Engine Removal, Half Shafts Options

[Lucky9146]

Stock 914 4 and 6 CV bolts are 12 point triple square allen, so you need to clean them off and get a close look. If you use a 6 point allen you'll strip them.

I clean them really good and tap them in the socket before leaning on them. If you don't seat it in the socket, you can strip it.

This is what came with mine. Trans was out so assuming these are correct?

[Lucky9146]

8mm =31 ft/lb
10mm =55 ft/lb

It's a special hardness bolt.

High tensile 12.9 from memory,I snuck mine up to 32ft/lbs ,they can take it no problem.
Make sure the joining faces are nice and clean,I didn't use gaskets as I didn't have them ...ok so far.

I don't have gaskets and was suppose to get them today but have not heard from the guy. Anybody else run without gaskets? Essential or not?

[IronHillRestorations]

8mm =31 ft/lb
10mm =55 ft/lb

It's a special hardness bolt.

High tensile 12.9 from memory,I snuck mine up to 32ft/lbs ,they can take it no problem.
Make sure the joining faces are nice and clean,I didn't use gaskets as I didn't have them ...ok so far.

I don't have gaskets and was suppose to get them today but have not heard from the guy. Anybody else run without gaskets? Essential or not?

by request here's my .02
You definitely need gaskets. No gasket will mean grease everywhere. I"ve never put them in without, ever. Make sure that the gasket is seated in it's recess before you start tightening the bolts.

The bolts you've shown look serviceable, but the pic is slightly blurry, just make sure the points are nice and crisp and nothing is rounded out.

Always use new schnoor washers, they are a one and done piece, so always get at least twice what you need in the event you've got to take them off.

There is a high quality re-useable locking fastener that later 911 guys are using, but they are over $10 each, but I've never had one in my hand. Stage8 makes some with a retainer and snap ring, but I'd only go to that trouble or safety wiring for a race car.

What I do is put it all together finger tight, without the schnoor washers, and then individually take off each bolt, clean it and the threaded holes, put the washer on and barely snug it until I get all 4 done that way.

I like to incrementally tighten them up in a crosswise pattern, until you get to the 31ft lb (min) spec. I think Sir Eric goes with 35 ft lb, 4 more ft lb isn't going to snap those 12.8 bolts.

Guys have gone to great lengths to make sure the bolts stay put, including loctite, drilling and safety wire, but I've had no problems when I've done it like this.

[porschetub]

8mm =31 ft/lb
10mm =55 ft/lb

It's a special hardness bolt.

High tensile 12.9 from memory,I snuck mine up to 32ft/lbs ,they can take it no problem.
Make sure the joining faces are nice and clean,I didn't use gaskets as I didn't have them ...ok so far.

I don't have gaskets and was suppose to get them today but have not heard from the guy. Anybody else run without gaskets? Essential or not?

Never used them as mentioned,if the face's are clean,how the hell is grease getting out of there,735kms of illegal driving since conversion and no grease coming out anywhere (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif) .

[jfort]

I had trouble getting the Schnorr CV joint bolt washers from Pelican who referred me to McMaster-Carr. The information is in the picture.

[11tenths]

When I removed my CVs I found the PO had used some type of sealant like RTV instead of gaskets and they hadn't leaked.
I cleaned eveything and reassembled with gaskets; we'll see who was smarter.


re: Schnoor washers-

Which way is the correct orientation- pointing towards the bolt head or away?

(IMG:style_emoticons/default/idea.gif)

- Harry

[Dr Evil]

My $0.02

I don't use gaskets anymore and haven't for years. Gaskets are mooshy and change tq value over time. Every spring I remember threads from people who had a lost shaft beat the hell out of the underside of their car. Back in 2004 through about 2007-8 I was making drilled bolts, 12.9 hardness, 6mm allen. You likely have a set of mine, I could tell if I saw them (IMG:style_emoticons/default/wink.gif) I safety wire the bolts now, and I make sure the surface is clean at the joint and I run a bead of RTV around the joint. Let it dry and its good to go. I have personally never had an issue with this, and I know of many who have done it this way and have never had an issue. YMMV.

[altitude411]

re: Schnoor washers-

Which way is the correct orientation- pointing towards the bolt head or away?

(IMG:style_emoticons/default/idea.gif)

- Harry

The convex towards the bolt head.

http://forums.pelicanparts.com/porsche-911...ay-they-go.html

[rjames]

My $0.02

I don't use gaskets anymore and haven't for years. Gaskets are mooshy and change tq value over time. Every spring I remember threads from people who had a lost shaft beat the hell out of the underside of their car. Back in 2004 through about 2007-8 I was making drilled bolts, 12.9 hardness, 6mm allen. You likely have a set of mine, I could tell if I saw them (IMG:style_emoticons/default/wink.gif) I safety wire the bolts now, and I make sure the surface is clean at the joint and I run a bead of RTV around the joint. Let it dry and its good to go. I have personally never had an issue with this, and I know of many who have done it this way and have never had an issue. YMMV.

Ditto. (IMG:style_emoticons/default/agree.gif)

[Andyrew]

I havent used a gasket in years either. I dont even use RTV and I dont think I've seen any grease loss.

[jfort]

posted to the wrong thread. sorry. see engine build thread

[Mark Henry]

What's the plan wheels, brakes, etc?
Are you going 5 bolt?