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Registered User
Join Date: Sep 2018
Location: surrey england
Posts: 3
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engine teardown question
first time taking engine apart to deal with broken head studs. Got as far as about to remove distributor but found can no longer fully rotate engine to get to tdc. Maybe something fell into an intake but nothing is visable. Can rotate clockwise and anticlockwise to same position each time but no further. As all is coming apart can I proceed without tdc or will I have to find a solution to remove distributor and cam nuts. Any advice gratefully received.................Russell
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09-29-2018, 08:12 AM
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Administrator
Join Date: Aug 2016
Location: Los Angeles, CA
Posts: 6,087
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Hello and welcome to the forum! Take a look at the link below to one of our site's DIY tech articles on the procedure. Please let us know if you have any questions or if we can assist with any part needs in the future.
https://www.pelicanparts.com/techarticles/101_Projects_Porsche_911/12-Engine_Teardown/12-Engine_Teardown.htm |
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10-02-2018, 12:03 PM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,519
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Broken head studs. You have SC. Or Carrera
Weather it will turn over or not You have to remove the head unit and the cylinders affected To get to the studs that are broken If there is something in the cylinder when the heads come off The you’ll see it Bruce |
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10-02-2018, 01:49 PM
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Slippery Slope Expert
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That definitely does sound like something has fallen into a cylinder, if it will rotate both ways to the same place. Been there.
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“As new technologies become indistinguishable from magic, and I can no longer tinker, the magic goes away for me.” |
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10-03-2018, 04:41 AM
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Registered
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You don't need to be able to rotate it to disassemble. You do when you assemble - it is useful to be able to rotate when you put it back in and fire it up :-)
You can carry on with disassembly. I had that issue once - was binding on the engine stand. Alan
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83 SC, 82 930 (track) - Stock except for RarlyL8 race headers, RarlyL8 Zork, K27-7006, 22/28 T bars, 007 Fuel head, short 3&4 gears, NGK AFR, Greddy EBC (on the slippery slope), Wevo engine mounts, ERP rear camber adjust and mono balls, Tarret front monoball camber adjust, Elgin cams, 38mm ported heads, 964 IC. 380rwhp @ 0.8bar Apart from above, bone stock:-) |
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10-03-2018, 10:47 AM
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Registered
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Correct.........
Quote:
Russell, You don’t need TDC for your engine disassembly. Continue your disassembly because you probably dropped a nut or washer inside the motor. You will find the culprit as you remove the cylinder heads. Tony |
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10-03-2018, 04:42 PM
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Registered
Join Date: Jan 2003
Location: Langley,B.C.
Posts: 12,025
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How far are you? If you have the P/C set removed and rods not supported they will bind and not allow rotation. Please provide a little more info or pictures about where you are at....
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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10-03-2018, 09:11 PM
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