Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

Reply
 
LinkBack Thread Tools Display Modes
Old 08-02-2017, 04:15 AM   #1
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 683
1997 S oil cooler install

I'm about to install an S oil cooler on my 97 2.5 and seem to remember the 97 Boxsters needing an adaptor to allow the S cooler to fit (other years don't). I've searched and can't find any reference to this though, am I going crazy here?
__________________
1997 2.5 Boxster NASA Time Trial track car
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 08-02-2017, 07:40 AM   #2
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,079
Many of the early 97's used an adaptor plate underneath the oil cooler that the later cars did not use, and the OEM oil cooler also lacked the air purge line coming off the cooler and going to the coolant tank in the boot.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 08-02-2017, 08:30 AM   #3
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 683
Quote:
Originally Posted by JFP in PA View Post
Many of the early 97's used an adaptor plate underneath the oil cooler that the later cars did not use, and the OEM oil cooler also lacked the air purge line coming off the cooler and going to the coolant tank in the boot.
Thanks, so as long as I remove the adaptor plate I'm fine?
__________________
1997 2.5 Boxster NASA Time Trial track car
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 08-02-2017, 10:28 AM   #4
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,079
Quote:
Originally Posted by truegearhead View Post
Thanks, so as long as I remove the adaptor plate I'm fine?
I do not think that you can do that. I believe the early 2.2L had a different mounting layout than the later engines that did not use the plate ( I have not seen one of these in several years).
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 08-03-2017, 06:53 AM   #5
Registered User
 
Join Date: Apr 2014
Location: Chicago
Posts: 95
I installed a "S" cooler on my '97 2.5 (tip tranny). I had to use the adapter plate (which was not originally on the car - had to purchase it plus the cooler). The new cooler has the vent on top and the '97's do not have a connection for it so I simply plugged the vent (used a rubber plug and hose clamp) that has worked for 2 years including some track time and all is good. I am not sure the addition of the "S" cooler really helps much - it is not much larger than the stock unit (at least on my '97 tip). It might help if your original cooler is clogged or comes from a car that was neglected.
brewerbry is online now   Reply With Quote
Old 08-03-2017, 08:02 AM   #6
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 683
The picture below shows a 1997 oil cooler vs an S oil cooler. There doesn't seem to be that much of a difference. Is the 1997 oil cooler larger?
__________________
1997 2.5 Boxster NASA Time Trial track car
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 08-15-2017, 08:15 AM   #7
Registered User
 
Lemming's Avatar
 
Join Date: Apr 2016
Location: B'ham, AL
Posts: 219
I added the S cooler to my '99 with a '97 engine and the adapter was necessary. I to plugged the vent line with no problems to date.
__________________
Tim
1998 Boxster (daily driver)
1999 Boxster (SPB)
2015 Boxster (For Sale??)
CDI Alabama Region PCA

Last edited by Lemming; 08-15-2017 at 12:16 PM.
Lemming is offline   Reply With Quote
Old 07-03-2019, 12:59 PM   #8
Motorist & Coffee Drinker
 
78F350's Avatar
 
Join Date: Jul 2014
Location: Oklahoma
Posts: 2,203
Garage
Question More '97 differences

Putting a 1997 engine in an '01 and I ran across a difference I didn't expect. In the 2001, there's a hose that goes from the coolant tank to the oil cooler. In the 1997 that hose goes to a hard-line that the front of the engine under the AC compressor. That hard-line does not exist on the '01.

I plan to put an "S" oil cooler on the car. What is the best practice?
I'm thinking of:
  • Swapping the cover from the '01 onto the '97 engine where the hard line connects. (Eliminate the hard-line since it has some internal corrosion)
  • Redirecting the hose that connected to the hard-line to the top of the new "S" cooler.
  • I still need to get a look and see what the status is of the adapter plate on this engine...
  • Replacement O rings ...these: 2 (35 X 4 mm), 2 (26 X 3 mm)

    For install will the "S" cooler fit under the intake easily? Anything need to be moved or loosened?
Pics:
Hard-line connection under '97 AC

Blank cover on '01

2001 Oil Cooler (Likely full of debris from #2 rod failure)

Cooler currently on '97
__________________
I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.

Last edited by 78F350; 07-03-2019 at 01:44 PM.
78F350 is offline   Reply With Quote
Old 07-03-2019, 01:56 PM   #9
Registered User
 
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 5,079
The reason Porsche added the line from the top of the cooler to the surge tank in the trunk is that the oil cooler is the highest point in the cooling system, and tended to collect any air bubbles in the system, reducing the cooler's efficiency. Adding the line prevented that from happening.
__________________
Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
JFP in PA is offline   Reply With Quote
Old 07-03-2019, 05:09 PM   #10
Motorist & Coffee Drinker
 
78F350's Avatar
 
Join Date: Jul 2014
Location: Oklahoma
Posts: 2,203
Garage
Thanks JFP, that sounds like a good reason to move that line from under the AC to the top of the new oil cooler.
__________________
I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.
78F350 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 04:53 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page