I may have discovered the fastener most likely to snap off
#31
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So is it the item in the first picture in the thread that is the failure point (the hex-sided doohickey with a hole at one end and a threaded deal on the other, or the bolts that screw into it? I am getting confused as to which needs improvement....
#32
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Er, uh, so can someone spell this out before I remove the cam cover to fix a tiny gasket leak I just noticed. Maybe I'll just leave the leak alone. I thought it was the posts on the head that break when you try to remove them to transfer to a new head. I know people complain about difficulty removing some of the obstructed hex head cam cover bolts and perhaps snapping one or two, but that doesn't seem like the same problem.
#33
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The first picture is of the item that commonly breaks. The picture that DR posted is of the replacement bolts that are used to eliminate the part that commonly breaks. With the replacement bolts, the spacers are no longer necessary. 1987 models and up come with these "newer" version bolts from the factory.
#36
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the problem is the 85-86 cam cover bolts screw into"the hex-sided doohickey with a hole at one end and a threaded deal on the other" The 1987 > cam cover bolts are much longer and they screw into the head(no doohicky) .Porsche no longer makes dookickeys but supersedes to the longer S-4 cam cover bolts. So trying to change the camcovers on a 1985-1986 32 valve often leads to broken doohickys and removal of the engine to drill out the broken bits. The long S-4 style bolts typically do not often fail but are rather expensive since it takes about 28 of the long ones and 18 shorter for one engine. This also points out that if your camcovers are leaking DO NOT ARBITRARILY JUST TIGHTEN THE BOLTS but especially on the 85-86 where the cam cover bolt screws into the head of another bolt.
#38
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And some people think Californians and Midwesterners can't communicate.
I didn't know they had Wisconsin-as-a-second-language courses out there, Jim.
So when something sheers, is it the hexagonal doohickey sheering in the head, or the bolt sheering in the doohickey, or both? And you say this new dingus will prevent it?
I didn't know they had Wisconsin-as-a-second-language courses out there, Jim.
So when something sheers, is it the hexagonal doohickey sheering in the head, or the bolt sheering in the doohickey, or both? And you say this new dingus will prevent it?
#39
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Jim described what proceeded to me getting a killer deal on my old '85S. PO wanted to fix a leaky driver's side leak and torqued the bolts. Few weeks later he did it again to solve the issue for a few more weeks until presto busts one. Then finds out the engine has to come out to fix said problem and freaks at the expense. Was quoted something like $2800 dollars from a local place to do the repair. Got the car for $4200 and it was in mint condition with only 72K on the clock. Was a pain in the **** to repair but sure turned out to be a sweet car. Damn I miss that thing.
Regards,
Regards,
#40
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Hmmm.... any reason to limit our fantasies with what access to a CNC and an understanding owner thereof can do (and make a bit of profit) for us 928-aholics to only new cam cover bolts?
Any other discontinued metal (or plastic) bits out there?
Any other discontinued metal (or plastic) bits out there?
#41
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I was born in Indiana spent about 28 years there ....so it shows? but at this point in my life I have more years in California ! And yes the stud on the bottom of the dookickey is what breaks off and must be removed from the cylinder head before you can screw in the new dingus........
#42
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New to the site, not really an owner yet, guess you could call me a 1/2 owner as 1/2 the car is paid for and it is still in transit. It is an 85s w 85k. From what I have read you should count me in for a set of "dinguses" also.
Have never done a timing belt so fist one will be professionally, would it be prudent to have wrench replace "dinguses" if there is no sign of leakage yet.
Michael T Greco
almost mine 85S,85k
Have never done a timing belt so fist one will be professionally, would it be prudent to have wrench replace "dinguses" if there is no sign of leakage yet.
Michael T Greco
almost mine 85S,85k
Last edited by crackerfeet; 02-25-2005 at 12:15 AM. Reason: no name attached
#43
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Originally Posted by Jim bailey - 928 International
... The long S-4 style bolts typically do not often fail but are rather expensive since it takes about 28 of the long ones and 18 shorter for one engine.
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Dave that number did seem a bit odd based on the later fische number count but I think you are closer at 12 per cam cover 24 total that was the count for the doohickeys on the 85-86 fische.