alpha 1 gen1 torque specs

[Pikey23]

I just replaced the impeller in my alpha1 gen1. I pulled the plastic housing (where the copper tube connects to, I think it is called the water pocket cover) off the upper unit to inspect it. I need the torque specs for these four bolts (found something that said 30-50 inch\lbs, that is a large range). I would also like the specs for the rest of the bolts that connect the lower unit to the upper. I came across something that said 38 ft/lbs for the hex bolts. but I do not know if this is correct. It is on a 3.0 mercruiser. I ordered a manual but it is not here yet. Thanks

 

[Bondo]

Re: alpha 1 gen1 torque specs

I ordered a manual but it is not here yet.

Ayuh,... The OEM Manuals are Free in the Adults Only section at the top of this forum...

 

[Pikey23]

Re: alpha 1 gen1 torque specs

wow, that is awesome. Thanks

 

[mannytho]

Re: alpha 1 gen1 torque specs

wow, that is awesome. Thanks

Where do I find These manuals

 

[dubs283]

Re: alpha 1 gen1 torque specs

water pocket bolts torque = tight, put perfect seal on the threads before installing them

upper/lower connecting nut torque = tight

 

[ziggy]

Re: alpha 1 gen1 torque specs

Where do I find These manuals

you can't any more. they were deleted. likely to copy right.

water pocket bolts torque = tight, put perfect seal on the threads before installing them

upper/lower connecting nut torque = tight

tight? how tight is that?


per s/m #6

water pocket cover bolts, 30-40 in lbs
gear housing to drive shaft housing, 35 ft. lbs

 

[dubs283]

Re: alpha 1 gen1 torque specs

tight? how tight is that?

uh, tight? - german torque (guttentight)

tight is tight, never once put a torque wrench on any of those bolts/nuts - haven't had one come apart yet

besides i don't have an open-ended 5/8" torque wrench for the two nuts on either side of the drive - and using a crows foot isn't gonna give the right torque anyway

i use my torque wrenches where they are most definitely needed:

-pinion nut
-lower driveshaft bearing retainer (when applicable)
-checking/setting rolling torque
-bearing carrier/upper retainers - yes i use the chart in the manual for applying 200 lb/ft torque
-top cap bolts

and i know all the torque specs by heart cuz i love drives

 

[paultjohnson]

Re: alpha 1 gen1 torque specs

My Clymer Manual reads for 86 thru 89 Alpha 1s Water pump Nuts 60-90 In lbs Screw 30-40 in Lbs Anti cavitation plate nuts 28 ft lbs gear housing fastners; Nuts 35 ft lbs Allen head screw 28 ft lbs if you trust Clymer FYI