Transmission to Engine Mounting Bolts (986 Boxster)

[Pierre's Porsche]

About a month ago I took my 2000 Boxster to an indy shop for a RMS and clutch change. Last week while changing my oil, I noticed that I only had 6 of the 8 bolts that mount the transmission to the engine. Of course I returned to the shop and demanded they replace the missing bolts and make sure and torque down all the parts that were r/r for the job. When I went to get the car back the second time, I made sure and asked the shop owner, "you're sure I now have all 8 bolts holding my transmission to the engine," and the answer was yes.... Well not true..!

I checked again yesterday, and I have 7 of the 8 bolts. Turns out the bottom most connection, which is a M10 stud screwed into the engine held in place by an M10 nut on the transmission side. The stud and nut are still missing...! Can someone confirm if I can replace this stud and nut without pulling the transmission out of the vehicle..?

Thanks.

[JFP in PA]

About a month ago I took my 2000 Boxster to an indy shop for a RMS and clutch change. Last week while changing my oil, I noticed that I only had 6 of the 8 bolts that mount the transmission to the engine. Of course I returned to the shop and demanded they replace the missing bolts and make sure and torque down all the parts that were r/r for the job. When I went to get the car back the second time, I made sure and asked the shop owner, "you're sure I now have all 8 bolts holding my transmission to the engine," and the answer was yes.... Well not true..!

I checked again yesterday, and I have 7 of the 8 bolts. Turns out the bottom most connection, which is a M10 stud screwed into the engine held in place by an M10 nut on the transmission side. The stud and nut are still missing...! Can someone confirm if I can replace this stud and nut without pulling the transmission out of the vehicle..?

Thanks.

Five or six speed? The five speed would have a total of seven fasteners from the factory, the six speed would have eight. Any of the fasteners can be replaced without removing the gearbox.

[Pierre's Porsche]

It's a five speed. So I dont need to worry about the very bottom stud/nut combination...the one at the very bottom (slighltly left (american drivers side) of center).

Thanks for the quick response!

[JFP in PA]

This photo of the engine with the transmission removed shows location and type of the fasteners that attach the transmission. The location and orientation of the hardware can be very confusing and it's not well documented in the Porsche factory diagrams, so I've provided a legend with part numbers for all Boxsters 1997-08 here: A- M10x40mm triplesquare (999-073-118-09) B- M12x1.5x100mm (999-072-010-09) C- M12x1.5x100mm (999-072-010-09) with 15x28x3.5 washer (N-905-028-02) D/G- M12x1.5x70mm (999-072-008-09) E/F- M12x1.5x90mm (999-072-009-09) H- M10 hex nut (900-377-011-09) attached to M10x30mm stud in transmission case (999-218-088-09)

[Pierre's Porsche]

I was going to copy the same image... I'm missing "H," which is a stud in transmission case attaches to nut. Based on a quick look, it looks like I'll need to separate the transmission from the engine to get the stud in. Do you think I can live with out it? Or do you stll think I can insert it without gear box removal/separation...?

Thanks.

[JFP in PA]

I would try to do it without pulling the gear box, that is a lot of work for one fastener, unless the car is going to see severe duty (e. g.: lots of track time), I would not be overly concerned about it not being there.

What I would do, however, is find another shop; people that leave fasteners out when putting these cars back together get up my nose and should not be allowed near them. I would also double check that all the other bolts are torqued properly.

[Pierre's Porsche]

Agreed. I checked all the rest of the bolts. Axle nut was a turn and half loose as well. Hopefully I did't damage the wheel bearing, good news is no noise or play.

I Will not be going back to this shop. I'm going to try and place the bolt this weekend. Thank you.