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1978 25hp motor mounts

Discussion Forum at MarineEngine.com » Johnson Evinrude Outboard » Archive through May 15, 2008 » 1978 25hp motor mounts « Previous Next »

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Bo Dupre
Visitor
Posted on Wednesday, April 23, 2008 - 08:44 am:   Edit Post Delete Post View Post/Check IP

i need to change the bottom part of the mount, but have never done this before can anyone help?!?!?!
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knee jerk
Visitor
Posted on Wednesday, April 23, 2008 - 09:33 am:   Edit Post Delete Post View Post/Check IP

It's hard to see your motor through the computer screen. Whats the model number?
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bo dupre
Visitor
Posted on Wednesday, April 23, 2008 - 09:39 am:   Edit Post Delete Post View Post/Check IP

sorry! 25802C
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Morten Ringvold
Senior Member
Username: haffiman37

Post Number: 2661
Registered: 04-2006


Posted on Wednesday, April 23, 2008 - 10:06 am:   Edit Post Delete Post View Post/Check IP

You might need some heat to get it apart, screws break off rater easily.
Hope pick helps.
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bo dupre
Visitor
Posted on Wednesday, April 23, 2008 - 11:31 am:   Edit Post Delete Post View Post/Check IP

thanks so much, i'll try it tonight.
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bo Dupre
Visitor
Posted on Wednesday, April 23, 2008 - 01:31 pm:   Edit Post Delete Post View Post/Check IP

Morten were did this pic come from i would like to reserch a little more.
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jwbmarine
Senior Member
Username: jwbmarine

Post Number: 1372
Registered: 11-2005
Posted on Wednesday, April 23, 2008 - 02:10 pm:   Edit Post Delete Post View Post/Check IP

evinrude.com/BRP catalogs
http://12.2.215.22/pub/default.asp?SessionId=650ecdb69f024e90a00daa6f299b5189&Lang=EN&brands=EJ
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bo dupre
Visitor
Posted on Thursday, April 24, 2008 - 09:42 am:   Edit Post Delete Post View Post/Check IP

the bolts came out easy last night it looks like all i have to change is the bottom (barrons) #58,59,60. is that as easy as it sounds????
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Morten Ringvold
Senior Member
Username: haffiman37

Post Number: 2663
Registered: 04-2006


Posted on Thursday, April 24, 2008 - 10:01 am:   Edit Post Delete Post View Post/Check IP

Lowe rubber is #21. Why change the plastic bearings for the steering shaft?
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bo dupre
Visitor
Posted on Thursday, April 24, 2008 - 10:12 am:   Edit Post Delete Post View Post/Check IP

that is were it is loose at, the rubbers on both sides of the lower part of the motor look in good shape.
i removed the 2 bolts and released #17. right on top of that were the shaft comes though the bottom of the houseing ( i think thats what it's called)that is were it is loose i didnot see any bearing at that point, i guess that's the problem??? thanks MR
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Morten Ringvold
Senior Member
Username: haffiman37

Post Number: 2664
Registered: 04-2006


Posted on Thursday, April 24, 2008 - 11:12 am:   Edit Post Delete Post View Post/Check IP

Normally #21 (lower rubber element) splits in 2 parts as vulcanization of the plates to the rubber lets go. Elements on the side #16 are never a problem.
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bo dupre
Visitor
Posted on Thursday, April 24, 2008 - 11:29 am:   Edit Post Delete Post View Post/Check IP

never thought of that, i'll check tonight.

thanks for the info i'll let you know
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Carl Bo Dupre
New member
Username: bobo5639

Post Number: 3
Registered: 04-2008
Posted on Friday, April 25, 2008 - 10:28 am:   Edit Post Delete Post View Post/Check IP

i checked and you were correct #21 was GONE rubber and both plates gone.i was going to install #58,59, and 60 before putting it back together. Is there anything i should know about that process?
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Morten Ringvold
Senior Member
Username: haffiman37

Post Number: 2668
Registered: 04-2006


Posted on Friday, April 25, 2008 - 11:09 pm:   Edit Post Delete Post View Post/Check IP

Check side elements #8 and top #29, they often suffer the same. Note that #29 have different part numbers for long and short shaft (hardness of rubber). You may use the 'long shaft' on a short, nut not the other way around.
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Carl Bo Dupre
Member
Username: bobo5639

Post Number: 4
Registered: 04-2008
Posted on Monday, April 28, 2008 - 09:16 am:   Edit Post Delete Post View Post/Check IP

how do i open that up. does #80 on downto #60 come completely off or do i feed #8 an #29 from the under neath?
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Morten Ringvold
Senior Member
Username: haffiman37

Post Number: 2674
Registered: 04-2006


Posted on Monday, April 28, 2008 - 09:43 am:   Edit Post Delete Post View Post/Check IP

Do not take apart unless broken! Wiggle the handle #80, and check that the rubber elements are still vulcanized to the plates and not broken. If broken, just take off the big nuts on the elements and 'twist' the whole unit off. A bit of puzzle, but take Your time.
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Carl Bo Dupre
Member
Username: bobo5639

Post Number: 5
Registered: 04-2008
Posted on Monday, April 28, 2008 - 11:36 am:   Edit Post Delete Post View Post/Check IP

thanks i'll check tonight, i'm trying to replace #54 but the nut #45 is not ready to give up yet. I'm haveing to chizzle it off. not an easy job!
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Morten Ringvold
Senior Member
Username: haffiman37

Post Number: 2679
Registered: 04-2006


Posted on Monday, April 28, 2008 - 10:52 pm:   Edit Post Delete Post View Post/Check IP

Sometimes it is easier to drill a hole in the nut and the 'crack' it.
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Carl Bo Dupre
Member
Username: bobo5639

Post Number: 6
Registered: 04-2008
Posted on Tuesday, May 06, 2008 - 11:32 am:   Edit Post Delete Post View Post/Check IP

thanks Morten the drill trick worked great.
how do i replace #29 without removing 80,79, and 61, or is it possible?
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Morten Ringvold
Senior Member
Username: haffiman37

Post Number: 2709
Registered: 04-2006


Posted on Tuesday, May 06, 2008 - 08:44 pm:   Edit Post Delete Post View Post/Check IP

That may only be done by Houdini!
Off nuts #28 (side elements), and nut #28 (front element)
Then You may 'lift off' the whole assy. A bit tricky with the side elements, but no big problem.
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Carl Bo Dupre
Member
Username: bobo5639

Post Number: 7
Registered: 04-2008
Posted on Wednesday, May 07, 2008 - 09:08 am:   Edit Post Delete Post View Post/Check IP

thanks i'll geve it a shot.
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Carl Bo Dupre
Member
Username: bobo5639

Post Number: 8
Registered: 04-2008
Posted on Friday, May 09, 2008 - 09:16 am:   Edit Post Delete Post View Post/Check IP

Morten, it came off real easy with #29 broke in half. i will get a parts list together now. how hard is it going to be to put that assemble back on?
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Morten Ringvold
Senior Member
Username: haffiman37

Post Number: 2717
Registered: 04-2006


Posted on Friday, May 09, 2008 - 09:06 pm:   Edit Post Delete Post View Post/Check IP

No big deal. Let the motor rest at its back, be careful with the side elements #10, You may have to bend a bit to get them into #80, but no big problem. Be careful not to over tighten nuts #28. Attach #29 to #80 before assembly, then a socket with extension to put on the nut from the front.
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Carl Bo Dupre
Member
Username: bobo5639

Post Number: 9
Registered: 04-2008
Posted on Monday, May 12, 2008 - 09:55 am:   Edit Post Delete Post View Post/Check IP

great! as soon as i can order parts i'll let you know.
once again thanks alot!!

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