993 engine+trans drop- tips needed

herman maire · 02-07-2008, 04:56 PM

Is dropping a motor + trans on a 993 the same as any other 911 or is there specific stuff I should watch out for.

I am doing this tomorrow so would really appreciate and DONT'S and DO'S

Thank you

rsrmike · 06:20 PM

It is extremely heavy and akward compared to say a 2.7 magnesium engine/trans combo.
They don't balance well when you put the jack at the bell housing end of the case as you would with the older combos. Have lots of help and possibly an extra floor jack or two.

Wiring and hoses are pretty easy, just lots of it. Have you ever messed with the G-50 clutch release setup?

herman maire · 02-07-2008, 06:28 PM

Quote:

Originally Posted by rsrmike

It is extremely heavy and akward compared to say a 2.7 magnesium engine/trans combo.
They don't balance well when you put the jack at the bell housing end of the case as you would with the older combos. Have lots of help and possibly an extra floor jack or two.

Wiring and hoses are pretty easy, just lots of it. Have you ever messed with the G-50 clutch release setup?

Thanks for the reply.

I was just going to disconnect the slave cylinder. Does the complete assembly lower like the older 911's? ( exhaust, silencers ect..)

Where is the best spot to jack the car up to get it high enough so the motor clears the rear cross member? Also how high should it be to clear?

I dont have a lift so I am using floor jacks and jack stands

rsrmike · 02-07-2008, 06:32 PM

It's been a few years since I pulled one, seems like you either remove the bumper or the mufflers. The shift coupling is underneath the car covered by a few covers...
I usually disconnect the clutch hydraulic line at the farthest point away from the slave cyl where the rubber meets the metal line on the body... It's a little less messy to disconnect the oil feed line from the case where it clamps onto the metal pipe that screws onto the case, I would clean this area really well and cap it off on both sides immediately.
I also disconnect the throttle cable all the way at the pedal assembly, popoff the ball socket,then unscrew the ball socket from the cable and pull the whole conduit/cable assembly out with the engine

Obviously you have to remove the center section of the subframe where the swaybar mounts... I'll try to think up more "hints" Good luck, be careful

herman maire · 02-07-2008, 06:35 PM

Quote:

Originally Posted by rsrmike

It's been a few years since I pulled one, seems like you either remove the bumper or the mufflers. The shift coupling is underneath the car covered by a few covers...
I usually disconnect the clutch hydraulic line at the farthest point away from the slave cyl where the rubber meets the metal line on the body... It's a little less messy to disconnect the oil feed line from the case where it clamps onto the metal pipe that screws onto the case, I would clean this area really well and cap it off on both sides immediately.
I also disconnect the throttle cable all the way at the pedal assembly, popoff the ball socket,then unscrew the ball socket from the cable and pull the whole conduit/cable assembly out with the engine

Obviously you have to remove the center section of the subframe where the swaybar mounts... I'll try to think up more "hints" Good luck, be careful

Thanks again.

removing the center section of the subframe is a great hint... thats the part i could not figure out. Cool

rsrmike · 02-07-2008, 06:37 PM

You just need to raise it to a safe working height cause you won't get it high enough to clear the motor and work on it comfortably/safely.

***** man, if your using jackstands you may seriously consider pulling the rear bumper cover and heat shields so you don't have to raise the car as high.

You won't get it high enough either way without a pretty serious jack, like one that goes up say, 30inches? or so

rsrmike · 02-07-2008, 06:44 PM

I rented a "truck jack" from local tool supplier to drop an SC engine/trans.
I wouldn't dream of using anything else on a 993 FWIW

I now own what I hope to be a pretty neat jack, Haven't used it yet
It's made by Ranger and I bought it here
http://www.asedeals.com/Ranger_floor_jacks.html
I don't think Pelican sells the AC jack anymore? so hopefully this is not out of line to suggest

I'll be using it to drop a 3.6 from a RUF RCT w/6spd this weekend in my garage so it should be a similar setup to yours

Don Plumley · Don Plumley's Garage

Mark the eccentrics when you pull the cross member. You'll still need to have a new alignment after you reinstall the engine, but it will help.

I'm pretty sure Bill V has done a drop or two.

This guy from Rennlist did a full rebuild, only a few pics of the drop though.

Take pics and keep us posted!

herman maire · 02-08-2008, 04:16 AM

Truck jack is a great idea and Don thanks for the link... tons of great info there.

boeing 717 · 02-08-2008, 07:24 AM

RsrMike can you go into a little detail on the throttle cable im trying to do that now for dropping my 964 turbo engine, do you have to remove that center tunnell cover?? Also can you tell me how high the car needs to be jacked up with the bumper off????

Thanks
JERRY

rsrmike · 02-08-2008, 08:39 PM

Hey Jerry, You need to remove the wood toe-board around the pedals, Then unsnap the ballsocket that hooks to the bellcrank that snaps in the throttle pedal. Take note of how far the ballsocket is screwed onto the cable. I usually hold the ballsocket with pliers and break loose the 8mm jam nut that locks it to the cable. I unscrew the nut too, although you don't always have to. Check out the illustration on the link below, unscrew 6&7 from 5 and remove 5 completely with the engine-it just slides onto a tube at the rear

http://www.pelicanparts.com/PartsLookup/HTML/911C2_USA_KATALOG/702-10-Frame3.htm

I can't give any dimensions for your application, only that it's friggin' up there!!
I kind of depends on what your setting the engine on to slide it out from under.
I was refering to removing the bumper on a 993 as from what I remember, it's a lot simpler than a 964 FWIW
I usually work on it at one height,drop the engine on a dolley, then raise the car high enough to slide the engine out and set it right back down on jackstands. I must admit, I've never pulled a 964/993 that wasn't on a lift. They are not nearly as friendly to floor jacks and jack stands as the older cars. Good luck, be careful-turbo motors tend to be a little heavier on the driver's side as you lower them

boeing 717 · 02-09-2008, 06:41 AM

Thanks alot Mike i appreciate it.

JERRY

930gt-40r · 930gt-40r's Garage

on a 993, I have always disconnected the throttle cable at the pedal cluster and pulling the cable through. I dont think I ever removed the tunnel cover. On a C2 turbo, I think that this would be the easiest/quickest way of removing the cable as well.

boeing 717 · 02-20-2008, 07:43 AM

Well i got the throttle cable off at the engine. I started taking the throttle cable off at the pedal but i became scared at how hard it would be to get the cable back into that little hole. Once i could see how the ball socket and that pin came off i was able to do it by feel. I just hope i will be able to get it back on once the engine is back in.

JERRY

930gt-40r · 930gt-40r's Garage

well that is good you got it off. Trust me on this one- If you unscrew the ball socket at the pedal end and pull it through you will be fine. There is a black plastic adjustment that slides over the tube- this slides off with little persuasion, and pull the whole cable through. Attach it back to the motor while it is out, it is going to be a GIANT pain in the rear (I especially hate routing it back in for some reason...)if you have to feel your way around on re-entry. You will not have a problem running the cable through the tube, I promise. If you do it that way you have 5 minutes worth of reconnecting the pedal and replacing the floorboard/carpet. This is the way I did it on all the cars I did at Porsche (911 turbo, 993 turbo, 993 N/A), I wouldnt steer you wrong.

930gt-40r · 930gt-40r's Garage

Quote:

Originally Posted by rsrmike

Good luck, be careful-turbo motors tend to be a little heavier on the driver's side as you lower them

Ha, I almost figured this out the hard way on my back with some jack stands and a jack.

boeing 717 · 02-21-2008, 06:57 AM

Thanks 930gt.............so do you think i will have to disconnect at the pedal anyway so that i can pull the cable out a little to hook it to the engine while its out??????

herman maire · 02-21-2008, 07:53 AM

I got my motor out last week and I will post some pics.

I ended up lowering the motor a little then I disconnected the throttle cable at the intake... I just found it easier. I did start to pull stuff out to get access to the throttle cable at the gas pedal and I unbolted the metal skid plate ( under the center of the car) but I found it much less work for me to just disconnect the throttle cable at the intake.

Other than that everything went pretty well... I am now more familiar with the 993 than I thought I would ever be, one of the bonuses of working on your own car.

930gt-40r · 930gt-40r's Garage

Disconnect throttle at pedal= 100% less hassle
I never removed the long metal skid plate in order to do the job, I just wiggled the plastic adjustment loose and pulled the whole cable through, it goes back in easy I swear.
I think it would be easier to re-attach it to the motor and slide it down the tube once the engine is in.