#71
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is it more of an heating issue affecting the diff internals, or the heat degrading the oil? If its the latter, I cant personally see a problem.
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#72
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Today after an hour and a half of trying to undo the bolts that hold the ali back bone to the diff nose I gave up and reached for the grinder, big Ammer and the drift. Long storey short the out put shafts bolt on type for LSD diffs are the same as the push in units so the fab'ed diff cover fits both.
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#73
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Phil - Lefty loosy, Righty tighty
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#74
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Quote:
__________________
Click to see my build photos on Flikr http://www.flickr.com/photos/67112582@N03/ Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack. Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though). Car iva'd and passed 15/08/2014. Finished weight 572kg. |
#75
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Erm minor edit.....just put the 1.6 LSD next to the open diff, erm so how many different sizes of diff are there?
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#76
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The 1800 diff has a larger crownwheel and is physically bigger (might be a bit longer too). The 1600 and 1800 driveshafts are different, so if you fit a 1600 diff you will need 1600 driveshafts too. On MX5s, the prop must also match, but I don't know whether the prop length is the only difference and therefore not an issue on a Roadster.
Push in driveshafts will also fit bolt in diffs (at least for the 1800s, as I have this exact setup on my Torsen). |
#77
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[silly ideas]
If you could machine down the bolting surfaces 6mm you could sandwich in the mounting plate to the standard diff. Or maybe you could design a plate that can be bolted on externally using the existing bolts that hold the diff together. Need to cut it around the casting webbing. Then cut the wings off. [/silly ideas] Cheers Stot
__________________
1.6 Mazda B6 : Garrett TBO339 : 420cc WRX Injectors : FMIC : Microsquirt V3 : LC-2 Wideband : Toyota COP Build Started Jan 2013 : OTR Aug 2014 : Build Pictures |
#78
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I did consider that at one point I even offered the cover up to the mill, then I had a little think about gripping a brittle ali casting in a machine vice....
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#79
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Just re read my gillham guide, and under the section differential, it actually has the nose braced. It says, an additional length on 19mm box can be fixed between BR12 & RS3, with a 5mm packer welded between RS3. The second engine mount rubber can be used to secure the front of the diff. I have revision 3 notes, so maybe it was not in the earlier build spec. Maybe we were all that keen, we missed it. 19mm box & 5mm plate it is ! ( picture in notes is - figure 41 : front lower diff mount position). Tidy on a Friday !
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#80
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Quote:
David
__________________
Click to see my build photos on Flikr http://www.flickr.com/photos/67112582@N03/ Saturn MX5 Based Chassis, Limited Slip Diff & 2.4 Quick Rack. Build cost.... seems to be spending more on tools than car bits at the moment! (they will be handy in the future though). Car iva'd and passed 15/08/2014. Finished weight 572kg. |
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