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Ozzie · Posted: Wed Aug 03, 2005 5:46 pm Post subject: OOps!

While looking for vacuum leaks today I pulled on the crankcase vent hose near the rear of the block and it broke off in my hand.
The hose came away with the restrictor in it and left a short piece behind.

Is this restrictor necessary?
Can I replace this hose without it or is the genuine part vital?

Also found other problems but should have no queries with them.
The car is Euro/Row spec.

Thanks
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

leadfoot · Posted: Wed Aug 03, 2005 6:17 pm Post subject:

Yep it'll do that.
Mine went hard and crack then broke off. I believe 3/4" heater hose works well without the restrictor. As the right angle metal tube that comes off the ufo is that size. That other bit is a waste I rekon as I ditched mine a while ago and havent looked back.
Not as bad as what I did though....
In attempting to fix a broken manifold stud (bottom of the manifold,top of the downpipe) I managed to break off every stud getting off the exhaust, drilled out every stud as the extractor was useless and preceded to tap the holes out when in doing the last hole, broke off the tap inside.
Now irony would have been braking it off in the same hole as I had the origional stud broken off in but alas it was not and the whole ordeal cost me two days of frustration.
If anyone knows how to drill out a tapp I would be most appreciative.
Good luck with the hose.
Leadfoot
_________________
1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

leadfoot · Posted: Wed Aug 03, 2005 6:17 pm Post subject:

Yep it'll do that.
Mine went hard and cracked then broke off. I believe 3/4" heater hose works well without the restrictor. As the right angle metal tube that comes off the ufo is that size. That other bit is a waste I rekon as I ditched mine a while ago and havent looked back.
Not as bad as what I did though....
In attempting to fix a broken manifold stud (bottom of the manifold,top of the downpipe) I managed to break off every stud getting off the exhaust, drilled out every stud as the extractor was useless and preceded to tap the holes out when in doing the last hole, broke off the tap inside.
Now irony would have been braking it off in the same hole as I had the origional stud broken off in but alas it was not and the whole ordeal cost me two days of frustration.
If anyone knows how to drill out a tapp I would be most appreciative.
Good luck with the hose.
Leadfoot
_________________
1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

Ozzie · Posted: Wed Aug 03, 2005 6:49 pm Post subject:

Oww!. Haven't broken a tap in years but I remember the pain of removal.
Sometimes needle nose pliers will get it out without drilling.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

kaffine · Joined: 13 Jun 2003 Posts: 644 Location: Las Vegas

Depends on if you have a good tool store near by or not. They make special tools to remove broken taps. Or you might be able to make something work.

http://www.waltontools.com/products/extractr.htm
_________________
80 924
80 931

The best desciption of an atom boils down to something unknown is doing we don't know what.
Sir Arthur Eddington

emoore924 · Joined: 13 Apr 2004 Posts: 2822

Taps are generally made of really, really, really, really hard steel and eat even nitrided drill bits for breakfast.

Try snap ring pliers. Sometimes you can get the tips in beside the flat side of the tap and unscrew it out.

Good luck!!

bryanc · Joined: 27 Feb 2003 Posts: 233 Location: San Antonio, Texas

You can also try using penetrating oil and letting it soak for a day or 2 and then using a small drift and a small hammer to rotate the tap backwards. Getting it to move the first slight bit is the hardest. Be gentle!
Good luck!
_________________
'84 944
I'd rather have a bottle in front a' me than a frontal lobotomy
Tom Waits

Ozzie · Posted: Sat Aug 06, 2005 6:18 pm Post subject:

Well due to the vacuum setup on the Euro spec cars/ no canister, without the restrictor you lose all vacuum to the brake booster.
Got good vacuum and acceleration now but can't stop.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance