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#4484273 - 08/10/17 04:55 AM Oil filter observation after LIM replacement
dlundblad Offline


Registered: 09/30/13
Posts: 10002
Loc: Indiana
..on my 1997 GM 4.3.

This isn't very scientific, but I found it interesting nonetheless. Both filters are AC Delco PF52's and were ran for about the same time and mileage. 1 week and ~350 miles. Certified conventional 10w30 was used both times.

Let me start by saying my LIM gaskets were leaking since I bought the truck back in March. I knew the job needed done, but they never leaked enough to require a coolant top off or visually contaminate the oil in my 7k of ownership. The job took me a few days, but I took my time and had to work around weather. Not a bad job really and it certainly won't keep me from buying another one.

This was ran right after the LIM replacement. I used shop towels and a shop vac in effort to keep gunk out of the engine, but obviously it was still allowed to get in somehow. I felt better with doing the 1 week runs of oil because a bit of coolant was collecting in the engine as well.




This is the second run of my PF52 and Certified oil combo. Much cleaner. The oil in the can looks cleaner and brighter, but I think that's the difference in lighting. One photo was taken in a garage with florescent lamps and another was taken outside.



Right now, it has a frankenbrew of Certified, Delo 15w30 and QSUD with a Microgard filter. I'll run that a while then go to synthetic something.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4484277 - 08/10/17 05:26 AM Re: Oil filter observation after LIM replacement [Re: dlundblad]
BigD1 Offline


Registered: 08/12/15
Posts: 2575
Loc: NC
Looks like it's fixed! The media in the second picture is a lighter color which indicates to me a short run with clean oil.

Was that the original lower intake gasket? Was the gasket plastic?

Anyway, that's a big job on these engines. Good job!
_________________________
1992 Toyota Pickup--Havoline HM 10W-30--Motorcraft FL-910S

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#4484288 - 08/10/17 05:59 AM Re: Oil filter observation after LIM replacement [Re: dlundblad]
Char Baby Offline


Registered: 05/25/05
Posts: 10017
Loc: ROCHESTER, NY
Just out of curiosity,(no pics down the center tube), were these filters PF52 or PF52e?

Not that it matters for your short OCI's but, I have a PF52e on the Firebird in my signature, and if it looks put together as well as the ones in your pics, I'll be happy! laugh
_________________________
"Retired"
'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'06 Mazda 3i 2.0L
'15 Nissan Altima 2.5 SV

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#4484327 - 08/10/17 06:52 AM Re: Oil filter observation after LIM replacement [Re: dlundblad]
BigD1 Offline


Registered: 08/12/15
Posts: 2575
Loc: NC
Those are ACDelco Classic PF52 not ecore. O'Reilly and Advance still stock them. I just bought one the other day from O'Reilly, and it was made in 2017. Champ Labs is still cranking them out.
_________________________
1992 Toyota Pickup--Havoline HM 10W-30--Motorcraft FL-910S

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#4484578 - 08/10/17 11:05 AM Re: Oil filter observation after LIM replacement [Re: BigD1]
dogememe Offline


Registered: 04/15/17
Posts: 597
Loc: SF BAY AREA, CA
Originally Posted By: BigD1
Those are ACDelco Classic PF52 not ecore. O'Reilly and Advance still stock them. I just bought one the other day from O'Reilly, and it was made in 2017. Champ Labs is still cranking them out.


Make sure you actually look at the filter, as many non-e part number ACDelco filters are using the e-core design. Unless I'm missing something obvious smirk
_________________________
2007 Ford Crown Vic P71 4.6 ~124K Miles, Valvoline SynPower 5W-30, Royal Purple Filter *Daily Driver*
2010 Ford Escape 2.5 ~70K Miles, Valvoline SynPower 5W-30, Wix Filter *Turo Rental Car*

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#4484856 - 08/10/17 03:30 PM Re: Oil filter observation after LIM replacement [Re: Char Baby]
dlundblad Offline


Registered: 09/30/13
Posts: 10002
Loc: Indiana
Originally Posted By: BigD1
Looks like it's fixed! The media in the second picture is a lighter color which indicates to me a short run with clean oil.

Was that the original lower intake gasket? Was the gasket plastic?

Anyway, that's a big job on these engines. Good job!



I am not too sure, but I am guessing they were original given how neglected the poor thing was, but these weren't plastic either. A dead squid is the best way to describe them.

Originally Posted By: Char Baby
Just out of curiosity,(no pics down the center tube), were these filters PF52 or PF52e?

Not that it matters for your short OCI's but, I have a PF52e on the Firebird in my signature, and if it looks put together as well as the ones in your pics, I'll be happy! laugh


These are the non e core filters. I personally wouldn't have considered them if they were.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4484858 - 08/10/17 03:38 PM Re: Oil filter observation after LIM replacement [Re: dlundblad]
dlundblad Offline


Registered: 09/30/13
Posts: 10002
Loc: Indiana


Somewhat unrelated, but this is how I was able to orientate the intake onto the engine with the first try.

I ended up buying new intake bolts just because. It turned out that mine were saturated in coolant, so it was a good idea anyways. I just took 2 bolts and cut the heads off. Then I ground a chamfer on them and then placed them in the front left and rear right holes on the engine just half a turn or so. I had the gaskets and RTV ready and plopped it down. I finger tightened the remaining 6 bolts then removed the guides and installed those bolts next before the torquing sequence. Hope this helps someone.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4484875 - 08/10/17 03:56 PM Re: Oil filter observation after LIM replacement [Re: dlundblad]
Brons2 Offline


Registered: 09/16/03
Posts: 3042
Loc: Austin, Texas
neat trick! Thanks!
_________________________
2012 Hyundai Sonata GLS 6MT 2.4GDI, M1 5w30, OEM filter, 2007 Kia Rondo LX 2.4 I4 5 pass, M1EP 5w30, OEM filter

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#4485096 - 08/10/17 08:04 PM Re: Oil filter observation after LIM replacement [Re: dlundblad]
cronk Offline


Registered: 01/06/09
Posts: 1287
Loc: Watertown, New York
Good Job! I have a 1998 GMC 1500 pickup with the 4.3.
I bought it with a bad engine and replaced with a GM reman.
I bought the Felpro Ultra seal intake gaskets, which are supposed to be the best. 2 and a half years now and going strong!
The 4.3 is a tough engine!

BTW I like to do a short oci after doing any major "surgery" like that on an engine. Any time you crack them open you always disturb some deposits.
In your case with a coolant leak, a really good idea to help flush any residual coolant.
_________________________
1998 GMC C1500
2003 Chevy Cavalier
2011 Nissan Quest
1986 Pontiac Trans Am
1940 Ford 9N Tractor
Amsoil lubes and filters!

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#4485346 - 08/11/17 06:03 AM Re: Oil filter observation after LIM replacement [Re: dogememe]
BigD1 Offline


Registered: 08/12/15
Posts: 2575
Loc: NC
Originally Posted By: dogememe
Originally Posted By: BigD1
Those are ACDelco Classic PF52 not ecore. O'Reilly and Advance still stock them. I just bought one the other day from O'Reilly, and it was made in 2017. Champ Labs is still cranking them out.


Make sure you actually look at the filter, as many non-e part number ACDelco filters are using the e-core design. Unless I'm missing something obvious smirk


Classic have metal end caps with metal center tube, and the center tube still has round holes and not slits. Ecore have some type of fiber(felt?) end caps with a plastic cage for the center tube. I have used both the PF52-E and the PF52 Classic, and cut both open numerous times. I would use the ecore in a pinch, but prefer the Classic.
_________________________
1992 Toyota Pickup--Havoline HM 10W-30--Motorcraft FL-910S

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#4485356 - 08/11/17 06:19 AM Re: Oil filter observation after LIM replacement [Re: dlundblad]
BigD1 Offline


Registered: 08/12/15
Posts: 2575
Loc: NC
Originally Posted By: dlundblad
Originally Posted By: BigD1
Looks like it's fixed! The media in the second picture is a lighter color which indicates to me a short run with clean oil.

Was that the original lower intake gasket? Was the gasket plastic?

Anyway, that's a big job on these engines. Good job!



I am not too sure, but I am guessing they were original given how neglected the poor thing was, but these weren't plastic either. A dead squid is the best way to describe them.


Dead squid. grin2

Maybe GM only used the plastic gaskets on the 3.1...not sure.

What coolant did you use?
_________________________
1992 Toyota Pickup--Havoline HM 10W-30--Motorcraft FL-910S

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#4486215 - 08/12/17 12:08 AM Re: Oil filter observation after LIM replacement [Re: BigD1]
dlundblad Offline


Registered: 09/30/13
Posts: 10002
Loc: Indiana
Originally Posted By: BigD1
Originally Posted By: dlundblad
Originally Posted By: BigD1
Looks like it's fixed! The media in the second picture is a lighter color which indicates to me a short run with clean oil.

Was that the original lower intake gasket? Was the gasket plastic?

Anyway, that's a big job on these engines. Good job!



I am not too sure, but I am guessing they were original given how neglected the poor thing was, but these weren't plastic either. A dead squid is the best way to describe them.


Dead squid. grin2

Maybe GM only used the plastic gaskets on the 3.1...not sure.

What coolant did you use?



My goal was to run Dexcool, JD Cool Gard or G05, but I want to do a Mercedes Benz citric flush so for now I just went with Super Tech conventional green.

The garden hose flush and new coolant uncovered a leaky water pump so at this point I am bit too scared to proceed. Lol.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4486232 - 08/12/17 12:39 AM Re: Oil filter observation after LIM replacement [Re: BigD1]
xtell Offline


Registered: 12/13/06
Posts: 520
Loc: ohio
I have been using the Ecore on my work trucks and even with extended drain intervals, i have not seen any issues with the filters I have cut open.

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#4486288 - 08/12/17 05:59 AM Re: Oil filter observation after LIM replacement [Re: dlundblad]
WellOiled Offline


Registered: 10/03/15
Posts: 1356
Loc: Houston, Texas
Every time I cut an eCore, the elements are in great shape.
_________________________
2004 Ford Ranger 4.0L V6
NAPA Full Synthetic 5W30 + Fram Tough Guard

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#4486307 - 08/12/17 06:52 AM Re: Oil filter observation after LIM replacement [Re: WellOiled]
dlundblad Offline


Registered: 09/30/13
Posts: 10002
Loc: Indiana
Originally Posted By: xtell
I have been using the Ecore on my work trucks and even with extended drain intervals, i have not seen any issues with the filters I have cut open.


Originally Posted By: WellOiled
Every time I cut an eCore, the elements are in great shape.


With the few stories I have heard of them imploding, I'll pass. I've had just as good of luck with Fram, WIX and as you can see here, the AC Delco. I have absolutely no reason to go out of my way and buy one of these.
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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