13BT died while driving

[jblueridge]

I was on a drive for fun today in my BJ74 when the engine stopped running. It was as if a switch had been flipped off; no coughing or sputter. Coasted safely to a side road. Turning the ignition gets a short, 1/4 second run then off. Wait a while and this can be repeated.
I opened the fuel filter bleeder a little then turned it over; diesel came out. I'm too short to turn the key and watch as the fuel exits the bleeder: I don't know how much it is.

If this was my MGB, I'd say it was ignition/spark.

 

[duncanrm]

EDIC might be shutting it off based on low oil pressure or an earth issue.. if you're confident that its got oil pressure you could pop the EDIC arm off which will leave it running.. but you'll have to manually shut it down by pushing the fuel control arm forward or stalling the vehicle.

 

[RufusTheDufus]

Sounds like the vacuum switching valve that controls engine shutdown has failed. You can unplug it from the throttle plate shutdown diaphragm and your engine should run. You'll need to plug the hose with a small bolt or screw otherwise you'll have a major vacuum leak.

 

[jblueridge]

Thanks guys!
Since I have no clue what you are talking about except in the vaguest terms, I'll have to look at pics in the manual.
Total diesel newbie here.

 

[jblueridge]

Oh yeah: it has installed, but never working for me, a electronic gizmo that lets the engine idle so the turbo can cool down after hard use even when you just turn off the key. As I said, it won't turn on, but I believe it is supposed to shut the engine off automatically after a cool-down period for the turbo.

Oil pressure can only be determined by the junky gauge Toyota put in it at the factory. It has not lost any oil.

 

[duncanrm]

Sounds like the vacuum switching valve that controls engine shutdown has failed. You can unplug it from the throttle plate shutdown diaphragm and your engine should run. You'll need to plug the hose with a small bolt or screw otherwise you'll have a major vacuum leak.

Oh.. no EDIC? My bad.. ignore my post.

 

[RufusTheDufus]

As I said, it won't turn on, but I believe it is supposed to shut the engine off automatically after a cool-down period for the turbo.

I think it's the VSV for shutdown because the engine will start for a second or so. As the alternator spins it generates vacuum. When enough vacuum is present to activate the shutdown diaphragm your engine shuts off.

I had a 13B-T that I sold. When I was first attempting to get it started in the engine stand/crate the shutdown vacuum hose was connected to the alternator vacuum source. It wasn't installed in a vehicle so there was no voltage to the VSV to close it. It would 'start' exactly as you're describing. Just pull that vacuum line. It will take you longer to open the hood than to pull the line. Then start the engine.

 

[RufusTheDufus]

Damn, sorry. I have no idea why my previous post isn't there. I linked to this topic with pictures of the line to pull.

I don't know what is happening with Mud tonight. I've tried to make this post at least a dozen times now.

 

[carpet]

Yeh what RTD said. Happened to me a couple of moths ago. Ordered a new vsv from Japan 24v and while I was waiting for the part just pulled the vac hose off the diaphragm on the air intake when wanting to start the run the truck. about $60 AUD delivered took about 4weeks though. Then mounted the new one on the firewall. Apparently the heat and vibration don't agree with it on the engine block.

 

[carpet]

Also to stop the truck you have to reconnect the vac hose!!

 

[jblueridge]

Thanks Rufus! Even I should be able to locate the diaphragm and vac line thanks to that link/pic.

It's a 30 minute drive each way so it'll wait till tomorrow. Probably.

 

[jblueridge]

Rufus, I pulled and plugged the line an hour ago and drove the car back home. THanks!

Carpet, I stalled the car out by putting it in 5th. Good idea to re-locate the little bugger up and out of the way.
Why did they put it down low... something about immersing it in a river?

 

[John Galt]

I replaced and relocated the VSV on my 13B-T the same way at about 120k.
It's part of the engine controls, and that's why it's mounted on the engine, even though that's a poor location.

 

[jblueridge]

Well I ordered a new VSV from Amayama, along with some minor plastic bits I need. Not a bad price really.

Did you guys have to run an electric extension wire to reach the new location of the VSV on the firewall?

 

[John Galt]

...

Did you guys have to run an electric extension wire to reach the new location of the VSV on the firewall?

I didn't for mine.

 

[carpet]

I did but only because i had the engine out and it was relatively easy to do.