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Somatic Negative Optimist
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930 tune-up questions
On my SC I have lots of room because I removed the A/C completely; removed the heater blower, and there is no CAT.
But, this is a 1986 turbo with no room to get at anything. Any pointers on the valve adjustment? The A/C compressor has to be moved out of the way to rest over the rear fender, what else? Timing is ? deg BTDC? What type plugs? Thank you. 
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats.  Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ". 
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09-24-2005, 08:12 AM
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Registered
Join Date: Jun 2001
Location: Sweden
Posts: 5,911
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Remove AC, intercooler and intermediate intake. It takes a while but it isn't too hard.
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Thank you for your time, |
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09-24-2005, 09:24 AM
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Join Date: Mar 2002
Posts: 3,563
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I only use W3DPO in my engine. These are a very cold plug and VERY expensive too I might add, but the best for big boost applications. There are cheaper alternatives though (FR6LDC, W3CS, FR5DTC).
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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09-24-2005, 02:55 PM
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Join Date: Feb 2003
Location: Orange County, California
Posts: 1,257
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In addition to what beepbeep mentioned, I also remove the air cleaner assembly, the smog hoses and diverter valves(if they're still there) and wastegate. It sounds like alot, but if you just commit yourself to removing these extra items the extra time(15 minutes if all goes well) you spend removing them will pay off in MUCH better access for adjusting.
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09-24-2005, 03:23 PM
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Somatic Negative Optimist
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Thanks to all.
This turbo is not mine; been asked to assist in the valve adjust etc. I suspected that the intercooler should be removed and plan to remove as much as possible to make room. Is the valve clearance 0.1mm (0.004")? ? Are the plugs mentioned Bosch? Copper? Timing????5deg BTDC?? Are all of you running a CAT? Anyone with a by-pass pipe? Anyone have SSI's? Thanks.
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats. Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ".
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09-25-2005, 07:15 AM
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Somatic Negative Optimist
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Answers, please.
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats. Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ".
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09-28-2005, 06:31 AM
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Registered
Join Date: Apr 2005
Location: outta here
Posts: 53,677
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Okay, here you go:
Valve clearance is .1mm cold. Specified plugs are Bosch W3DP, or W3DPO, or W280P21. Timing is 26 BTDC @ 4000 RPM, with vacuum control detached and 1 ATDC at 900 rpm with vacuum control attached. Personally, I do not run a cat. I recommend a stock Euro muffler. Not an optimum exhaust layout for performance but pretty much maintenace free. SSIs are for normally-aspirated cars. If the owner of the car wants a different exhaust, many people make them for turbos. Sooner or later, with most of them, you can usually expect to do a little welding on a crack or a leak. |
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09-29-2005, 04:45 PM
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ME 262 (SOLD)
Colibri
Gas Mizer
Mileage King
Dog Bus
