03-30-2025, 02:37 PM
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#1
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,981
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Did you replaced the tensioner pads already? Then you should be ready to swap the engines right? :-)
Last edited by Gilles; 03-30-2025 at 02:41 PM.
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03-30-2025, 05:17 PM
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#2
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Registered User
Join Date: Apr 2023
Location: Oregon
Posts: 534
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Quote:
Originally Posted by Gilles
Did you replaced the tensioner pads already? Then you should be ready to swap the engines right? :-)
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I was planning to put in the rear main seal next, but I've been psyching myself up to do the cam chain wear pads — reading, watching videos, making sure I've got everything I'll need, wondering if I should replace the chains** at the same time. Before I put a ratchet on the cam covers I want to be absolutely certain I understand each step. I'm getting close.
**On a 39K-miles engine I would expect the cam chains to have minimal wear, but then, chains are relatively inexpensive. Still, where do you stop throwing new parts at it? Everything I'm doing to this engine I regard as critical stuff, including replacing the motor and transmission mounts. Sure, it would be nice to replace the AOS; water pump, coils and plugs, oil pressure sending unit and sensor, fuel pressure regulator, crankshaft position sensor, positive crankcase ventilation conduits, etc., etc. Then I could drive to the poorhouse in style! After I make a decision on the cam chains I think I'm going to draw the line there. It's getting close to a year since I've driven my baby. I'm jonesing to get it back on the road.
__________________
2000 986 base
Arctic Silver/black
2.7 liter
5-speed manual
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03-30-2025, 06:21 PM
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#3
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Registered User
Join Date: Sep 2018
Location: Laval QC
Posts: 836
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Quote:
Originally Posted by LoneWolfGal
... **On a 39K-miles engine I would expect the cam chains to have minimal wear, but then, chains are relatively inexpensive. Still, where do you stop throwing new parts at it? Everything I'm doing to this engine I regard as critical stuff, including replacing the motor and transmission mounts. Sure, it would be nice to replace the AOS; water pump, coils and plugs, oil pressure sending unit and sensor, fuel pressure regulator, crankshaft position sensor, positive crankcase ventilation conduits, etc., etc. Then I could drive to the poorhouse in style! After I make a decision on the cam chains I think I'm going to draw the line there. It's getting close to a year since I've driven my baby. I'm jonesing to get it back on the road.
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Of all the stuff you mention I would only consider changing the AOS simply because it is a lot easier to do with the engine out. Water pump, coils, plugs, CPS etc can be changed when and if necessary with the engine in the car. Chains should be fine.
__________________
Grant
Arctic Silver 2000 Boxster S - bought with a broken engine, back on the road with the engine replaced
Green 2000 Boxster 5-speed and 1978 928 auto
1987 924S 5-speed (Sold) - Blue 2000 Boxster 5 spd (Sold)
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03-30-2025, 07:18 PM
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#4
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Registered User
Join Date: Apr 2023
Location: Oregon
Posts: 534
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Quote:
Originally Posted by elgyqc
Of all the stuff you mention I would only consider changing the AOS simply because it is a lot easier to do with the engine out.
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It would have to be an aftermarket AOS, because the chances I'd shell out $1650 for a Genuine Porsche AOS are practically nonexistent. I much prefer Amazon's $55 alternative:
https://www.amazon.com/Bapmic-99610702304-Separator-Crankcase-1997-2002/dp/B01MZAEBC6/
__________________
2000 986 base
Arctic Silver/black
2.7 liter
5-speed manual
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03-31-2025, 03:44 AM
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#5
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Registered User
Join Date: Jan 2019
Location: PA
Posts: 1,720
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Quote:
Originally Posted by LoneWolfGal
It would have to be an aftermarket AOS, because the chances I'd shell out $1650 for a Genuine Porsche AOS are practically nonexistent. I much prefer Amazon's $55 alternative:
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Where did you get the $1650 price? Pelican has a genuine Porsche for $192.
https://www.pelicanparts.com/More_Info/99610702304.htm?pn=996-107-023-04-M100&bc=c&SVSVSI=0784
__________________
2002 Boxster Base - Arctic Silver - Tiptronic
2010 Subaru Forester
1980 Ford C-8000 Custom Cab Emergency-One Fire Truck
__________________
"I never lose. I either win or I learn." -Nelson Mandela
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03-31-2025, 06:36 AM
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#7
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,614
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Quote:
Originally Posted by LoneWolfGal
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You won't be so happy when it dies after two weeks. We only use the factory part.
Sunset Porsche out in you neck of the woods has them for $156.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-31-2025, 08:58 AM
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#8
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Registered User
Join Date: Apr 2023
Location: Oregon
Posts: 534
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Quote:
Originally Posted by JFP in PA
You won't be so happy when it dies after two weeks. We only use the factory part.
Sunset Porsche out in you neck of the woods has them for $156.
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I can't seem to find that AOS at Sunset searching for "AOS" and "air oil separator." (I'm not having much luck searching for parts, obviously.) I will go with factory parts whenever possible. Except, for example, when they want $265.48 for an "air tube," and that's with Sunset's $22.59 discount:
https://www.******porscheparts.com/oem-parts/porsche-air-tube-99611311755
(Pelican won't permit links to competitors' products, so replace asterisks with "sunset.")
__________________
2000 986 base
Arctic Silver/black
2.7 liter
5-speed manual
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03-31-2025, 10:42 AM
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#9
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,614
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Quote:
Originally Posted by LoneWolfGal
I can't seem to find that AOS at Sunset searching for "AOS" and "air oil separator." (I'm not having much luck searching for parts, obviously.) I will go with factory parts whenever possible. Except, for example, when they want $265.48 for an "air tube," and that's with Sunset's $22.59 discount:
https://www.******porscheparts.com/oem-parts/porsche-air-tube-99611311755
(Pelican won't permit links to competitors' products, so replace asterisks with "sunset.")
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Give Luke and the crew at Sunset a call, they will hook you up at reasonable $.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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03-31-2025, 09:21 AM
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#10
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,981
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Quote:
Originally Posted by JFP in PA
You won't be so happy when it dies after two weeks. We only use the factory part. Sunset Porsche out in you neck of the woods has them for $156.
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Luke at Sunset is a gentleman!
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03-31-2025, 10:00 AM
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#11
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Registered User
Join Date: Apr 2021
Location: Bay Area
Posts: 205
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AOS is part # 996-107-023-04 I would also order one of these as it makes installing the lower hose clamp much easier - 999-512-630-00
__________________
'98 Boxster 986
'87 911 Carrera Cabriolet
Last edited by elav; 03-31-2025 at 10:08 AM.
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