 1/4" pipe plug installed between #1 and #2 cylinder airway. I remove the plug and install a hose barb fitting whenever I want to check the vacuum. I think this port was originally where the regulator sensing tube was connected for the LP fueled tractors. If your manifold is not drilled you could drill and tap it for a fitting. I see some replacement manifolds are not drilled and taped but do have flat spot for the location of the port. I don't know the price of a large face vacuum gage today, but they shouldn't be too expensive. I got my gage at Sears maybe 15 years ago. It is also can be used for checking fuel pressure on the old style diaphram fuel pumps.

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Bryan Smith

03-26-2002 06:12:57




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 Re: WD 45 Still not running right in reply to Craig, 03-26-2002 05:49:29  
(1) In-line fuel filter, then clean the carb. Tiny amounts of rust in the fuel tank will move through the straner and casue problems. I didn't belive this until someone convinced me - and since I've added one to a B I own I've had no more problem.

(2) Check your intake manifold for leaks or holes. This usually means it runs too lean, but it casn make a huge difference. Some leaks or holes only show after the manifild warms up to operating temp.

(3) Make sure your carb float doesn't have a hole in it - shake it to make sure there's no gas inside (you already have done this I'm sure).

(4) Make sure your timing is set correctly. Incorrect timing can make a tractor do wierd things.

(5) The governor could be worn, but it should still run ok sitting still (I think).

(6) Use a single strand of wire from a 16 gauge stranded electrical wire to make sure all the ports are open in the carb.

(7) Make sure your distributor cap isn't cracked - I'm assuming you put a new one on.

That's all I can come up with for now. Burned valves or incorrectly adjusted valves can do some interesting things like this too.

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Ron

03-26-2002 08:20:42




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 Re: Re: WD 45 Still not running right in reply to Bryan Smith, 03-26-2002 06:12:57  
Disconnect the air filter hose, and see if it straightens up.... Change plugs.... even new plugs will give you problems if they are fouled... Set the plug gaps to no more than .030", even if the Electronic instructions say more....the wires, and cap won't handle the increased electrical load......and will cross-fire... Float setting may be off....is the gasket under the Seat OK.?? Take the "Load" needle out, and see if fuel runs out....with the engine "off".... WD's don't like ANY water in the sediment bowl....or the float bowl....!!! Good Luck, and we want you to get it "up, and running"..!!! Let us know.... I have NO experience with the electronic Ignition....Did you have to change the coil.?? Is it for 6v, or does it run on un-resisted 12v...??

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