what grade of alloy is a omc gearcase made from

**Chaz** · 03-25-2017, 08:50 AM

https://www.mercurymarine.com/en/us/...istory/week30/

With less than .15 percent copper, A356 alloy is employed on lost-foam casting components, including blocks, heads, clamps and swivel brackets for Mercury outboards. The process creates an aluminum that is stronger but more pliable for manufacturing and machining. For the boater, the lower copper content means the engines will outlive the competition in a saltwater environment, and that means more time for fishing, cruising and playing on the water

Chaz :
Since everyone's just guessing , I'm gonna say .. somewhere in the 355 - 356 family ... since they are the most common

Did I win a Tiger roll , or maybe a pair of polished 316L chop~stix ... ???

**powerabout** · 03-25-2017, 09:51 AM

Originally Posted by Chaz

https://www.mercurymarine.com/en/us/...istory/week30/

With less than .15 percent copper, A356 alloy is employed on lost-foam casting components, including blocks, heads, clamps and swivel brackets for Mercury outboards. The process creates an aluminum that is stronger but more pliable for manufacturing and machining. For the boater, the lower copper content means the engines will outlive the competition in a saltwater environment, and that means more time for fishing, cruising and playing on the water

Did I win a Tiger roll , or maybe a pair of polished 316L chop~stix ... ???

how come by 60's saltwater evinrude is running and zero Mercs from that era?

**phillnjack** · 03-25-2017, 12:02 PM

we see a lot more corrosion from mercs than Omc on the coast with the nice salt water.
Suzuki over here were known as disprins due to them dissolving in salt water, I think the later ones are ok.
Yamaha didn't do too good neither in the salt water , especially the lower units on the older motors.
Honda seems to stand up pretty good, but then again the Honda people are very anal in their cleaning of the motors .
Chryslers almost fell apart in salt water, along with the force motors.
Volvo penta were pretty good and hardly ever see any salt corrosion on them, but again they were the Honda people of their time.

**pointer** · 03-26-2017, 09:22 AM

[/QUOTE]
Did I win a Tiger roll , or maybe a pair of polished 316L chop~stix ... ???

[/QUOTE]

Nope, just a cannoli? Did I spell that correctly? Don't ask me where you collect, all we got is maple syrup up here ...

**Krazymaan** · 03-26-2017, 11:34 AM

just weld her up

**Markus** · 03-26-2017, 12:56 PM

Originally Posted by powerabout

how come by 60's saltwater evinrude is running and zero Mercs from that era?

They were using a different alloy back then.

Mariner was introduced as a saltwater engine because of Mercury's corrosion problems.

**powerabout** · 03-26-2017, 06:38 PM

Originally Posted by Markus

They were using a different alloy back then.

Mariner was introduced as a saltwater engine because of Mercury's corrosion problems.

Australia was the launch market for those mariners, they rusted and corroded away just like a merc, even copied the steel shift shaft rubbish
The bolts in the engines were made from some crap material that I cant describe.

**Chaz** · 03-27-2017, 07:50 AM

Did I win a Tiger roll , or maybe a pair of polished 316L chop~stix ... ???

[/QUOTE]

Nope, just a cannoli? Did I spell that correctly? Don't ask me where you collect, all we got is maple syrup up here ...[/QUOTE]

Never say "just" when your speaking about cannoli's ....

Love me some Canadian bacon ... drenched in maple cee-ruppp .... marone ..

""""""""""""""""""" NEWS FLASH """"""""""""""""""""""""""""

Power , did you hear , Scuderia Ferrari just won the Australian F-1 gran prix using 60's era Mercury tower of power parts to make up their new V-12 .........

**powerabout** · 03-27-2017, 08:07 AM

Originally Posted by Chaz

Did I win a Tiger roll , or maybe a pair of polished 316L chop~stix ... ???

Nope, just a cannoli? Did I spell that correctly? Don't ask me where you collect, all we got is maple syrup up here ...[/QUOTE]

Never say "just" when your speaking about cannoli's ....

Love me some Canadian bacon ... drenched in maple cee-ruppp .... marone ..

""""""""""""""""""" NEWS FLASH """"""""""""""""""""""""""""

Power , did you hear , Scuderia Ferrari just won the Australian F-1 gran prix using 60's era Mercury tower of power parts to make up their new V-12 .........

[/QUOTE]
Well Melbourne is where all the Italians come from and Melbourne is where Merc used to assemble towers of power

**H2OPERF** · 03-27-2017, 08:11 AM

I will buy you a tiger roll next time i'm up that way, got ur 316L chop stix right here... sorry there only .040 may be abit flimsy probably have to eat one grain of rice at a time lol. Crap... we could make millions... its the new chop-stix weight loss plan. Dave

**Chaz** · 03-27-2017, 07:54 PM

Originally Posted by H2OPERF

I will buy you a tiger roll next time i'm up that way, got ur 316L chop stix right here... sorry there only .040 may be abit flimsy probably have to eat one grain of rice at a time lol. Crap... we could make millions... its the new chop-stix weight loss plan. Dave

.040 wire ...

That must be the Singapore edition ... we'll get power to teach us how to levitate a whole seaweed wrap at a time ....