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Evinrude 30 hp gear / lower unit removal, what am I doing wrong?

B

BertH

Member
Hi!

I have an Evinrude 30 hp build in 1987. I have to remove the lower unit and disassemble the whole lower unit. I removed everything like Philips screw and tilt shift/rod and then I startet to remove the propeller. This worked. Then I removed the two screws inside the lower unit, see pictures. Then I wanted to pull out the "whole thing". However this is where my problem starts. I compared it to this movie at minute 03:38. I tried to use different ways to remove it, but I am not sure how this works in my case?

I tried to pull out the shaft, but obvious this is nonsense. Then I tried to pull out it as shown in the movie, but no chance. Then I thought ok, maybe in my case I have to spin it, like a screw, because it seems there is a thread. But this does also not work. Can someone help me and tell me what to do as a next step or where my mistake is? Help is much appreciated!

Picture 1 shows the whole disassembled lower unit where I currently am. So Philips screw and tilt rod/shift removed.

Picture 2 and especially 3 show the removed screws.

Picture 4 gives a view from above on it.

Picture 5 shows with red arrows marked the points where I am working on. I tried to get this thing somehow out or at least moving. But it is stuck in?
 

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That thrust washer has to be removed from the propshaft.------The propshaft bearing housing is pulled straight out.---Then remove large snap ring.--Then remove the lower shift rod.-----Remove the shifter bits next and so on.----Then remove the reverse gear .----remove pinion gear.------Why are you doung this job / work?
 
You might find the manual on the Boatinfo website helpful esp if read in conjunction with the video
http://www.************/lib/evinrude/manuals/1971-1989johnsonevinrude.html#/

Cannot post a link ( blocked by MarineEngine) but perhaps you can construct a link from
http://www.boatinfo dot no/lib/evinrude/manuals/1971-1989johnsonevinrude.html#/

You may also find the exploded parts diagrams on this site useful

Your next step would appear to be to pull the bearing carrier which is shown in the video from 2.10 onwards using an improvised puller

Be careful not to drop any small parts!
 
Thanks for the help so far! I removed the thrust washer from the propshaft. I tried to pull out the bearing carrier, but it is completely stucked :-(
 
Well , --- it has to come out.----Why are you doing this job ?--------Or hurry to a shop as they have done this job many times.
 
I am doing this job, because I accidently removed the Philips screw and it is not possible to put it back in (I really tried it, as I wanted to avoid having to remove the propeller and having to set up the gear).

My problem turns out is the following:
Usually you can put in a throat into these two sockets and then try to pull it out. However, in my case someone else must have tried this before and unfortunately as I discovered now, the throad inside these sockets obviously was destroyed. That means if I now try to put in a throat rod to pull it out, it is not possible, because there is no grip to hold it in and you just pull out the stick with which you wanted to remove the "whole thing". Therefore I wanted to put nuts from behind, which was not easy, but I managed to do so. Check the picture so that you get what I mean, sorry for my non-native english.

I now have to pull it out.

However I am still working on a proper tool / arrangement to get it out, because obviously I cannot just pull it out with my hand, because it is stuck in quite strong. Unfortunately I do not have such a tool (minute 32:49).

8.jpg
 
Not sure what you mean ny----" having to set up the gear " ---these units are very simple with no adjusting / shimming of gears required.
 
You will have to soak it good with J Blaster (or similar), and apply butane torch heat to the gear housing while letting the Blaster soak in and run down inside between the 2 pieces. The housing will of course expand, while the bearing/prop shaft retainer remains cooler. You can tap those puller hole threads out to the next size larger as well. I have also used a rubber mallet to rap on the side of the housing while heating and using J Blaster. This unit was allowed to corrode, thereby creating your dilemma.
 
@timguy:

Thanks for this detailed answer!

Yes, I have seen this with heating with a torch, however I hoped I would be able to do it without, but ok..... One question: Sorry, but what is "J Blaster"?

Thanks for your help!
 
Right, Jupiter....thanks for "bailing me out". Thinking of Justice Brothers (JB) 80, another great product. I use one or the other.
 
Thanks for the clarification!

I really wanted to avoid using the way to heat it. I now tried to use an improvised setting and hammering on it. I am very happy, since I managed to get the bearing carrier out! I was worried that the hole thing is just stucked in due to all the corrosion..... The pictures show it.

My problem now is the following (see the overexposed picture 2):

The next step is to remove the snap ring. However, I do not have the right tool for it. I tried it using two screwdrivers and I thought I could push these two so close together to be able to get the snap ring out. But clearly no chance. I need the right pliers for it. Does someone maybe have the name for such a tool or even a link where I can order this? EDIT: Just noticed I can google for "Snap ring pliers" and these seem to be the tool I am talking about. Just wondered if there is a specific one you can recommend for this job? Especially I think it has to be quit long? Otherwise I wont reach it. Furthermore from the videos I know I will further need additional pliers to be able to remove the other parts which will come. Anyone can recommend a good tool set?

Thanks for your ongoing help!

9.jpg

10.jpg

11.jpg


12.jpg
 
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EDIT2: I think I found some good pliers.

One question: Since I am now working on the gear I wanted to replace all necessary things (so like seals and so). I have an Evinrude 30 hp built in 1987. I searched for a complete kit with all seals and rings, but I couldnt' find one /wasnt sure which one is the right one. So which seal replacement kit is the correct one for me? Which other parts should I consider to replace?

Then a second question: When putting in / replacing the seals I think I should apply some lube. Which lube/fat should I use? Is there a specific one I should order? Or can/should I put regular 2 stroke evinrude gear oil on the seals? So the same I would pump into the gearcase usually? I thought the consistency of the lube I apply to the seals / rings should be more like fat?

Thanks a lot for your help!
 
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I was able to remove the snap ring. I also removed the retainer plate behind it, the gear reverse and the shifter yoke. Picture 1 shows these items I have succesfully removed. However, now I am stuck. I cannot remove the propeller shaft, because the shift lever is attached to it. Picture 2,3 show where I am now. I don't know how to proceed, my main question: What is the next step, how can I get out the propeller shaft / deattach the shift lever? (Picture 4 shows that I do have the Philips screw removed, I first thought it keeps the shift lever fixed in, but it is removed.)

Picture 1.jpg

Picture 2.jpg

Picture 3.jpg

Picture 4.jpg

Thanks for any help!

BIG EDIT:

I got it out. I was just too gentle, a bit more force and the propeller shaft came out.

Furthermore another minor question about the gear case seal replacement:
I checked it on marineengine and this is what I have found:

****s://www.marineengine.com/newparts/part_search.php?part_num=396351
"0396351 - Gearcase Seal Kit" and
"18-2658 - Seal Kit, 396351"

However this looks like seal replacement for the impeller? Or does this also include all seals I have to replace here in the lower unit, so are these included in this kit?
 
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That 396351 is the seal kit for this lower unit .----Inspect front thrust bearing.----Any hint of damage means you should replace it.-----It is not a " robust " bearing .----Same bearing is used on 9.9 models here.
 
@racerone

Thanks for the hint! That is item 19 here in the exploration drawing, right?


expl.JPG


Another minor question:
After removing all parts inside the lower unit I can see a branding inside the lower unit. See picture:

View attachment 19673

View attachment 19674

So this does tell me that this lower unit was manufactured in 1985 and in April, (I think April is marked, right?). However according to the model number, which is "BE30BACUB". I thought the year of the outboard when it was made was 1987. Am I wrong with the 1987 or is this difference just because the lower unit was already made two years before the whole outboard was assembled and officially made?
 
If it is 19:
When removing the parts I think as far as I can see just the item #16 "#16 — 328313 — GEAR, PINION, DRIVESHAFT" fell down and I removed it. So the items 32,19,33 are still in, in the upper part of the lower unit?
 
Sorry, I think the two pictures with the year branding are not displayed properly and I cannot edit anymore for some reasons, so here they are again:

ym11.jpg

ym12.jpg
 
I said the " front " thrust bearing.----- These gearcases are the same year after year.----Your motor is a 1987 model.-----The gearcase is essentially the same from 1983 to 2005 I believe.
 
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Thanks for your prompt answer, but then I have to ask:

I am not sure, is this still inside the lower unit or did I already remove it? As far as I can see, it is still in? How does one remove it?

Here is the picture with all the items I have removed (the ring below the prop shaft fell out after I had removed all items and some moving of the lower unit, so I am not sure where it comes from):

Items.jpg

Here pictures from inside:

inside.jpg

Here from looking above into it:
inside2.jpg

And the - I think it is called shift rod - the removed shift rod:

removed.jpg

Edit:
Or let me ask this way round:

Is this the item 19:

item19.jpg

?

Then my question is, how is it removed and do I really have to remove it?
 
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The picture clearly shows 2 needle bearings above the pinion item # 29-----The item 19 is a thrust bearing with 2 washers one on either side.------Count the pieces on your bench..----Those 2 washers are not the same either !!
 
Sorry, but I cannot follow you! Item #29? According to the drawing this is somewhere located on the drive shaft / gear shaft. So not on the propeller shaft inside the gearcase, but the shaft which goes into the lower unit from above?

I gave letters to the items in the picture:

numbered.jpg

Would be great help if you could give the item numbers to these. I am lost here.
 
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