Gearbox Modification.

[gidge348]

Just got some new shiny bits in the mail.

My reverse direction Ring & Pinion.

[wolfdragon]

where'd you order the R&P's from?

[gidge348]

Oct 30, 2013 18:40:00 GMT -5 wolfdragon said:

where'd you order the R&P's from?

Winters Performance www.wintersperformance.com/contact.htm

Part No 6812R this will only fit a winters 8 3/8 (V8) rear end.

[gidge348]

Got the welded gearbox back yesterday and looks good.





It had a paint/sealant inside that was a bugga to move even with the sand blaster. After it was done I though I had better reseal it in case there was some porosity in the welds.

Looked up on the PPG website and found what I thought was perfect Epoxy S1193 Listed a GE product for sealing the inside of Gas Turbine Gearboxes..... Perfect. Then looked at the price... 3 months lead time and $195 per gallon minimum 4 gallons..... Naaaahhh ....just got some plain old Red Glyptol 1201 still $52 for 500mls, but should do the job.

[Johansson]

Nice work! Welding old cast aluminum isn´t always very easy, oil in the pores and strange alloys makes life interesting for a welder...

[ozbooster]

Your welder has done a good job of that,

i have both an inverter and transformer tig,found the transformer makes a much better job of crappy materials

[racket]

Hi Ian

Looks like a "bought one"

Yeh , nice welding , that could have gone terribly wrong , the guy you got to do the job certainly knew his trade .

I bet its a relief to have it done :-)

On to the next part

Cheers
John

[gidge348]

The saga episode 9


Just put all the parts together to trial fit things.



This is the what the final layout will look like.




The manufactured bearing & seal holder attached to the gearbox one side and the torque tube uni joint bell the other.




Factory engine mounts on the lower part of the gearbox and standard mount to the gas generator on the left.





The mating surfaces needed a little bit dressing with a die grinder at the welds but otherwise fine. There is no gasket here just come type of sealant on the faces, will probably just use a plain black silicon here.





Rear view from the quick change to the torque tube, uni joint bell and then the gearbox.

All seems to fit fine.

[racket]

Hi Ian

Thats looking like the drive train drawing :-)

Tick that off the to do list.

Cheers
John

[gidge348]

Just got the shaft back from my friends shop


Swapped machining for beer..... fair deal I thought.




Mating surface with the uni joint




Connected to the uni joint.

Will be taking it down to get the splines cut later today probably take about a week to finish.

[racket]

Hi Ian

LOL.......A slab of beer has a flexible "exchange rate" at times :-)

You're really getting into this build now .

Cheers
John

[gidge348]

LOL.... Beer can be a handy bribe at times


Still working on the gearbox, have given it all a coat of paint to make it look nice & I will be cleaning and painting the outside of the gas generator while I wait for the splining to be finished.

Had a bit of a "Oh Bugger" moment when I dropped the parts to be splined. I forgot that the when doing internal splining they need an undercut to clear the chips as the spline is cut, this would be at a really inconvenient place....



I think we have it sorted though with some clever machining of a hemisphere rather than a square undercut.




More later

Cheers
Ian...........

[racket]

Hi Ian

Heh heh , "theres always a way around it" :-)

Cheers
John

[gidge348]

Not much to report at the moment the gear and shaft are still waiting for some tooling to comple the undercut.

In the meantime I have been stripping down the gas generator to clean, paint & fix a few oil leaks.



and painted the ancillaries.



and have 3 tables of with 136 different parts and 70 photographs.



Just finishing the painting today and hope I can get all the parts back where they came from

[racket]

Hi Ian

Love that shiny paint job :-)

LOL...........I'm always relieved after putting an engine together and not having any washers left over

Cheers
John