bmdubya1198
Active member
- Joined
- Aug 24, 2016
- Location
- Charlotte, NC
Just picked up an M46 for my 740 Turbo, and now I'm trying to figure out where it's leaking and what to replace before putting in my car. The front seal below the input shaft is definitely leaking, but which seal is that? On the parts diagram, it only shows "input shaft seal," which I don't think exists on the actual input shaft. It seems that the bearing is just covered by a ring that's held in by the bell housing. Maybe I'm missing something, but I don't see how there is a seal there.
Then it appears to have a leak where the overdrive unit is mated to the gear box. I already ordered the front overdrive gasket, but it seems the leak is forward of that (the front side of the plate above the cross member shown in the diagram below).
I'd rather not rebuild the overdrive right now (although it probably needs it, I'm told it didn't work and the solenoid and 4th gear switch are functional), so what is my solution here to get gaskets? What's the deal with the front seals? I found the input shaft seal on FCP, but I'm confused as to whether it goes on the actual input shaft on on the lower shaft.
I'm driving myself nuts looking at this diagram and finding leaks on this grease-caked transmission. I'd rather not put this tranny in my car just for it to pour out all the fluid in a week.
M46 Diagram: http://volvopartslisle.com/assembly/56201771/Manual-Transmission
Then it appears to have a leak where the overdrive unit is mated to the gear box. I already ordered the front overdrive gasket, but it seems the leak is forward of that (the front side of the plate above the cross member shown in the diagram below).
I'd rather not rebuild the overdrive right now (although it probably needs it, I'm told it didn't work and the solenoid and 4th gear switch are functional), so what is my solution here to get gaskets? What's the deal with the front seals? I found the input shaft seal on FCP, but I'm confused as to whether it goes on the actual input shaft on on the lower shaft.
I'm driving myself nuts looking at this diagram and finding leaks on this grease-caked transmission. I'd rather not put this tranny in my car just for it to pour out all the fluid in a week.
M46 Diagram: http://volvopartslisle.com/assembly/56201771/Manual-Transmission