Crank gear to woodruff key, there's a space

Discussion in 'Technical' started by ESampson, Oct 6, 2013.

  1. ESampson

    ESampson Member

    Joined:
    Dec 20, 2010
    Messages:
    1,453
    Likes Received:
    11
    Trophy Points:
    102
    Location:
    Nanaimo, BC
    Vehicle:
    1974 Comet GT
    Putting my motor back together and I got my new woodruff key and timing set, when I put it on it didn't fit snug over the key, only fills about half the area, this isn't correct is it? What do I need to fix it? I got exams all week so I'm not sure when I can get to the machine shop. Just seems if I put it like this ill end up spinning the crank gear for sure.
     
  2. 74LDO

    74LDO Member

    Joined:
    Jul 25, 2010
    Messages:
    184
    Likes Received:
    4
    Trophy Points:
    63
    Location:
    Ohio
    Vehicle:
    1974 Maverick LDO
    woodruff key

    I Noticed the Same Thing at Disassembly...You Are Refering to How Tall It Is/Isn't Right? Thats How They Are From The Factory and Thats How I Put Mine Together:scratchchin:
     
  3. Dave B

    Dave B I like Mavericks!

    Joined:
    Mar 9, 2002
    Messages:
    16,931
    Likes Received:
    215
    Trophy Points:
    347
    Location:
    Parts Unknown......
    Vehicle:
    3 Grabbers
    How does the key fit in the crank?
     
  4. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    Soo... your saying that the fit between the key and the slot in the gear for the key is sloppy??? If thats the case then yeah it would be bad the run it that way, it will affect the timeing by a few degrees and cause undue stress that will most likely pound out the key and cause it to fail.
     
  5. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    I type slow...If the clearance is indeed between the top of the key and top of the slot in the gear...Thats fine. Side to side play would be bad but the gear isnt going to move up and down enough to cause a problem.
     
  6. ESampson

    ESampson Member

    Joined:
    Dec 20, 2010
    Messages:
    1,453
    Likes Received:
    11
    Trophy Points:
    102
    Location:
    Nanaimo, BC
    Vehicle:
    1974 Comet GT
    Ya it fits great side to side but the up and down space seems lagre. Only fills half the space.. Looks sketchy to me.
     
  7. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    Nah...It will be fine, they allmost allways have a gap.
    I wouldnt worry about it unless you are running a crank driven power adder. Or plan to turn 7K alot.
     
    Last edited: Oct 6, 2013
  8. ESampson

    ESampson Member

    Joined:
    Dec 20, 2010
    Messages:
    1,453
    Likes Received:
    11
    Trophy Points:
    102
    Location:
    Nanaimo, BC
    Vehicle:
    1974 Comet GT
    I don't plan on hitting7k but when I'm going to the track will be 6500, so that's pretty close..putting a Jp billet double roller on it this go-round.
     
  9. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    Contact JP and see if they can hook you up with a taller key...
     
  10. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,576
    Likes Received:
    2,928
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    they sell different size...key stock...:yup:
     
  11. ESampson

    ESampson Member

    Joined:
    Dec 20, 2010
    Messages:
    1,453
    Likes Received:
    11
    Trophy Points:
    102
    Location:
    Nanaimo, BC
    Vehicle:
    1974 Comet GT
    Sent Jp a message explaining the issue and I got this back

    Hi Eric

    The standard key will be fine.

    Regards Stan



    But now my cam broke I got othe issues I need to deal with.
     
  12. Dave B

    Dave B I like Mavericks!

    Joined:
    Mar 9, 2002
    Messages:
    16,931
    Likes Received:
    215
    Trophy Points:
    347
    Location:
    Parts Unknown......
    Vehicle:
    3 Grabbers
    Man, you have more trouble than most people ever have....
     
  13. ESampson

    ESampson Member

    Joined:
    Dec 20, 2010
    Messages:
    1,453
    Likes Received:
    11
    Trophy Points:
    102
    Location:
    Nanaimo, BC
    Vehicle:
    1974 Comet GT
    Honestly when the gear drive let go and blew up/jammed up I think it put a lot of force onto the cam which weakened it to this point and it's better that it happened now rather when I put it all bak together and went to fire it.

    Trust me.. I hear about the issues.. As it is a ford and my dad drives a chevelle.
     
  14. 71gold

    71gold Frank Cooper Supporting Member

    Joined:
    Apr 9, 2002
    Messages:
    26,576
    Likes Received:
    2,928
    Trophy Points:
    978
    Garage:
    1
    Location:
    MACON,GA.
    Vehicle:
    '73 Grabber
    the cam is being driven so there would be no force when it stopped.
    maybe if the dist/oil pump locked up then there would be force...:yup:
     
    Last edited: Oct 8, 2013
  15. mercgt73

    mercgt73 Member

    Joined:
    Sep 6, 2003
    Messages:
    3,829
    Likes Received:
    354
    Trophy Points:
    223
    Location:
    Eastern Shore, Maryland
    Vehicle:
    1973 Comet GT (clone), 1974 Mustang II, 1980 Bobcat Wagon
    There may not have been a rotational force on the camshaft when the gears failed, but there could have been a shear force on the camshaft snout when the gear mesh clearances had to pass the broken teeth through.
     

Share This Page