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Garage: Yes but no roof.
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Advice needed: Replacing spark plugs 928S - Spider off?
I'm replacing the spark-plugs of my 1984 928S Euro.
It looks like for the rear ones I need to remove the spider. Is this correct? I have the workshop mauals, but for some reaons (28-67) it only shows something about replacing the 32V. When I remove the 'spider' can I get away with removing only the middle section, or do the 'arms' need to come off as well. I presume if they do I'm going to need to replace the gaskets there as well? Any WYAT for this one (will replace the hoses with silicone ones at the same time). tia Pauwl
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'84 928S (Euro) Automatic Shiefferblaumetallic |
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12-07-2007, 01:17 AM
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Heavy Metal Relocator
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Pauwl,
you do not need to remove the intake to replace the spark plugs, however you may remove the air cleaner and the air cleaner tubes. if you are going to remove the intake (plenum and spiders), you should remove it as one assembly. just unbolt the spiders from the heads, loosen the air hose clamp between the underside of the plenum and the throttle body, and it will lift off in one piece. don't for get to detach the vacuum line on the driver's side of the plenum---the one that you were having trouble with. as far as the vacuum lines are concerned, only remove and replace one at a time. --Russ
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Absence of Evidence, is not Evidence of Absence. Bill Maher 8/4/09--- "I'll show you Obama's birth certificate, when you show me Sarah Palin's high school diploma." |
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12-07-2007, 06:37 AM
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Registered
Join Date: May 2007
Location: Portsmouth, Ohio
Posts: 112
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Pauwl:
No you do not need to remove the spider. You will need a long 3/8 extension and something to pick up the plug when its loose. Look real close with the air inlet tubes off and you will see where the spider bends just enough to get the extension down there. Brian
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1984 928 Auto 2001 525I 1996 Suburban 2500 454ci |
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12-08-2007, 02:28 AM
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Garage: Yes but no roof.
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Thanks all.
4 front ones down, 4 to go. Will indeed be easier to remove air intake , so will do so. Just waiting for rain to stop, and hopefully sun to come out. It's 4 degrees centigrade here, wind, rain. No garage, so just wait... I needed a telescopic magnetic tool to pick up bit falling about the place - don't start this job without one IMHO. I've gone for Copper plugs by the way (Bosch). In Europe they cost $5.80 per piece. I looked into the silver ones, they cost $18.20 a piece. An I read about you guys getting the copper ones at around $1....  And then gasoline at $1.95 per LITRE.... Ah well, at least I live close to the Autobahn and no speed limit 
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'84 928S (Euro) Automatic Shiefferblaumetallic |
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12-08-2007, 06:33 AM
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Banned
Join Date: Mar 2007
Location: Ft.Lauderdale, FLORIDA
Posts: 2,813
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Quote:
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12-08-2007, 10:17 AM
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Garage: Yes but no roof.
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I think the tool was added after my car was made ('84). Don't have it unfortuantely. Still waiting for the sun to come out to finish the last 4
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'84 928S (Euro) Automatic Shiefferblaumetallic |
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12-09-2007, 11:14 AM
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Join Date: Aug 2006
Location: Cincinnati, Ohio
Posts: 1,019
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That tool is a must for getting to the plugs...you should track one down. Gap the plugs to about 0.030" or so.
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Kuhn Performance Technologies, LLC Big Gun: 1988 928S4 Twin Turbo, 5-SPD/LSD 572 RWHP, 579 RW ft-lbs, 12 psig manifold pressure. Stock Internals, 93 octane. Little Gun: 1981 928 Competition Package Twin Turbo, 375 RWHP, 415 RW ft-lbs, 10psig manifold pressure. Nikasil Block, JE2618 Pistons, 93 octane. |
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12-09-2007, 11:36 AM
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Join Date: Dec 2007
Posts: 247
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it is best to take the plastic part of the airbox off, but no need to remove the spider. factory tool is not required.
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12-09-2007, 07:54 PM
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Heavy Metal Relocator
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I haven't used an OEM tool yet----
any standard 13/16" spark plug socket, a universal joint, 12 inch extention, and ratchet---all 3/8 drive--- will get the job done. Gap plugs at .035", not .030 ---Russ
__________________
Absence of Evidence, is not Evidence of Absence. Bill Maher 8/4/09--- "I'll show you Obama's birth certificate, when you show me Sarah Palin's high school diploma." |
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12-09-2007, 09:32 PM
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Garage: Yes but no roof.
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Err.... guys, I'm metric over here  The spark plug socket I'm using is OK, am gapping as per my manual, which (once converted to inches) does land up at .030 (just over). It seems to run fine now. What would happen if the gaps are too small? what should I notice?
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'84 928S (Euro) Automatic Shiefferblaumetallic |
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12-09-2007, 10:39 PM
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Beer
