Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > 911 / 930 Turbo & Super Charging Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
sjf911's Avatar
 
Join Date: Dec 2006
Location: Idaho
Posts: 5,624
Garage
Rebuilding turbo oil scavenge pump

Anyone with experience replacing the radial seal on the scavenge pump drive (999-113-246-40)?
__________________
Steve
Sapere aude
1983 3.4L 911SC turbo. Sold
Old 10-25-2011, 02:15 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
After the next project
 
x98boardwell's Avatar
 
Join Date: Sep 2006
Location: Central Valley, CA
Posts: 1,518
Garage
search my username x98boardwell... i did this a couple years ago.
__________________
Previous cars:
1987 930, 1975 914 2.0, 1989 944 Turbo S, 1991 964 Targa, 2004 996TT Convertible, 550-6 Spyder with a 2.4 liter twin plug "S-spec'd motor"

Current cars: 2006 Cayenne TTS, 1991 964 Cabrio, 1997 993TT, 1984 Jeep Grand Wagoneer
Old 10-25-2011, 03:01 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
proffighter's Avatar
 
Join Date: Aug 2007
Location: Switzerland
Posts: 2,179
Garage
First a question : Why do you want to replace the seal?

It's not a big thing. Only removed the driving pin can be tricky, if it is worn a lot. Then you have to treat it, so it will fit through the bore in the shaft.

When fitting the new seal, cover the bore area of the shaft with some tape, over that you can slide the seal without damage.

If you search for the scavenge pump on the turbo forum, you'll find some threads about pin and seal
__________________
Roland

930 Turbo '81 Too many modifications to list
Old 10-26-2011, 01:03 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
sjf911's Avatar
 
Join Date: Dec 2006
Location: Idaho
Posts: 5,624
Garage
Thanks guys. I will likely change to the 930 mechanical scavenge pump. I have one lying around that is of unknown age and function. The gears look healthy and unworn but the seals are of unknown age so I figure it is cheap insurance to rebuild it at this time.
__________________
Steve
Sapere aude
1983 3.4L 911SC turbo. Sold
Old 10-26-2011, 05:46 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
Join Date: Mar 2000
Location: Auburn,In. U.S.A.
Posts: 2,449
Steve,

I recently went through mine. PP has the seals very cheap. Pin is special order
from the motherland. Be sure you check that pin, my car had 52 k miles and the
pin was worn badly. If you need a pin just PM me your address. I found some good
hardened pins and all you have to do is cut it to the correct length with a dremel
and cutting disk.










Cole
__________________
Cole - 80 930 "The Old Sled"
Mods: TurboKraft Custom IC, 934 Headers, GSX 61, Zork, Port Work, SC Cams, Air Mod Fuel Dist Relocated, Water Meth Injection, BL WUR, MSD 6530, Greddy EBC, Synapse Bov, Short 2nd & 3rd with 8:37 R&P, Wevo Shifter, Coupling, and Mounts, MTX-L SSI-4, Big Brakes, Rebel Coilovers, Bilstein Sports.
Old 10-26-2011, 07:06 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Registered User
 
Join Date: Jul 2006
Location: S. Florida
Posts: 7,266
Another interesting thing in Cole's picture of the inside of the scavenge pump is you can see the buildup of coked oil sludge next to the oil inlet and outlet in the pump where the gears don't touch it.

All these cars should have an oil filter in the pressure line from the scavenge pump going to the oil tank to filter out the coked oil particals, especially if using non synthetic motor oil because the cooked oil from the turbo goes back to the oil tank unfiltered and then goes from the bottom of the oil tank through the big S hose back into the case and gets pumped through the internal oil thermostat and then through the engine mounted oil cooler if hot enoiugh or bypassed around if cool and then into the oil galley by the main main oil pump.

At the other end of the oil galley after all the main bearings it branches off through external oil lines and goes to the two cam towers and oil pressure fed carrera timing chain tensioners if using those.

Any coked oil particals bigger than grains of ground pepper will collect and clog the small oil holes in the cam spray bars inside the cam towers and then the cam lobes, rocker arms, and valve stems and guides run with no oil and quickly self destruct... really sucks and that's very expensive to fix.

A good sized cleanable oil filter that flows well with pleated stainless steel element that filters down to 35 microns or somewhere around there eliminates that possibility.
I mounted a system one 35 micron cleanable oil filter in the factory bracket up in the right rear wheel well where the charcoal canister was.
I fit really well there and has been working great for the last 4 years.

Around 5 years ago I put a small cleanable system one 75 micron oil filter in the rubber oil line from the scavenge pump just befroe it empies in to oil tank. It filled up with coked oil particals quickly because of it's small size and the really small particals smaller than 75 microns went right through it. I could see them after the filtering screen when I took it apart to clean it.

The small inline system one 75 micron oil filter I installed first.


And the larger spin on type system one 35 micron oil filter with spin on adaptor I installed in the exsisting charcoal cannister bracket around a year later that has been there for around 4 years working perfectly now. I put a 6mm nut on the small clamping bolt to keep it from possibly coming loose.
As can be seen I used regular 7/16" ID fuel line to plumb it because it's alot cheaper than oil line, there's really no pressure there and it works fine. Took about 9 feet of line to do it.
Old 10-26-2011, 09:45 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered User
 
Join Date: Mar 2000
Location: Auburn,In. U.S.A.
Posts: 2,449
Jim's write up is 100% spot on. With $100 and a couplers hours of your time
you can prevent the possibility of having to pay thousands for repairs.




Cole
__________________
Cole - 80 930 "The Old Sled"
Mods: TurboKraft Custom IC, 934 Headers, GSX 61, Zork, Port Work, SC Cams, Air Mod Fuel Dist Relocated, Water Meth Injection, BL WUR, MSD 6530, Greddy EBC, Synapse Bov, Short 2nd & 3rd with 8:37 R&P, Wevo Shifter, Coupling, and Mounts, MTX-L SSI-4, Big Brakes, Rebel Coilovers, Bilstein Sports.
Old 10-26-2011, 10:41 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
jsveb's Avatar
 
Join Date: May 2007
Location: Norseman territory
Posts: 2,780
Garage
Cole and Jim, I remember reading about this earlier. I think it was Jim who wrote about it. I have searched on the board, but could not find enough information for me to take on this project.
Where do I find information on what to buy, filter, fittings etc.

I know it's slightly OT (sorry) and demanding, but i would really like this mod.
__________________
Jesper
Carrera 3.0 1975
930 1978 OEM Matte Schwartz, ANDIAL IC, BL WUR, SC cams. LMA-3 w. XD-16 and CP transducer
www.stauningwhisky.dk
Old 10-26-2011, 11:14 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Tinkering Pays!!
 
mooney265's Avatar
 
Join Date: Sep 2008
Location: New Orleans
Posts: 1,365
Garage


What is the make/model of this filter? Also, do you have "both" filters installed, or just the one? Thanks!
__________________
LIVN80S - - Red '79 Porsche 930 Steel Slant Nose Conversion [in 1987] w. 46k miles 3.3L; 964 Cams; K27HF @ 1.0 BAR, with Garrettson Intercooler; Rarly Zork; CIS Flowtech Fuel Head & BL-WUR.
Old 10-26-2011, 11:15 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
After the next project
 
x98boardwell's Avatar
 
Join Date: Sep 2006
Location: Central Valley, CA
Posts: 1,518
Garage
I found my thread... actually where I was helping someone else so not quite my thread but here you go. Some of these photo's may help.

Help me identify this oil leak ....

Best of luck,
Bryan
__________________
Previous cars:
1987 930, 1975 914 2.0, 1989 944 Turbo S, 1991 964 Targa, 2004 996TT Convertible, 550-6 Spyder with a 2.4 liter twin plug "S-spec'd motor"

Current cars: 2006 Cayenne TTS, 1991 964 Cabrio, 1997 993TT, 1984 Jeep Grand Wagoneer
Old 10-26-2011, 12:21 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Registered User
 
sjf911's Avatar
 
Join Date: Dec 2006
Location: Idaho
Posts: 5,624
Garage
Thanks guys, I actually have a Moroso in-line oil filter that I plan on using for this build. I had planned to plumb the scavenge back to the oil tank but I like the idea of dumping it back via the breather cover so the main scavenge pump can put it through the spin-on filter.
__________________
Steve
Sapere aude
1983 3.4L 911SC turbo. Sold
Old 10-26-2011, 02:45 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Tinkering Pays!!
 
mooney265's Avatar
 
Join Date: Sep 2008
Location: New Orleans
Posts: 1,365
Garage
Cole,

How did you "plumb" this? Thanks...

__________________
LIVN80S - - Red '79 Porsche 930 Steel Slant Nose Conversion [in 1987] w. 46k miles 3.3L; 964 Cams; K27HF @ 1.0 BAR, with Garrettson Intercooler; Rarly Zork; CIS Flowtech Fuel Head & BL-WUR.
Old 10-27-2011, 06:06 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
Registered User
 
Join Date: Mar 2000
Location: Auburn,In. U.S.A.
Posts: 2,449
Mooney:

I plumbed it into the crankcase vent cover so it will be filtered before it goes back into the oil tank.




















Cole
__________________
Cole - 80 930 "The Old Sled"
Mods: TurboKraft Custom IC, 934 Headers, GSX 61, Zork, Port Work, SC Cams, Air Mod Fuel Dist Relocated, Water Meth Injection, BL WUR, MSD 6530, Greddy EBC, Synapse Bov, Short 2nd & 3rd with 8:37 R&P, Wevo Shifter, Coupling, and Mounts, MTX-L SSI-4, Big Brakes, Rebel Coilovers, Bilstein Sports.

Last edited by cole930; 10-27-2011 at 07:58 AM..
Old 10-27-2011, 07:56 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #13 (permalink)
Registered User
 
Join Date: Mar 2000
Location: Auburn,In. U.S.A.
Posts: 2,449
Jesper:

Do a search for cole930 and look under the results for a thread called
" Need some help here"

That may be the one your refering to.

Also if your going to be doing this you'll need to know scavenging pump and oil tank fitting sizes.

I bought everything on Evil Bay:

Moroso in line filter $42.00
Fittings & adapters aprox. $8 -$9 each all 6 AN compatable
Hose 5 ft. $8

964 107 005 21 = 930 SCAVENGE PUMP (1975-94)
Inlet = M16x1.5 female (banjo)
Outlet = M14x1.5 female in pump with an adapter to male M16
Oil return to 930 tank = M18x1.5 male

The hole in the crankcase vent is 1/2" npt and a 1/2 npt to 6 an adapter screwed into the vent cover.

Cole
__________________
Cole - 80 930 "The Old Sled"
Mods: TurboKraft Custom IC, 934 Headers, GSX 61, Zork, Port Work, SC Cams, Air Mod Fuel Dist Relocated, Water Meth Injection, BL WUR, MSD 6530, Greddy EBC, Synapse Bov, Short 2nd & 3rd with 8:37 R&P, Wevo Shifter, Coupling, and Mounts, MTX-L SSI-4, Big Brakes, Rebel Coilovers, Bilstein Sports.

Last edited by cole930; 10-27-2011 at 05:06 PM..
Old 10-27-2011, 08:07 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #14 (permalink)
Registered User
 
sjf911's Avatar
 
Join Date: Dec 2006
Location: Idaho
Posts: 5,624
Garage
Anyone know if the air pump pulley housing will allow use of the 3.2 cylinder head temperature sensor? It looks like it might not fit. The pump mounted directly to the cam housing seems to clear it but the pulley housing is significantly bigger.
__________________
Steve
Sapere aude
1983 3.4L 911SC turbo. Sold
Old 10-27-2011, 06:25 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 07:31 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization 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
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.