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> Engine Removal, Half Shafts
jfort
post Sep 24 2017, 01:56 PM
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Big adventure for me. Have never done this before by myself. Taking the engine out of my 70 914-6.

I got everything, I think, disconnected and/or removed today -- except the half shafts. My memory is failing me. 5-10 years ago, I bought and installed bolts that were drilled for safety wires, which I did. Now I can't remember if they were 6mm Allen, which seems to fit if I can get it squarely in, or was there a spline fitting? I found a single spline thing with my Allen sockets that is just about the same size, perhaps 8. Something tells me it might have been purchased for those bolts. I can get the 6mm in there, but I am not sure that is it and I don't want to round the inside of the fastener. The spline thing may be too big or I may not have it square. Scared to pound it in.

The bolts are tight. Aren't they always? They got a dose of pbBlaster for the night. I'll finish this tomorrow, I hope.

Are the OEM bolts 6mm? Did anyone here install the drilled bolts and can you tell me, Allen or spline? What size? Any tricks getting them loose? A universal with an extension? (I just have headers) Use an impact wrench? I must have done this part of the job before, but the memory thing . . .

I seem to recall torque wrenching them, too. What should they be torqued to?

Thanks in advance.
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VaccaRabite
post Sep 26 2017, 11:08 AM
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If the bolts are drilled for safety wire, they likely are NOT stock and NOT a triple square. They will likely be a metric hex pattern allen.

Get a set of allen wrenches for a ratchet wrench. Clean the goop out of the socket and test fit.

Like everyone else said, use the right tool. Removing these things after they have stripped isn't any fun. I keep the CV bolt that I had to weld the allen tool to for extraction at my desk at work as a reminder that cutting corners doesn't pay in the long run.

Zach
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Posts in this topic
jfort   Engine Removal   Sep 24 2017, 01:56 PM
Perry Kiehl   Stock 914 4 and 6 CV bolts are 12 point triple squ...   Sep 24 2017, 02:18 PM
Mark Henry   Stock 914 4 and 6 CV bolts are 12 point triple sq...   Sep 24 2017, 08:29 PM
Lucky9146   Stock 914 4 and 6 CV bolts are 12 point triple sq...   Sep 26 2017, 03:27 PM
mobymutt   I used an extension (no universal) to get the sock...   Sep 24 2017, 02:34 PM
Dave_Darling   Stock is M8 "triple square". Allen-head...   Sep 24 2017, 02:48 PM
mepstein   If you used 911 cv’s, they are 6mm   Sep 24 2017, 05:12 PM
Larmo63   These only get torqued to 18.4 ft.lbs, so they sho...   Sep 24 2017, 06:12 PM
jfort   Thanks guys. I'll try to inspect them more clo...   Sep 24 2017, 07:17 PM
Perry Kiehl   Also, you need new schnoor washers everytime you t...   Sep 24 2017, 08:25 PM
falcor75   First time I loosened my driveshafts on the 914 I ...   Sep 25 2017, 12:42 AM
76-914   I clean them really good and tap them in the soc...   Sep 25 2017, 04:41 PM
Mark Henry   8mm =31 ft/lb 10mm =55 ft/lb It's a special h...   Sep 25 2017, 05:00 PM
porschetub   8mm =31 ft/lb 10mm =55 ft/lb It's a special ...   Sep 26 2017, 01:55 PM
Lucky9146   8mm =31 ft/lb 10mm =55 ft/lb It's a special...   Sep 26 2017, 03:29 PM
Perry Kiehl   [quote name='porschetub' post='2531585' date='Sep...   Sep 26 2017, 04:19 PM
porschetub   [quote name='porschetub' post='2531585' date='Sep...   Sep 26 2017, 09:11 PM
Perry Kiehl   If you've only torqued them to 18.4 Lawrence, ...   Sep 25 2017, 06:06 PM
jfort   Thanks for all the input. Last night I confirmed t...   Sep 26 2017, 09:02 AM
rjames   Some of the ones that were drilled for safety wire...   Sep 26 2017, 10:27 AM
Vacca Rabite   If the bolts are drilled for safety wire, they lik...   Sep 26 2017, 11:08 AM
Larmo63   Oops, yes, 31 ft.lbs. I did torque mine correctly...   Sep 26 2017, 12:13 PM
Lucky9146   Wow this is a great thread and extremely timely fo...   Sep 26 2017, 12:45 PM
Andyrew   I hate getting the bolts on the trailing arm side ...   Sep 26 2017, 01:53 PM
jfort   I had trouble getting the Schnorr CV joint bolt wa...   Oct 18 2017, 08:53 AM
11tenths   When I removed my CVs I found the PO had used some...   Oct 18 2017, 10:17 AM
altitude411   re: Schnoor washers- Which way is the correct...   Oct 18 2017, 11:11 AM
Dr Evil   My $0.02 I don't use gaskets anymore and...   Oct 18 2017, 10:59 AM
rjames   My $0.02 I don't use gaskets anymore an...   Oct 18 2017, 01:36 PM
Andyrew   I havent used a gasket in years either. I dont eve...   Oct 18 2017, 02:38 PM
jfort   posted to the wrong thread. sorry. see engine buil...   Dec 6 2017, 12:42 PM
Mark Henry   What's the plan wheels, brakes, etc? Are you g...   Dec 6 2017, 02:04 PM


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