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Cattle Boards
Trucks, Tractors & Machinery
Ford 4000 thermostart info?
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<blockquote data-quote="cfpinz" data-source="post: 1446279" data-attributes="member: 2383"><p>I've never seen one of the actual reservoirs go bad and start leaking. I think they have two flared fittings and one nipple type with a piece of hose connecting it to the third line. My bet would be one of those fittings is leaking, and most likely the hose has dry rotted between the nipple and steel line. Snug up both flares and replace the fuel hose before you spend the money on a new part. That's not a pressurized part, the lines are 1. a return from the injector overflow, 2. a return to tank, and 3. a supply to Thermostart. </p><p></p><p>The Thermostart is basically a single glow plug that heats up some fuel and sends it into the intake manifold as you start it. It's activated by holding the switch in the first spring loaded position for 10 or 15 seconds prior to moving the key to the 2nd spring position to activate starter. Never use ether with a Thermostart, my apologies if you already knew that.</p></blockquote><p></p>
[QUOTE="cfpinz, post: 1446279, member: 2383"] I've never seen one of the actual reservoirs go bad and start leaking. I think they have two flared fittings and one nipple type with a piece of hose connecting it to the third line. My bet would be one of those fittings is leaking, and most likely the hose has dry rotted between the nipple and steel line. Snug up both flares and replace the fuel hose before you spend the money on a new part. That's not a pressurized part, the lines are 1. a return from the injector overflow, 2. a return to tank, and 3. a supply to Thermostart. The Thermostart is basically a single glow plug that heats up some fuel and sends it into the intake manifold as you start it. It's activated by holding the switch in the first spring loaded position for 10 or 15 seconds prior to moving the key to the 2nd spring position to activate starter. Never use ether with a Thermostart, my apologies if you already knew that. [/QUOTE]
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Ford 4000 thermostart info?
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