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> Clutch arm position ?, correct or not...
Dr Evil
post Oct 4 2017, 11:01 AM
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Im at work so don't have diagram here, unfortunately. As for shimming with one standard washer under the pivot ball, that is not an issue and has been done hundreds of times. The real issue is if your flywheel is machined down so much that the retaining bolts hit the pressure plate (many here have seen that). I have a deep 14mm socket to get the ball out, it did bevel the edge so it fits in the recession. No need to over torque it. I use a wrap of Teflon tape after I shim to make sure it seals in leaks form the tranz. Its only a small amount of tape, but it keeps things clean and wont foul up anything.
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porschetub
post Oct 4 2017, 12:41 PM
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QUOTE(Dr Evil @ Oct 5 2017, 06:01 AM) *

Im at work so don't have diagram here, unfortunately. As for shimming with one standard washer under the pivot ball, that is not an issue and has been done hundreds of times. The real issue is if your flywheel is machined down so much that the retaining bolts hit the pressure plate (many here have seen that). I have a deep 14mm socket to get the ball out, it did bevel the edge so it fits in the recession. No need to over torque it. I use a wrap of Teflon tape after I shim to make sure it seals in leaks form the tranz. Its only a small amount of tape, but it keeps things clean and wont foul up anything.


Thanks for chiming in Dr,flywheel was received in used condition,the clutch running surface was spot on ,it didn't appear to have been heavily machined.
Fairly recently removed the clutch and found nothing unusual,if you do have the flywheel drawing I would appreciate if you could put it up on here, (IMG:style_emoticons/default/beer.gif)


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johnhora
post Oct 4 2017, 02:44 PM
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here you go...flywheel specs

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Dr Evil
post Oct 4 2017, 03:39 PM
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Rock on! I just got home....so no need to do this on my end.
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porschetub
post Oct 4 2017, 03:51 PM
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Thanks guys ,getting ready to refit box,will pull clutch and check,thats the bloody pic I couldn't find (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/beer.gif) .
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porschetub
post Oct 4 2017, 04:08 PM
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Ok got the clutch out,all in order,my digital verniers measure,just under the limit of "A" measurement so my thinking is the flywheel has had one reface ???.
Think I'am on the right track ,thanks heaps.
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johnhora
post Oct 4 2017, 07:03 PM
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porschetub...

also check the fork....there is a little plastic "bearing" in the hole for the ball.
PN 901-116-741-01 Pivot Bushing for Clutch Release Fork
these sometimes get cracked and worn.

http://www.pelicanparts.com/catalog/SuperC..._pg4.htm#item20
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porschetub
post Oct 4 2017, 11:30 PM
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QUOTE(johnhora @ Oct 5 2017, 02:03 PM) *

porschetub...

also check the fork....there is a little plastic "bearing" in the hole for the ball.
PN 901-116-741-01 Pivot Bushing for Clutch Release Fork
these sometimes get cracked and worn.

http://www.pelicanparts.com/catalog/SuperC..._pg4.htm#item20


Thanks John,that parts new as for the rest of those parts in that area.
Box is back in the car,clutch (non running) seems different to me cause it not fouling on the trans case perhaps....
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r_towle
post Oct 5 2017, 04:01 PM
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Broken spring in pressure plate is hard to test.
Seen it, replaced it.
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porschetub
post Oct 6 2017, 01:45 AM
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QUOTE(r_towle @ Oct 6 2017, 11:01 AM) *

Broken spring in pressure plate is hard to test.
Seen it, replaced it.


P/P plate is new (nos),freeplay in lever is exacty as stated,your trick worked fine,piece of wood under pedal braced to rear firewall and 4mm clearance on the trans case with the release arm,no more contact...happy camper.
No muffler but wanted to start motor to check other stuff.....started straight off,holy what a sound (IMG:style_emoticons/default/aktion035.gif) (IMG:style_emoticons/default/aktion035.gif) ...these motors (IMG:style_emoticons/default/drooley.gif) (IMG:style_emoticons/default/drooley.gif) .
EDIT,was thinking what they sound like on megaphones (IMG:style_emoticons/default/w00t.gif) (IMG:style_emoticons/default/w00t.gif) .
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Dave_Darling
post Oct 6 2017, 02:34 PM
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QUOTE(johnhora @ Oct 4 2017, 01:44 PM) *

here you go...flywheel specs


Notice the upper-right corner. These specs are specifically for the 914-6, not the four-cylinder motors.

I believe the numbers do work "well enough" for the four-bangers, but the diagram specifically is for the Six.

I have never found an official diagram for the four-cylinder flywheel tolerances.

--DD
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porschetub
post Oct 7 2017, 01:17 PM
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QUOTE(Dave_Darling @ Oct 7 2017, 09:34 AM) *

QUOTE(johnhora @ Oct 4 2017, 01:44 PM) *

here you go...flywheel specs


Notice the upper-right corner. These specs are specifically for the 914-6, not the four-cylinder motors.

I believe the numbers do work "well enough" for the four-bangers, but the diagram specifically is for the Six.

I have never found an official diagram for the four-cylinder flywheel tolerances.

--DD


Pretty sure those specs are right,my flywheel is 911 the only difference is that the 914/6 one has a timing mark on it as far as I know.
Interesting how they mention machining with a lathe ?
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