Gary Lewis Posted May 20, 2020 Author Share Posted May 20, 2020 That's why the MEL 430s had a thermal bypass valve in the Carter mechanical fuel pump that bled off hot fuel to the tank. Wasn't aware of that, Bill. But, guys, while I have your attention, could you post pics of your plug wire routing? Why, 'cause I now have spark plugs installed! Autolite 24's, to be exact. But boy, do those heat shields make it fun. I probably don't have the shields lined up perfectly, but they are both on and the plugs went past them, eventually. The old rubber-hose trick worked and kept me from cross-threading the plugs, but access is pretty poor. Reminds me of changing the plugs on a '57 283. #7 on them was just about like #8 on Big Blue. Oh yes, I got the radiator isolators in. A little Armor-All on the stud and they popped right in. And I got the T6 ThermaShield, (T6F0.50SV) 4-ft Stick, 1/2" on order. But, I didn't seat the dizzy today. I want to fill the crankcase, install a filter and the oil cooler, and spin the oil pump to prime the engine, so there's no reason to seat the dizzy just yet. But I can still route the wires - using your pics to help. Oh, and I can't properly install the oil cooler until I have a radiator. And, probably have the AC installed as well. Plus, I shouldn't forget that the oil pressure gauges aren't connected yet. So there are still lots of things to do. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted May 20, 2020 Share Posted May 20, 2020 Wasn't aware of that, Bill. But, guys, while I have your attention, could you post pics of your plug wire routing? Why, 'cause I now have spark plugs installed! Autolite 24's, to be exact. But boy, do those heat shields make it fun. I probably don't have the shields lined up perfectly, but they are both on and the plugs went past them, eventually. The old rubber-hose trick worked and kept me from cross-threading the plugs, but access is pretty poor. Reminds me of changing the plugs on a '57 283. #7 on them was just about like #8 on Big Blue. Oh yes, I got the radiator isolators in. A little Armor-All on the stud and they popped right in. And I got the T6 ThermaShield, (T6F0.50SV) 4-ft Stick, 1/2" on order. But, I didn't seat the dizzy today. I want to fill the crankcase, install a filter and the oil cooler, and spin the oil pump to prime the engine, so there's no reason to seat the dizzy just yet. But I can still route the wires - using your pics to help. Oh, and I can't properly install the oil cooler until I have a radiator. And, probably have the AC installed as well. Plus, I shouldn't forget that the oil pressure gauges aren't connected yet. So there are still lots of things to do. You've been warned about Autolites! Ill try to grab a pic in a little bit. Anything in particular you want? Link to comment Share on other sites More sharing options...
Gary Lewis Posted May 20, 2020 Author Share Posted May 20, 2020 You've been warned about Autolites! Ill try to grab a pic in a little bit. Anything in particular you want? They are what Scotty recommended. As for the pics, I'm just looking to see how your plug wires run and are separated and supported. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted May 20, 2020 Share Posted May 20, 2020 They are what Scotty recommended. As for the pics, I'm just looking to see how your plug wires run and are separated and supported. I guess I've just had terrible luck with the stock 45's. My wires aren't exactly "supported" but you can see how they run (while flopping lazily about on top of my engine) Link to comment Share on other sites More sharing options...
Gary Lewis Posted May 20, 2020 Author Share Posted May 20, 2020 I guess I've just had terrible luck with the stock 45's. My wires aren't exactly "supported" but you can see how they run (while flopping lazily about on top of my engine) I may change to another plug later, but wanted to know the heat range he'd recommend. NGK has a chart for conversion, but it doesn't include Autolite. NGK sure doesn't think much of Autolite's numbering system: Where is Autolite? Autolite's numbering system does not have a standardized heat range identifier. The last digit in an Autolite part number represents the heat range within a plug family. For example, take the 254x plug series. Autolite has 2544, 2545 and 2546 available. 2544 is the coldest plug in that plug family, and 2546 is the hotest. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted May 20, 2020 Share Posted May 20, 2020 I may change to another plug later, but wanted to know the heat range he'd recommend. NGK has a chart for conversion, but it doesn't include Autolite. NGK sure doesn't think much of Autolite's numbering system: Where is Autolite? Autolite's numbering system does not have a standardized heat range identifier. The last digit in an Autolite part number represents the heat range within a plug family. For example, take the 254x plug series. Autolite has 2544, 2545 and 2546 available. 2544 is the coldest plug in that plug family, and 2546 is the hotest. However, according to an Autolite reference chart, Autolite 86 has the same heat range as 2244 and Autolite 303 is a hotter plug than 2974. Therefore, it is impossible to chart an Autolite heat range hierarchy, let alone a standardized comparison to other spark plug brands. NGK makes sense. They made MORE sense with the old Alpha Numeric system in my mind. I.e. BPR6ES. But either way you get thread, projection, wrench, heat, resistor, There's no way to even convey that in a three digit designation unless you combine traits. You need to cross Autolite to Motorcraft, Bosch, Nippon Denso or Champion and then find an NGK plug. Link to comment Share on other sites More sharing options...
Gary Lewis Posted May 20, 2020 Author Share Posted May 20, 2020 NGK makes sense. They made MORE sense with the old Alpha Numeric system in my mind. I.e. BPR6ES. But either way you get thread, projection, wrench, heat, resistor, There's no way to even convey that in a three digit designation unless you combine traits. You need to cross Autolite to Motorcraft, Bosch, Nippon Denso or Champion and then find an NGK plug. You are being generous. Unless these Autlites are 024's, they have just two digits. The Autolite site says a '96 F350 w/a 7.5L would have a 25 originally. As for x-ref, this site has a lot of info but I'm not sure I buy it. It says a 24 crosses to: Bosch 0242229528 Bosch 7569 Bosch 7969 Bosch H8B Bosch H8BC Bosch HR6BC Bosch HR8B Bosch HR8BC Bosch WA145T40 Bosch WA145TR40 Champion 406 Champion BL11Y Champion RBL11Y Champion RV12YC Champion RV9YC Champion V12YC Champion stk 400 Motorcraft 415 Motorcraft AF32 Motorcraft ARF22 Motorcraft ARF32 Motorcraft ARF32M Motorcraft ASF32 Motorcraft ASF32C Motorcraft ASF32CM Motorcraft SP-415 Motorcraft stk 15 NGK 1277 NGK 2623 NGK BP6FS NGK BPR6FS NGK R5674-6 NGK UR5 NGK stk 1277 NGK stk 2623 NGK stk 2771 Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted May 20, 2020 Share Posted May 20, 2020 You are being generous. Unless these Autlites are 024's, they have just two digits. The Autolite site says a '96 F350 w/a 7.5L would have a 25 originally. As for x-ref, this site has a lot of info but I'm not sure I buy it. It says a 24 crosses to: Bosch 0242229528 Bosch 7569 Bosch 7969 Bosch H8B Bosch H8BC Bosch HR6BC Bosch HR8B Bosch HR8BC Bosch WA145T40 Bosch WA145TR40 Champion 406 Champion BL11Y Champion RBL11Y Champion RV12YC Champion RV9YC Champion V12YC Champion stk 400 Motorcraft 415 Motorcraft AF32 Motorcraft ARF22 Motorcraft ARF32 Motorcraft ARF32M Motorcraft ASF32 Motorcraft ASF32C Motorcraft ASF32CM Motorcraft SP-415 Motorcraft stk 15 NGK 1277 NGK 2623 NGK BP6FS NGK BPR6FS NGK R5674-6 NGK UR5 NGK stk 1277 NGK stk 2623 NGK stk 2771 Well, I guess I meant 25's... Still, after getting loose, uncrimped insulators -twice!- Autolite is on my Do Not Bother with it list. You certainly have plenty to choose from! UR4/6630 is a stock application. NGK numbers operate cooler higher I believe. Link to comment Share on other sites More sharing options...
Gary Lewis Posted May 20, 2020 Author Share Posted May 20, 2020 Well, I guess I meant 25's... Still, after getting loose, uncrimped insulators -twice!- Autolite is on my Do Not Bother with it list. You certainly have plenty to choose from! UR4/6630 is a stock application. NGK numbers operate cooler higher I believe. These appeared to be good. But 1 of them wasn't gapped the same as the others at .042. More like .046. By itself that's enough to put me off a brand. I expect them to be consistent. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted May 20, 2020 Share Posted May 20, 2020 They are what Scotty recommended. As for the pics, I'm just looking to see how your plug wires run and are separated and supported. Link to comment Share on other sites More sharing options...
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