Calgary Jeep Association

4x4 Related Groups => Tech Talk => Topic started by: JENSSEN on May 09, 2013, 11:02:46 PM

Title: A oil filter is a oil filter right,...???
Post by: JENSSEN on May 09, 2013, 11:02:46 PM

Case study 1994 Grand Cherokee, 271,XXX Kms on the odometer, 4.0L auto.

Scenario oil was changed 2 days ago.

Day one: on start up idle is rough like timing is retarded. Next lifer/rocker tick is evident.

Day two: oil pressure is 2-3 bars low at idle and at 3,000rpm not reading at even the half way point on the OEM gauge. Idle and lifter/rocker tick is worse.

So I decided to pull the "partsmaster" filter as it all began after the oil change,.. It was VERY hot to the touch that had me thinking,..

With the stock pile of Jeeps I have at the house I have some good quality filters always in stock.

So when I removed the filter I compared it to a quality Baldwin filter.

(http://i651.photobucket.com/albums/uu235/RACE4THECURE/58293E37-13C0-4678-94B7-4EEFFCE45E62-2693-00000249DE108331.jpg)

(http://i651.photobucket.com/albums/uu235/RACE4THECURE/A39D0DEC-8141-4EBE-B328-21FBB098C60E-2693-00000249E9459523.jpg)

I replaced the "partsmaster" filter with the Baldwin, replaced the lost oil and ran the same tests. The Jeep responded very positively and idle oil pressure is higher than 3,000 rpm pressue with the old filter. We have regained previous oil pressure before the change , noise and odd idle seem to be corrected for now.

Title: Re: A oil filter is a oil filter right,...???
Post by: Vinman on May 09, 2013, 11:36:45 PM

Now cut that thing open and see what the problem was.

Title: Re: A oil filter is a oil filter right,...???
Post by: JENSSEN on May 10, 2013, 12:03:10 AM

Quote from: Vinman on May 09, 2013, 11:36:45 PM

Now cut that thing open and see what the problem was.

Plan on it, especially after only 2 days of use

Title: Re: A oil filter is a oil filter right,...???
Post by: TL-Iguana on May 10, 2013, 12:18:25 AM

theres more zinc in the baldwin filter which constrains the flow through the pores of the filter medium. therefore more pressure, and more zinc!

I use belt dressing also on the rubber o-ring when installing to stop it from squeaking when turned past 3/4...

Would also like to know what you find inside Jennsen. I havent heard of baldwin filters, unfortunately it usually comes down to quaker state and Fram, but I was changing my oil almost monthly on my Jeep when I was running it.. Where did you get the Baldwin? Would this be something you recommend to others as a decent buy?