Hyster S50XM:
start delay module

We had a recurring issue with breaking starter nose cones. We eventually installed the delay module and everything worked fine. Abour 3-4 weeks later, the engine does the same thing. As soon as the module kicks the spark in, it fires irratically and the engine fights the starter motor. When we back the timing off to almost negative degrees it starts a little easier but still not perfect.
Would this be an issue with a worn out engine? There does not seem to be anything we can do to prevent the odd firing. Modules, whole distributors, nothing seems to change it.
Any ideas?
  • Posted 16 Apr 2013 05:28
  • Discussion started by mowers
  • Alberta, Canada
Showing items 1 - 4 of 4 results.
Are you saying that for the first second or so everything is fine, then once the igntion gets power the fighting of ignition spark vs starter cranking occurs?

If this is the case, I've had Toyotas do kind of the reverse, that during cranking the timing would **** to where the engine would barely start. Once the engine did start & the starter was disengaged everything went back to normal.

I checked this by using a seperate battery for the starter & totally isolating the starter circuit during cranking. Once the draw of the starter was isolated, the ignition system worked normally while cranking.

I then replaced the distributor & haven't had a problem since.

After posting I re-read your question & noticed it seems you may have already replaced the distributor- if so- was it an aftermarket or Hyster original? I haven't had good luck with aftermaarket distributors- they seem to work correctly for a short while the have a multitude of different issues
  • Posted 16 Apr 2013 22:07
  • Modified 16 Apr 2013 22:12 by poster
  • Reply by bbforks
  • Pennsylvania, United States
bbforks (at) Hotmail (dot) com
Customers love technology- until they have to pay to fix it!
Put a good set of silicon plug wires on to rule out your ignition wires leaking,do not run any wires under the distributor,you can also plumb in a 4 lbs n/o oil pressure switch into oil pressure gallery and tie it in series to the distributor wiring so that there is no ignition until oil pressure is achieved ,once the engine is spinning ,oil switch closes and ignition is applied.If you do both of those things it should correct the fault.
  • Posted 16 Apr 2013 12:14
  • Modified 16 Apr 2013 13:34 by poster
  • Reply by jason_e
  • British Columbia, Canada
it's the 3L 4 cylinder. Definitely not an issue with the starter or the 4 we changed over the last 2 months. It's almost like a pre-ignition issue. The engine simply wants to reverse itself on start up. Once it runs it is perfect.
  • Posted 16 Apr 2013 07:37
  • Reply by mowers
  • Alberta, Canada
Have you changed the starter mounting bolts if the Knurl on them is worn and they are loose in the holes this may be an issue....also does the end of the starter have a brace to support the starter...this will help also..... I take it this is a GM 4.3L Engine??
  • Posted 16 Apr 2013 05:42
  • Reply by kevin_t
  • Pennsylvania, United States

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