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AC ACC40 Forklift Help - Weak Spark
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mynameisjonas View Drop Down
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Joined: Yesterday
Location: 90250
Points: 2 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mynameisjonas Quote  Post ReplyReply Direct Link To This Post Topic: AC ACC40 Forklift Help - Weak Spark
    Posted: Yesterday at 2:51pm
I have what I believe to be an AC ACC40 4 Cyl Propane forklift that is not running. It was running OK before we did some service and now we can't get it to fire again, and the spark is very weak. I replaced the voltage regulator, plugs, wires, cap, rotor, and coil. It turns over fine, but it will not fire. 

There has been some "modifications" to the electrical systems so I don't know where to go from here to diagnose the problem. The distributor is wired to the negative post on the coil and I believe that is correct due to "negative ground". I don't know what might be causing the weak spark with all of the new parts. 

Any help would be great! 


Battery is 12.6 volts
Power at the new coil is 10.2 volts 

Parts - mostly sourced from NAPA

Coil: Part #: BK S67080

Dist Cap: MPE RR181SB

Dist Rotor: MPE RR182SB

Wires: BK S65034
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Eric B View Drop Down
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Joined: 09 Feb 2012
Location: British Columbi
Points: 967 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Eric B Quote  Post ReplyReply Direct Link To This Post Posted: 17 hours 31 minutes ago at 12:27am
Hi Jonas, if you can include some details that would be helpful.  
Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal!
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DonBC View Drop Down
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Joined: 12 Sep 2009
Location: Courtenay, BC,
Points: 942 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DonBC Quote  Post ReplyReply Direct Link To This Post Posted: 6 hours 1 minutes ago at 11:57am
Probably need a new coil. If the coil gets hot when running it would be a bad coil.
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jaybmiller View Drop Down
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Joined: 12 Sep 2009
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Points: 24583 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jaybmiller Quote  Post ReplyReply Direct Link To This Post Posted: 1 hour 10 minutes ago at 4:48pm
also , might need new 'condenser' ( capacitor). if it's the wrong value, you'll get a weak spark.
3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

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