gemellocattivo.com

Which means "Evil Twin". Lets see your projects where you change boring into fun or create the fun from scratch.
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PostPosted: Tue Dec 20, 2022 1:59 pm 
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TheDarkSideOfWill wrote:

Which direction does the axial thrust from the gear helix angle go?


In toward the trans for this gear. All 3 are contained in the bellhousing casing with the drop gear cover so no thrust loads will leaving that casing in the new design.


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PostPosted: Tue Dec 20, 2022 2:17 pm 
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mk e wrote:
TheDarkSideOfWill wrote:

Which direction does the axial thrust from the gear helix angle go?


In toward the trans for this gear. All 3 are contained in the bellhousing casing with the drop gear cover so no thrust loads will leaving that casing in the new design.


If the coupling can take the thrust, then the transmission input shaft bearings and case geometry are already set up to deal with that load. Is it the same direction as the shifted gear mesh or opposite?
Using the transmission's capability to take axial loads makes your design job simpler.


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PostPosted: Tue Dec 20, 2022 6:19 pm 
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I decided to alter the 308 badge a little to better match the new badge...I'm ready to drive :lol:


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PostPosted: Wed Dec 21, 2022 9:06 am 
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TheDarkSideOfWill wrote:

If the coupling can take the thrust, then the transmission input shaft bearings and case geometry are already set up to deal with that load. Is it the same direction as the shifted gear mesh or opposite?
Using the transmission's capability to take axial loads makes your design job simpler.


I slept on that and I think the answer is no, it doesn't help because my answer about which direct the helical reaction was incomplete. Under acceleration the force is toward the trans, but on decel its away from the trans. A pair of tapered roller bearings still seems the easiest i think.


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PostPosted: Wed Dec 21, 2022 9:25 am 
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Older son showed a little interest so I spent some time on little things. We got the dash panel on passenger side back in place correctly which made me notice the door. Since I got the car the passenger door has been quite stiff but I don't use that door so no real issue :lol: .....but yesterday I had a look at it after my younger son struggled with it a bit on his ride. Zero luck getting grease into the grease fittings so i hosed it down with penetrating oil and will do that a few more times before I accept reality and rebuild the hinges

The muffler looks pretty crooked...not sure if I built it that way or something has moved but that needs attention.

I really want to get the suspension bushings replaced

My data logs show no reading for rear axle speed and odd and not matching reading for front wheel speeds. This all needs to be working right to do traction control so that needs to be looked at.

Its a long list this year.


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PostPosted: Wed Dec 21, 2022 9:27 am 
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mk e wrote:
TheDarkSideOfWill wrote:

If the coupling can take the thrust, then the transmission input shaft bearings and case geometry are already set up to deal with that load. Is it the same direction as the shifted gear mesh or opposite?
Using the transmission's capability to take axial loads makes your design job simpler.


I slept on that and I think the answer is no, it doesn't help because my answer about which direct the helical reaction was incomplete. Under acceleration the force is toward the trans, but on decel its away from the trans. A pair of tapered roller bearings still seems the easiest i think.


True, the new shaft would need to be attached to the OE shaft somehow to react axial load from overrun torque.


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PostPosted: Thu Dec 22, 2022 4:00 pm 
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More very important work today. I shortened and relocated the chute handle on the snowblower so it doesn't smash into my thigh when I'm snowblower or walking past. .. and it only took 17 years for this to make the top of the list
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Then I decided I'd placed the gemellocattivo too low and corrected that as well as doing the clear coat on the 308.


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PostPosted: Sun Dec 25, 2022 2:03 pm 
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Wow, Santa got me a blue/tan 308 GTS and pedal covers!
(The drop gears were the main present)


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PostPosted: Sun Dec 25, 2022 7:05 pm 
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Merry Christmas and Happy Holidays to all.

_________________
Wade Williams
Master Ferrari Tech
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Engine Machinist
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PostPosted: Mon Dec 26, 2022 2:40 pm 
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MerlinTech wrote:
Merry Christmas and Happy Holidays to all.


Yes! to you and all


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