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HAO gearbox removal problem

Giles

Enthusiast
Messages
40
Location
Sussex
I have a late engine (950/1108) from which i am trying to remove the gearbox... but the Haynes manual seems to be missing a whole chunk!

The engine is out of the car, the gearbox says HAO 191 on the tag, the 4 large (17mm) bolts are removed from the top of the gearbox where it meets the bell housing (and then loosely replaced to prevent dropping the gearbox)... but then i spotted 4 little studs projecting out of the circumference of the flange. Two of these (at the top and the bottom) are the ends of studs that are threaded into the gearbox from the INSIDE (i.e. inside the bell housing). I was able to get these both out (13mm... i have shown one of them in position in one of the pics), but there are two more on the sides (one indicated by my little finger in the photos and my index finger in another) that i cannot get to: their heads are hidden by the flywheel.

The haynes manual makes no mention of a bell housing at all. Should i be removing the gearbox AND bell housing at the same time? This would require removing the cam shaft pulley and the starter motor... of which again there is no mention in the Haynes, and the clutch actuation lever goes through the bell housing, so what implications are there for things going TWANG! inside the housing as i pull it off?

The two little 13mm bolts were threaded right into the gearbox housing, are the other two not? Can i just belt the gearbox with something heavy to unseat it from the bell housing and draw it off these two little studs, which are in this case NOT threaded?

I thought this was going to be simplest procedure of the day, buts its turned into a Japanese puzzle!

Thanks

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The gearbox including bellhousing needs to be separated from the engine before the bellhousing can be removed from the gearbox. There are bolts going through from the inside of the bellhousing into the gearbox. Remove the starter and cam pulley. Nothing goes ping.
 
Excellent, thanks.

What will i find behind the bellhousing? Is there any point in taking it off unless I take the top off the gearbox and decide that there is work to be done (i've not seen it running)?

By the way, the car this will be going into is "Sequoia Green", 996 (i seem to remember), one of the missing colours from the site's chart. Are you still interested in photos?
 
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