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930s rule the wasteland
 
h20cooled7's Avatar
 
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timing issue 80 930

im trying to adjust my timing and when i hook the vacum back on the advance it loads up and stalls. whats up? let me check the firing order on my cap.

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1980 930 Turbo
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Old 10-27-2007, 02:21 PM
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930s rule the wasteland
 
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do i plug the vacum line or just leave it at atmoshere when i remove from advance?
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1980 930 Turbo
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Old 10-27-2007, 02:29 PM
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Timing

My repair manual (1978) says that the timing is set with the vacuum hose on, then to disconnect the hose and check timing at 4000rpm. It doesn't say whether or not to plug, but one would assume that it should be pluggged, otherwise you would have a vacuum leak.
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Old 10-30-2007, 08:08 PM
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Is your car usa, cali, or euro version?

For usa keep it installed, for Euro take it off, for cali...I would have to check my manuals again. Make sure you set the static timing before you start the engine. Static timing is set by putting the engine at TDC and making sure the distributor rotor is pointed at the notch towards the back on the body of the distributor. You may even have to re-index the distributor by pulling it out and move the rotor so the next notch on the gear is selected.
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John A.
1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.)
05 Boxster S: For the Track.
06 Dodge Ram 2500 Power Wagon: Tow Vehicle
Old 10-31-2007, 09:33 AM
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Quote:
Originally Posted by h20cooled7 View Post
do i plug the vacum line or just leave it at atmoshere when i remove from advance?
I have heard of many people having issues when the port is pluggged. I was told to leave it to atmosphere. That is just what I heard though, not fact.
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John A.
1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.)
05 Boxster S: For the Track.
06 Dodge Ram 2500 Power Wagon: Tow Vehicle
Old 10-31-2007, 09:35 AM
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does the dist turn clock wise or counter clock? it is a ROW car.
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1980 930 Turbo
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Old 10-31-2007, 04:24 PM
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all 3.3 turbo rotors turn left (counter)
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John A.
1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.)
05 Boxster S: For the Track.
06 Dodge Ram 2500 Power Wagon: Tow Vehicle
Old 10-31-2007, 04:56 PM
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As per Porsche Factory Manuals (3.3 turbo ROW)

2. Disconnect Vacuum hose at distributor (guessing that means dont pinch)

3.make adjustments with oil temp at 80 degrees. The 30 degree mark on the pulley must stand still 1mm to the right of the notch on the fan housing with engine running at 4000 RPM (1mm = 1 degree on the crank shaft.


Euro Specs: 29 +/- 2 degrees BTDC at 4000 rpm
Usa Specs: 7 +/- 2 degree ATDC at 1000 rpm (+/- 50 rpm)
Japan specs: 15 +/- 2 degrees ATDC at 1000 rpm (+/- 50 rpm)


According to all of this when you get your timing light out, you will have to run the engine up to 4000rpm to get a reading (might need some ear plugs)
Hope this helps.

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John A.
1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.)
05 Boxster S: For the Track.
06 Dodge Ram 2500 Power Wagon: Tow Vehicle
Old 10-31-2007, 05:10 PM
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