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steelhead

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Reply with quote  #16 
Shaft seal on the M2 is a 2 part, one facing out one facing in, part # 38 pair.

If the gear lube shows water, also do the carrier O rings, the front one takes alot of heat abuse from exhaust heat and pressure.

M2 LU.png

redhead

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Reply with quote  #17 
As in the manual. Prop shaft seals (there are 2 of them) are the same. they should be placed back to back. To make it easier,  the metal round spring on the outer seal must face out at sea, the inner's seal's metal round spring must face the internals of the gearbox. 

The seals on the driveshaft are 2 different seals. They have also a different individual part number. Go to Evinrude shop on the web and look at the exploded view of the gearcase. It is self explaining. 

I have no idea why only one seal was on your prop shaft. Did you own the motor from new?
steelhead

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Reply with quote  #18 

Not exactly an E. M2 LU but close enough for DIYers and government work

Pulling E. carrier with an automotive harmonic balancer puller.  check long bolt sizes in the kit, may need to buy long puller bolts of correct size dia/length/threads from bolt shop.  Need a center force bolt with centering tip conical point head
Don't remember the kit manuf. I have, any info that came with it is long gone.  Used it on several LUs over the years.

Remove carrier bolts, clean hole threads with thread chaser or tap especially if salt water motor.
Triple Guard grease on the puller bolt threads.
Plan on having to heat hub and replace carrier O rings

Probably looking at the metal backside of the inner seal at back of carrier.

Replace the prop shaft needle bearing while in the LU, low cost and corrodes quickly from any water seal leaks.  If oil was leaking out, water go into the bearing.  Bearing takes a pounding from prop and prop hits, wear item

DIYer thread.

http://robaloboatowners.net/forums/index.php?/topic/2072-replacing-lower-unit-prop-shaft-seal/

Nordmann

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Reply with quote  #19 
There is meant to be a small space between the seals.

Using the correct installers, being the kit mentioned by Seahorse or with the carrier removed and service manual recommended installers, will space the seals correctly.

The space should be filled with triple guard grease. This is the only lubrication the outer seal gets.

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vinman

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Reply with quote  #20 
So confirmed only 1 seal was previously installed. These engines were purchased used a few years back. Been going through them to make them as perfect as possible. They had water intake from the fuel tank... (someone filled the gas tank with water). Got them cheap. 2 bad injectors and 1 bad VST pump later they start on the first turn. Run strong.

There was no water in either gear box. That being said the gear oil was a little thick so maybe it combined? Also the gear oil was leaking on the top and bottom.

That's the history..
vinman

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Reply with quote  #21 
I also found a universal seal puller that works with multiple manufacturers and lower units for $360 and it does more than just props seals. Gentleman claims he designed it after the original OMC puller.
vinman

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Reply with quote  #22 
Crap - New prop seals leaking. looks like on the outside of the seal. Going to wait for my puller/installer to come in and order 2 new ones. Hopefully I did not nip it doing it the hack way.. I will use more sealer next set.
PhilH12

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Reply with quote  #23 
NO metal drivers against the rubber seal at all!  Against Metal only, and need to be "square" with the driver against the seal when seating.

Tapping in with a hammer and screwdriver, etc. will cause grief.  [frown]

Make sure the seal bore isn't scored from seal removal or install, too.  Not exactly as careful as brain surgery, but getting close when you're playing with "sealing surfaces".

Phil

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20' Weeres fishing pontoon
90 HP E-Tec E90DPLSUM  05184332
Lake Tawakoni, TX - Catfish Capital of Texas
redhead

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Reply with quote  #24 
If you damaged the prop shaft, there is no other solution, you have to change the prop shaft. If you damaged the carrier which is aluminium and easy to damage if you used drills, you have to find a way to reseal.
vinman

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Reply with quote  #25 
I should have waited for it BUT I didn't. My seal removal tool came in and I'm gonna try and replace the seals again. Hopefully I did not mess up the prop shaft or carrier. Also I have had no joy locating the carrier puller 354060. Can Barnacle Bill order one for me. Please PM cost and ETA.
vinman

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Reply with quote  #26 
What took me 1 1/2 hrs I did in 15 minutes! Hats off to 5-star marine prop seal puller / installer. Worth every penny. I found a little scratch on the side of one of the seals outer wall. I looked down the carrier seat and indeed I nipped it. So with nothing left to loose I used a small round fine file to attempt to remove the raised sharp areas with success. Used the seal installer from 5-star marine and some generous amounts of OMC sealer and crossing my fingers. So far holding at 6 lbs and no bubbles.
vinman

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Posts: 171
Reply with quote  #27 
Just an update - went to 15-16 Lbs for 1 Hr. no leak

Vacuum @ -6 for 30 Min held

Hopefully good to go. I have to do the other one today but with this seal puller should be a breeze. Would still like to have the bearing carrier puller.
redhead

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Posts: 117
Reply with quote  #28 
If you damaged only the bearing carrier, then it should hold up.
Jkswor

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Posts: 39
Reply with quote  #29 
Is there a tool to remove bearing carrier from 2006 90 etec
I have searched everywhere but can’t find any info
PhilH12

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Reply with quote  #30 
My '07 Service Manual says this - "Remove the propeller shaft bearing housing from the gearcase using the following:

• Puller body, screw, and handle from Universal Puller Set, P/N 378103.
• Two 5/16-18 x 11 in. (279 mm) threaded rods, two large 5/16 in. I.D. flat washers, and two 5/16-18 nuts (obtain locally)."

What you're looking for is the "reach" past the prop shaft with the 11" threaded rods.  The body, screw, and handle could be most any gear/seal puller.

Phil


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Always check the Easy Stuff First!
20' Weeres fishing pontoon
90 HP E-Tec E90DPLSUM  05184332
Lake Tawakoni, TX - Catfish Capital of Texas
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