95 EFI 460
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From: Casa Grande
95 EFI 460
Hello everyone. I usually hang out over on the 80-86 board but have a question about my motorhome. It has the 460 motor. It's been sitting for a couple years and I'm now trying to get it back up and running. My question is, how do I remove the fuel line from the rail? Want to make sure it's getting fuel from the tank but can't get them apart.
Thanks
Keith
Thanks
Keith
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
Hello everyone. I usually hang out over on the 80-86 board but have a question about my motorhome. It has the 460 motor. It's been sitting for a couple years and I'm now trying to get it back up and running. My question is, how do I remove the fuel line from the rail? Want to make sure it's getting fuel from the tank but can't get them apart.
Thanks
Keith
Thanks
Keith
I will guess you mean fuel manifold.
I would use a fuel line removal tool, you push the fuel line in toward the fuel manifold, push the tool in and then pull the fuel line out. It is held in by a garter spring.
It also helps to twist the fuel line first to brake the "O" rings free.
The tool to use:
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Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
As you know the fuel pumps will only run for one second each time you turn on the key.
To get around this you can ground pin #6 of the self-test plug on the drivers side of the dog house and turn on the key. This will pick the fuel pump relay if the power relay was picked when the key was turned on. The Ignition switch picks the power relay.
To check for power in the fuel pump circuit use a test light that puts a load on the circuit, never use a meter as a meter will cause you to chase your tail.
With the fuel pump relay picked you should have power to the Inertia fuel shut-off switch near the steering column on the safety wall. If power is not getting passed the Inertia fuel cut-off switch try pushing the red button down on top of it. It should click if it was tripped. If no power is getting to the Inertia fuel cut-off switch with the fuel pump relay picked the you may have a open fuse.
Inertia Fuel Shut-Off Switch:
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To get around this you can ground pin #6 of the self-test plug on the drivers side of the dog house and turn on the key. This will pick the fuel pump relay if the power relay was picked when the key was turned on. The Ignition switch picks the power relay.
To check for power in the fuel pump circuit use a test light that puts a load on the circuit, never use a meter as a meter will cause you to chase your tail.
With the fuel pump relay picked you should have power to the Inertia fuel shut-off switch near the steering column on the safety wall. If power is not getting passed the Inertia fuel cut-off switch try pushing the red button down on top of it. It should click if it was tripped. If no power is getting to the Inertia fuel cut-off switch with the fuel pump relay picked the you may have a open fuse.
Inertia Fuel Shut-Off Switch:
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From: Casa Grande
WOW! Thanks for the pics, they really help. Been looking for that cutoff switch. Not knowing where to look or what it looked like I wasn't having much luck. There doesn't seem to be any sound coming from the pump at all now. The other day when I pulled the relays and fuses and cleaned the contacts it did try to fire a few times. But yesterday there was nothing. And when I tripped the schrader valve with a small screwdriver there wasn't any pressure. Now that I know where that switch is, and what it looks like, and now a plan of attack I'm going to check it out some more. Thanks again guy, this is really helpful.
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From: Casa Grande
Well should have known I couldn't be that lucky. I pulled and cleaned ALL the fuses again and swapped the relays around. Found the Intertia Switch and it wasn't tripped. So grounded pin 6 on the self test plug and have power going through it. Doesn't leave to many things to check. Now just have to figure out how I'm going to get to the pump to check, and how I'm going to drop that 75gal tank if I have to. But now I know a little more about the fuel system on it.
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Fleet Owner
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From: Easton,Ks
You may also want to look at this link below if you drop the tank.
F-53 Fuel Pump Change Pictures - iRV2 Forums
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F-53 Fuel Pump Change Pictures - iRV2 Forums
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From: Casa Grande
Great link. There's no tanks above my fuel tank but it would need to be right in front of the restroom door, so it's a high traffic area. I have thought about that, but also about an aftermarket inline pump. Just don't know if it will pull thru the factor pump.
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