oldbuicks55 Posted June 5, 2007 Share Posted June 5, 2007 A while back I posted about redoing the brake lines on my 1941 Buick Super. I ended up buying a pre-bent set from a place called Classic Tube. At this point, I have managed to install all but one of the lines. The last one is giving me some trouble as I am not sure exactly how it should be routed. It is the one that goes from the brake junction box in the engine compartment (where the four pipes connect) to the rear rubber hose underneath the car. I am hoping someone can provide some pictures that show how this line comes out of the brake junction box and is routed between the clutch and brake pedals. I took several pictures before I took everything apart, but the old brake lines on my car were definitely not original and dont match the new pre-bent tubes at all, so my pictures dont help much. The way the new tube is pre-bent gives me several options but I am not sure what is correct and I know I am bound to pick the wrong way. So if anyone could provide a picture or two, or steer me to a website that might have such a picture posted I would greatly appreciate it. My car is a Super but I would imagine all of the Buicks from that year used very similar brake line patterns.Thank you,Lars Link to comment Share on other sites More sharing options...
oldbuicks55 Posted June 5, 2007 Author Share Posted June 5, 2007 I have perused Matt Harwood's site--he has two pictures that are real close to what I am hoping to find (assuming the Century routing is the same as the Super). I also don't know if his car had the original lines at the time of the photos. I am hoping for something that shows the piping a little better regarding how it goes by the clutch pedal. Link to comment Share on other sites More sharing options...
Guest imported_Thriller Posted June 6, 2007 Share Posted June 6, 2007 The Super is the same wheelbase as the Series 40-B Specials, so I imagine it would be the same as mine. My car is in the shop, but I should get it next week and could take a few photos if you don't come up with something else by then. Link to comment Share on other sites More sharing options...
oldbuicks55 Posted June 13, 2007 Author Share Posted June 13, 2007 Thank you for your offer--I am slowly figuring out that there are not too many 41 Buick owners who post here. I think I figured how to run the line this weekend based on some pictures I found on the internet. If I didnt route the line 100% correct, I think it must be pretty close. My new problem is that in the bleeding process I have found that some of the connections are leaking slightly--so I need to try some different things to get better seals. Always something it seems... 1 Link to comment Share on other sites More sharing options...
Guest imported_Thriller Posted June 14, 2007 Share Posted June 14, 2007 My car came home yesterday, but I didn't think of this while I had the hood opened. I'll try to get some photos taken and posted over the next couple of days if you still want them. Link to comment Share on other sites More sharing options...
39SpecialEd Posted January 17, 2023 Share Posted January 17, 2023 Speaking of the junction block, I need one as one of the ports is striped. Anybody know where I can get one? Bob's doesn't have this. Link to comment Share on other sites More sharing options...
deac Posted January 17, 2023 Share Posted January 17, 2023 Try The Stop Shop: https://www.thestopshop.com/ 2 Link to comment Share on other sites More sharing options...
Grant Z Posted April 16, 2023 Share Posted April 16, 2023 (edited) On 6/14/2007 at 12:13 AM, oldbuicks55 said: Thank you for your offer--I am slowly figuring out that there are not too many 41 Buick owners who post here. I think I figured how to run the line this weekend based on some pictures I found on the internet. If I didnt route the line 100% correct, I think it must be pretty close. My new problem is that in the bleeding process I have found that some of the connections are leaking slightly--so I need to try some different things to get better seals. Always something it seems... I have only just come across your post regarding your brake line. I have a '41 Roadmaster 76C which I have just pulled apart for a full restoration. It seems you have solved the issue, but I may be able to help by getting that brake line and seeing how it fits if required (assuming the Roadmaster is similar of course). Let me know. I also own a 1941 Special Series-A Business Coupe which is a very good driver that I use regularly. Keep me in mind if you need anything. I make a list of 1941 owners in my iPhone with '1941 Buick' in the notes under their names so I can search on that phrase and find them immediately if I need to make contact. I don't have any of their phone numbers but I make notes on how we have made contact (Buick Forum/Instagram/Facebook etc). I'm in Australia where there are very few 1941 Buicks so this list is very important to me. May I ask your name for reference? Oops, I just realised your post was 16 years ago. Sorry Edited April 16, 2023 by Grant Z (see edit history) Link to comment Share on other sites More sharing options...
oldbuicks55 Posted April 17, 2023 Author Share Posted April 17, 2023 Grant, Thanks for the info! Even though it is 16 years later, I still have the 41 Buick. While I fixed the brake problem long ago, there are always new issues that pop up so it is good to have contacts. There seem to be more 1941 owners on the forum now then there were 16 years ago, so that is a good thing. While I check the forum once or twice a month, I dont post much. This looks to be my 14th post in sixteen years! Lars Link to comment Share on other sites More sharing options...
Shootey Posted May 29, 2023 Share Posted May 29, 2023 I need a rear rubber brake hose for my 1941 Special estate wagon. It is the same as the hose for the super and Roadmaster convertible. It is different from all other super and Roadmaster models because the frames are thicker. The original Delco listing is 111-A. Does anyone have a spare? The number for the other supers and Roadmasters is 110-A. Thanks Link to comment Share on other sites More sharing options...
kingrudy Posted May 29, 2023 Share Posted May 29, 2023 You might try reaching out to Neil Morse by way of PM. He has done quite a bit to his '41. Good Luck, Mike Link to comment Share on other sites More sharing options...
nat Posted May 29, 2023 Share Posted May 29, 2023 6 hours ago, Shootey said: It is different from all other super and Roadmaster models because the frames are thicker. You may be able to counterbore, (make the frame thinner where the line passes through it), and use a hose for the thinner frame. I don't know what there is for room. It might require a right angle drill Link to comment Share on other sites More sharing options...
Shootey Posted May 29, 2023 Share Posted May 29, 2023 I’m told the easier way to go is to widen the groove so the clip will fit. Thanks to all. Link to comment Share on other sites More sharing options...
nat Posted May 29, 2023 Share Posted May 29, 2023 https://bobsautomobilia.com/shop/brakes/rear-brake-hose-1936-41see-listing-bh-369r/ Link to comment Share on other sites More sharing options...
Jolly_John Posted June 1, 2023 Share Posted June 1, 2023 The rear brake hose shown in the Bob's link above does not fit convertible or estate wagon models, since both of these model styles have heavier frames. This hose CAN be modified by some handwork, which will enable the securing clip to slip into the retaining grooves found in the hose end fittings. John Link to comment Share on other sites More sharing options...
nat Posted June 1, 2023 Share Posted June 1, 2023 5 hours ago, Jolly_John said: This hose CAN be modified by some handwork, which will enable the securing clip to slip into the retaining grooves found in the hose end fittings. John Have the frame end of the hose chucked in a lathe and reduce the hex length by the difference in frame thickness, (or a little more). 1 Link to comment Share on other sites More sharing options...
kgreen Posted June 5, 2023 Share Posted June 5, 2023 I removed the clip from the brake line where it meets the frame and still have enough material to create a stop to lodge the hose against the frame. The clip now fits, tight, but fits. Link to comment Share on other sites More sharing options...
Shootey Posted June 6, 2023 Share Posted June 6, 2023 6 hours ago, kgreen said: removed the clip from the brake line where it meets the frame and still have enough material to create a stop to lodge the hose against the frame. The clip now fits, tight, but fits. Ken, did you concern yourself with the length of the hose? According to my Delco 1952 manual the hose for all 1940 series and the different hose for the non-convertible 1941’s both have an overall length of 9 15/32”. I assume the hose for the 1941 convertibles is similar in length to the non-convertibles but I don’t have data on that. The Bob’s Automobilia hose for all 1941’s is stated to be 10 5/8 “. My brake specialist (who has mountains of brake parts and catalogs)provided me with a hose that is just 9 1/8 inches overall. I got an nos Niehoff hose supposedly correct for the 1941 non-convertibles and it measures 9 15/32”. The hose I took off my car is 10 5/16”. I suppose too long is better than too short but I’d love to know the optimal length for my 1941 woodie. I love reading and viewing your contributions to the Buick forum. Thanks. 1 Link to comment Share on other sites More sharing options...
kgreen Posted June 6, 2023 Share Posted June 6, 2023 I see two considerations to this hose; (1) length to allow full flexure and (2) interference with the frame or axle assembly. The 1940 Super that I have since sold had an interference problem as the fitting at the trailing arm was too close to the car frame. That interference would have worn the hose and allowed brake failure. Further, the hose length was such that it had a sharp bend in the flexible section at the hard joint that seemed likely to introduce a stress fracture. The difference in hose lengths could also be important for interference if the hose circled back and could touch an adjacent moving surface. The benefit of the longer hose would be that it would allow full flexure of the rear axle assembly. I noticed two different part numbers as you did, with the convertibles having a specific part number apoart from other models. I wonder if that difference was the clip groove as you discussed above? I'll measure my hose length, I just installed it this past weekend, and calculate the likely travel of the rear axle to verify adequate hose length. Good question Shooty, I'll get back to you. Link to comment Share on other sites More sharing options...
Shootey Posted June 6, 2023 Share Posted June 6, 2023 Thanks Ken. After I wrote, I looked at the 1941 and 1950 parts books and unlike the Delco manual they specified a distinct hose for 1940 convertibles. All convertibles from 1936 to at least 1941 have unique hoses undoubtedly to accommodate the thicker frames. On the 1941’s the frame center cross member (where the hose fitting is attached) is 1/16” thicker on the 50 series and 3/32” on the 70 series. That slight difference can only affect locating the groove in the fitting for the clip. I wouldn’t think the hose length would be affected. The Estate Wagon uses the Super convertible frame. Link to comment Share on other sites More sharing options...
kgreen Posted June 7, 2023 Share Posted June 7, 2023 The distance from the torque ball pivot to the center of the rear axle is approx 6'-1". The distance from the torque ball center point to the rear brake line connection is approx 3'-1". This makes approximately a 2 to 1 ratio of movement differential. My brake hose is about 10" long, measured roughly since I didn't want to take it off. The flexible length is about 8-inches. If I took about 2-inches length off the flexible hose to account for the bend at extreme extension I have about 6-inches of available movement between the connection at the trailing arm and frame. If this point stretched 6-inches, the movement at the axle centerline based on ratio would be 12-inches. Just guessing, but I would have to jump the car to get that kind of axle extension when the car became airborne. I can bench test that by jacking the frame instead of the axle. Link to comment Share on other sites More sharing options...
kgreen Posted June 7, 2023 Share Posted June 7, 2023 BTW, I got all my brake parts from Craig at Mobile Parts. I think he has the parts numbers memorized for nearly 50 years of cars. 516 - 485 - 1935 Link to comment Share on other sites More sharing options...
Shootey Posted June 7, 2023 Share Posted June 7, 2023 Thanks for all your help. I’m thinking the 9 15/32” length is right for me. I’ll call Craig and see what he suggests. Link to comment Share on other sites More sharing options...
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