Full flow/remote oil filter on single relief engine?

I want to put a remote oil filter and possible a remote cooler on my car. In years past, I was told something about single relief engines are not recommended to do full flow conversions on. Anybody know anything about this.

KW.... If you plan on running an external oil cooler as the only oil cooler, its not a problem.... I used to do this all the time on 40 horse engines.....

My plan was to simplify oil changes, and also open up my options for oil coolers. I do not plan on getting rid of the stock cooler. I was going to run a CB4 I think, oil pump that already has in/out lines for your plumbing.

I'm running the original internal dog-house cooler, an external cooler with fan, and an external oil filter. I also have an additional thin-line sump for extra capacity. Total oil capacity >6 qts.

Single or dual relief?

My engine was built by the PO back in the late 90's with a single relief case. He used an EMPI stock cooler by-pass adapter that sends oil to the cooler and back. I have no stock cooler. He also used an EMPI "full flow" oil pump cover with an oil filter boss on the end for a spin on filter. I've heard that these don't filter all of the oil, but most of it I guess. I have 17,000 miles on this set-up so far. My oil temps rarely reach 210, ever. Don't know why they don't or can't be full flowed. I guess that's how they did it back in the day with these cases.

~WB

K - I honestly don't know the difference as this is the first time I've heard that term. There's only one inlet/outlet setup on the engine for all of the externals, so I'd say single relief, if I interpret the term correctly.

Lane - A single relief case has only one pressure spring on bottom - dual has 2. Each has a nickel size screw in cap with a big straight screw driver slot These face down to the ground. A '71 up engine would be dual relief --- and have bigger oil passages.

Lane's engine is a dual relief..... CB Perf. 1915cc from around 2002 / 3. Right Lane? My Spyder used the same engine...

You're right, Leon, except for the date. Mine's from 2006.

These kind of sites often supply overly simplistic info but can give easy to understand descriptions. Here's one for the single vs. dual oil pressure relief considerations; http://www.ehow.com/info_7945876_single-dual-relief-vw-engine.html

and here's another that deals with full flow filtration out of the pump cover: http://www.dune-buggy.com/techtips/fullflow/

sounds like Gene Berg and braided stainless lines ought to be part of a plan, KW.

Definitely , thanks!

A local VW shop suggested one of these... He's had good luck with these in the past. He said go with pump #3, as that is in my case's year of production.
http://www.cbperformance.com/catalog.asp?ProductID=195

Also, is a puller required to do a pump swap?

The pump with the integrated filter was standard on late Mexican VWs..... Should work great if all you want is to add a filter capability.... A puller can make it easier and lessens the chance of damaging the case / pump mating surfaces....

Pump #3 is good for adding the filter and external oil cooler....

I want to adds cooler, I'm running 230 in 80 degree weather. I have all the tins, fan isn't clogged, etc. Tried Brad Penn oil.. Fins on engine are clean. I'm looking for cooling, filtration, and a little capacity never hurts!

I don't think you'll need a puller for the pump - once the cover is off the gears slide right out. Maybe a magnet to make sliding them out easier. The hardest part of it can be getting your crank pulley off.
You want a 30mm socket for the crank pulley nut, and it's nice to have one of those little flywheel locker things.

I'm liking those Maxi-pumps. They didn't have such goodies in my VW days 40 years ago. Ya, #3 easiest to use for us, but no hoseclamp oil lines to a filter - that's a Murphy failure - it can fail so it will.

Ok... Some guys talking about using a puller, etc. That's what I wasn't sure about. From my understanding, these style pump covers are pulling pre pressure relieved psi, and can be upwards of 200psi until it's warm. So I'm definately going braided lines, and AN fittings...

KW..... Its not just "an oil pump cover". Its a complete pump unit that cannot be used eccept as a complete unit, or terrible things happen to your engine..... How do he know???

I know it's a full kit Leon... It comes with both gears , body, and cover.

Maybe Leon was concerned that Ken above thought he could just pull the gears out and reuse the original body.

The body has to be replaced too. A puller would make that easier.

I found a puller online, but it doesn't make sense. What does it grab? And what does it pull against?

It should look like a piece of steel channel with a threaded rod through it connected to a flat steel plate / bar.... With the gears out of the pump, the plate / bar slips inside the pump body and the channel straddles the pumps outter diameter.... As you tighten the nut on the rod, the pump is pulled from the engine case.....

Does the bolt screw into something down inside? What does it grab? I'll order one today. Thanks!

The plate / bar, when inside the pump body, will engage parts of the body casting when rotated to the correct position..... Its not complicated when you have the pieces in hand....

You pull the gears out, then put the smooth ends of the T into the inlet and outlet holes of the pump, put the threaded end through the hole in the U channel with the two ends of the U channel against the block and screw on the nut.

This shows one being used: http://www.craigsteffen.net/blog_archive/2009_03_01_archive.php

Yeah cool, I ordered one today. I'm only guessing what cam I have, dished or flat... So until I pull that pump... I won't know. If CB would allow returns on pumps, I'd just send the one back that I don't use! Ha! Anyway, I'll be full flow with a small cooler soon.

I guess my post wasn't so clear. I was thinking about how I used to pull my pump using my fingers once I'd figured out a magnet to get the gears out. A newer engine or closer tolerances could make a puller for the pump a plus but mine used to practically fall out once the oil suction let go of the gears.

Sorry about that KW.

All good!

Getting pump out is real easy. Take off the four nuts on the pump cover and split the case...it'll fall right out. Well that's how mine came out when I got to explore my damaged cam mess. KW..when
you get a chance could you update us on your choice of filter/cooler system please? I've got my little brain maxed out on engine internals right now. Thanks.

I am at least going to put a CB #3 pump, remote filter adapter, and filter..... That should give me 1 more quart. I will see where the temps go with that, and if they are still sketchy, I can easily plum a cooler.