Air Pump Delete
09-08-2009, 09:51 AM
#17
Craic Head
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It's the fan pulley which is smaller for M319 (higher fan speed). It probably always comes with M570 (rear air), but it was installed on cars delivered to hot climates w/o rear air, too.
20" = 86mm pulley (M319)
21" = 106mm pulley
On the cars I've worked on with a small pulley, I've swapped to the larger pulley for less noise, and drain on the engine, but it's cooler where I live.
Installation wise, I did the same as Mike, slipped on the belt, then installed the upper, driver's side bolt, but since the belt was new, I used a prybar to align the other two bolt holes.
20" = 86mm pulley (M319)
21" = 106mm pulley
On the cars I've worked on with a small pulley, I've swapped to the larger pulley for less noise, and drain on the engine, but it's cooler where I live.
Installation wise, I did the same as Mike, slipped on the belt, then installed the upper, driver's side bolt, but since the belt was new, I used a prybar to align the other two bolt holes.
. Thanks Ken.
09-09-2009, 02:07 PM
#18
6th Gear
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OK, I had to order the new belt so I took them both (20 & 21").
In the meantime I am removing the rest of the air pump components. Any suggestions if something stay or is it ok to remove them all?
One greasy engine.
Belt changed, new crank seal installed, belt tensioner "rebuilt", I still have to clean up the ac compressor and servo pump.
In the meantime I am removing the rest of the air pump components. Any suggestions if something stay or is it ok to remove them all?
One greasy engine.
Belt changed, new crank seal installed, belt tensioner "rebuilt", I still have to clean up the ac compressor and servo pump.
11-03-2021, 12:51 AM
#20
So air pump removal….means bracket needs to stay? Or is euro bracket needed and does porken tensioner negate this? And when you delete cat with xpipe is just unplugging o2 sensor from footwell all that is needed after all plugging vacuum lines?
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knuckles (11-05-2021)
11-05-2021, 03:11 PM
#22
Mines a 81(USA-comp pckge) and just found out porken syst will negate air pump! Now wondering I gues just unplug o2…..besides plugging/capping vacuum lines/fittings.
11-05-2021, 03:25 PM
#24
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You should do as Porsche did, 7A here:
Or..do as this post tells us to:
https://rennlist.com/forums/928-foru...ml#post3264094
Last edited by Speedtoys; 11-05-2021 at 03:32 PM.
11-05-2021, 03:26 PM
#25
Rennlist Member
http://www.autoatlanta.com/porsche-p...section=108-00
#7, 78 and up.
But the race ones that came without one..see the above post.
#7, 78 and up.
But the race ones that came without one..see the above post.
Last edited by Speedtoys; 11-05-2021 at 03:31 PM.
11-06-2021, 06:44 PM
#28
Burning Brakes
Car will not run right with o2 sensor unplugged. That is what control your fuel mixture
11-07-2021, 01:05 AM
#30
Administrator - "Tyson"
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