Djet - No start, Where to next Options

[jasons]

Careful reading of the thread reveals this comment: "- the fuel pump does run for 1-2 seconds when the key is turned." I read that as the fuel pump, AND the relays work.

The Cap'n

Good point. I defer to you because you are the man.

WWKD (What would Krusty do?) (IMG:style_emoticons/default/pray.gif)

[pt_700]

i've been reading this with great interest as i have a similar problem with my '71 1.7. i have fuel pressure but, nothing's triggering the injectors to spurt. i took the dist. out and spun by hand, the trigger points do signal. should i see some current at the injectors while cranking the engine (must look pretty silly, i can twist the key with my foot while holding a test light to the injector wires - gotta love that removable roof...)?

i am planning to get under the car to check the ground strap. the car quit on me while getting some junk food a mile or two from the house. had a friend tow me home. if the ground strap appears ok, should i just clean up it's contact points or is a replacement in order?

semi related - my fuel pressure's low (was running fine that way), even though i have the regulator maxed and i see some bubbles in the clear fuel lines. time for a new pump?

thanks to all who share their knowledge on this forum. wonder how the hell we all managed / fed our addiction / affliction before the internet?!

if any fellow member needs a favor in san jose, i'm so there!

paul

[brenz]

I'll throw in the good old "timing is off". Had similar issues when getting mine fired up for the first time after going from carb back to FI (even had the "it started with starter fluid" symptom). Everything tested out fine - just had to keep playing with the distributor until it fired right up. Kinda hard for one person to do (end up flooding the engine) - very easy to check with two people (one turns the key, the other turns the distributor until it starts).

I 2nd this. Mine started fine until the cold weather set in. Had to turn the distributor until I found the right spot to catch. Thought it was my plugs but I see yours are new. And probably a good idea to look at the trigger points and make sure the contacts are clean. Still working out my own problems but it's worth a try.

[r_towle]

Wait a minute, guys. He has fuel pressure. That means the pump and hoses are installed correctly. Gotta read the whole thing .........................

The Cap'n

Lets just say that the lines are flipped and the inline fuel pressure gauge is on the back end of the loop...would that not show fuel pressure, albiet behind the regulator, but it would show pressure. Maybe?
Just thinking outloud.
I did read that he hears the pump go on and off...got that.
Relay and wiring are ok.

I may not have explained that correctly, but I hope you get my drift.

Another easy way to test is to pull all four injectors and place them in glass baby food jars. Just pull them out of the intake and leave the fuel lines attached.

Pull the main high voltage coil wire out of the car (dont leave one end near ground...just remove it, sparks are not good in this test) and turn over the car for 30 seconds.
It all fits in the engine bay,,,little jars sit right on the head tin, no real strain on the fuel lines or wiring.

Each container should have the same amount of fuel in it.
If you pass that simple test, its ignition related.
If you have fuel when cranking, you are only missing air or spark...take your pick .
If you have no fuel when cranking...trigger points are first, MPS is second, CHT is third.
A short or broken wire at any of those will kill it.
Bad CHT will do it, bad MPS will flood it, bad trigger points means no fuel at all.


Rich

[slu234]

Update......

I built a noid light out of two pre-wired 12V LED panel lights from Radio Shack. $1.99 each. I wired them in parallel with opposite polarity. Made leads about 5' long with spade connectors on the end. I used two LED's wired this way so I would not have to be concerned with polarity - I know that one of them will fire if there is voltage there.

Plugged these into the fuel injector plugs to verify that the injectors are firing.

All four injectors are firing while cranking!! So it is not the ECU. Trigger points are working. The leads were made long enough to hold in the cab while cranking the engine.

Jumpered the fuel pump to run constantly, cranked the engine and it seems like it wants to start - catches a few times but won't run.

Tried moving the dizzy - began to backfire some.

My guess at this point is needing to revisit static timing.

How would I know if my dizzy is 180 degrees off? I did a total dis-assembly and cleaning - could have put the drive cog on 180 degrees off.

Brian

[swl]

Easiest way is to pull out the distributor and just look down at the cog. It is offset from centerline just a bit but you should be able to see it. I've read of people who had it in backwards and it caught enough to operate.

[slu234]

Well.....The distributor was correct so I pulled the fuel injectors.

All four were frozen - no fuel being shot out. After some work I was able to free them up and get a good stream.

Put everything in and cranked the starter.....

.....WOO HOOOO!!!!! it started!!!! (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/smilie_pokal.gif)


I checked the dwell - it looked good.

After it warmed up I set the timing and then the idle speed. And then I did something that this car has not done since 1981...I drove it!!! (IMG:style_emoticons/default/driving.gif)

Next step is to sort out the electrical....I've got no charge from the alternator.

Thanks guys for all of your help

I truly appreciate it.

Happy New Year


Brian

[brenz]

Well.....The distributor was correct so I pulled the fuel injectors.

All four were frozen - no fuel being shot out. After some work I was able to free them up and get a good stream.

Put everything in and cranked the starter.....

.....WOO HOOOO!!!!! it started!!!! (IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/smilie_pokal.gif)


I checked the dwell - it looked good.

After it warmed up I set the timing and then the idle speed. And then I did something that this car has not done since 1981...I drove it!!! (IMG:style_emoticons/default/driving.gif)

Next step is to sort out the electrical....I've got no charge from the alternator.

Thanks guys for all of your help

I truly appreciate it.

Happy New Year


Brian

Hey Brian,
I've gone down a similar path and discovered 2 of my injectors are not firing. How did you get yours working?
Thanks,
Bryan

[benalishhero]

Bryan, I unclog mine on the bench with a 3.0 volt battery ,some parts wash and compressed air. Just fill up the injector with the cleaner, use the battery to open the injector, and then shoot the air through it. Do that about 1/2 dozen times. Should clean them out.

[slu234]

Bryan, I unclog mine on the bench with a 3.0 volt battery ,some parts wash and compressed air. Just fill up the injector with the cleaner, use the battery to open the injector, and then shoot the air through it. Do that about 1/2 dozen times. Should clean them out.

That's what I did. A few years ago when I tore into the car, this did not work so I sent them in to Mr. Injector. It was quick and cheap. All four came back spot on for flow rate. He included new screens, pintel covers, painted them, new upper and lower seals, and threw some Jolly Rancher candy in the box (not sure about that though).

It was good to see numbers on the flow report. If you do it yourself you don't know for sure how balanced they are after many years of use.

Brian

BTW....I loved driving a 914 for the first time ever. It was worth the wait.

Glad I put the time into the car.

[brenz]

Bryan, I unclog mine on the bench with a 3.0 volt battery ,some parts wash and compressed air. Just fill up the injector with the cleaner, use the battery to open the injector, and then shoot the air through it. Do that about 1/2 dozen times. Should clean them out.

That's what I did. A few years ago when I tore into the car, this did not work so I sent them in to Mr. Injector. It was quick and cheap. All four came back spot on for flow rate. He included new screens, pintel covers, painted them, new upper and lower seals, and threw some Jolly Rancher candy in the box (not sure about that though).

It was good to see numbers on the flow report. If you do it yourself you don't know for sure how balanced they are after many years of use.

Brian


BTW....I loved driving a 914 for the first time ever. It was worth the wait.

Glad I put the time into the car.

Thanks guys. I'll give that a try tomorrow night. The 1st thing I did back in March was send the injectors out to Cruzin Performance and they did a similar job cleaning and testing them. But I made the mistake of attemping to start it after several years of sitting so I might have clogged them. I've since replaced all the fuel lines including the center with s.s. so should be ok now.

Brian that's great you got to drive the car. And good to know all that work pays off. After almost a year of cleaning, testing and replacing I'm looking forward to that day soon!

Bryan