MATT47025 Posted November 23, 2015 Report Posted November 23, 2015 It's been a while since i posted anything but have a quick question: My oil line going to my oil pressure gauge is showing its age. Not sure i want to trust it anymore and was wondering where some of you have bought your replacement? I've searched the forums and also looked online at andy's and roberts. Any suggestions? Quote
Young Ed Posted November 23, 2015 Report Posted November 23, 2015 Are you talking the metal line or the flex line? Quote
Merle Coggins Posted November 23, 2015 Report Posted November 23, 2015 Pilot House trucks don't use a flex line. It's just a simple steel line that can be replicated with off the shelf brake line. Quote
Desotodav Posted November 23, 2015 Report Posted November 23, 2015 I found that most of my (9) trucks have been fitted with a flex line... but we might have done things differently here in Oz!... and my trucks are all a later model than Matt's. I recall discussing this topic a while back, but I couldn't find the thread. I did find the oil gauge flex line listed in my Canadian 40-47 truck manual and it shows the 'flexible line' part # as 655498. Quote
Reg Evans Posted November 23, 2015 Report Posted November 23, 2015 I have taken 2 of mine into the local Napa store and they made up new ones in the back room on the spot. 2 Quote
MATT47025 Posted November 24, 2015 Author Report Posted November 24, 2015 thanks guys, my line is metal and really small diameter. Its had some sort of repair that looks shady lol at some point and time. Quote
Dodgeb4ya Posted November 24, 2015 Report Posted November 24, 2015 (edited) 3/16" brake line is what is used. The nut at the gauge end is unique to the gauge so it must be re-used with a new modern common shaped crush ferrule. A flex hose can be used too if wanted . Shown is the special thread gauge nut off a 1950 Chrysler 34" flex hose with 3/16" brass line. Typical of the gauge nut used on all early Mopar cars and trucks. Originally the ferrule and nut were soldered together from the factory and slid over the 3/16" line, then tightened to the oil gauge probably done this way to speed production. A modern ferrule will work fine with the nut. Edited November 24, 2015 by Dodgeb4ya Quote
Young Ed Posted November 24, 2015 Report Posted November 24, 2015 3/16" brake line is what is used. The nut at the gauge end is unique to the gauge so it must be re-used with a new modern common shaped crush ferrule. A flex hose can be used too if wanted . Shown is the special thread gauge nut off a 1950 Chrysler 34" flex hose with 3/16" brass line. Typical of the gauge nut used on all early Mopar cars and trucks. Originally the ferrule and nut were soldered together from the factory and slid over the 3/16" line, then tightened to the oil gauge probably done this way to speed production. A modern ferrule will work fine with the nut. I found a special gas line fitting at the hardware store that replaced both pieces. Came as 1 piece and when installed the ferrule clamps down and the nut comes off. Quote
Jerry Roberts Posted November 24, 2015 Report Posted November 24, 2015 3/16" brake line is what is used. The nut at the gauge end is unique to the gauge so it must be re-used with a new modern common shaped crush ferrule. A flex hose can be used too if wanted . Shown is the special thread gauge nut off a 1950 Chrysler 34" flex hose with 3/16" brass line. Typical of the gauge nut used on all early Mopar cars and trucks. Originally the ferrule and nut were soldered together from the factory and slid over the 3/16" line, then tightened to the oil gauge probably done this way to speed production. A modern ferrule will work fine with the nut. On the oil gauge ferrule , those that I have seen will only take the special ferrule shown in the above post . A modern ferrule would not fit . Has anyone else used a modern ferrule ? Quote
Young Ed Posted November 24, 2015 Report Posted November 24, 2015 (edited) On the oil gauge ferrule , those that I have seen will only take the special ferrule shown in the above post . A modern ferrule would not fit . Has anyone else used a modern ferrule ? I believe GGdad51 from the truck side is using the modern ferrule/nut combo that I mentioned. I believe this is what it is. http://www.supplyhouse.com/Jones-Stephens-C74-158LF-1-4-Lead-Free-OD-Brass-Pilot-Line-Breakaway-Nut Edited November 24, 2015 by Young Ed Quote
Jerry Roberts Posted November 24, 2015 Report Posted November 24, 2015 OK , When I think of as a modern ferrule , i think of the common hardware store compression ferrule that is tapered evenly on both ends . With both sides the same shape . Quote
martybose Posted November 24, 2015 Report Posted November 24, 2015 I replaced the flex part of the oil pressure line with a premade AN-2 brake hose with a 90 degree turn at the bottom. The block fitting was easy, the trick part was finding the adapter from the AN hose to the hardline from the gauge, but I found one. Hasn't leaked a drop since then. Marty Quote
Dodgeb4ya Posted November 24, 2015 Report Posted November 24, 2015 Yep... That's all you need... Quote
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