Date: Fri, 8 Jul 2005 01:12:59 +0200 From: "Richard NL" <rootnospamlhost> Subject: Re: Saab 99 gearbox gasket or not?
Dave, thank you for the info, I was already hoping you could shed some light on this. The main reason I asked here is that I had never heard anyone that left the gearbox in place, even though it looked (rel.) easy. So... wise as I am (eh ... ahem.... ;) I though I better ask the better experienced here. :-) And yes, I was worried there just might be a bolt or two that I would not be able to remove this way. Good News about the steering rod and the inner drivers. I just didnt realise that. Makes a difference. *sigh* I _only_ have to replace the aux shaft that I broke when I rebuilt the oil pump and put the wrong rubber seal in there so it wouldnt turn anymore... Grr. Thanks again! Richard. "Dave Hinz" <DaveHinznospamcop.net> wrote in message news:3j5em5Fo51heU1nospamvidual.net... > On Thu, 7 Jul 2005 20:28:21 +0200, Richard NL <rootnospamlhost> wrote: > > "Dave Hinz" <DaveHinznospamcop.net> wrote in message > > news:3j58o3Fodp5cU1nospamvidual.net... > > . > > . > > > >> > 2: loosen all the gearbox bolts and get only the engine out, as this > > saves > >> > me the hassle of removing driveshafts etc. > >> > >> The driveshafts "hassle" totals two bolts for the lower ball joints per > >> side, maybe the shock absorber, and that's _it_. You'll also have to > >> undo the speedo cable and shift linkage. It's a whole lot easier to get > >> at the important bits when the engine and tranny are out as a unit. > >> > > > > Dave, > > > > are the driveshafts not bolted to the gearbox? I thought 4 bolts each? > > Nope, it's a 3-lobed driver going into the drive cups. Undo the clamps > on the rubber boots right at the tranny, undo the lower a-arm bolts at > the balljoint, slide the balljoint outwards. I did the shocks at the > same time but I'm not sure it's needed. > > > And I also have to disconnect the steering rods, right? > > Nope. Plenty of room to get the shaft ends out of the drive cups > without that. > > > Take both wheels off and put something underneath the car... > > Well, yes, the road wheels being off make getting to the ball joint > bolts much easier, so jack stands under the car will work the trick. I > usually use the shaft making the cross-bar on the "A" arm. > > > Drain the oil from the gearbox too... > > No reason to; you'll keep it horizontal. > > > If you take both shafts out, what happens to the differential thing in > > there? Or is that only an issue with the 900 gearboxes? > > Same gearbox for all practical purposes. You're not taking the inner > drivers out, you're taking the driveshaft out of them. Slides right > in/out. > > > Gearbox is only 12 hassles (bolts) total. > > Yeah, but you have to get the exhaust manifold out of the way, remove > the starter (if a B-engine) to get at the 3 or 4 under there, and a > whole lot of leaning over to get at things that are very easy to access > if you have the whole thing out. > > Not to mention the two bolts upwards through the back of the tranny case > into the back of the block. Those are a bitch. Don't forget the long > bolt behind the flywheel, going upwards, that is longer than the space > you have to remove it, and so on. > > > And the other option counts up to 4 + 4 + 4 + 4 + 2 + 2 + 1 + 1 = ehm .. 22 > > hassles (bolts) > > Voila: the reason for my question. > > Pull it as a unit, you won't regret it. I've done it both ways, and > there's no question. > > > Besides: the gearboxbolts are all nice and greasy, whereas the the ball > > joint bolts look a lot harder. > > You might be surprised. > > >> > The question is: > >> > Is 2: an option? And if yes: Is there a gasket between the engine and > > the > >> > gearbox? > >> > >> Not a good one, and I've seen gaskets but I always use a good grade of > >> RTV on that joint. Which is very tricky to get done properly if you're > >> fighting that joint with one in the car and one not in the car. The oil > >> strainer has to go in the sump, while you control descent of the engine > >> without smearing things, while you're avoiding the firewall at the > >> alternator bracket, while you're standing at an unnatural angle using > >> muscles in inefficient ways. > >> > > > > Hm... it doesnt seem that hard to me, but _I_ never did it before, so.... > > I guess it depends on if you're going to take the advice of several > people who have been there and done that, or if you want to repeat the > mistakes we've made and are advising you against. (shrug?) I've heard > the saying that goes something like "Experience is learning from your > own mistakes; wisdom is learning from the mistakes of others". > > >> Ask me how I know this... > > > > Ok then, if you insist: > > "Hey Dave, how do you know this?" > > Don't ask... > > > I will have a close look, and reconsider. > > Maybe some of these images will help: > http://www.davehinz.com/oldsite/saab/99turbo/ > > I don't have them annotated, but the pictures might help give you an > idea what you'll find in there. I also notice that I never uploaded the > installation pics, but as they say, it's more or less the reverse of > removal. > > Dave Hinz
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