Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 12-10-2018, 02:44 PM   #1
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,944
would you buy a used scavenge pump?

thinking about putting a 987 scavenge pump on my engine. new ones are $500+, but used ones are much less. anything can go wrong with these?

The Radium King is offline   Reply With Quote
Old 12-10-2018, 02:51 PM   #2
Registered User
 
Join Date: Oct 2018
Location: North Cali
Posts: 135
Garage
Quote:
Originally Posted by The Radium King View Post
thinking about putting a 987 scavenge pump on my engine. new ones are $500+, but used ones are much less. anything can go wrong with these?
There`s a new one for quite cheap on ebay:
https://www.ebay.com/itm/For-Porsche-911-Boxster-Oil-Pump-Pierburg-997-107-021-03/151994738376?hash=item236397a6c8:g:3Z4AAOSwsXFZJ~K T:rk:4f:1&frcectupt=true

I`m thinking of buying one too, because mine chewed up some pieces from the chain guide pad and it has some slight damage. Other than that I don`t think these can go wrong. What happened to yours?
Homeoboxter is offline   Reply With Quote
Old 12-10-2018, 03:13 PM   #3
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,944
i'm in the process of putting a 996 engine in my car. this means rotating the intake 180 degrees to fit. once rotated the brake booster connection on the intake is in the wrong place and a hose extension has to be fabricated. on the 987 cars they use a scavenge pump that also has a vacuum pump for the brake booster; i thought about installing one of those instead to keep everything 'factory' looking (and provide more consistent vacuum for the brakes). can't quite justify expense vs benefit if buying new, however.
The Radium King is offline   Reply With Quote
Old 12-10-2018, 05:53 PM   #4
Racer Boy
 
Racer Boy's Avatar
 
Join Date: Sep 2015
Location: Seattle, WA
Posts: 710
If there isn't any obvious wear or damage, I'd buy a used one. There isn't much to them.
Racer Boy is offline   Reply With Quote
Old 12-10-2018, 07:53 PM   #5
Registered User
 
The Radium King's Avatar
 
Join Date: Apr 2010
Location: Canada
Posts: 2,944
my worry is that, if someone is selling a used scavenge pump, then it probably came off a dead engine, so wondering how much metal passed through it before the engine stopped.
The Radium King is offline   Reply With Quote
Old 12-10-2018, 09:31 PM   #6
Racer Boy
 
Racer Boy's Avatar
 
Join Date: Sep 2015
Location: Seattle, WA
Posts: 710
It just pumps oil out of the head, it isn't providing oil pressure for the engine so it isn't as critical as an oil pump (which I wouldn't buy used).

If there isn't scoring on the pump, it should be fine.
Racer Boy is offline   Reply With Quote
Old 12-10-2018, 10:15 PM   #7
Registered User
 
911monty's Avatar
 
Join Date: Oct 2014
Location: California Central Coast
Posts: 1,274
Garage
The rotor pump is a simple design that has been around since the 16th century. It is especially good at pumping oil with entrained gas. They are extremely reliable and would have to be severely damaged with major clearance issues to not work. The pump is only supplying energy/velocity to the fluid for the swirl pots to separate oil and gas, pressure is not required. IMHO used in good condition would be quite acceptable.

Last edited by 911monty; 12-10-2018 at 10:24 PM.
911monty is offline   Reply With Quote
Old 12-10-2018, 11:13 PM   #8
Registered User
 
Join Date: Oct 2018
Location: North Cali
Posts: 135
Garage
It`s easy to disassemble the pump, four bolts need to be removed. Then you can see it for yourself if it`s damaged or not.
Homeoboxter is offline   Reply With Quote
Old 12-11-2018, 05:51 AM   #9
Registered User
 
Join Date: Dec 2016
Location: Clifton, NJ
Posts: 793
Do it. Pretty simple assembly and a little scoring is imho, no big deal

Quadcammer 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 10:47 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