Re: Backlash in the Transaxle?
I have a bad VCU I'm willing to experiment on and I'm going to try and bore through it to see how much metal there is to work with.
From the looks of things, the metal around the original bores is hardened to a greater degree than the rest of the case. I think this could create issues down the road, as the new holes wouldn't be as strong as the OEM holes. Hence, my latest idea, the flared dowel pins.
Flared dowel pins (made with 300m or harder steel) could be used to take up the OEM slack. The planetary gear assembly could then be "tapped" into the VCU. It would be a press fit and thus zero back lash to begin with. This would prevent the hammering effect from occuring and it would reduce the strain on driveline components. I suppose the only thing I'd have to worry about with this idea would be heat related metal expansion.
Here's a thought, perhaps the excessive backlash in 18 spline center differentials contributes to the "weakness" of 18 spline output shafts?
I've included some pics to help everybody know what I'm talking about.
Declan
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'91 VR4 - Modlist: DR650R turbos, Snow stage 2D alky kit, DSM SMICs, blowthrough ported LT1 MAS, Dejon Tool intakes & y-pipe, Blitz DSBC Spec R, HKS SSQV BOV, PTE 580cc injectors, Dual feed fuel system with Aeromotive FPR & filter, Hotwired Supra pump, HKS DLI, MSD Wires, Apex'i S-AFC II, MAFTranslator, Turbobob ECU, Scanmaster III, LC-1 WBO2, ESP downpipe, Vac/EGR delete, Gutted precats and test pipe, Maximal solid mounts, 300m 18 spline output shaft, Centerforce Dual Friction clutch, RPS flywheel, GC coilover conversions with helper springs, Powerslot slotted rotors, Goodridge SS brake lines, Hawk pads (front), Stillen metal matrix pads (rear)
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