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Everything posted by Merle Coggins
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Understanding how the gauge operates helps to troubleshoot it. As you can see in this image, the gauge has 2 electro-magnetic coils inside. Both receive voltage from the Ignition Switch. The Constant Field coil is grounded, through the gauge mount, to the dash. This coil magnet is trying to pull the needle towards the 'E' position. The Variable Field coil is grounded though the sender in the tank. The sender is a variable resistor. The higher the fuel level the lower the resistance will be through the sender, which will create a higher amperage through the Variable Field coil. This will make this coil magnet stronger and will pull the needle towards the 'F' position. As the fuel level drops the resistance gets higher in the sender, the amperage is reduced in the Variable Field coil, and it looses strength. The Constant Field coil will then start to pull the needle back towards the 'E' position. If you have good voltage supply to the gauge, the next checks are to check the continuity of the wire going to the sender. Check resistance between the wire terminal, at the gauge, to a good chassis ground. You should get a reading between 10 and 90 Ohms, depending on fuel level. If you have an Open Circuit to ground on this wire you then need to be sure that the wire is in tact and connected to the sender. Also, a check to be sure that the sender body has continuity to ground is warranted. If you temporarily ground the GA terminal to chassis ground the needle should peg to the 'F' position. This indicates the gauge is working properly and the problem lies in the fuel sender, or the wire to it. Another failure I've seen is the gauge not properly grounding through it's mount. This will cause the gauge to be pegged to 'F' all of the time. Some of the gauge mounting screws have insulating washers. You don't want that on at least 1 of the fuel gauge screws so that it can properly ground to the gauge housing, and ultimately the cab. The insulating cup washers are usually installed near the 'hot' terminal to help prevent an inadvertent short circuit to the adjacent wire terminals.
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251 Broken Crankshaft / Noise on Rebuild
Merle Coggins replied to Herding Goats's topic in Mopar Flathead Truck Forum
Are you depressing the clutch pedal to start the engine, out of habit, (no knock) then releasing it just after it starts (knock starts)? If the noise came from the clutch replacement that’s where I’d be looking first. -
Mopar Deluxe Model 36 Heater Ducting Routing
Merle Coggins replied to jwolf's topic in Mopar Flathead Truck Forum
Defrost ducts look like this. Sorry, nothing to show scale. I never pulled them out of the cab for stand-alone pics. -
As Ken said, the sockets are easy to replace. I picked up a couple of replacement sockets from my local big box auto parts store. A little heat on the old socket melts the solder and they'll just about fall out. Clean it up and solder the new ones in place. My next challenge was finding amber bulbs in 6 volt. They are non-existent. You need amber because the lenses are clear. I ended up finding LED bulbs in amber and they've been working great for many years.
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They attach to the front cab mounts and the front of the running boards. This is the best pic I have.
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1954 dodge C1 exhaust manifold.
Merle Coggins replied to Dustin Baker's topic in Mopar Flathead Truck Forum
I agree with what Brian and Mark said. Your picture doesn't show the damage to the exhaust manifold. You are showing us the casting number on your intake manifold. -
ggdad1951 truck project montage: FEF!
Merle Coggins replied to ggdad1951's topic in Mopar Flathead Truck Forum
Is that Ed's truck? He didn't want to take it up to the cabin this year? -
Use your timing light to set the ignition timing to TDC using the markings on the crankshaft damper/pulley. With today's gas many people will advance that some. I run my truck at 5* BTDC. To be able to check the advance at 2240 RPM you either need to have marks on the damper/pulley that you can read at that advance, or use a timing light with an advance setting. The light I have has a dial on the back. As I increase the RPM I can turn the dial to keep the TDC mark in view. The dial will register how much advance you are getting. Either #1 or #6 will work for checking the ignition timing as they are both at TDC at the same time. One will be at the end of it's compression stroke and the other will be at the end of it's exhaust stroke. I've also heard guys recommend just clamping your timing light pickup to the coil wire to get a brighter light. I've tried it and that works too. It's not really brighter, but it's flashing 6 times faster so it appears brighter.
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There was a guy on the forums here many years ago that has a Pilot-House truck with a slant 6. He was in northern IL, so I went down to meet him and check out his truck. It was well done. He didn't have any info on the swap as he bought it that way. It didn't look out of place in the engine compartment. I don't recall if the firewall was notched to allow for the extra length.
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Sounds good to me. Are you going to build it for me? I don’t have the space for that type of project anymore.
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New Here - 1946 WD15 Build - and engine conundrum!
Merle Coggins replied to mevertsen's topic in Mopar Flathead Truck Forum
Nice project. Look for a casting date on the block, down on the skirt area. That’ll confirm it for you. If it has a ‘50’s casting date it couldn’t be from a ‘37, or vice verse. -
I have a 2020 F150 XLT with that same trailer back-up assist. I've never set it up. I learned how to back up a trailer a long time ago. My truck (actually a company truck) has the 3.5L Ecoboost engine. It has surprisingly good towing power, but it gets thirsty if you tow anything big. We currently only have a popup camper, but have been considering upgrading to a travel trailer some day. I just need to not get too big. I carry a fair amount of weight in the tool box, so I have to be conscious the tongue weight. I don't want to exceed my GVRW too much.
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I'm in the Appleton area, but we get up that way at least once a year. We usually do a camping week/weekend at Clear Lake Campground just east of Woodruff.
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@46Chris, where are you located up north? Maybe I'll see it cruising around next summer?
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They probably saw the shift lever on the steering column and assumed that it was an automatic trans, not knowing about "3 on the tree" shifting.
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I ended up using short pieces of line at the carb and distributor and connected the two with a piece of vacuum hose. If you do that you could purchase a short pre-made piece of brake line and but 2-3 inches off each end. Connect those ends to the vacuum advance and carb fitting, then use vacuum hose to finish the connection. No need to worry about how long to get the brake line, or worry about how, or where, to make the bends. I would also recommend testing the vacuum advance as someone else said.
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Sounds like it could be a failing throw out bearing.
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Drag link rebuild 41 WC
Merle Coggins replied to Greg W 41 Dodge WC's topic in Mopar Flathead Truck Forum
Oddly enough, that’s called a drag link socket. They’re not too expensive. It would be a worthwhile purchase if you plan to do drag link work. -
Hi, I'm new to the P15-D24 forum
Merle Coggins replied to Malu's topic in Mopar Flathead Truck Forum
Nice acquisition. Based on the short running boards this would have been a cab/chassis truck from the beginning. So it was likely a flat bed truck all along. -
Tod has a pretty complete description for removing the distributor. It is fairly easy. However, I seem to recall on the 25" engines there may be a clearance issue for removing the distributor unless #1 is at TDC. So I would add that to the top of Tod's list. 1. Crank the engine over to set crankshaft to TDC mark. 1a. Remove distributor cap. 2. If so equipped, disconnect vacuum line. 3. Remove wire from coil to side of distributor. 4. Remove screw on plate holding distributor to block. 5. Note location of rotor so you can put it back in the way you found it. 6. Pull distributor off.
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New Fuel Pump Failed Almost Immediately
Merle Coggins replied to Jocko_51_B3B's topic in Mopar Flathead Truck Forum
The ball is probably pressed in there to block a port. It's a common practice to seal off holes made from drilling out a passage. Apparently they used the wrong size ball and it didn't stay put. -
Making a replacement drag link (1953 B4-B)
Merle Coggins replied to 41/53dodges's topic in Mopar Flathead Truck Forum
DCM Classics has complete drag links with adjustable ends available for $160. I would suspect by the time you purchased all of the required pieces to build one you'd be close to that cost. For me it wouldn't be worth the extra time needed to fabricate it. I've had one of these on my truck for several years and it's been great. https://dcmclassics.com/suspension-parts/1061-s-746-drag-link-crossover-bar-48-53-w-adjustable-tie-rod-ends.html -
Windshield Gasket replacement tips
Merle Coggins replied to jsd245's topic in Mopar Flathead Truck Forum
There's a good chance that you'll still experience leaking after the new seal is installed. I had to add some urethane sealant between the seal the the pinch weld, and also between the seal and the glass to seal it all up. I still have a couple places that will seep water through if I'm caught in a heavy rain, but it's much better now than it was initially. -
Have you checked that you have voltage supplied to the coil? Maybe the 'pop' was an electric arc on an electrical connector that now won't send voltage to your ignition system.
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I agree with Los_Control that it looks like it would be from the '50's. I thought the same thing when it rolled past me to park. I also thought European of some sort. I don't believe they were ever marketed here in the US. It was right hand drive and looked to have been imported from Japan. I didn't talk with the owner, but their windshield sign stated, "Only 20,000 made for Japanese market".