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> Pull type clutch question….
Larmo63
post Oct 17 2015, 07:57 PM
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Do I need a special clutch/pressure plate for a pull type clutch system I'm assembling for my 911 conversion?

Will this work? The trans is a '70-71' I've been told. But, I'm not familiar with this stuff. Thanks for the help.


http://www.ebay.com/itm/Porsche-911-65-69-...ecAAOSwhcJWFxS7
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Steve
post Oct 19 2015, 11:52 PM
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Hassle wise, it is easier with a six 2.0-2.7 to use the 2.0 six flywheel. It mates up with a stock 2.0 six push clutch package and bolts right up to a stock 914 trans. I ran this combo with my 2.7 six for over 10 trouble free years.
When running a 3.0-3.2 you are stuck with a KEP adapter to work with the 914 trans.
For a 3.0-3.2 motor the 71 901 trans pull clutch works much better than the KEP adapter.
The clutch pedal with the 71 901 trans pull clutch went down like butter. The KEP adapter with stage 2 clutch felt like something was going to snap. This is my opinion based on experience with both transmissions.
I ran the KEP adapter for 15 years with a stock 914 trans and my 3.2 motor. I recently upgraded to a 915 gearbox, to get around the clutch issues and get the correct gearing for my 3.2 six.
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rgalla9146
post Oct 20 2015, 05:42 AM
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QUOTE(Steve @ Oct 20 2015, 01:52 AM) *

Hassle wise, it is easier with a six 2.0-2.7 to use the 2.0 six flywheel. It mates up with a stock 2.0 six push clutch package and bolts right up to a stock 914 trans. I ran this combo with my 2.7 six for over 10 trouble free years.
When running a 3.0-3.2 you are stuck with a KEP adapter to work with the 914 trans.
For a 3.0-3.2 motor the 71 901 trans pull clutch works much better than the KEP adapter.
The clutch pedal with the 71 901 trans pull clutch went down like butter. The KEP adapter with stage 2 clutch felt like something was going to snap. This is my opinion based on experience with both transmissions.
I ran the KEP adapter for 15 years with a stock 914 trans and my 3.2 motor. I recently upgraded to a 915 gearbox, to get around the clutch issues and get the correct gearing for my 3.2 six.


Just to clarify, the '70-'71 trans from a 911 is identified as the '911' type trans.
Before, was the 901, after was the 915.
A 914 trans can be converted to a pull type clutch.
It requires moving the pivot location for the throw-out -arm and then using all the parts for the '70-'71 clutch.
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Mark Henry
post Oct 20 2015, 05:39 PM
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QUOTE(rgalla9146 @ Oct 20 2015, 07:42 AM) *


Just to clarify, the '70-'71 trans from a 911 is identified as the '911' type trans.
Before, was the 901, after was the 915.
A 914 trans can be converted to a pull type clutch.
It requires moving the pivot location for the throw-out -arm and then using all the parts for the '70-'71 clutch.


I've always called it the 911-901 , not that it's correct, it's just the easiest for me to identify it.

Although machining the case is the correct way, to use the pull clutch, there is not a whole lot of meat to grab onto between the different cases.
My 1967 bug has a 911-901 and I using a 914/4 clutch assembly. I never machined the case.
I took a 914 pivot and release bearing arm and bent, cut, welded with a gusset, till it worked correctly.
It's been 3 years of summer daily driving without issue.
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Posts in this topic
Larmo63   Pull type clutch question….   Oct 17 2015, 07:57 PM
euro911   Lawrence, you'll need an early 911 flywheel (...   Oct 17 2015, 09:07 PM
rgalla9146   Wait a minute, the trans is a '75 what ? a...   Oct 17 2015, 09:17 PM
euro911   The engine came out of my '67 912-6. The case ...   Oct 17 2015, 09:28 PM
ClayPerrine   A 1975 transmission would be a 915. That clutch a...   Oct 17 2015, 10:13 PM
Larmo63   Update, yes, the engine is a six bolt '69 911E...   Oct 17 2015, 10:57 PM
euro911   Lawrence, is this all for Speedy? Has the diff ri...   Oct 17 2015, 11:45 PM
jcd914   70/71 911 pull type clutch uses a different pressu...   Oct 17 2015, 11:54 PM
Larmo63   Yes, it is a 911/01 tranny rebuilt with /6 gear ra...   Oct 18 2015, 12:27 AM
oldie914   A little history: For the 1970 911 model year, Por...   Oct 18 2015, 02:19 AM
rgalla9146   And now you've got all the dirt. Enough to...   Oct 18 2015, 05:25 AM
ClayPerrine   I have this setup in my six conversion, and have b...   Oct 18 2015, 09:52 AM
Larmo63   Thanks guys, at least I know what to look for now,...   Oct 18 2015, 11:46 AM
Mark Henry   I would have used a 914 trans case*, 6 bolt '6...   Oct 18 2015, 11:06 PM
stownsen914   I have the 70-71 clutch setup in my 914/6 racecar....   Oct 19 2015, 09:23 AM
Larmo63   Do 914 CVs fit the 911/01 output flanges, or am I ...   Oct 19 2015, 07:01 PM
Mark Henry   Do 914 CVs fit the 911/01 output flanges, or am I...   Oct 19 2015, 07:17 PM
euro911   911 axles and CVs are larger and have 6 bolts. You...   Oct 19 2015, 07:19 PM
Mark Henry   I think this is the main reason so many have rec...   Oct 19 2015, 08:57 PM
euro911   Ah ... Mark beat me to the post - while I was stil...   Oct 19 2015, 07:22 PM
rgalla9146   If you go with the pull clutch it will be near imp...   Oct 19 2015, 08:22 PM
ClayPerrine   If you go with the pull clutch it will be near im...   Oct 19 2015, 08:29 PM
Larmo63   The flanges do fit the same CVs I have. I have alr...   Oct 19 2015, 09:23 PM
Steve   Hassle wise, it is easier with a six 2.0-2.7 to us...   Oct 19 2015, 11:52 PM
396   Hassle wise, it is easier with a six 2.0-2.7 to u...   Oct 20 2015, 12:03 AM
rgalla9146   Hassle wise, it is easier with a six 2.0-2.7 to u...   Oct 20 2015, 05:42 AM
Mark Henry   Just to clarify, the '70-'71 trans fro...   Oct 20 2015, 05:39 PM
Larmo63   Yes, I mis-identified it earlier as a 901/01. My t...   Oct 20 2015, 04:18 PM


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