something is rubbing on the flexplate

Discussion in 'Technical' started by JHodges, Nov 17, 2009.

  1. JHodges

    JHodges thumper

    Joined:
    Oct 14, 2006
    Messages:
    1,902
    Likes Received:
    5
    Trophy Points:
    132
    Location:
    Dora Alabama
    Vehicle:
    1972 Maverick 351w swap, 1965 Mustang 355 glide, 1993 civic daily driver
    My maverick will sometimes make a rubbing sound that is metal to metal. It is coming from the flexplate torque converter area. The instructor agrees with me that this is the problem. I am going to put it on the lift when it is available and check the dust cover bolts, tq bolts and starter bolts to make sure they are tight and not to long causing them to rub the flexplate. Does anyone else have any ideas on what to check. I really don't want to take the tranny out for a 4th time:rofl2:
     
  2. 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
    Balance weight rubbing on engine plate.
    Torque converter drain plug (if equipped) rubbing on same...
     
  3. 70'356W

    70'356W Member

    Joined:
    Mar 23, 2008
    Messages:
    32
    Likes Received:
    0
    Trophy Points:
    40
    Location:
    Valparaiso, IN
    Vehicle:
    1970 Maverick

    x2 on balance weight rubbing on engine plate, I actually saw this yesterday on my buudys 302
     
  4. JHodges

    JHodges thumper

    Joined:
    Oct 14, 2006
    Messages:
    1,902
    Likes Received:
    5
    Trophy Points:
    132
    Location:
    Dora Alabama
    Vehicle:
    1972 Maverick 351w swap, 1965 Mustang 355 glide, 1993 civic daily driver
    It's a new flexplate so I hope it isn't that rubbing. I am hoping it is a bolt that is to long but with my luck it can't be that easy. lol
     
  5. Bryant

    Bryant forgot more than learned

    Joined:
    Aug 7, 2007
    Messages:
    6,538
    Likes Received:
    153
    Trophy Points:
    203
    Garage:
    1
    Location:
    San Diego
    Vehicle:
    71 Maverick
    i was thinking that the flex plate was cracked, but then you posted that it is new.
    check for how much your crank can move front to back in the motor. this can be why the sound isnt constant if the crank is walking foward and back.
     
  6. mean_maverick

    mean_maverick Senior Member

    Joined:
    Aug 29, 2005
    Messages:
    7,312
    Likes Received:
    11
    Trophy Points:
    153
    Location:
    Irvine, Kentucky
    Vehicle:
    '73 4dr
    check the drain plug...
     
  7. cbn410

    cbn410 Member

    Joined:
    May 5, 2006
    Messages:
    11
    Likes Received:
    0
    Trophy Points:
    0
    Location:
    florida
    Vehicle:
    comet
    drain plug on converter not lined up with the hole on the flex plate. I did this myself and it makes a lot of noise.
     
  8. JHodges

    JHodges thumper

    Joined:
    Oct 14, 2006
    Messages:
    1,902
    Likes Received:
    5
    Trophy Points:
    132
    Location:
    Dora Alabama
    Vehicle:
    1972 Maverick 351w swap, 1965 Mustang 355 glide, 1993 civic daily driver
    Is there a slot in the flexplate for the drain plug. I checked all the tq bolts and there tight. I also checked the balance weights and can't see how they rub. Sometimes it will be quiet and sometimes it gets loud. I am probaly going to pull the tranny out after thanksgiving to check everything.
     
  9. Bob Wiken

    Bob Wiken Chronologically Gifted

    Joined:
    May 10, 2007
    Messages:
    1,592
    Likes Received:
    4
    Trophy Points:
    102
    Location:
    Fayetteville, Arkansas
    Vehicle:
    1973 maverick, '87 306 H.O., roller rockers C4
    try starting it w/o the inspection plate in place. look for rub marks in the inspection plate . GL
     
  10. Bryant

    Bryant forgot more than learned

    Joined:
    Aug 7, 2007
    Messages:
    6,538
    Likes Received:
    153
    Trophy Points:
    203
    Garage:
    1
    Location:
    San Diego
    Vehicle:
    71 Maverick
    did the check the crank end play yet?
    try moving the balancer and flex plate forward and back. there should be no perciveable movement.
     
  11. JHodges

    JHodges thumper

    Joined:
    Oct 14, 2006
    Messages:
    1,902
    Likes Received:
    5
    Trophy Points:
    132
    Location:
    Dora Alabama
    Vehicle:
    1972 Maverick 351w swap, 1965 Mustang 355 glide, 1993 civic daily driver
    I just checked and the crank is not wandering. When I first cranked it you couldn't here nothing ut it started again when I opened it up a little
     
  12. Alvarez1112

    Alvarez1112 Member

    Joined:
    Aug 26, 2009
    Messages:
    14
    Likes Received:
    0
    Trophy Points:
    0
    We just pulled a 5.0 out of a Mustang yesterday and there's evidence of the flywheel rubbing on the block plate. It was pretty bad actually. It wasn't making any noise, but it was definitely hitting at some point. It was near the top of the flexplate/block plate. No way to see it there without pulling the tranny if that's where it's hitting
     

Share This Page