Mexican oil pump worth it or leave it alone?

[mascrappo]

I have a bone stock 73 and have toyed with installing a Mexican oil pump/filter combo. An older friend of mine, who worked on countless bugs/vans back in the 70's, and is also a 40+ year aviation mechanic, said don't bother and to just change the oil more often if I'm that concerned. His reasoning is it's only 2.5 quarts of oil, and diesel oil is cheap enough. While I can't disagree with it, I like the oil filter possibility. He also echoed the words of wisdom, "if it ain't broke don't fix it".

[volksworld]

even though its stock its still 35 yrs old and odds are very good its been rebuilt at least once....and may no longer have the correct dish cam to mate with the new mexican pump...and you wont find out till you have it apart....and most oil pump pullers require you to pull the muffler...i think i'd leave well enough alone for now

[mascrappo]

[bluebus86]

having a filter is a great idea. it is proven to increase engine life in regards to wear. oil capacity is not the issue, the lack of filtration is. However condider a given two identical engines, except one has a 2.5 quart oil capacity, and the other 6 quarts. Lets say both engines introduce the same, say 0.05 gm of wear materials to the sump, which one has the most contaminated oil. Small sump size wont help, more feequent oil changes can, but it the inbetween the oil change times when that tiny sump of oil builds up contamonates, and around they go, circulating thru one very sad little motor.

Filtration is a highly effective and cost economic way of greatly reducing engine wear, many studies prove this, a small sump engine is no different.

Good Luck, Live Long and Prosper my Bug Friends!
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[airschooled]

Diesel oils don't have the correct additive packages for our engines. Their zinc is excellent but the detergent properties are wrong for an engine without an oil filter…

Filtration is overrated. Source: I took my engine apart with 30,000 miles on it and the main bearings were so tight I reused them… Didn't even hone the cylinders or touch the rings. Everything measured as new, but I DID but new rod bearings in because I got a free set.

You can really feel my holiday spirit, huh?
RobbieBahHumbug
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[Brian]

[Cusser]

I run an oil filter/pump on both my VWs. CB Maxi2. Over 35 years now on my 1835cc engine, almost a year on my 1600cc engine.
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1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297

[Floating VW]

Are there really people out there who don't believe filtering their engine's oil is important?

I had a filter/pump for years on my old mill. It did its job and worked well. They're also cheap, well-made and easy to install. I see absolutely no down-side to using one.

P.S. I've met a few A&P mechanics over the years, and while they do know their business, their advice can be a little suspect at times. The TBO's of the engines they work on are A LOT shorter than what most people would expect to get out of a standard automobile engine, so they tend not to think of "longevity" in the same terms as you or I might. You kind of have to take what they say with a grain of salt. I've also met a lot of old wrenches from the 70's; the same rule applies to them, as well.
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[joey1320]

I've thought about adding an oil filter set-up to my bug. Anyone care to point me in the right direction? I've a '71 Super, stock engine, with an aftermarket degree pulley(if that matters).
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**1971 Super Project
https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0

[volksworld]

are there people out there that dont believe that filtering their oil is important....yes, vw engineers from the 40's to about 2000 when their hydraulic lifters gave them problems....the design of the sump and oil strainer allow heavier particulates to sink to the bottom and not get picked up....most full flow systems out there with big pumps are probably running with the bypass in the filter open untill the oil heats up and thins out, and maybe at hi rpm too unless they're running a pressure relief style pump cover....is an oil filter a good idea? of course it is...but the question here was weather or not to put a mexi pump on a running engine.... its kinda like quitting smoking when you're 70...the damage has already been done...the problem with us "wrenches from the 70's" it that we've been through all this before and realize the can of worms that can be opened when trying to do a simple modification...p.s. a magnetic drain plug certainly wouldnt hurt...oh and i've also had a fresh rebuild seize because a brand new scat pump/filter was machined too small and sucked air on the pickup side....my own damn fault cause i was bench running it without the oil light hooked up

[Cusser]

[joey1320]

[busman78]

CB Maxi filter pump does not play well with a stock muffler that has the return heater tube for the intake on the left side, well the pump fits, the filter doesn't, found that out the hard way.

[joey1320]

[busman78]

Length, even tracked down one of Fram's (spit when you say that word) mini filters, they make one that is like 3" long, will not fit.

[Cusser]

I use a shorter filter L14670 or PH16 with the Maxi2, don't have clearance issues with my quiet-exhaust headers. Yes, I did have to grind down the cover a little on both so the tin would not rub on the crankshaft pulley, as others have reported, but that's a one-time thing (CB should really get with the manufacturer and get this part corrected).

There are numerous topics about which brand of oil filter are "better" than others, but filter factories typically re-brand filters so many brands are produced by the same manufacturer.
_________________
1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297

[joey1320]

Cusser, I remember reading your issue with the fitment and having to grind down the vanes.
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**1971 Super Project
https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0

[busman78]

Here is a picture of the offending tube that keeps the Maxi Pump from being used. Headers do not cause an issue, just the stock tube is in the way.

[Floating VW]

[Brian]