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in all your combined years......ever see this happen...?
at around 130mph one of the pins that holds the drivers side timing chain ramp fell out... the ones the ramp snaps too..
oil came spewing out the hole and onto the exhaust system.. i was under the impression that the pins were pressed in by the factory... it had to be the drivers side.... after cuting off 3 nuts: i pulled all the turbo stuff out of the way and pulled the cover hoping it was siting in the bottom of the cover.. im pulling th sump tomorrow to see if it made it down there... maybe it fell out onto the road... anyone ever see this happen?
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11-08-2005, 05:50 PM
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Irrationally exuberant
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Just last summerI helped a friend fix his car after one of those pressed in pins fell out somewhere on the track. We took one out of a used chainbox and fixed it and he was back at the track the next day.
-Chris
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'80 911 Nogaro blue Phoenix! '07 BMW 328i 245K miles! http://members.rennlist.org/messinwith911s/ Last edited by ChrisBennet; 11-08-2005 at 07:27 PM.. |
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11-08-2005, 07:23 PM
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er.... those are bolts that hold the chain ramps on... ...and it nearly cost a fellow Pelican his run at "One Lap of America" a few years ago. SOunds like it wasn't torqued properly...
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Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
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11-08-2005, 08:14 PM
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uh... bolts?
im looking at two pins with notches in them that the ramp is supported by... not bolts. "We took one out of a used chainbox and fixed it " how do you fix pressed in pins? or am i going crazy..? maybe this is more common then i thought... :\
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SWB Last edited by air-cool-me; 11-08-2005 at 11:52 PM.. |
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11-08-2005, 11:33 PM
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 not mine... but this is the "thingy" thats eather worked its way backwords out of the car onto the ground... or is down in the sump..... this is suposed to be a bolt of some sorts? i dont know anymore then what im told by my mechanic....
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11-08-2005, 11:40 PM
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Hello there.
Your mech is right , and no never known one to fall out.. I'd suspect the tensioners may not be damping the chain enough..may be failing.. Has the tensoiner arm got a bronze bush at the pivot? If not, this also needs attention.. Kind regards David |
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11-09-2005, 01:52 AM
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D'oh! Sorry I was thinking of the inboard "pins"... which are bolts and screw into the case. Never see one fail either.
Make sure your chain is in good working order there and be sure that the chain-box holes are not ovaled from when it worked it's way out. They are pressed in, then a JB-Weld like epoxy seals them from behind.
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Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
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11-09-2005, 05:35 AM
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found it.... it was in the sump... what a wierd PITA!
working on a solution now...
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11-09-2005, 08:10 AM
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The Blue Pheonix
1970 Porsche 911 S 
