406 binding problems
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Pro
Joined: Jan 2002
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From: W.V.C. Utah
406 binding problems
Ok so today I pulled the heads off the 406 and the cylinders look perfect so I pulled the pan hoping to see something binding it up. Nothing here's the prob I can get the motor to turn completly around but it hits one spot that gets really tough like it rubbing somewhere. it does it in the exact same place everytime. Once it gets past that point it's fine. so does anyone have any ideas as to where it could be rubbing.
Former Vendor
Joined: Jun 2001
Posts: 7,204
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From: St Marys PA
Originally Posted by 88421VETTE
Ok so today I pulled the heads off the 406 and the cylinders look perfect so I pulled the pan hoping to see something binding it up. Nothing here's the prob I can get the motor to turn completly around but it hits one spot that gets really tough like it rubbing somewhere. it does it in the exact same place everytime. Once it gets past that point it's fine. so does anyone have any ideas as to where it could be rubbing.
Need more information....
If its one that you putting together on a stand, what are the clearances at? Mains? Rods?
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Depending on what you are using for rods, you could easily have a rod (or rod bolt) to camshaft interference problem, and THAT can happen even with a stock cam. The cam isn't going to hit the crank.
RACE ON!!!
RACE ON!!!
Race Director
Joined: Dec 2002
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From: SCMR Rat Pack'r Charter Member..Great Bend KS
That's why I said "crank assy"....I couldn't remember if it was the throws or the rods (which are part of a "crank assy")that were the problem. Thanks for clearing that up, CFI.
Larry
code5coupe
(I'm rapidly getting to that life's stage where I've forgotten more than I ever knew.
)
Larry
code5coupe
(I'm rapidly getting to that life's stage where I've forgotten more than I ever knew.
)
Last edited by rocco16; Apr 24, 2006 at 11:28 AM.
Melting Slicks
Joined: Oct 2002
Posts: 3,193
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From: Cincinnati Oh
turn the motor over (By HAND!) until you feel it start to bind. Then get out a flashlight and look for anything that's touching. I'm assuming the oil pan is off by now?
Hopefully it isn't the cam/rods touching, otherwise you've probably marred up a lobe...
Hopefully it isn't the cam/rods touching, otherwise you've probably marred up a lobe...
