Now that the weather is a bit cooler, my 1987 HJ60 (2H - 24V) needs at least two glow cycles to get going.
This is the scenario:
- Cool morning
- Cycle glow plugs
- Glow light goes off
- starts fine, (no smoke)
- runs for 5-7 seconds @ 650RPM, stalls (relay on the passenger side clicks)
- Re-glow, starts
- runs for 5-7 seconds @ 650RPM, stalls (relay on the passenger side clicks)
- Re-glow, starts, keeps running... off to work I go.
So, time to debug...
New oil (Rotella 15-40) and Toyota oil filter.
I changed the fuel filter, drained the water separator, bled the lines.
I checked the glow circuit; 3-4 sec at 21volts, then down to 10-11 volts for a few seconds, relay on the passenger side clicks.
All glow plugs are good, all have resistance.
Check the fuel pressure sender.
When engine is off, it reads ~30ohms. (pretty much a dead short) When engine is running it reads "open" (infinity)
I could not tell how fast it goes from 30ohm to infinity... regardless, the engine was a little warm anyhow.
When I grounded the oil pressure wire I can duplicate the 5sec run and stall. (so that part of the edic circuit is working correctly)
I'm going to try and disconnect the wire in the morn and see if it starts.
If it does, then its sender related.
so, I suspecting that:
a) the engine when cold take s amore than 5 seconds to build enough pressure at the sender,
b) faulty sender when oil is cold/thick.
As anyone experience this?
Would turning up the cold idle rectify this?
Should I pull the hand throttle a click?
Install a new sender?
different oil?
or?
Thanks
Mike
This is the scenario:
- Cool morning
- Cycle glow plugs
- Glow light goes off
- starts fine, (no smoke)
- runs for 5-7 seconds @ 650RPM, stalls (relay on the passenger side clicks)
- Re-glow, starts
- runs for 5-7 seconds @ 650RPM, stalls (relay on the passenger side clicks)
- Re-glow, starts, keeps running... off to work I go.
So, time to debug...
New oil (Rotella 15-40) and Toyota oil filter.
I changed the fuel filter, drained the water separator, bled the lines.
I checked the glow circuit; 3-4 sec at 21volts, then down to 10-11 volts for a few seconds, relay on the passenger side clicks.
All glow plugs are good, all have resistance.
Check the fuel pressure sender.
When engine is off, it reads ~30ohms. (pretty much a dead short) When engine is running it reads "open" (infinity)
I could not tell how fast it goes from 30ohm to infinity... regardless, the engine was a little warm anyhow.
When I grounded the oil pressure wire I can duplicate the 5sec run and stall. (so that part of the edic circuit is working correctly)
I'm going to try and disconnect the wire in the morn and see if it starts.
If it does, then its sender related.
so, I suspecting that:
a) the engine when cold take s amore than 5 seconds to build enough pressure at the sender,
b) faulty sender when oil is cold/thick.
As anyone experience this?
Would turning up the cold idle rectify this?
Should I pull the hand throttle a click?
Install a new sender?
different oil?
or?
Thanks
Mike