Toyota 7FGCU35BCS:
Starts good for a second then diesels (actually runs backwards) and shuts off.

All timming gears ,chains are in proper alignment of there marks Distributor modual and pickup are new.
Got heads reworked due to heavy carbon on valves causing low compresion. Everything mechanically is right on.
  • Posted 17 Jan 2015 12:54
  • Discussion started by HTL1
  • West Virginia, United States
Showing items 1 - 14 of 14 results.
Gotcha RayTech
Sorry bout that Richard.
We will check that out
Thanks guys
Will let you know what we come up with.
  • Posted 30 Jan 2015 01:39
  • Reply by HTL1
  • West Virginia, United States
What Bulldog is saying is put timing light on now, as is, with advance wire disconnected. Do you see the marks line up with 8 deg?
Its very common for the distributor to be re-installed out of phase, off by one tooth. Timing is so advanced that it wont run with any more advance, but runs decent unhooked from from comp. If you have the dist in correctly and show close to 8 deg, then the ignition module may be fried. Always use a ground jumper to dist body when turning it to change timing. It loses ground when the bolt is loosened and can fry the ignition module.
When removing any distributor, there should always be 3 witness marks. One for base, 2nd for rotor position with dist still in, 3rd for final rotor position as distributor is pulled out. You need this last position on installation to get it back properly.
  • Posted 29 Jan 2015 22:59
  • Modified 29 Jan 2015 23:13 by poster
  • Reply by EasiTek
  • Ontario, Canada
With the advance wire disconnected it should be 8 degrees. That would be your base timing.
  • Posted 29 Jan 2015 10:29
  • Reply by Bulldog965
  • Indiana, United States
Richard
Dont know what else to do.

The good thing is that the lift is operational until we come up with a solution to the extreme advance problem when the wire is connected.
I don't like the idea of that but like I said it is running and very well at that.
I hope its a bad sensor that we haven't located yet because the controller is a big big ticket item. **** it may be a simple bad connection somewhere.
Thanks for your help.
  • Posted 29 Jan 2015 05:08
  • Reply by HTL1
  • West Virginia, United States
With the advance wire disconnected it should be 8 degrees. That would be your base timing.
  • Posted 29 Jan 2015 03:27
  • Reply by Bulldog965
  • Indiana, United States
Richard
8 degrees is spec with the advance wire to the dist. connected but we couldn't check it because it would not run long enough.
Runs like a top with the wire disconnected though.
Still researching before going back to waist more time on it.
At least now we can use it.
  • Posted 29 Jan 2015 02:18
  • Reply by HTL1
  • West Virginia, United States
With it running what was the timing?
  • Posted 28 Jan 2015 12:57
  • Reply by Bulldog965
  • Indiana, United States
Richard
Will check it out but if the map sensor was bad, then wouldn't that just cause it to run rough and surge.
  • Posted 27 Jan 2015 16:15
  • Reply by HTL1
  • West Virginia, United States
The only sensor on that unit be the map sensor. I would start at it.
  • Posted 27 Jan 2015 14:03
  • Reply by Bulldog965
  • Indiana, United States
Richard
Toy 7FGCU35-BCS 63949 AISAN LP reg
  • Posted 27 Jan 2015 13:38
  • Reply by HTL1
  • West Virginia, United States
Do you know the full model and serial number? I can figure it out? What I am looking for wouod be a round connector at the left rear side of the engine that would be in a white housing. This would let me know if it's a tier fuel system.
  • Posted 27 Jan 2015 12:48
  • Reply by Bulldog965
  • Indiana, United States
Richard
Not sure what fuel system but no check eng. light
  • Posted 27 Jan 2015 08:43
  • Reply by HTL1
  • West Virginia, United States
Which fuel system is this unit running? Tier III or TIER 4? Check engine light on?
  • Posted 27 Jan 2015 05:36
  • Reply by Bulldog965
  • Indiana, United States
Richard
Hope this helps whoever runs into it.
Never seen one of these in my 35 years.
EXTREME ADVANCE SIGNAL FROM THE *******computer.
Disconnect the wire to the distributor and she purrs like a kitten.
Now gotta find which sensor is bad.

Gotta love technology
  • Posted 21 Jan 2015 04:20
  • Reply by HTL1
  • West Virginia, United States

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