Clean your ISV!!!!
Rennlist Member
Joined: Sep 2008
Posts: 608
Likes: 27
From: Alabama '88 928 Automatic
It's just a BMW Bosch part.
Bosch 0 280 140 509
BMW 13 41 1 286 065
$99 here: http://www.ecrater.com/product.php?pid=2838405
$140 new here: http://store.autopartsliquidations.biz/0280140509.html
TIP: type in your part # on Google.com for a quick peak at competing prices.
Race Car
Joined: Jun 2002
Posts: 4,269
Likes: 25
From: Alabama
It's just a BMW Bosch part.
Bosch 0 280 140 509
BMW 13 41 1 286 065
$99 here: http://www.ecrater.com/product.php?pid=2838405
$140 new here: http://store.autopartsliquidations.biz/0280140509.html
TIP: type in your part # on Google.com for a quick peak at competing prices.
Bosch 0 280 140 509
BMW 13 41 1 286 065
$99 here: http://www.ecrater.com/product.php?pid=2838405
$140 new here: http://store.autopartsliquidations.biz/0280140509.html
TIP: type in your part # on Google.com for a quick peak at competing prices.
Nordschleife Master
Joined: Apr 2006
Posts: 8,936
Likes: 3
From: theporscheconnection.com
autozone also sells this thing and it doesnt say its a Bosch part, but when i got mine last year it was sure enough "Bosch"
I think i paid like $160 for mine from autozone, check the website.
I think i paid like $160 for mine from autozone, check the website.
Rennlist Member
Joined: Sep 2006
Posts: 1,555
Likes: 0
From: Oxford, CT
Good tips! Especially for the cheap suppliers!
Mine was just replaced - the old one was oxidized (it's aluminum, right?) so badly nothing seemed to move. I haven't tested it yet, but I will just to see (I know it wasn't doing much). The mechanic said it looked like the engine V was full of soapy water at some point (wasn't me), which may have caused the oxidation.
I think the part should have been designed to mount somewhere more accessible - it's so critical and such a common fault (over time) that it's just cruel to bury it like they did. On the other hand, once you've replaced it, I wouldn't bother moving it - it really is a 15-year part.
I've got big butcher's hands, so I can't get more than a couple of fingers under the intake. Maybe I should have a kid after all... just so they can fix the things I can't get to.
Mine was just replaced - the old one was oxidized (it's aluminum, right?) so badly nothing seemed to move. I haven't tested it yet, but I will just to see (I know it wasn't doing much). The mechanic said it looked like the engine V was full of soapy water at some point (wasn't me), which may have caused the oxidation.
I think the part should have been designed to mount somewhere more accessible - it's so critical and such a common fault (over time) that it's just cruel to bury it like they did. On the other hand, once you've replaced it, I wouldn't bother moving it - it really is a 15-year part.
I've got big butcher's hands, so I can't get more than a couple of fingers under the intake. Maybe I should have a kid after all... just so they can fix the things I can't get to.
Thread Starter
Race Director
Joined: Sep 2004
Posts: 16,271
Likes: 81
From: Stockton, CA
Dwayne
I just used a 12V jump pack...so I am sure there was plenty of amps behind it and it still was stuck before I cleaned it.....
Figures its $150 AFTER I paid nearly $300.....oh well....it works great now!
I just used a 12V jump pack...so I am sure there was plenty of amps behind it and it still was stuck before I cleaned it.....
Figures its $150 AFTER I paid nearly $300.....oh well....it works great now!
Nordschleife Master
Joined: Apr 2006
Posts: 8,936
Likes: 3
From: theporscheconnection.com
at least it works though now right
Intermediate
Joined: Jul 2005
Posts: 41
Likes: 0
ISV
The ISV may be my problem with idle surge I found a site Imparts Online shows the bosch # 0280140509 for 114.00 ( shows it is for 1989 BMW 525I)
AutoZone shows the part for 87 S4 139.99 & 166.99 for BMW...interesting!
Tom Taylor 87 S4
AutoZone shows the part for 87 S4 139.99 & 166.99 for BMW...interesting!
Tom Taylor 87 S4
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Joined: Jan 2003
Posts: 16,948
Likes: 1,059
From: Double Oak, TX
Very interesting -
85 to 86 ISV is 928 606 161 00 = Bosch 0280 140 509 - $125 my price
87 to 95 ISV is 928 606 161 01 = Bosch 0280 140 515 - $289 my price.
So what is the difference between the 161 00 & 161 01 that costs $164 ????
Roger
85 to 86 ISV is 928 606 161 00 = Bosch 0280 140 509 - $125 my price
87 to 95 ISV is 928 606 161 01 = Bosch 0280 140 515 - $289 my price.
So what is the difference between the 161 00 & 161 01 that costs $164 ????
Roger
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Rennlist Member
Joined: Aug 2005
Posts: 1,371
Likes: 3
From: Muncie, Indiana
As I recall, on DR's supercharged engines the ISV is indeed relocated to a much more accessible (sensible) location. I'm also advised that it is not impossible - though difficult- to remove the ISV and relocate on an S4 without removing the inlet manifold. Confirmation on either of these impressions would be welcome.
Rod
Race Car
Joined: Dec 2003
Posts: 4,477
Likes: 5
From: Atlanta, GA
Dan
'91 928GT S/C
475hp/460lb.ft
Chronic Tool Dropper
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Joined: Oct 2001
Posts: 20,506
Likes: 566
From: Bend, Oregon
It's worth it if that's what's keeping a car from driving.
Figure out that you get 100,000 miles from this part, at $300. Hmmm, long division! OK, carry the six, and it works out to $0.003/mile if my math is correct. Add it to the list of WYAIT maintenance parts.
To the comment that it's cycling multiple times open and closed-- it doesn't. The actuator itself receives a stream of pulses at a fixed frequency OK, but the width of the pulses varies. Wider pulses mean that the valve stays open further, narrower it's open less. The inertia in the mechanism, the spring tension, and the charge/discharge time on the magnet inside are the keys to the way it works.
Figure out that you get 100,000 miles from this part, at $300. Hmmm, long division! OK, carry the six, and it works out to $0.003/mile if my math is correct. Add it to the list of WYAIT maintenance parts.
To the comment that it's cycling multiple times open and closed-- it doesn't. The actuator itself receives a stream of pulses at a fixed frequency OK, but the width of the pulses varies. Wider pulses mean that the valve stays open further, narrower it's open less. The inertia in the mechanism, the spring tension, and the charge/discharge time on the magnet inside are the keys to the way it works.
Under the Lift
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Joined: Mar 2002
Posts: 18,648
Likes: 52
From: Buckeye, AZ
It's just a BMW Bosch part.
Bosch 0 280 140 509
BMW 13 41 1 286 065
$99 here: http://www.ecrater.com/product.php?pid=2838405
$140 new here: http://store.autopartsliquidations.biz/0280140509.html
TIP: type in your part # on Google.com for a quick peak at competing prices.
Bosch 0 280 140 509
BMW 13 41 1 286 065
$99 here: http://www.ecrater.com/product.php?pid=2838405
$140 new here: http://store.autopartsliquidations.biz/0280140509.html
TIP: type in your part # on Google.com for a quick peak at competing prices.