Alpha 1 Gen 2 upper gear preload

[AMMO DAWG]

As part of my repower on mu 2006 Sea Ray 185 with a 4.3 I am resealing the outdrive I purchased with the correct gear ratio. I have the full Mercruiser manual for the outdrive and all is pretty straight forward coupled with the videos I found online until I get to setting the preload on the Drive Shaft Yoke bearing/gear assembly. I replaced the large oil seal in that assembly. I saw a few previously posts, however it wasn't clear on the actual process to check the preload. I haven't set bearing preload before so if someone has a minute to break it down barney style it is greatly appreciated. Do I have to have an inch pound dial type torque wrench ($$$)? I want to be sure I understand the manual correctly, after preloading the bearing I hold the outer cup and turn the nut with the torque wrench to get the reading? Since it is a used bearing I assume I'm looking for 8-Inch Lbs as specified? I am using a new tapered washer and lock nut. Sorry for the questions, just want to get this right, thanks

 

[dubs283]

Do I have to have an inch pound dial type torque wrench ($$$)?.....Since it is a used bearing I assume I'm looking for 8-Inch Lbs as specified?

yes, you need an lb/in dial torque wrench, perhaps you could borrow one or take the assy to a local reputable shop that works on mercruiser drives and have them set the rolling torque

iirc, the rolling torque spec for USED bearings is 3-7 lb/in, best to try for 5 lb/in

 

[AMMO DAWG]

yes, you need an lb/in dial torque wrench, perhaps you could borrow one or take the assy to a local reputable shop that works on mercruiser drives and have them set the rolling torque

iirc, the rolling torque spec for USED bearings is 3-7 lb/in, best to try for 5 lb/in

Thanks Dubs, been doing more reading and got the process down, now the search for a dial torque wrench. Odd enough live on the water here in NW Florida but not much in the way of outdrive repairs, lots of outboard shops.

 

[achris]

Does nobody look in the stickies anymore?

 

[AMMO DAWG]

Sorry about that, did a word search didn't think to look in the stickies, thanks, actually what I was looking for!

 

[76SeaRay]

Anybody have a inch pound torque wrench brand and model number recommendation for this adjustment?

 

[achris]

Seekonk - TSQ-30

Seekonk TSQ-30 1/4" Dr. Rigid Frame Dial Type Torque Wrench 0-30 in.lbs.

<p>The Seekonk TSQ-30 1/4" Dr. Rigid Frame Dial Type Torque Wrench 0-30 in.lbs. has become the standard by which the competition is judged. Unique durability is built into tools shaped from chrome plated high alloy steel. These tools feature a torsional bar system manufactured from a special...

www.seekonk.com

 

[AMMO DAWG]

Thanks to all for the assist, picked up a dial inch pound torque wrench, got the preload set and putting it back together!

 

[76SeaRay]

Which one did you buy? I like the looks of the Seekonk but too spendy for my budget. Might see if I can find one to rent.

 

[AMMO DAWG]

I bought a used one off ebay and and did a low tech check for calibration. Certainty open to letting you borrow it, just send me a message if our interested.

 

[Eric 3.7LX Alpha 1]

AcDelco makes a couple different ones, not sure on the accuracy of them. #ARM601-3 and ARM602-4. Looks like they read inch and ft lbs. up to a certain amount.

 

[Scott06]

I used this for the same bearing preload setting when changing rear end gears works great and isn’t a ton of money

 

[76SeaRay]

Hmmm, like the looks of the AC Delco ones but they don't go down low enough for the 5 to 7 inch lb spec. They go down to 3.7 ft lb which translates to 44.4 inch lb.

 

[Scott06]

I used this for the same bearing preload setting when changing rear end gears works great and isn’t a ton of money

Helps if i include the link
Horizontal-Scale Torque-Measuring Wrench, 1/4" Square Drive, 0 - 80 in.-lbs. and 0 - 9 NM Torque

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com