Thread: Adaptor shaft

Balsa or pine? Don't tell me you lashed out and used iron bark

Originally Posted by Lotz-A-Landies

Hi Noel

Are you going to have a female-female adapter* on the MSA/MXA or are you still going to use the prop shaft flanges?

Diana

* Like on the MT82 MT82 Adapter Shaft

Hi Diana
To run a female sleeve brings up the problem of controlling mainshaft end float where with the two flanges this remains stock with the added bonus a simple part to replace if worn at any time


Noel

Would these need heat treating noel?
Feel like making half a dozen?😊

Originally Posted by Ancient Mariner

Hi Diana
To run a female sleeve brings up the problem of controlling mainshaft end float where with the two flanges this remains stock with the added bonus a simple part to replace if worn at any time


Noel

You obviously haven't looked at the MT82 adapter shaft for the Getrag boxes on the LT230 in the Puma Defender.

The female/female fitting splines onto the mainshaft and is machined/tightened up to give the correct mainshaft endfloat.



Now there have been problems with the lubrication of the MT82 but that has been solved by the Ashcroft modification, but could be designed out by having a wet coupling on the MSA/MXA. Ashcroft Transmissions

But I wonder if the part circled in yellow could be removed and a replacement splined for the MSA/MXA sweated in and possibly pinned as well?

Why would you need to do this over what noel has done?

Originally Posted by Vern

Why would you need to do this over what noel has done?

Because nobody will ever convince me that the standard isuzu prop-shaft flange and its mating flange can be guaranteed to be true.

I like Noel's shaft, its the MSA/MXA end with two flanges that I don't like. If they're not true you'll end up snapping the shaft at its weakest point like happened to you.

Mine snapped for a few reasons, my adapter housing was broken (so it flexed), Sheldon made the tolerances on his adapter shaft to tight to reduce backlash, and the adapter shaft didn't have play at either end so no freedom to move.
All this I agree with, even Sheldon agreed, he thinks Noels design is what he should have done.

Think I will stick with the MXA flange $220 with machining and a fair bit more spline length and can only see negs and no real pos for the Isuzu app with that set up. The one in my pic has end float controlled in both directions by spline length a grease hole from the PTO end and 2 or 3 Orings on the plain sect for a seal


Noel