MerCruiser Alpha 1 Gen 2 Outdrive maintenance

amplay

Seaman
Joined
Sep 29, 2022
Messages
71
I have a 1998 Bayliner Rendezvous (MerCruiser Alpha 1 Gen 2). I need a new Lower Shift Cable, and plan to DYI with 2 friends. While there I plan to replace the 3 bellows, Shift Shaft seal, and Gimble bearing. Do you experts have any special precautions, and recommendations for other parts to replace. I'm pretty handy, but this is new territory; what degree of difficulty is this?
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
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Jul 23, 2011
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I have a 1998 Bayliner Rendezvous (MerCruiser Alpha 1 Gen 2). I need a new Lower Shift Cable, and plan to DYI with 2 friends. While there I plan to replace the 3 bellows, Shift Shaft seal, and Gimble bearing. Do you experts have any special precautions, and recommendations for other parts to replace. I'm pretty handy, but this is new territory; what degree of difficulty is this?
watch the videos in the stickies
 

Scott06

Admiral
Joined
Apr 20, 2014
Messages
6,432
I have a 1998 Bayliner Rendezvous (MerCruiser Alpha 1 Gen 2). I need a new Lower Shift Cable, and plan to DYI with 2 friends. While there I plan to replace the 3 bellows, Shift Shaft seal, and Gimble bearing. Do you experts have any special precautions, and recommendations for other parts to replace. I'm pretty handy, but this is new territory; what degree of difficulty is this?
Get a factory shop manual i want to say number 14 , very helpful.

i did mine last spring might be worth doing the trim limit switch and sender while in there. Need a BF slide hammer to get gimbal out but look at it first . My boat is a 2004 bellow never leaked so i have the factory greasable gimbal bearing still in there.

not sure what engine but if yiu have a V routing the shift cable around the exhaust wye is an MF. after i took the core out i ran a weedwacker wire up it then pulled the outer sleeve out. Run the new outer sleeve up the weedwacker wire other wise spend hours f ing around trying to get the new outer cable routed correctly.… i did both on this job. my dad was helping and misrouted the outer cable , get into home stretch… inner cable couldnt make the bend (incorrect) he had it in, janked it back out used the weedwacker wire , correctly routed to guide the outer cable… turned a 12 beer job into a 30 pack job…


if you have a 3.0 prob isnt an issue…

would also do the bushings on the shift swivel in bellhousing as well as seal. Pressure test the drive while off inspect u joints.

before you take bellows off inspect them . I did mine last year 2004 boat and they were just starting to show wear. yours may have been already replaced. If they used oem bellows you may be good for years to come. I inspected mine annually when drive pulled for a couple years before finally pulling trigger

use heat on bellhousing pivot pins to remove. Also likely the 10-32 screws on trim limit and sender will not come out… just drill and retap them.

took me two weekends to get it, not full weekends but enough first time i did it wrong to stretch it out. Since the original ones lasted 18 years next set will be someone elses issue …

added three things.
Exhaust bellows is i possible without the tool, or use the tube.

use power tune to slide driveshaft bellows retaining ring in. I used a 3 or 4” pvc storm water drain drate and the handle of a BFH as a pusher to slide it in , but needed two sets of hands to hold bellhousing at right angle so bellows ridge would stay in the groove of the bellhousing.

dont f around with cheap aftermarket parts use oem merc they all fit perfectly..

did i mention to stock up on beer, titos, makers or what ever floats your boat…
 
Last edited:

dlowdog9

Cadet
Joined
Nov 29, 2017
Messages
29
i have done everything you are talking about. Buy OEM, buy all the specialty tools (engine alignment rod, exhaust bellow tool, shift cable socket and orange shift cable holder). Cut the cooling hose into the bellhousing with a knife, dont pull it and break the fitting. Then use Quicksilver Power Tune on the new hose to put it back on. A thin coat on the inside of the hose and it will slide right on. Trust me, buy it now! Its tight in there and this will save you time and frustration. Make sure you have a flexible screwdriver shaft for the hose clamps on the bellows. Again, if you dont have it, buy it now, you'll need it. When you pull the shift cable through the sleeve, tie a long piece of weed wacker cable and pull it through, and tie it off on your motor. Give yourself plenty of extra cable on the drive side. This way you can keep the wacker cable tight when you try to guide the new cable/sleave through.
Take you time, have the right tools, buy the right stuff. If your trim sensors are even a bit worn, replace them while you have everything apart.
 

plush82

Recruit
Joined
May 26, 2021
Messages
2
I have a 1998 Bayliner Rendezvous (MerCruiser Alpha 1 Gen 2). I need a new Lower Shift Cable, and plan to DYI with 2 friends. While there I plan to replace the 3 bellows, Shift Shaft seal, and Gimble bearing. Do you experts have any special precautions, and recommendations for other parts to replace. I'm pretty handy, but this is new territory; what degree of difficulty is this?
Did you end up doing your bellows and or gimbal yet? I have an 03 bayliner 185 with a 3.0, I've only owned for 3 years and I've done a lot of engine and lower maintenance but nothing on the bellows or Bell housing yet. I'm guessing it's all original so probably time. Watching and reading as much as possible.
 

amplay

Seaman
Joined
Sep 29, 2022
Messages
71
I haven't done it yet, but you can find a youtube video for almost all the work.
 
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