timing using a jumper wire - Maintenance & Troubleshooting discussion in Forkliftaction's forums

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timing using a jumper wire

we are in a class at a technical college where we just rebuilt an engine in this forklift. We are almost certain that it is out of time, but we were told that in order to get it back in time we have to use a jumper wire on the ecu test port. Anyone have any experience with this? The ecu test port is right out in the open on top of the motor so it's easy to find, we just aren't sure what we are doing! Thanks for any feedback.

Posted 22 Mar 2014 04:15
By broccolli_phil
joined 3 Feb'14 - 1 message
Ohio, United States

Phil_H

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yep
it would help to know what make/model engine is in the lift
but as edward said, timing is all in setting #1 piston on TDC and then setting the rest of the components on thier marks

this old style with distributor? or is it electronic ignition?
u say it has ecu so can we assume it has coil packs and no distributor? It would then have a reluctor wheel or something to count revolutons on the crank somewhere. And of course you still have to deal with valve timing etc.

without knowing the make of the engine we're all just spinning our perverbial wheels so to speak ;o)

Posted 22 Mar 2014 13:17
By swoop223
joined 23 Mar'12 - 3,691 messages
North Carolina, United States

You've been swooped!
swoop223@gmail.com

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hmmmm...
me thinks there are more than 1 choice/possibility of motors and related ignition systems for this model truck. Please provide either year of first sale or serial number of unit, along with a description of the motor as best as you can.

All that said, -I- don't need any jumper* to put any of these optional engines 'in time", as "in time" is a mechanical relationship between engine components, and if they are 'in time' with the engine stopped, they will be **** close to 'in time' just the same once everything get spinning,

I put an asterisk on 'jumper' because I am guilty of using a wire to feel the top of the piston through the spark plug hole, to bring # up to TDC, and then check all the other components/marks

Posted 22 Mar 2014 08:45
Modified 22 Mar 2014 08:49 by poster
By edward_t
joined 5 Mar'08 - 2,334 messages
South Carolina, United States

"it's not rocket surgery"

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