Carlsbergas

Update: bolt is still stuck, going to get it out today, so while i was sitting infront of the engine thinking how stupid i was to use round head allen tools to unscrew these bolts, i looked closer at the timing belt, even tho it has almoust 18k miles on it, its in prettu bad shape not that threads are almoust flat, they look great, its just theyare coming off the belt..

Tom M'Guinn

Do yourself 2 favors:

1. Get a new Cobalt drill bit to drill it out.
2. Get a long 6mm L-shaped hex key, cut off the L part, and drive it (from the cut end) with a 1/2" drive 6mm 6-point socket, or a 3/8" 6mm 6-point socket with 1/2" ratchet adapter. The smaller the ratchet you use, the more likely you are to strain, side-load and strip the bolts out. Put the factory-clean end of the hex key in the bolt nice and squared-up, give it a solid tap or two with a metal hammer, then put the socket/ratchet on to remove.

For some reason, those bolts tighten up like crazy after being in there a while. Not uncommon for them to make a load cracking sound when you break them loose. Good luck!

Carlsbergas

looks like this guy had the same problem http://www.944time.com/porsche/944-cam-tower.php and well from video it sounds just like mine

divil

Did you make any progress on this? I noticed there is a guy selling a cam tower assembly including the camshaft https://rennlist.com/forums/944-turb...rbo-parts.html - if it includes the key and sprocket that might help you, assuming you can get the cam tower off the car.

Carlsbergas

I think i got all the parts i need got my self an 4 degree offset woodruf key also. Im going to change timing belt and water pump. I might need just a cam tower i think i busted this one while taking out the stuck bolt tho..

Carlsbergas

Took the bolt out



When i took of the cam tower i noticed some metal shards from drilling got into oil shaft, that might be troublesome to get out..

Scott H

Did you try pounding in a correct sized Torx bit before drilling? I've had pretty good success with that method when allens strip out. Works really good on the bolts holding the turbo to the pedestal.

Carlsbergas

I was just drilling and smashing it to bits untill it got lose when i took out the broken tool head from this bolt it was already too messed up to get it out easly

Carlsbergas

just put everything back together and the car started, and is idling without knocking, im just alittle bit scared the exhaust headers wrap is kinda soaked in oil after removing cam tower and is smoking pretty bad

Chris Prack

Sweet! Good to hear.

jmj951

That's good news, but too bad about the exhaust wrap. At least it's easy to remove. I still have a wrap on mine, but the next time I have my headers off, I'll probably coat them instead.

txhokie4life

Awesome -- glad you figured it out.

mike

Carlsbergas

I went a bit risky way and just let that oil burn up, fixed the vacuum and boost leak, found out that i forgot to tight the hoses up... it was a long night,

By the way i used offset woodruff key and advanced my timing by 4 degrees, woah what a difference! I can actually feel that car has more torque at low end rpms, before that i couldnt get into the hill on 5th gear now it goes up easly, and the car doesnt feel so dull anymore at low rpms

jmj951

Can you tell me where you bought your offset key, and exactly which part you bought? Did it fit right in, or require any work?

Carlsbergas

http://www.928motorsports.com/parts/...aft_keyset.php from here, i just found out there was 4 and 2 degrees keys, wonder wich one i put in lol
but yeah it didnt fit right in, had todo some grinding on it