Lets talk oil filters
 

Last year I built a new 502 for my Baja, I still have a Mercruiser 35-866340K01 filter on it, is their a larger capacity filter I could run on it? Its a lake boat they does not see long hard blast at all so I might be overthinking this but figured I would see what you guys are running on the Mercruiser big blocks.

how big you want to go? :D
heres a 2qt filter oil filter
Just do a search for 13/16x16 oil filter and you'll get all kinds of listings. May be easier to go to NAPA and have the guys do a search for ya :D

Not sure just I thought the filter on it is kinda small for 509 Cid engine but maybe not. Im sure I am overthinking this.

If you want a 2qt with a bypass valve and anti drainback valve, then the Moroso 22461 is good.

If you want a 2qt without the bypass or anti drainback, then the AC Delco PF932 is good.

Both filters are in the high 20s for micron rating and flow well.

If your filter is mounted with the flange down, then I'd go with a filter that has an anti drainback.

What do you think about WIX filters?

Wix are good I think. I run a Wix 33405 fuel filter on my own boat.

The thing that I don't like about the Wix oil filters are the racing ones that have a 61 micron rating and people use them on their non racing engines. I feel you need more filtration than that on an engine that isn't getting the oil changed between motos etc. Not the filter's fault, just the application people choose to use it in I don't think is right often times.

I like the WIX but now a days its like anything else...depends on where its made.
Buddy of mine sent me a pic the other day of his NAPA gold filter...one was made in the US the other in China!
I know Wix makes the NAPA gold filters so it kinda surprised me...i went home and looked at my stash of filters for my truck...all WIX...half made in US the other half made in Mexico! .....you just cant win now a days! :(

I would assume if I buy it off Amazon it wont be the US made that's for sure. Unreal that we cant get anything of quality anymore! I should just put the mercruiser 866340K01 back on, I never had an issue and its not a race boat.

Ok lets change the subject since this is also on my mind, spark plugs. I have AC MR43TS plugs in it now but I read the AC Rapid-fire #1 platinum plugs are better. What are your thoughts on going to a platinum plug?

I used those Wix racing filters for a long time and my bearings never looked very good .. is it becaus it`s a "racing filter" with 61 microns? Maybe, maybe not.
Engine masters did an episode and the K&N had best flow and filtration, they stopped making it in my size.:mad:

New engines get 20 micron filters.. I found one that is quite long lol


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If I remember correctly on that episode none of the filters were really worth a dam they all bypass to quickly. I never had an issue with the factory mercruiser filter.

I used the same K&N HP-5001 as well. Stupid they were discontinued...

I'm switching to these though as I refuse to use the WIX Racing ones. This "racing" version is built better than the Fram stuff we are used to from what I've read and comparable to the K&N.

Fram HP6A Fram HP Series Oil Filters | Summit Racing

The Fleetguard Stratapore oil filters are amazing.

Keeps my Cummins Common Rail diesel engine oil really clean...never gets non-transparent before my 5k+ mile oil change. With 12+ quarts in the pan/filter.

Not sure if any thread sizes would fit, but surely a custom setup would bolt on easily.

Cat oil filters may be another option.

Most guys are changing oil at 25hrs? Anyone ever do any sampling at the 25hr mark?

System 1 re-usable wire mesh oil filters work well. Get to inspect any potential metals etc. They have various micron screens.

After getting screwed with an oil bypass passing metals, I lean towards a well setup oil system with no bypass. Twin filters or a one large enough to take the pressure is essential.

I've tested oil at several intervals below 25hrs. What I found on my 3.3 whipple engine is that the fuel dilution just begins at around 20+ hours, so I change oil at 20hrs. Metals and contaminants have been very clean with K&N, Moroso, and the Delco filters I've run.

I have been running double Napa Gold 1515 filters on a set of 509s. Recently pulled engines with close to 800 hours. Bearings were in near new condition. Oil changed at 50 hour intervals.

Not bad!

I use a K&N HP-3002 and have been very pleased with it.

Good info! Assuming FI with the 3.3?

What are your F/A ratios like?

Yes it's a fuel injected 3.3L whipple. A/F ratios run in the high 12s to 13 at idle and work their way down to about 11.5 at WOT 8lbs of boost.

I assume it is a 13/16 16 filter and screws right on to the factory remote oil filter housing? Is the Napa gold a WIX filter?

Yes, napa gold is a wix filter.

I use a lot of filters. For work and myself. Mostly Wix.

Here's a concerning one from a few weeks ago.

Look inside. It’s a new, not installed one. :(

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Maybe time to go with a changable element style filter.

That is rough.

nice catch on that one quality control does not exist anymore

SB, where was that filter made? It seems like the ones i have that are US made all have the black seals in them...yours has red....my buddy that had the Napa Gold from China had the red seal in it as well....

Found this doing a search, a filter list for the 496 HO & 502mag. I assume the 454 would also be the same? The funny part is the Mercruiser filter on my 502 Mag remote housing isnt in this list, it is a 35-866340K01

Fram: PH5, DG5
Purolator: L34631
Purolator Pure One: PL34631, PL36461
AC: PF1218
Motorcraft: FL-12A
Napa: 1060
Wix: 51060
Baldwin: B1428 (top rated)
K&N: HP3002
Amsoil: SDF-24
Hastings: LF279
Fleetguard: LF3679
Mercruiser: 35-802885Q
Champ/Luberfiner = PH454
Mighty = M454
Mobil = MO5313
Mobile 1: M1-302, M1-111
Kendall: K31
Penzoil: PZ45
Quaker State: QS5
Shell: S63, SH38
Texaco: T38, T38B
Warner: PH1218
Royal Purple = 10-454
Service Champ = OF5313
Valvoline = VO65
STP: S01218, S8873
Valvoline: V056
Warner = WPH454

yes they all have the same thread size for the filter 13/16-16 the only difference is the height of the filter. Im not sure if they put the small ones on because of some bean counter figured its the smallest cheapest they can fit on and still get away with enough filtration or what.

I have spaced my filter housing up so I have plenty of room for a longer filter. I need to start cross referencing filters to try and find dimensions. I am thinking Pure 1, baldwin and Wix/napa gold.
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Wally,

I picked up a K&N HP3002 for mine. Any way to tell where it's made, if they might be made "elsewhere"?

Thanks. Brad.

I heard recently from someone I consider very reliable that Baldwin was the company that was manufacturing the filters for brands like K&N and others, and Baldwin decided to no longer do that. This is why we are seeing revised part numbers and certain filters from K&N being discontinued. Because of this, we are going to be seeing many of the performance brand name filters being produced in China going forward. Filters will be produced to the brand's spec so it doesn't necessarily mean the filters will be of bad quality. We will see.

Example - The K&N HP3002 is now a HP3003. I haven't cut open the new one yet to see what it looks like. I like to do that to filters prior to running them.

Delete. Didn't see 87Mirage's post before typing.

Box says "Made in Mexico", to answer my own question from above.

Thanks. Brad.

All pretty good wix a good product!
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Twin filters are mounted remotely. I assume they will fit most, if not all remote filter housings

Good question. I’ll try to remember to check. See if we can figure out some relationship to where problem filters cone from.

As another note, i use tons of Wix 51061 (napa 1061) and wix 51069 (napa 1069) every year for 30+ yrs now. I have had 5 this year, have the large rubber oring come off filter and stay on block and remote filter adapters. Yeh, always check, but never run into it until this year.

I barely use the xp series. Usually only when water or coolant contaminated oil and flushing out. So, made me feel more uneasy about the xp series…ie: finding that issue with one.

Are you raw water cooled?
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What engine temps are you running?
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​​Seems like an awfully short run time for fuel dilution. 20hrs.

It is closed loop cooling. It would run coolant temps up to 170 so I've installed a larger heat exchanger over the winter that I have yet to try. Whipple wants it to run around 150.

The oil would get up to 220 before the cooler so I have installed a 13 plate box cooler over the winter with a thermostat. We will see how it does soon.

When I'm talking beginning to get fuel dilution it's a very small amount. We're talking viscocity @ 100C ASTM D445 from 13.6 dropping to 13.0.

Damn.. I did not realize this. Just put a WIX racing filter on mine yesterday.. Going to be swapping it out soon now due to reading this.

dupe post

I cant find the article now but read a reply, from possibly WIX or some other filter company, that stated the racing filters are not to used on daily use engine. Basically the larger micron rating is to help oil flow in race engines..they only care about trapping larger particles since the engines get torn down and rebuilt more often. So for daily or long term use they say to stay with the standard filters.
Considering that most boaters don't really put hundreds of hours on a boat per season and change the oil every season i don't see a problem using the racing filters. A human hair is at 70 microns....a grain of table salt is 120 microns. So a racing filter at 61 microns is plenty good in my eyes being changed once a year.

Agree Ive ran the 51060R for years on my boat engines we might not be racing but a constant load @ 70 for 25 miles I want good flow

That's all I ran for 15 years and when I tore the engine down it appeared I could've run it for another 15. Seeping head gaskets between cylinders was all I found.

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