B2 piston question - PeachParts Mercedes-Benz Forum

mdisav · #1 03-25-2006, 02:27 PM

Is it possible to change out the B2 piston without draining the fluid. I know some fluid will come out when the piston is removed. The reason I ask is that the fluid and filter were just changed recently. It is not that big a deal but I thought I would ask in case it is possible. I do know if the dogbone falls into the pan I will be fishing it out.

VegiBenz · #2 03-25-2006, 04:33 PM

Yes, it is possible. The only drawback is if the little dogbone falls in after it goes through the hole, the pan will have to drop. In my case, I removed the B2 just to explore and it was broken. I temporarily repaired it with "alternative engineering" if you know what I mean and it has lasted 15,000 miles now. To hold the dogbone in, use a liberal amount of Transjel or if none is available, Vasoline is its closest cousin. The stuff melts away with just a little heat but as long as the parts are room temperature, you can apply some to the piston and dogbone and kinda mold them where you want and they'll stay. I used about a spoonfull of vasoline and it worked great for me. Maybe I got lucky but I did used to work for a transmission shop. Eric.

mdisav · #3 03-25-2006, 04:49 PM

Thanks Eric!!

mdisav · #4 04-10-2006, 09:35 PM

I did the job today and used coconut oil to hold the dog bone in. Worked great! Thanks for your help!! She is up and running great!