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Originally Posted by Merkey
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One thing I did spot that we may have missed, is that there is a small threaded shaft called the "Axial Support" that passes thru the secondary pump, and is secured with a nut. The end of this shaft has a small slot in the end, and in one of the manuals(which I just found) it mentions making sure that the slot is horizontal... There is only about 45deg or less movement in this shaft, and its slot, and horizontal is at its maximum clockwise position.
Whilst tightening the nut would rotate the shaft to its stop position... which would be horizontal, I am unsure where we set it, as I only just fornd that info...
Anyone know what the Axial Support does?
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Bang goes the governor theory then - though a dodgy one might explain some of the other problems your son has been experiencing (see the other posts).
Anyway I can't see the axial support in the ATSG manual (I'm on page 31 and 32 at the moment looking at the secondary pump removal and installation)...
and I can't see it on the parts diagram here =>
http://www.ganzeboom.net/images1/ganzeboom/parts/Mercedes/722.3,%20722.4.pdf
Can you post some more information on it or tell me which part number it is in the pdf file posted above?
In a worst case scenario I can take a 722.303 to bits at quite short notice to get some pictures for you guys if you need 'em. Stripping that one down is on the to do list anyway - I can just bump it up the list if you think it might help.
Quote:
Originally Posted by Merkey
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I am also concerned about a failure of the Kickdown Solenoid...
Anyone know if it fails in the open position, and what the result would be?
What I find odd, is the way this problem manifested itself... The drive was uneventful, and almost 300 miles long before he slowed down, and only then did the trans start acting up...
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To eliminate the kick down solenoid you should just have to disconnect it. It you are worried that it is sticking they seem to be pretty simple things. Just remove clean and inspect - bit of grease if you want to be 100% sure it is moving as it should.