Allis Chalmers 500:
No Start

Hey guys, I have this old AC that won't start. Turns over but very slow even while being boosted. Checked cap and rotor,wires,plugs all ok. checked propane system seems ok.. It seems no matter where you position the for/rev pedal there is no difference Need some ideas. Thanks Rich
  • Posted 21 Nov 2008 08:37
  • Discussion started by rich_k
  • Ontario, Canada
Showing items 1 - 3 of 3 results.
do a voltage drop test on the starter cable
hook up 1 lead of the meter to the B terminal of the battery
hook up the other to the large cable terminal on the starter (the threaded post with alligator clips, not the cable terminal ring)

if the cable is good the voltage while cranking will be around 0v
if the cable is bad it will read voltage (even just 1 or 2 volts is bad and would indicate resistance in the cable where there should be none)

repeat this test for the negative cable (B- and the engine block or the metal housing of the starter)
  • Posted 22 Nov 2008 07:46
  • Modified 22 Nov 2008 07:52 by poster
  • Reply by justinm
  • New York, United States
New York, New York its a heluva town..you know that The Bronx is up..and I'm Brooklyn down
and the Ignition timing? and try a new battery, your old batery may be revesing polarity and still drawing down the boost, rather than the boost going to the starter...
  • Posted 21 Nov 2008 22:18
  • Reply by edward_t
  • South Carolina, United States
You say if turns over but very slow even while being boosted.
Have you checked out the starter???
  • Posted 21 Nov 2008 12:26
  • Reply by tom_v
  • United States

Having trouble using the Discussion Forums? Contact us for help.

Forkliftaction.com accepts no responsibility for forum content and requires forum participants to adhere to the rules. Click here for more information.

Featured Business
Hawker Powersource
HAWKER offers a complete line of battery and charger motive power solutions.
Machinery-onQ Listings
Caterpillar NSR20N
  • CaterpillarNSR20N
  • 2011 | Used - Sale
  • France
Linde L12AP
  • LindeL12AP
  • 2014 | Used - Sale
  • Germany
  • EUR 3,900
BT RRE160
  • BTRRE160
  • 2011 | Used - Sale
  • Belgium
Toyota 8FD25
  • Toyota8FD25
  • Used - Sale
  • Belgium
Bomaq BW115AC
  • BomaqBW115AC
  • 2000 | Used - Sale
  • Japan
Bolzoni Auramo FK2510A
  • Bolzoni AuramoFK2510A
  • 2013 | Used - Sale
  • Belgium
Hyster RS46-36CH
  • HysterRS46-36CH
  • 2015 | Used - Sale
  • Germany
Toyota 8FD15
  • Toyota8FD15
  • 2011 | Used - Sale
  • Japan
Kaup 2T409
  • Kaup2T409
  • Used - Sale
  • Belgium
Taylor TXH350L
  • TaylorTXH350L
  • 2015 | Used - Sale
  • United States
  • USD 185,500
Featured Business
Lift Tek Elecar
Global leader in the design and manufacture of masts, carriages, integral sideshifters & fork positioners.
Machinery-onQ Listings
Kaup 2T409
  • Kaup2T409
  • Used - Sale
  • Belgium
Taylor TXH350L
  • TaylorTXH350L
  • 2015 | Used - Sale
  • United States
  • USD 185,500
Bolzoni Auramo FK2510A
  • Bolzoni AuramoFK2510A
  • 2013 | Used - Sale
  • Belgium
Linde L12AP
  • LindeL12AP
  • 2014 | Used - Sale
  • Germany
  • EUR 3,900
Hyster RS46-36CH
  • HysterRS46-36CH
  • 2015 | Used - Sale
  • Germany
Toyota 8FD15
  • Toyota8FD15
  • 2011 | Used - Sale
  • Japan
Bomaq BW115AC
  • BomaqBW115AC
  • 2000 | Used - Sale
  • Japan
Caterpillar NSR20N
  • CaterpillarNSR20N
  • 2011 | Used - Sale
  • France
Toyota 8FD25
  • Toyota8FD25
  • Used - Sale
  • Belgium
BT RRE160
  • BTRRE160
  • 2011 | Used - Sale
  • Belgium