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I converted over to a carb last year, powering an external fuel pump with the lead that went to the stock fuel pump. Everything worked fine.
I pulled the engine out of it this weekend to replace it with a 383 I've built. While I have the engine out, I got a hair up my *** to eliminate the A/C evaporator & housing, and related remaining A/C stuff. (Compressor already removed last year)
Below is a pic of a relay (?) that I thought was mounted below the blower motor, but could have been mounted to the side as in the diagram I found in my shop manual.
Does this look like the fuel pump relay?
I was thinking of just wiring up the external fuel pump to a separate relay triggered by an ignition on lead, and bypassing the stock relay and oil pressure switch, although I haven't due to it would not shut off in the event of an accident. Any other ideas on powering the fuel pump on a carbed converted over?
Thanks,
Carl
Last edited by cohocarl; Aug 11, 2015 at 07:06 PM.
Below is a pic of a relay (?) that I thought was mounted below the blower motor, but could have been mounted to the side as in the diagram I found in my shop manual.
Does this look like the fuel pump relay?
I was thinking of just wiring up the external fuel pump to a separate relay triggered by an ignition on lead, and bypassing the stock relay and oil pressure switch, although I haven't due to it would not shut off in the event of an accident. Any other ideas on powering the fuel pump on a carbed converted over?
Thanks,
Carl
The image that's shown next to your relay - is that directly from a FSM for an '85? I believe I've seen a similar error in an '86 FSM except that the BOOSTER wasn't labeled as the blower motor. That image should be titled LH front of dash because the relay location and the C106 connector is appropriate and both are just to the right of the booster. The 12HC14 looked like it may be from an FSM so I thought I'd ask.
In the 8A201 section maybe 3 or 4 pages deep. Interesting it's an error that's maybe in more than 1 MY FSM.
The relay is certainly the blower relay but the other image is very interesting. Change blower to booster and LH side of dash and all should be well. Look for an image that just says "REAR OF ENGINE COMPARTMENT" maybe 10 - 12 pages deep in the 8A201 section.
I don't know that a cut-off for the pump can be accomplished with anything other than an inertia switch. Here's a really inexpensive inertia switch from FORD XF32-9341-AA - likely on all dealers shelves, Amazon or eBay with the last maybe being the least expensive but there's likely other options.
The image that's shown next to your relay - is that directly from a FSM for an '85? I believe I've seen a similar error in an '86 FSM except that the BOOSTER wasn't labeled as the blower motor. That image should be titled LH front of dash because the relay location and the C106 connector is appropriate and both are just to the right of the booster. The 12HC14 looked like it may be from an FSM so I thought I'd ask.
In the 8A201 section maybe 3 or 4 pages deep. Interesting it's an error that's maybe in more than 1 MY FSM.
The relay is certainly the blower relay but the other image is very interesting. Change blower to booster and LH side of dash and all should be well. Look for an image that just says "REAR OF ENGINE COMPARTMENT" maybe 10 - 12 pages deep in the 8A201 section.
I don't know that a cut-off for the pump can be accomplished with anything other than an inertia switch. Here's a really inexpensive inertia switch from FORD XF32-9341-AA - likely on all dealers shelves, Amazon or eBay with the last maybe being the least expensive but there's likely other options.
Thanks for the info guys.
The image of the "blower" mislabeled makes sense now. The shop manual I have is on a CD in a .pdf that I bought on either ebay or Amazon quite a few years ago. It's probably a Chinese copy that booster and blower got mixed up.
Below is a printscreen of the first two "pages".
Thanks for the info on the inertia switch. That's probably the route I'll go. I remember my 75 MGB had an overactive inertia switch that would trip out every so often if I hit a good bump.
While I was on Photobucket, I also copied over a pic of my new D.D. I picked up a couple weeks ago.
The shop manual I have is on a CD in a .pdf that I bought on either ebay or Amazon quite a few years ago. It's probably a Chinese copy that booster and blower got mixed up.
Looks like its the "Red Cover" CD, I think you got a good copy. The paper FSM is full of errors and excessively complicated R&R procedures. Your car might not get fixed if your Tech isnt the brightest bulb in the pack.
85 Fuel Pump Relay (?) (carbed)
I think you got a good copy. The paper FSM is full of errors and excessively complicated R&R procedures. Your car might not get fixed if your Tech isnt the brightest bulb in the pack.
