Let's kick this can one more time.
And this is because lately my experience with Atlantic British has been poor at best, and I no longer trust their information.
1. Proven - the proper bolts/screws for the steel pan are ZF 0736 010 347.
https://aftermarket.zf.com/remoteme...pdfc-2-2-zf-6-speed-transmission-parts-en.pdf
Note that the photo on the ZF site shows the bolt/screw. There is NO washer/spacer.
1.
Question
The bolt/screw as supplied in the AB "kit" HAS a washer/spacer that decreases the "working" length of the shaft to about 19mm - as I measure it.
Total length of the shaft is 22.5mm - as I measure it.
It is highly coated and quite slippery on all surfaces.
Anyone have any concerns about this washer/spacer configuration not staying tight?
Additionally
ZF manufactures these transmissions in 2 OEM configurations, plastic OEM pan - Type A, and steel OEM pan - Type B.
Do we believe that the female thread on the transmission case is threaded to the same depth or to different depths in Type A vs Type B.
Because:
We can actually obtain OEM bolts for the steel variant from ZF.
But those bolts, per the photo on the ZF website do NOT have a washer/spacer - the length is started to be 22.5mm - but it is unclear if that includes the cap or is just the shaft.
Assuming that 22.5mm is "working" shaft length then they will go 3.5mm deeper into the transmission case.
Should we source the bolts directly from ZF, and if we did so, will they actually work or might they not be compatible with the transmission case as manufactured for our
Type A plastic pan due to the above female thread depth possibility?
2.
Correct fill port to use after the swap?
Ancient information on a Disco3 forum says that the steel pan has 1L less volume than our plastic pan.
And that using the original fill port, vs the fill port in the new steel pan, will result in a 1L overfill and will overheat the transmission.
But I have seen, and cannot locate, one detailed analysis of the internal pan volumes and that post was quite clear that the pans have equal volumes -
so there would be no issues in using the original fill port.
Yes, I have seen what AB shows on the video - but as above, I no longer trust them for detailed advice.
Thoughts?