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Old 02-27-2015, 08:14 AM   #31
Bill USN-1
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Default Re: No Spark on EFI Traveler

Did you check the inlet and return pressures as discussed?
If so, what were they?

What do you mean gas is pouring from the injectors?
If you needed to add extra fuel to get it to start then that would tell me not enough gas is pouring from the injectors.

The color of the electrical terminals makes no difference. The factory injectors had paint marks on top that indicated the part.


There should be an FAQ that shows how to remove the injectors and make the regulator adjustable.

If the spider was around the spring then it will have no effect. If it was above the diaphragm then it will.

There's some specifics on how it needs to go back together or you will have problems.
I haven't finished my rebuild write up yet but here's a few tips.

The swivel button on the diaphragm goes against the seat in the housing.
The can has a square notch that must be lined up on the housing.
Use the alignment screws on the holes opposite the alignment tabs on the housing to help hold all 4 corners.







The orings and the spacer go in as shown and must go in the housing first and not on the injector.
The small filter must be seated flush so the oring does not catch it.
Use a thin film of grease to lube the injector prior to installing so the orings slide over.
There is an alignment pin on each injector that must match the slot in the housing. They are opposite on each side.
The injector must seat all the way down. You will feel it pop into place. Do not damage the lower oring or fuel will spray with just the key on.











Use a 1/4" drill to open up the tps holes to allow adjustment.



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__________________
Bill USN-1

COMMITED TO TEACHING PEOPLE THE "PROPER" WAY TO EFI
HAMILTON FUEL INJECTION
May be the answer to all your fuel injection needs!
Learn to do it right.

Last edited by Bill USN-1; 02-27-2015 at 08:21 AM..
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Old 02-27-2015, 12:47 PM   #32
cbmind
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Default Re: No Spark on EFI Traveler

Pressure was still super high after blowing out lines, no reduction that I could tell.

Was reading 90psi inlet, 50psi outlet.

To me this indicated something wrong in that section of TBI, possibly an obstruction.

Took TBI off and dismantled for inspection as last resort.

For pouring/ dripping gas- fuel from injectors was nor a spray, but more like a stream or pour, as if someone was pouring fuel out of a pitcher.

Thanks for the pics. Will do the fpr mod while it's off.

Thank you for the injector id heads up.

On another note, screens at bottom of injectors were gummed up somewhat, not helping I'm sure.
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Old 02-28-2015, 02:39 PM   #33
FDChappie
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Default Re: No Spark on EFI Traveler

After all that fuel being poured down your engine, you might consider changing the oil once you get it fixed, because most of that fuel is probably now down in the crankcase thinning out your oil.
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Old 03-01-2015, 10:28 AM   #34
cbmind
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Default Re: No Spark on EFI Traveler

Thanks, will do that.

Bill, same situation after TBI rebuild, replacement injectors, blew out lines and verified no restriction. My lines are -6 an braided hose to and from. Gauge reads 0psi on return. On crank getting 50- 60psi from pump to TBI. Injectors are still dripping or pouring, not a spray. Throttle blades cracked 1/4" tps reads .63v
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Old 03-01-2015, 11:09 AM   #35
Bill USN-1
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Default Re: No Spark on EFI Traveler

We May need to back up and cover a couple basics.
Fuel pressure.
When testing the inlet fuel pressure you should have the fitting t's into the line just before the fitting on the drivers side of the throttle body.
The fuel should flow freely through the t.
If there is any doubt then simply connect the t inline and then run the outlet into a bucket and make sure the t is not creating any restriction. That means there should be no pressure reading on the gauge with the outlet of the t going into a gas can.

If good, then connect the t to the drivers side of the throttle body. It should be a 3/8" hose.
Then run a hose from the outlet of the throttle body(passengers side) to the gas can.
Cycle the key to run and the pressure should be 11-13psi.
If high then you have a problem in your throttle body. Either a port is plugged or the regulator was turned up so much that the spring is coil bound and making the pressure max out.

If the pressure is 11-13psi then all is good in the TBI then connect the return line and check again. The inlet pressure should not change.

This is how I test all my rebuilds.










For the throttle blade setting...
Apparently I did not explain it clearly.
The 1/4" wide strip of paper should be used as a feeler gauge. That means you slip the thin side of the paper between the blade and the wall to ensure the blades are not closed up and blocking all fuel and air from getting thru.
You do not set them to the 1/4' wide gap. If you engine started it would scream to wide open rpms.
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__________________
Bill USN-1

COMMITED TO TEACHING PEOPLE THE "PROPER" WAY TO EFI
HAMILTON FUEL INJECTION
May be the answer to all your fuel injection needs!
Learn to do it right.
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Old 03-09-2015, 04:45 AM   #36
cbmind
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Default Re: No Spark on EFI Traveler

Hi bill, I haven't given up on this but had to mobilize for work. Just wanted to give an update. Leaving town for a few months.

Thanks for all your help.
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