I have a quick question regarding ring gears. I thought I would put new bands in my truck and found the starter ring gear in very bad shape. I have the engine out but I have to pull the transmission off the back, Is that the only way to change it and how does the trans come off. Any advice would be helpful....Thanks
Do you have a service manual? There are four cap screws holding the transmission to the flange of crank. Best to mark the position of the tranny to the flange of crank shaft,remove safety wires ,and the remove those four bolts,thus freeing the tranny from block. the fly wheel ring gear is attached via the mag clamp screws. To remove them,you must chisel off the peened ends and back screws out, tapping around the ring gear will then allow its removal.
You definitely want the book for this.
Yes, but do it and recharge your magnets while its apart. Recharging is not complicated, search the forum or send me a private message. You might need to build up the thrust surface on your rear main cap. You could also get a rebabbitted rear main cap to fit your crankshaft. In that case you would need to mike your rear main crankshaft journal.
To remove the transmission, you need to turn the engine nose down and remove the bolts on the rear flange of the transmission. Buy new brass screws to match your ring gear. They are likely a slightly larger thread than original and re-using old screws is not a good idea.
As a minimum, you should buy, a reprint of the original shop manual, unless you have one. I would recommend you buy a copy of the MTFCA Engine Manual, and the MTFCA transmission manual.
It would be a good idea to remove the transmission drums and check them for cracks. They are pretty common on the reverse drum. If you do you will need to remove the clutch discs and if you do keep them in exact order and facing the same direction as you found them.
You could also have the crankshaft checked for cracks and take up the main and rod bearings. In other words, overhaul the engine. I do not believe re-bushing the transmission is required, as too loose causes no problems. Cracks can.
You can do as much as little as you like, depending on how much of a gambler you have and your available time and budget. Unless you are all thumbs , with the manuals and the forum you can learn all the skills you require.
With a little thought and ingenuity you can adapt common gear pullers to the tasks where needed.
Whenever in doubt read the instructions. This forum is a great source for information but for me nothing beats a Ford service manual and the MTFCA manuals collection.
Also replace the aluminum magnet spacers. You don't want to re-use them either as old ones may crumble if re-used.. Inspect the coil ring, an if the insulation is suspect, get a rebuilt ring from Wally. Setting up the magneto will be the "fun" part. Using a K. R. Wilson gap gauge helps in setting up the magneto. http://www.snydersantiqueauto.com/630 Gap for the magneto is 25 to 40 thousands, but the closer you stay to 25, the higher the magneto output.
Thanks for all the info hopefully i can get to it this weekend.I will let you know how it goes.
Ok I removed the 6 screws on the back of the trans and removed the back of the clutch and the discs. On the inside there is another flange with a square bolt with a cotter pin. I removed it but I still can't get the drums off. Any ideas?
You need to get a manual. The flywheel is held to the crank shaft by (4) 7/16 x 20 bolts. Look at the third main. Have the engine on a stand and nose down. If you wish to take the transmission apart the square bolt is removed and a puller is needed to remove the clutch basket, at that point you can remove the drums as a unit. Another puller is needed to remove the gear off the brake drum shaft to take the drums apart. Again you really need to get your hands on the manuals