Mercruiser mercury upper unit FULL rebuild - EVERYTHING

Deep dive into new Yoke shaft design with 3rd machine cut

If interested in purchasing these products, visit our Amazon Affiliate links below, I earn from qualifying purchases.

1. GLM oil seal kit (87500)

2. Gasket compound sealant (1525607)

3. Old seal punch tool (89-101-19)



4. Water pocket cover

5. Loctite 680

6. Spanner wrench

7. Inch pound torque wrench

Thanks!

[DIYwithMichaelBorders]

Deep dive into new Yoke shaft design with 3rd machine cut



If interested in purchasing these products, visit our Amazon Affiliate links below, I earn from qualifying purchases.

1. GLM oil seal kit (87500)


2. Gasket compound sealant (1525607)


3. Old seal punch tool (89-101-19)



4. Water pocket cover


5. Loctite 680


6. Spanner wrench


7. Inch pound torque wrench


Thanks!

[roadking]

I cannot thank you enough for all these videos. I have watched these over and over. Currently rebuilding a 1988 Alpha One, Gen 1 myself. Never had one before only outboards. I will say you make it look easy! Your videos go way faster than my actual work! Thank you for your time, trouble and efforts and attention to details.

[bradleygarst]

do you happen to have a full parts list or a kit number? My upper gears are totally eaten and I will need to do a complete rebuild.

[RCRoss]

The quality and attention to detail is excellent. Keep 'em coming. Thank you.

[AchikSarih]

Thank you, my brother, for this distinguished work. I salute you, my brother❤❤❤❤❤

[LadyKSailing]

Did you seriously protect your vice from the screw driver with a paper towel?

[fiveowaf]

Thanks for the video, I had one question, how do you know when the retainer ring nut is tightened correctly, is it just a case of tightening until it feels tight at the end of it's travel? I've seen some discussion of that nut being torqued down.

[andreaceniccola]

Hello, i was wondering why you didn't do all the shimming procedure with shimming tools. I'm going to change the 2 roller bearings and i need to know more about.

[fishonnelson]

I'm only 10min in and you are doing a GREAT JOB!! 👍

[davemasson]

Putting oil on the seal when installing is a far better idea than water.

[Arcturian]

Is it possible to press that upper carrier bushing on the vertical shaft, at home?

[garymilner]

Mike could you please give the part no. for the preload washer that you do not use again on the upper unit gear drive? thanks so much,

[sean]

hey @DIYwithMichaelBorders should there be play in and out. Like I can push the driveshaft against the gears and pull it out about 1/4 in when I turn the driveshaft and u-joints. I just took the outdrive off my boat because I was looking to see where I had a gear oil leak. There was gear oil in my bellow.

[brianpettine]

Can you do a series of videos like this for the gen 1 lower unit?
This was amazing. Thanks for posting.

[andrewswan]

Question, is the upper seal replacement the same on a gen 2 bar the melted water pipe housing. in which I don't have on the gen ??

[TheCommo]

Good video but I am confused on something. You say the pre-load is supposed to be 6-8 inch-lbs. my Mercruiser manual (18-03200) on section 10-18 states to "tighten the locking nut to a torque value of 85 ft-lbs." Which one is it? 6-8 inch-lbs or 85 ft-lbs? There's a huge difference between those 2 values for setting a pre-load. Also, your micrometer is being measured in nM, not inch lbs. I'm hoping you drive doesn't fail due to improper torque settings.

[jonrottenny]

I thought the old style bearing was not rolling torque and " normal" torque to 70 ft/lb...you mention the old style is 5/6 inch pounds? What am I missing?

[leekirby]

How much cost labor and the parts to rebuild em?

[AngelPenaranda]

Can you fix the link on Amazon please I need to get the tools

[tikitime]

My alpha one gen 2 drive does not look like this inside - there are no bolts holding the water tube assembly...
is drive that you are working on a Bravo or an Alpha 1 Gen 1 by any chance? thanks