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About DWV

  • Birthday 04/06/1948

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    Near Jackson and kanawha co. line WV

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  1. Not many of the MD or later have the original head. Look at the casting numbers and suffix. If you have a 8228D?, or 260869R? or 277098R1. Question mark after the D is for what letter follows. R is what number follows. Original SMD head would be 260869R3 or lower.
  2. Found more info after looking on the subject dated 3-10-55. Later TC 28-H shows both the 8-degree parts and 0-degree parts that came out later.
  3. Thinking IH offered a battery ignition package at one time. Looked in a TC-28-H parts book printed in 1960. It shows a battery ignition attachment for a MD. But some parts of distributor in attachment not around when MD was built. TC-28-G printed August of 52 shows no distributor for a MD.
  4. MD were only shown to come with a magneto. SMD could have a distributor. Unless the MD manifold was changed or parts in it the power to distributor would need a switch added to send power to or off. Original switch was at front of intake manifold with two studs for electric wire hookup. MD manifold only had one wire to magneto. Wire was ground and unground inside manifold. Distributors did get added to some MD tractors. Can't remember for sure at the moment if the distributors had 8-degree advance until some later ones changed to no advance. Most of SMD, 400D and 450D had the distributor standard.
  5. Depending on tire size the standard fourth gear speed in a M was around 5-1/4 MPH at 1450 RPM. High speed fourth attachment give up close to 7 mph. Some early M gears have different part numbers but were the same ratio for standard speed gears. Also a lower speed first gear attachment was offered. Since the 3 and 4 gear on countershaft is made in one piece that part also had a different part number when the 4th and 5th slider was changed to high speed. Low speed required the reverse idle, and a one piece second gear on counter shaft because first was made on the shaft. Since first was made on shaft two different countershafts were sold, one for notched pto drive and other for splined pto drive. Big tires and RPm bumped up a little will move a M fast enough on some grounds. For raking hay with ground driven one aftermarket 9 speed was nice, No need to run wide open. One time in past a aftermarket company made faster fourths for the tractors. One aftermarket gear box bolted in place of pulley gear box and give a speed between fourth and fifth. Pretty rare.
  6. More 350 around without spinouts but wouldn't call them rare. 350 head will work on a H. Don't know if they put the 350 valve cover on with pipe out top of it to air intake. If head has a 1/4 pipe pug in rear of head it's probably not a 350 head. One exception would be a replacement head for a H through 350. Head date code would give some idea. Picture of a 400 -450 date code 4-26-B on a 400 head for reference. Lot of H through 350 heads have one in the same area. 300 through 350 would have the letter Z, A, B, C or D unless a later replacement head. Original H gas manifold on engine, but engine serial number indicates it didn't start out as a gasoline.
  7. Information is in the introduction pages of a H parts book. IH intended chassis and engine serial numbers for H to match. Serial number is for a 42 model found in H serial number lists. Picture of part of introduction. Block will probably have a letter K for 1941 year cast since it went into a early 42 chassis or L for year 42. Dave
  8. FBH is the prefix for a H block and the serial number following is the engine serial number for a 1942 engine. Unless the hydraulic pump has some adapting the front engine cover was changed. If it has a dipstick it was added. C-175 block will have C-175 on side above oil filter. Other than early C-169 blocks casting number ending in R1 the rest of C-169 and C-175 casting numbers ended in R2 and were the same except when built 300 blocks had C-169. Pretty much the same engines. Maybe the biggest difference is part of the C-169 used a connecting rod like a H. Rest of C-169 and all C-175 used a rod with smaller piston pin end. Wasn't long before IH was selling the same piston and sleeve set for all. If engine had the H size piston pin end a adapter bushing was used to use the smaller piston pin. They did change the camshaft gear during C-169 production and camshaft nut to left hand threads during C-175 production but camshaft had the same specs other than thread change. Comparing a gas C-175 and C-169 some few other differences was a carburetor number ending with R1 on early C-169 and IH had a recall to change them to R2 like the rest built but all didn't get it done. Shortly after C-175 started the intake exhaust manifold was changed a little. Another notch was added to front crankshaft pulley for time check on LP engines along the way. Blocks castings ending with R1 didn't come with dipsticks.
  9. Think you were close the first time. I figured a SW6TA R&P would give 1.1 MPH over the standard R&P with the same size 13.6 tires. 14.9 would give another 0.5 to 0.6 MPH. R&P counts are in my other post and bull gears are pinion 13 teeth and bull gear 73 if you would double check me. That's the only two gear reductions in fifth speed.
  10. Won't get you to 25 MPH at half throttle but a SW6TA and W 400 and 450 use a 19 tooth main shaft and 47 tooth ring gear. You have a 19 and 50 tooth. If changing get rear main shaft bearing retainer for a W series along with shaft.
  11. Not sure about the present but a double lip like used in that axle cap was SKF-27362 because no felt were used in it. If other side was not replaced sometime it has the cap that uses a felt and single lip seal SKF-27368, Or double lip can be used in both without felt. Later thin caps look like picture but first one I noticed with part of grease hole worn off or made that way. Some have no grease hole, some a casting for grease hole but not bored, some with grease hole. If you have different on other side or tractor it will be noticeably wider top and bottom. When IH went to thin caps on a latter tractor that outer axle bearings lubed from transmission oil thin replacement caps started showing up
  12. Holes steering shaft passes threw only had a bushing in hole at back of upper bolster. Others need bored and a bushing installed unless lucy enough to find a center support casting and casting on top of steering post. Little shorter than center support but a bushing for a F-300 or 350 or a connecting rod bushing for a 350 and several other IH engines works. May have to ream the connecting rod bushing a little, depends on if it will pass over end of steering shaft. Most shafts get worn undersize where they passed through the center support. Aftermarket bushing suppliers can be found also.
  13. Located at front of steering wheel shaft where it connects to front shaft? Universal joint needs replaced and check keyway and yoke tightness. Dave
  14. If like this it's what's called a fast hitch with traction control. Advertised for the 450 tractors but was a attachment that ended up on some 400 tractors.
  15. With clutch pedal tied down, put pto in gear with transmission in neutral. If pto shaft will turn pump not the problem. But if tractor rolls free everything turns except the countershaft, constant mesh gears and input shaft if actually in neutral.
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