Fuel Starvation on L3130

[doug2500]

Replaced the lift pump this afternoon. Bled the whole system. Runs great now. Thanks everybody for the advice.

Just one thing. The rear injector now has the tiniest leak at the connector. I would guess it's less than a drop and hour. Maybe even less than that. It's tight, no question about that. This is the connector I completely disconnected. A few questions:

Do I need to hold the injector body with one wrench while turning the connector nut with the other wrench. Or can I just use one wrench?

Is the injector threaded into the head or pressed in?

Is the head cast iron or aluminum?

Any ideas how to get that last trivial seepage to stop?

 

[JerryMT]

Replaced the lift pump this afternoon. Bled the whole system. Runs great now. Thanks everybody for the advice.

Just one thing. The rear injector now has the tiniest leak at the connector. I would guess it's less than a drop and hour. Maybe even less than that. It's tight, no question about that. This is the connector I completely disconnected. A few questions:

Do I need to hold the injector body with one wrench while turning the connector nut with the other wrench. Or can I just use one wrench?

Is the injector threaded into the head or pressed in?

Is the head cast iron or aluminum?

Any ideas how to get that last trivial seepage to stop?

Glad you got it running and fixed the problem!

As i said previously, I don't have any direct experience with your tractor model so I'll give you my opinion based on my experience with tractors in general.

Was there a crush washer on the fitting or an o-ring? If so, you might consider replacing them.
Look for torque limits on the fittings. It may be in the owners manual or in the shop manual for sure. Don't just reef down on the fitting. If you don't have a shop manual maybe someone will answer the question who does know.
I think it's always a good idea to use a wrench to hold one part of the fitting while you use another to tighten it. You don't want to generate pre-loads in the fuel lines.

I doubt that the injector as pressed in but I'd look at the parts manual for a clue.( http://www.messicks.com/ku/85319?sectionid=218896&diagramid=356259) Looks like there are some parts that should be replaced (copper washer, etc.)
As far as the material for the head, I'm sure it's cast iron. No brownie points for making a tractor lighter in weight

 

[North Idaho Wolfman]

The head is cast iron.
Injectors are thread fitted into the head not pressed.
Hold the injector with a wrench when you tighten the line with another wrench.
Before you tighten it, loosen it up a little and wiggle the line to help it re-seat in the fitting.