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post #1 of 6 (permalink) Old 05-31-2013, 06:52 PM Thread Starter
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Non-Alfa Mechanical Question

I've sold all my little Spiders and while I'm looking for my next Alfa (4dr pre 75) I thought I'd have some fun. I came across an early 60's Ford Ranchero Falcon. In-line 6 with manual shift. When I looked at the car, it was blocked in with other cars so no actual test drive, more like test move. Was able to move it few feet up and then back. Engine runs strong, clutch take up is solid. Everything sounds good until I hit the brakes. The engine dies immediately. I believe I'm dealing with a vacuum leak but where would that be (from the carb to...)? Or is it something more serious?

1984 Moto Morini 3 1/2 Sport
1990 BMW GS100
1991 Bimota YB10
2001 BMW 525i Touring
2007 Mercedes R350 AWD
2004 BMW Boxer Cup Replika 193/300
PAST RIDES(abbreviated list): 1969 Spider 1750, 1969 Berlina x2, 1974 Spider x2, 1979 Spider, 1982 Spider x2, 2001 Jaguar XJR, 2011 BMW 328i, 2002 BMW R1150R, 2004 BMW Rockster Edition80 169/2003, 1968 Firebird Convertible, 1968 BMW 1600
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post #2 of 6 (permalink) Old 05-31-2013, 07:01 PM
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Everything sounds good until I hit the brakes. The engine dies immediately. I believe I'm dealing with a vacuum leak but where would that be (from the carb to...)? Or is it something more serious?
Probably not serious. My guess would be a massive vacuum leak in the power brake servo (assuming it has power brakes) Try disconnecting the vacuum hose to the servo, plug the hose so the intake manifold can't suck air, and see if the symptom goes away. You can probably drive it without power brakes, though if you get into an accident, don't tell the CHP I suggested it!

If it doesn't have power brakes, then I'm stumped!

Jay Mackro
San Juan Capistrano, CA

'65 Guilia Sprint GT
'67 Duetto
'91 164L
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post #3 of 6 (permalink) Old 05-31-2013, 07:06 PM Thread Starter
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Jay, thanks so much for your advice. Silly me, I didn't check if it had power brakes. Will call owner. I'm still in negotiation stages. Thought it'd be a neat little parts hauler. CHP will never get anything out of me!

1984 Moto Morini 3 1/2 Sport
1990 BMW GS100
1991 Bimota YB10
2001 BMW 525i Touring
2007 Mercedes R350 AWD
2004 BMW Boxer Cup Replika 193/300
PAST RIDES(abbreviated list): 1969 Spider 1750, 1969 Berlina x2, 1974 Spider x2, 1979 Spider, 1982 Spider x2, 2001 Jaguar XJR, 2011 BMW 328i, 2002 BMW R1150R, 2004 BMW Rockster Edition80 169/2003, 1968 Firebird Convertible, 1968 BMW 1600
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post #4 of 6 (permalink) Old 06-01-2013, 04:32 PM Thread Starter
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The owner just informed me that the Ranchero does NOT have power brakes. Could be a short in the brake switch??? Weird.

1984 Moto Morini 3 1/2 Sport
1990 BMW GS100
1991 Bimota YB10
2001 BMW 525i Touring
2007 Mercedes R350 AWD
2004 BMW Boxer Cup Replika 193/300
PAST RIDES(abbreviated list): 1969 Spider 1750, 1969 Berlina x2, 1974 Spider x2, 1979 Spider, 1982 Spider x2, 2001 Jaguar XJR, 2011 BMW 328i, 2002 BMW R1150R, 2004 BMW Rockster Edition80 169/2003, 1968 Firebird Convertible, 1968 BMW 1600
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post #5 of 6 (permalink) Old 06-01-2013, 05:03 PM
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The owner just informed me that the Ranchero does NOT have power brakes. Could be a short in the brake switch??? Weird.
That is weird. I'm skeptical about the "short in the brake switch" theory - I'd think that would either blow a fuse, or melt a wire. If it blew the fuse, that would happen immediately, and wouldn't effect the engine. If it melted a wire, you'd smell it! A quick test would be to see if the brake lights work.

Jay Mackro
San Juan Capistrano, CA

'65 Guilia Sprint GT
'67 Duetto
'91 164L
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post #6 of 6 (permalink) Old 06-01-2013, 05:13 PM Thread Starter
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Originally Posted by Alfajay View Post
That is weird. I'm skeptical about the "short in the brake switch" theory - I'd think that would either blow a fuse, or melt a wire. If it blew the fuse, that would happen immediately, and wouldn't effect the engine. If it melted a wire, you'd smell it! A quick test would be to see if the brake lights work.
Once again, your answer is on the money. I put an offer on the truck and awaiting response. I also asked one of the fleet caretakers to take another look at the situation. Was hoping to take it for a parts run to the Pomona show tomorrow but its getting late in the day and I'm not sure I'd to take a vehicle with an issue for a 65 mile drive one way. Provided I get it, of course.

1984 Moto Morini 3 1/2 Sport
1990 BMW GS100
1991 Bimota YB10
2001 BMW 525i Touring
2007 Mercedes R350 AWD
2004 BMW Boxer Cup Replika 193/300
PAST RIDES(abbreviated list): 1969 Spider 1750, 1969 Berlina x2, 1974 Spider x2, 1979 Spider, 1982 Spider x2, 2001 Jaguar XJR, 2011 BMW 328i, 2002 BMW R1150R, 2004 BMW Rockster Edition80 169/2003, 1968 Firebird Convertible, 1968 BMW 1600
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