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| 1975 Mercury 40HP 402 motor |
| Author |
Message |
    
Joseph Cram
New member
Username: ladycram
Post Number: 1
Registered: 10-2009
| | Posted on Thursday, October 29, 2009 - 09:36 pm: | 
|
I am trying to remove the powerhead from the drive shaft,all bolts are removed,and the powerhead will raise up about 3/8's of an inch. I have sprayed penetrating oil thru the crack and have pried as hard as I dare. I cannot get the powerhead to separate from the driveshaft. HELP!!! |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 7045
Registered: 09-2003
| | Posted on Friday, October 30, 2009 - 07:10 am: |
|
You got a stuck power head to drive shaft joint, as you already know. Try this:
Hang the motor upside down from a (?) so it's just above the floor. Spray a bunch of penetrating oil where the stuck joint it--you might have to drill a hole or two in the housing (which you can plug with a screw). Then let it sit. Re-spray and knock on the power head with a soft hammer from time to time.
The secret is patience, and lots of penetrating oil!
Jeff
PS: If all else fails you can cut a big hole in the housing with a hole saw, stick a torch in there, and heat the end of the crank until the power head drops off. You'll then need a new housing, but there's plenty of those around. In fact, I junk at least three of them recently--no buyers. |
Joseph Cram
New member
Username: ladycram
Post Number: 2
Registered: 10-2009
| | Posted on Friday, October 30, 2009 - 10:18 pm: |
|
THANKS FOR THE HELP. IF I REMOVE THE BOLTS FROM THE LOWER UNIT AND AND TAP ON IT WOULD THAT CAUSE THE SHAFT TO COME LOOSE OR WOULD IT BRAHE SOMETHING IN THE LOWER UNIT? |
Joseph Cram
New member
Username: ladycram
Post Number: 3
Registered: 10-2009
| | Posted on Friday, October 30, 2009 - 10:22 pm: |
|
THAT SHOULD BE BREAK SOMETHING |
Fastjeff
Senior Member
Username: fastjeff
Post Number: 7048
Registered: 09-2003
| | Posted on Saturday, October 31, 2009 - 02:43 am: |
|
That's what I mean. Suspend it from above so it wants to come off--and stop with the all caps! That's considerede shouting--very rude.
Jeff |
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