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D-17 allis chalmers not running smooth and going d |
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Posted: 28 Nov 2021 at 8:28am |
I rebuilt the engine put electronic ignition new plugs and wires. Rebuilt carburetor. Put old manifold on with new gaskets with the round metal plates on them . Tractor cranks but runs rough and at times backfires and air comes out of carburetor. Any ideas.??
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 19641 |
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Firing order is 1-2-4-3. Clockwise rotation of distributer looking down to top.
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Checked that . The wiring is correct thanks.
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Dusty MI
Orange Level Joined: 13 Sep 2009 Location: Charlotte, Mi Points: 5053 |
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Has the timing been checked?
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917 H, '48 G, '65 D-10 series III "Allis Express"
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Boss Man
Orange Level Joined: 03 Mar 2018 Location: Greenleaf, WI Points: 610 |
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First would be timing and firing order. Next would be carb adjustment
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Stan IL&TN
Orange Level Joined: 13 Sep 2009 Location: Elvis Land Points: 6730 |
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Pull one plug wire off. Do it on every cylinder. If you pull one off and no change then you know something is wrong with that one. Just because they are new don't make them good.
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1957 WD45 dad's first AC
1968 one-seventy 1956 F40 Ferguson |
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MACK
Orange Level Joined: 17 Nov 2009 Points: 7664 |
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I'm sure if you put new electronic ING. on, it needs timing checked and adjusted. MACK
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SteveM C/IL
Orange Level Access Joined: 12 Sep 2009 Location: Shelbyville IL Points: 8052 |
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Check it again...sounds like wires crossed
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Double checked wires . All good . Timing ok . Now checking valve adjustment. A little confused. On page 18 of shop manual it shows what to adjust valve tapper gap to with number 1 cylinder at TDC . And also what to adjust remaining valves to with number 4 cylinder at TDC. On the D-17 number 1 and 4 are TDC at same time??
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Got valves adjusted. Runs like a top thanks fellas. Now I have to work on clutch. When you push in clutch it doesn’t stop the tractor. I put a new plate in . You think it’s the pressure plate ??
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BrianC
Orange Level Joined: 16 Jun 2011 Location: New York Points: 1614 |
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Also do a compression test and report on the readings. If there are wacky readings, it could be valve lash.
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BrianC
Orange Level Joined: 16 Jun 2011 Location: New York Points: 1614 |
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I would still do a compression test. For our knowledge, how out of adjustment were the valves, would you say some were not even closing?
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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They were all tight . Had to loosen all up and set to the right spacing. Not sure how to do the clutch pressure test .
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BrianC
Orange Level Joined: 16 Jun 2011 Location: New York Points: 1614 |
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Glad you got it fixed, running with exhaust valve not seated can (will) lead to damage, especially under working loads. As for the clutch I don't know. Ordinary dry disk single clutches they always tell you to adjust the clutch pedal free play per the manual. Too much free play may mean you effectively cannot push in the pedal far enough to disengage the clutch, could give a dragging effect. Could you have put the disc in backwards? Why did you change it, did the old one have the same issue? Wait for the guys who know to give clutch advice. |
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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I had to put a rear seal in the engine and the plate had never been changed so I replaced it while I had it apart. I don’t see any way to adjust it . Thinking I should’ve put a new pressure plate in as well. Live and learn.
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AC720Man
Orange Level Joined: 10 Oct 2016 Location: Shenandoah, Va Points: 4709 |
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Clutch free play is adjusted at the clutch pedal. The clutch pedal should have a set amount of distance while the pedal is back until it is pushed forward as it touches the throw out bearing. That distance is in your owners manual. I do not have a D17 manual so I would have to look it up to be sure. That adjustment if it is like our D15 is adjusted by detaching the clutch rod from the clutch pedal and turning it in or out depending which direction you need to adjust the free play.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Ok thanks I will check that.
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SteveM C/IL
Orange Level Access Joined: 12 Sep 2009 Location: Shelbyville IL Points: 8052 |
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[QUOTE=CE Mississippi] Double checked wires . All good . Timing ok . Now checking valve adjustment. A little confused. On page 18 of shop manual it shows what to adjust valve tapper gap to with number 1 cylinder at TDC . And also what to adjust remaining valves to with number 4 cylinder at TDC. On the D-17 number 1 and 4 are TDC at same ]
They are both up on TOP center but not TDC and the camshaft turns half speed of crank so the valve lash is adjustable on different valves in different positions. Not confusing when you understand how it works. |
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Got it thanks
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Boss Man
Orange Level Joined: 03 Mar 2018 Location: Greenleaf, WI Points: 610 |
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First check clutch adjustment. Depending on how hard it slid back together you could've bent the disk. Or put the disk in backwards.
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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The d-17 has no adjustment other than the pedal and that’s just for leg length. Gotta split it to be sure all is correct. Thanks
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 19641 |
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The D-17 has adjustment on each pressure plate finger !! All the clutch pedal rod does is position the pedal either farther back or forward when released. I have tools made to be able to adjust finger height when the tractor is assembled. Assuming there's nothing mechanically wrong with your clutch repair, I'll bet the fingers are too far away from the throwout bearing. So they need to be moved closer. You still want as much freeplay as possible, but the clutch should release when the pedal is pushed clear down. Always test your clutch adjustment as soon as the engine is rolled up tight and two bolts installed. Place the PTO lever in gear. Clamp a 10 inch Vise-Grips on the PTO shaft at the rear of the tractor. Transmission in neutral. Hand clutch in neutral. Someone in the seat holding the clutch pedal 100% fully DOWN. You should be able to turn the PTO shaft with little effort.
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Will try that thanks.
Also I am changing the oil in the transmission. The manual calls for 6 gallons of 80w oil. Is there a substitute or should I find 80w. Thanks |
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Looks like the fingers are about an inch from the throw out bearing .
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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That’s with no pressure on clutch.
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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That’s what it was DR got it going . Thanks now to the shuttle clutch. It creeps when it’s in the neutral position. But it will work in the high and low positions.
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eryanh
Bronze Level Joined: 18 Aug 2018 Location: Windfall, IN Points: 20 |
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Use 80-90. If you ever find straight 80 then consider yourself lucky.
Edited by eryanh - 03 Dec 2021 at 3:29pm |
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1958 AC D17 Series 1 NF
1949 Farmall M NF 1938 AC B |
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eryanh
Bronze Level Joined: 18 Aug 2018 Location: Windfall, IN Points: 20 |
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Not sure if you mean the power director or if its an actual shuttle but if its PD then when the oil is cold, it will creep. Once warmed up it shouldn't do it at all. That is if the transmission is in gear.
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1958 AC D17 Series 1 NF
1949 Farmall M NF 1938 AC B |
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DrAllis
Orange Level Access Joined: 12 Sep 2009 Points: 19641 |
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Don't use 80/90 in the Power Director clutch. Use Universal hydraulic/transmission oil and even at that, until the oil temp is up to 150 degrees or more there will be some creeping in neutral. It will creep the most in LOW gear. It will creep the least in 4th gear. This is normal for an oil bathed clutch.
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CE Mississippi
Bronze Level Joined: 12 Nov 2021 Location: Mississippi Points: 33 |
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Will do thanks DR
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