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Quick valve adjusment question
After adjusting the valves do you coat the valve cover gaskets with a thin coat of oil when you are assembling them? I'm using graphite gaskets and this is a 2.4 MFI engine.
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07-16-2009, 10:16 AM
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Join Date: May 2003
Location: Laguna Beach, CA
Posts: 1,405
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Install them dry, graphite is a dry lubricant. I would recommend buying the silicone gaskets they are reusable and seal the best IMO.
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68 911L |
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07-16-2009, 11:26 AM
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yes on the silicon gaskets, they are great, can be reused over and over.
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fully disassembled, blasted, customized and restored 75 targa with factory hard top, 993 style turbo ft fenders, steel flares, C2 bumpers and rockers, 82 3.0 sc 9.5/1 engine with PMS flywheel, 964 cams, flowed heads, ssi's short geared 915 w/lsd, polybronze, bilstein,working lambda, modified and highly tuned cis, tensioners, pop valve, backdated exhaust and heater, 2300 lbs. no bolt left untouched. 1970 911E. Nice car but needs a re-do. |
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07-16-2009, 12:40 PM
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Thanks much.
Next time around I'll get the silicon gaskets. |
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07-16-2009, 12:49 PM
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One more question...(this is my first time)
Should I let the car sit overnight after completing the adjustment before driving it? I thought i read that somewhere...??? |
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07-16-2009, 12:52 PM
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Do the adjustment stoned-cold....but not heard of sitting overnight before driving....
Interesting footnote.....But I don't see why? Best, Doyle
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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07-16-2009, 01:57 PM
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Never heard that one. I just adjusted my valves and immediately after putting everything back together took it for a ride.
Harry
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1974 911 2.7L coupe with sunroof |
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07-16-2009, 01:58 PM
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Almost Banned Once
Join Date: Feb 2009
Location: Adelaide South Australia
Posts: 38,527
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Quote:
The theory is it helps the rocker cover gaskets seal as they have a chance to "mould" to the covers before being heated for the first time. Apparently once the gaskets are heated for the first time they loose some of their compliance.
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- Peter |
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07-16-2009, 03:34 PM
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Formerly known as Syzygy
Join Date: Mar 2008
Location: Calgary, AB
Posts: 4,420
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That kinda makes sense...
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Kevin 1987 ROW coupe, Marine blue, with a couple extra goodies. The cars we love the best are the ones with human traits, warts and all. |
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07-16-2009, 04:06 PM
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Interesting,...look to hear from the P-wrenches here on this one ...never even thought about this one...
..quite interesting. Best, Doyle
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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07-17-2009, 01:29 PM
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just go back and retorqe the covers after its warmed up and cooled back down
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fully disassembled, blasted, customized and restored 75 targa with factory hard top, 993 style turbo ft fenders, steel flares, C2 bumpers and rockers, 82 3.0 sc 9.5/1 engine with PMS flywheel, 964 cams, flowed heads, ssi's short geared 915 w/lsd, polybronze, bilstein,working lambda, modified and highly tuned cis, tensioners, pop valve, backdated exhaust and heater, 2300 lbs. no bolt left untouched. 1970 911E. Nice car but needs a re-do. |
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07-17-2009, 01:43 PM
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Join Date: Nov 2005
Location: CA
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I think it makes more sense to let the car sit over night (cool) before adjust. After adjusted, why need to cool it?
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Fat butt 911, 1987 |
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08-04-2009, 09:42 PM
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75 Porsche 911
bike
1970 porsche E
1974 Porsche 911 2.7L 
