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About DWV

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  • Birthday 04/06/1948

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    Near Jackson and kanawha co. line WV

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  1. If I remember correct the 366521R1 is a 4.125 step head piston. LP head should clear but never checked the new LP heads. May not be cast exact the same. Supposed to be the same. Going to be up around 9.5 to one if the step head piston. 4 pistons are step head. Fire crater like the one piston has cleared IH LP heads.
  2. They voted to go ahead with the August 26 through 29 show I heard. Maybe the fall swap and sell meet.
  3. If no extras on tractor and axle housings not leaking at transmission housing I sometimes just block up under each axle housing or under drawbar just behind the angle iron drawbar drops if a regular drawbar. Remove tires and wheels and axle cap bolts and push axles out with jack bolt and sleeve between the bull gear or other axle retaining washer. First between axles if both being removed . Make sure all balls or parts are cleaned out of the axle and trans housing. Would go ahead and remove top cover instead of working through PTO hole. Chances are you find something else wrong. Just my opinion though.
  4. Yes front cover will work, use the steel plate between it and block or slot 2 holes in the M plate. Cam gear works and was the IH replacement gear for 248 to 281 from the late fifties. Camshaft if good also would be a step up unless the 40 was replaced sometime. 450 manifold wouldn't hurt if you still use M one . 40 M ignition drive has a different bolt pattern than the 281, but if adding hydraulics that doesn't mater. Good 450 head would give you more compression but doing to much work would be a lot like rebuilding the 281.
  5. Two size journals were used in a M. Real late M used the same size as a 450. Both will work with the bearings made for the size crank used. Cranks have a cast number on one of throws. 5 numbers with suffix letters. Bid journal cranks like the 400- 450 used suffix DE. Big journal cranks in M, SM and SMTA used DD and DE suffix. DD ones used a screw on snout of crank to hold hand crank pin in. DE used a roll pin with snout not drilled or threads for a set screw. Same rear main seal used on all. Unless changed a DE suffix crank can almost always be found in a SMTA, 400 or 450.
  6. Looked it up in the IH engine manual and it says 53 foot pounds. But to be honest I have never used a torque wrench on them. With new gaskets recheck after using engine, they usually need a little more twist. If you happen to have a early hear with 3/8 studs don't use that number. Regular low grade 7/16 fine thread nut instead of the longer nut IH used on the threads will give sometimes when tightening.
  7. 50 should be close enough for grade 5 stud and fine thread nut. If grade two 50 is to much.
  8. Yes they are on location any type of mowing I do. Some seem to almost stop along side my head sometimes. Crows most times wait until I stop mowing before moving in. Hawk was around one year that would swoop down in the field and find something and wouldn't hardly move out of the tractors way unless right on it.
  9. Looking at the center housing, housing the starter bolts to. For a standard M hydraulic unit there will be 5 holes around 1.5 inch diameter. Two on each side and one on top. If it has the hydraulic unit two pipes will come out the holes on left side and one on right. Front hole on right has the control rod lever with rod going to a mounting bracket mounted to the steering post. Top hole has the fill and oil level check hole with a cap standard unit if a remote control valve added it will be different plumbing at fill hole. Pipes out the side can have a 90 degree elbow with plug or lines hooked up there. Picturing a unit, part of it below the lip will hang down below the center housing.
  10. Rocker arms are oiled from the rocker tube center where line goes in the hole in head. Tube over the rockers is for ventilation. Not used on a 400 because they just used a short pipe in the front hole tube did go to. Then the 400 valve covers had a hole in top with vent line running to air filter intake pipe. Some what of a partial positive crankcase ventilation system. Original 400 heads had no opening in back of head for pipe leading to air intake or place for the over rocker line like a M and SM head. Some replacement ones did. Some just use the 400 head with a M valve cover. Have always used the 400, 450 valve cover and a line to air intake myself.
  11. Was 6 volt positive ground when built, who knows now. If it still has a voltage regulator on it check to see if 6 or 12 volts. No regulator? probably changed to a alternator. If so probably 12 volt negative ground.
  12. Piece that goes in back of center housing that replaces the T/A seals like a T/A unit. Big seal on outside of T/A replacement housing seals the od with another seal for input shaft near same place as a T/A input shaft. Drive shaft goes from there through what is supposed to be dry T/A clutch compartment even though not used. Independent PTO drive gear and shaft has seals on the OD at front and rear and transmission drive shaft passes through it to clutch with no seal between PTO shaft and clutch shaft. If T/A clutch compartment fills with oil or or it leaks enough at trans input oil can make it to main clutch area. T/A tractor also has the clutch shaft passing through hollow PTO shaft from pressure plate with no seal.
  13. In his first post he stated no T/A in tractor. If IPTO and factory no T/A oil can cling to shaft from clutch to transmission input shaft and pass through the hollow PTO drive shaft.
  14. Thought I heard a report they may be on camera and investigation is ongoing.
  15. You split at transmission, On the no T/A models seal 11 is the same one used on T/A tractors but the transmission input shaft retainer goes in the seal instead of the T/A unit. 11 seals OD of retainer. Seal 13 keeps the oil from passing the input shaft on ID of input shaft retainer. Rear seal number 3 can also let oil into the compartment used for a t/a clutch when equipped. Was thinking the compartment should have a drain hole for oil to get out when leaking. But seal 13 or 11 could let oil get on clutch shaft and follow it forward.
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