Printable Version of Topic

Click here to view this topic in its original format

914World.com _ 914World Garage _ Gearbox case opinion

Posted by: Montreal914 Apr 16 2012, 07:59 PM

Hello everyone,

I'm currently rebuilding my gearbox, thanks to Dr Evil video, but I'm facing this situation:

I have two gearbox:

One has a case that is corroded inside (differential area) see picture and I'm questioning it's usage. I believe this case was leaking but I don't have a confirmation. I've put a puddle of brake cleaner fluid and let it sit for a couple of hours last night to see if it was going through the pores but the underside stayed dry.

The other one has a main seal that started leaking a few weeks/months after my mechanics had replaced it. Looking at the input shaft's sealing surface, it's not as nice as the shaft from the corroded case one.

From what I understand, it's better to keep things together and only replace the wearing parts (bands, dogteeth, sliders).

Recommendations

Thank you,

Posted by: Dr Evil Apr 16 2012, 11:07 PM

You can swap shafts as long as you also swap the 2nd gear with it as a set. The corrosion in the box is not a problem if it is not all the way through.

Posted by: Montreal914 Apr 16 2012, 11:46 PM

OK, I understand the second gear issue (we already established the gear matching in a previous discussion). But if I swap the input shaft I don't want to mix the intermediade plate because this will have an influence on the pinion shaft position in relation with the differential, correct?

If I remove the input shaft from the intermediate plate (not sure I remember seeing that in you video) I will want to use the matching bearing races to the bearing. Basically, always match working contact surfaces.

Thanks for the help,