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A fellow Pelacanite
 
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Thanks for the recommendation of the silicone gaskets. Maybe the solution is to use plain nuts and a tq wrench. I'm guessing that the nylocs are causing the problem with the clamping as the nyloc itself needs more tq to turn than the gasket needs to seal.
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

http://www.danasoft.com/sig/Iamnotanumber.jpg
Old 09-05-2008, 03:04 PM
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I wouldn't use anything but nylocks, especially if you were lightly tightening by hand. But yes, you can reuse them a few times if need be...
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Old 09-05-2008, 03:21 PM
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I cut up a set, Been there, Done that! Got the T-Shirt and the screwed up Gaskets to prove it!

You have to be real careful how you torque them up.
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 09-05-2008, 03:29 PM
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hey les, how much torque would you say to put on them?
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Old 09-05-2008, 06:07 PM
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Agreed....only use nylocs. I torque mine be feel. I think I read some place that it's about 6 to 8 ft. lbs. You'd need a wrench in inch pounds to be totally accurate. Again, I snug the nylocs up just until they have bottomed out against the cover and the cover is seated against the cam tower. Then I go around and give just a little bit more on each nut in a criss/cross pattern. Another trick I once saw a shop use if you are encountering leaks from the nuts, is to add a little Curil T on the threads of each stud, before threading the nut.
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back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)

Last edited by sand_man; 09-06-2008 at 04:32 AM..
Old 09-05-2008, 06:25 PM
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Quote:
Originally Posted by sand_man View Post
Agreed....only use nylocs. I torque mine be feel. I think I read some place that it's about 6 to 8 ft. lbs. You'd need a wrench in inch pounds to be totally accurate. Again, I snug the nylocs up just until they have bottomed out against the cover and the cover is seated against the cam tower. Then I go around and give just a little bit more on each nut in a criss/cross pattern. Another trick I once saw a shop use if you are encountering leaks from the nuts, is to add a little Curil T on the threads of each stud.
Exactly what he said ^^^^^^
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 09-05-2008, 08:45 PM
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I'm a DIY guy, I don't pretend to have the skill to do anything by feel. I can only use a tq wrench!
If I have to do something that does not allow a tq wrench on (like some of the nuts that hold the shafts in the tranny on the retaining plate) then I practice first using a spanner to achieve a similair force.

Do you think the force required to turn the nyloc on the thread is more than the silicone gasket can stand?
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

http://www.danasoft.com/sig/Iamnotanumber.jpg
Old 09-06-2008, 03:55 AM
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If there is a leak on the stud, the gasket is not doing its job. The cover is probably not flat or there is remains of old gaskets on the surface of the cam tower. There should be no nead to try and seal the nuts/studs that hold the covers on.

Cheers
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Old 09-06-2008, 09:26 AM
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I had a leaking stud for the valve cover. Turns out the stud actually protruded through the casting of the cam tower. This allowed the splashing oil inside to seep through the threads out the valve cover. All I had to do was remove the stud from the cam tower and put a small amount of Blue Locktite on the threaded portion of the stud(cam tower end).
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Old 09-06-2008, 10:47 AM
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Hehe, and for some reason it's always the lower studs that are loose in my experience.
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

1983 UK 911 3.2 Carrera Sport Coupe. Black, Black Leather with Red Piping, Black Alloy Gear Knob, K&N Air Filter Element, Turbo Tie rods.
Needs Fitting - K&N CO Sensor, Round A/F Dial Gauge, Factory Short Shift Kit.

http://www.danasoft.com/sig/Iamnotanumber.jpg

Last edited by NathanUK; 09-07-2008 at 07:18 AM..
Old 09-07-2008, 01:49 AM
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Quote:
Originally Posted by Jeff Alton View Post
If there is a leak on the stud, the gasket is not doing its job. The cover is probably not flat or there is remains of old gaskets on the surface of the cam tower. There should be no nead to try and seal the nuts/studs that hold the covers on.

Cheers
I agree...
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back in the saddle: '95 993 - just another black C2
*SOLD*: '87 930 GP White - heroin would have been a cheaper addiction...
"Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP)
Old 09-07-2008, 05:44 AM
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Like sand_man, I run the silicone re-usable ones and only use nylocs on them. No issues.

Ok, so how about some valve cover porn? I just got these back from powder coating.





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Old 09-07-2008, 09:33 AM
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Quote:
Originally Posted by onboost View Post
Like sand_man, I run the silicone re-usable ones and only use nylocs on them. No issues.

Ok, so how about some valve cover porn? I just got these back from powder coating.




Are you sure those aren't pictures you stole from my Rebuild PIX? Hmmmm...

http://www.lesgarten.com/pix/porsche/DSCF0598.JPG
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 09-07-2008, 10:05 AM
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That red is purdy ain't it? Just like that car/motor of yours!!

P-
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So many cars..so little time!!
Old 09-07-2008, 04:57 PM
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Macht Schnell
 
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Quote:
Originally Posted by onboost View Post
That red is purdy ain't it? Just like that car/motor of yours!!

P-
Classic, ehhh???
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---Les Garten---85 930, Andial IC, GHL Headers, Fabspeed Dual, K-27 HF2, 3.4 JE Full Finned 7.5:1 CR, 964 CAM'd, Carerra 3.2 Manifold Cut/Flipped, Tec3r, Siemans 55#, GSF Fuel Rails, Clewett Crank Trigger, Clewett Cam Trigger,Dual Plugged, ARP Head Studs/Rod Bolts, Clewett Wires.Tial 46mm WG, Tial 50mm BOV, WEVO Shifter,934 Boost Gauge, Wideband EGO Sensor/Gauge, C2T Head Gaskets, '88 MB 300TE,BMW R100RT
Old 09-07-2008, 09:40 PM
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