Hubert_25-25 Posted June 8, 2020 Share Posted June 8, 2020 (edited) Maybe also an air leak at one of the banjo fittings or the vacuum tank lid. Could also be the valves in the vacuum tank are not yet fully seated. Edited June 8, 2020 by Hubert_25-25 (see edit history) Link to comment Share on other sites More sharing options...
Mark Kikta Posted June 8, 2020 Author Share Posted June 8, 2020 I'm betting on one of those little valves in the tank Link to comment Share on other sites More sharing options...
Hubert_25-25 Posted June 8, 2020 Share Posted June 8, 2020 Mark, Part way thru this thread is the vacuum tank rebuilding procedure if you have not already seen it. You could use a little fine valve grinding compound on the little valves. Do not rotate. Push like a mortar and pestil. Just a little bit, apply with a tooth pick, clean off with a qtip. You can test with a rubber hose. Hugh https://forums.aaca.org/topic/337820-receiving-1926-buick-master-six-soon/?tab=comments#comment-2027288 1 Link to comment Share on other sites More sharing options...
Brian_Heil Posted June 8, 2020 Share Posted June 8, 2020 Make sure the fuel tank cap has an clear / clean vent hole. 2 Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 8, 2020 Share Posted June 8, 2020 I used that same brand of fuel filter and had to take it out, it wasn't letting any gas through. I actually bought 2 of them, with 3 spare filter elements. The metal band on ALL of them pinched the inside of the glass bowl and wouldn't let any fuel past. Take the filter element out and see if it runs for more than 2 minutes that way, put it back and see if it shuts off after 2 minutes. Then you'll know. 2 Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 9, 2020 Share Posted June 9, 2020 3 hours ago, Ben P. said: That’s what I’m thinking too. Mine has a glass bowl sediment tank fuel filter too mounted up in a different spot. It was a (1940’s?) aftermarket piece which would have had a ceramic ‘stone’ filter element. The prior owner who installed it never used the ‘stone’. I broke the darn glass bowl (they have to be lined up EXACTLY when clamped back down) and an identical replacement (can’t find just the bowl, made in 1000’s of variations) included the ‘stone’ element. I’ve been told the element will not interfere with fuel flow to the vac-tank, but plan on doing just what Morgan said - do a 2min. test run. If it quits I’m pulling the element out for good. I'm using an old Carter now like yours, the stone doesn't interfere with the flow at all and the glass bowl catches the rust particles perfectly. There are dozens on ebay all the time, even some NOS ones, and they have the same size fittings as the one that Mark and I used first. You can get new stones and gaskets anywhere. 1 Link to comment Share on other sites More sharing options...
Hubert_25-25 Posted June 9, 2020 Share Posted June 9, 2020 (edited) I have spent a lot of time recently trying to find a fuel filter that works correctly for gravity drain applications. Several older mowers and scooters never came with gas filters. At the same time, most of the fuel filters available are around 14 to 50 microns because most everything has a fuel pump today. On the Kohler website, they only list one filter capable of passing the gasoline thru without a pump. It is 75 microns for gravity applications. Less than this and there is too much pressure drop across the element. Not suggesting one of these filters for your Buick, but I bet the filter micron you have may be too restrictive. Porus stones are in the higher micron rating which may be a better application for our low pressure systems. Hugh Edited June 9, 2020 by Hubert_25-25 (see edit history) Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 9, 2020 Share Posted June 9, 2020 That fuel filter that I had was made in India. It doesn't let anything through. Blow in the "IN" side or suck through the "OUT" side and you get nothing because the band on the filter element jams against the glass. In India, that would be OK for operating Rickshaws, but gasoline powered cars require a filter that lets gasoline in. Gasoline molecules are much smaller than 14 microns. They are like .000000000000001 microns. But when I blew air in, those molecules are even smaller. Nothing gets through. Link to comment Share on other sites More sharing options...
Oldtech Posted June 9, 2020 Share Posted June 9, 2020 Yea, that sounds like a Buick now! Thanks for the video 2 Link to comment Share on other sites More sharing options...
Mark Kikta Posted June 9, 2020 Author Share Posted June 9, 2020 I'll investigate that filter Link to comment Share on other sites More sharing options...
DonMicheletti Posted June 9, 2020 Share Posted June 9, 2020 Mark, Since you know your fuel system is clean, why not eliminate the filter entirely so that possibility is eliminated as an issue. Heck, it ran most its life without one. 2 Link to comment Share on other sites More sharing options...
raydurr Posted June 9, 2020 Share Posted June 9, 2020 (edited) Many fuel sediment bowls had a fine mesh brass screen that set up, inside the housing. Between the screen and gravity settling out water and solids, filtration should be good. Many tractor restoration parts suppliers have the screen and the sediment bowl gasket. Edited June 9, 2020 by raydurr (see edit history) 1 Link to comment Share on other sites More sharing options...
Mark Kikta Posted June 9, 2020 Author Share Posted June 9, 2020 Took a break at lunch and went outside to explore this lack of oil pressure problem. I took the gauge out and took it apart. It seems to work fine. I can blow an indication of 2-3 PSI myself. I know...I know , easy for a blow hard ! So we started the car up and ran it for 30 seconds and nothing came out of the gauge oil line this time. I know I blew a half a can of brake clean through that copper line from the gauge fitting last week when I checked out the oil pump. So I decided to cut the 3/16 oil line about 1 foot above where it comes out of the engine. I also took the filter out of the fuel bowl to see what would happen when we started the old girl, and held a rag over the cut oil line. As soon as Kathy started the car, oil starting squirting out all over the place. So we stopped it of course. Then I noticed that the fuel bowl had filled up in just that 15-20 seconds or less that the car ran. So I intend to replace that piece of the oil line and put the original gauge back in the car. I couldn't blow that removed piece of copper line clear from the engine end. After putting 120 PSI to that line, Kathy said she saw something blow out and then I was then able to blow through it. It must have had something that was blocking oil but let me squirt brake clean through it one direction. So as soon as I get the copper line installed I can work on the vacuum tank if that is still an issue. 3 Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 9, 2020 Share Posted June 9, 2020 4 hours ago, Mark Kikta said: Then I noticed that the fuel bowl had filled up in just that 15-20 seconds or less that the car ran. So as soon as I get the copper line installed I can work on the vacuum tank if that is still an issue. If the fuel filter bowl filled in 15-20 seconds, the vacuum tank is working. No other way it could have got there. 2 Link to comment Share on other sites More sharing options...
Mark Kikta Posted June 12, 2020 Author Share Posted June 12, 2020 Tonight I started the old girl and without the filter she kept running until I shut it off after 40 minutes or so. While idling about 450 rpm according my dwell meter, the dwell was about 34. I did notice a bit of a change in performance over a regular period of time. While the engine was idling and the fuel filter bowl was full It ran very smoothly. All of a sudden when you could see bubbles in the fuel filter bowl there was a drop of 50 or so rpm and idle got a bit less smooth. As the bubbles stopped in the fuel filter bowl the rpm picked up 50 or so rpm and smoothed out. This cycle repeated itself every few minutes it seemed. I wonder if it was caused by a vacuum issue in the vacuum tank? On a great note, we had great oil pressure after replacing the oil gauge line and great generator voltage the entire time. 1 Link to comment Share on other sites More sharing options...
Oldtech Posted June 12, 2020 Share Posted June 12, 2020 Your cycling that you noticed in the fuel system is normal. It is the vacuum tank switching between suck mode - which shuts off the vent, and opens the line to the tank, and drain mode, where it blocks the fuel line and opens the vent line, effectively creating a vacuum leak to the manifold, The only thing you can do is possibly adjust the carb so that it runs a little crappy in both situations. LOL. No really, this is the way those tanks work. 3 Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 12, 2020 Share Posted June 12, 2020 When the vacuum tank is on (bubbles) it uses up some of the vacuum so there is less vacuum for the carb and less gas gets in the jets. That's normal. Link to comment Share on other sites More sharing options...
Mark Kikta Posted June 12, 2020 Author Share Posted June 12, 2020 Ok thanks. I was hoping you guys would tell me if that’s normal or if I had an issue there. Link to comment Share on other sites More sharing options...
Terry Wiegand Posted June 12, 2020 Share Posted June 12, 2020 Mark, A vacuum tank will 'cycle' when it's working properly. I guess a person could look at it this way - if it was pulling fuel from the gasoline tank all of the time, there would be a big problem. The engine would not be using the fuel fast enough to keep things in balance. Terry Wiegand Doo Dah America 1 Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 12, 2020 Share Posted June 12, 2020 15 hours ago, Oldtech said: Your cycling that you noticed in the fuel system is normal. It is the vacuum tank switching between suck mode - which shuts off the vent, and opens the line to the tank, and drain mode, where it blocks the fuel line and opens the vent line, effectively creating a vacuum leak to the manifold, The only thing you can do is possibly adjust the carb so that it runs a little crappy in both situations. LOL. No really, this is the way those tanks work. Drain mode blocks the manifold too, so there is no vacuum leak then. The vacuum leak is during suck mode, when the vacuum is used to suck gas. 1 Link to comment Share on other sites More sharing options...
Oldtech Posted June 13, 2020 Share Posted June 13, 2020 You are right Morgan. It was getting late! 😊 1 Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 13, 2020 Share Posted June 13, 2020 I've been having Joe Biden moments myself lately. 1 2 Link to comment Share on other sites More sharing options...
KongaMan Posted June 14, 2020 Share Posted June 14, 2020 16 hours ago, Morgan Wright said: I've been having Joe Biden moments myself lately. Hide the women and girls. 2 Link to comment Share on other sites More sharing options...
Mark Kikta Posted June 18, 2020 Author Share Posted June 18, 2020 Tonight I worked on my clutch. While Kathy pushed on the clutch for me, I used a long screwdriver and pushed on all the plates of the clutch. All the plates were easily loosened with the screwdriver. Then I started the car in first gear and it surged forward then the same in reverse and suddenly it broke free. Now I can drive it out of the garage and back up into the garage. The clutch is working as it should. Next I’ll take it for a spin down the driveway😁 First time this car has moved on its own power in at least 60 years. Another first for me and another milestone!!!! 8 Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 18, 2020 Share Posted June 18, 2020 You are lucky. Mine was full of mouse nesting material and the plates were all rusted stuck. Link to comment Share on other sites More sharing options...
KongaMan Posted June 18, 2020 Share Posted June 18, 2020 Start the engine. Give the mice some shock and awe. Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 18, 2020 Share Posted June 18, 2020 It was the acorns I was worried about. Link to comment Share on other sites More sharing options...
Larry Schramm Posted June 20, 2020 Share Posted June 20, 2020 Mark, That is great news on the clutch. Now you can get ready to drive it like you stole it. On 6/17/2020 at 8:52 PM, Mark Kikta said: Tonight I worked on my clutch. While Kathy pushed on the clutch for me, I used a long screwdriver and pushed on all the plates of the clutch. All the plates were easily loosened with the screwdriver. Then I started the car in first gear and it surged forward then the same in reverse and suddenly it broke free. Now I can drive it out of the garage and back up into the garage. The clutch is working as it should. Next I’ll take it for a spin down the driveway😁 First time this car has moved on its own power in at least 60 years. Another first for me and another milestone!!!! 2 1 Link to comment Share on other sites More sharing options...
Mark Kikta Posted June 22, 2020 Author Share Posted June 22, 2020 Well another milestone..... as I drove the old girl for the first time in over 60 years under her own power. Not very far, but one step leads to another !! 9 Link to comment Share on other sites More sharing options...
Hubert_25-25 Posted June 22, 2020 Share Posted June 22, 2020 Mark, Great job. It sounds like it is running smoothly. Hugh Link to comment Share on other sites More sharing options...
dibarlaw Posted June 22, 2020 Share Posted June 22, 2020 Mark looks like a very happy fellow! 1 Link to comment Share on other sites More sharing options...
Terry Wiegand Posted June 22, 2020 Share Posted June 22, 2020 DANG! He sure knows how to make a guy do hard time!😁. Good for you, Mark. All those months of hard work are paying off. Terry Wiegand South Hutchinson, Kansas 1 Link to comment Share on other sites More sharing options...
dibarlaw Posted June 22, 2020 Share Posted June 22, 2020 Mark: Saturday I finally got the 1925 Master up and running. With the rebuilt oil pump I am at 15# pressure. Before it was barely at 5#. Progress at our end also. 2 Link to comment Share on other sites More sharing options...
Mark Kikta Posted June 23, 2020 Author Share Posted June 23, 2020 Wow great, seems like you have made a lot of progress over the last couple of weeks too! Terry will have that Swiss watch running soon like no Buick has ever run before😁 1 Link to comment Share on other sites More sharing options...
Brian_Heil Posted June 23, 2020 Share Posted June 23, 2020 Next thing you know you are going to need to add gas to the tank. Congratulations Buick Brother! 3 1 Link to comment Share on other sites More sharing options...
Oldtech Posted June 23, 2020 Share Posted June 23, 2020 Yea. great to see it going. Congrats 1 Link to comment Share on other sites More sharing options...
Morgan Wright Posted June 23, 2020 Share Posted June 23, 2020 Sweet ride. Now to the mud track with the ATV's 1 Link to comment Share on other sites More sharing options...
Larry Schramm Posted June 24, 2020 Share Posted June 24, 2020 Mark, That is great to see your car moving on it's own. Congrats. 1 Link to comment Share on other sites More sharing options...
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