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-   -   Basic Maintenance - Engine Oil Change (http://www.jeepforum.com/forum/f12/basic-maintenance-engine-oil-change-865490/)

Mean Max 09-25-2009 10:14 PM

Basic Maintenance - Engine Oil Change
 
I did an engine oil change on my '91 4.0L YJ today with the help of my daughter. Here's how we did it.

Start by getting 6 quarts of oil. I change mine often, so I just use the Wal-Mart store brand 10W-30 motor oil. It comes in 5 quart jugs & 1 quart bottles. I also use Marvel Mystery Oil (MMO) as it seems to help my sticky lifter situation, and it makes up for the larger capacity oil filter I use.

http://i702.photobucket.com/albums/w...e/P1000455.jpg

The factory specified oil filter for my '91 4.0L is the Mopar MO 090 oil filter. I use the Motorcraft FL-1A oil filter because it has the same 3/4 X 16 thread pitch mounting plate, the same diameter seal, but more filter area and a larger capacity.

http://i702.photobucket.com/albums/w...e/P1000452.jpg

Basic hand tools are all that are required.

http://i702.photobucket.com/albums/w...e/P1000454.jpg

I always start with a warm engine. I had driven the Jeep around town today prior to the oil change.

http://i702.photobucket.com/albums/w...e/P1000471.jpg

Remove the oil filter first. This will allow the oil from the filter to drain back into the pan, much like removing your finger from the tip of a straw filled with soda. Also you should inspect the sealing surface to insure that the sealing ring from the old filter isn't stuck on the block.

http://i702.photobucket.com/albums/w...e/P1000456.jpg

Now drain the oil from the pan. In this case, a 9/16" socket was all that I needed.

http://i702.photobucket.com/albums/w...e/P1000457.jpg

Do not reinstall the drain plug until the oil stops draining in a steady stream. Once the stream turns into a drip, you're okay to reinstall the plug.

http://i702.photobucket.com/albums/w...e/P1000458.jpg

Mean Max 09-25-2009 10:15 PM

I usually pre-fill the oil filter about 2/3 of the way with fresh oil. This reduces the time that it takes to build oil pressure.

http://i702.photobucket.com/albums/w...e/P1000461.jpg

Be sure to lube the sealing ring of the new filter with fresh oil prior to installation.

http://i702.photobucket.com/albums/w...e/P1000462.jpg

Install the new filter. I only hand tighten the filter about 3/4 to 1 complete turn from the time the seal makes contact with the engine block. Realistically, you want it really snug (by hand!) but "Gorilla tight" is uncalled for.

http://i702.photobucket.com/albums/w...e/P1000463.jpg

Refill the engine with fresh oil. Prior to starting, make sure that you have adequate oil on the dipstick and there is no fresh oil dripping from the drain plug or in a huge puddle under the Jeep.

http://i702.photobucket.com/albums/w...e/P1000472.jpg

Now restart the engine & make sure that your engine builds oil pressure. Once you build oil pressure, leave the Jeep running in Neutral or Park (with the parking brake on!) and look for any sign of an oil leak while running.

http://i702.photobucket.com/albums/w...e/P1000464.jpg

Mean Max 09-25-2009 10:16 PM

While you're under the hood, check out some key items while waiting on the oil to drain. Look at the battery, it should be fairly clean, dry, and the terminals should be free of corrosion.

http://i702.photobucket.com/albums/w...e/P1000465.jpg

Check the level & condition of the power steering fluid. Only use power steering fluid or ATF in the power steering reservoir. If it looks dirty or smells "burnt" then you should consider changing it.
NEVER PUT BRAKE FLUID IN THE POWER STEERING!

http://i702.photobucket.com/albums/w...e/P1000470.jpg

Check the clutch fluid level & condition in the reservoir. Again, dirty fluid should be a candidate for a fluid change. Use only DOT 3 or 4 fluid from a new sealed container.
NEVER PUT POWER STEERING FLUID OR ATF IN THE CLUTCH FLUID RESERVOIR!

http://i702.photobucket.com/albums/w...e/P1000469.jpg

Check the brake fluid level & condition in the reservoir. Again, dirty fluid should be a candidate for a fluid change. Use only DOT 3 or 4 fluid from a new sealed container.
NEVER PUT POWER STEERING FLUID OR ATF IN THE BRAKE FLUID RESERVOIR!

http://i702.photobucket.com/albums/w...e/P1000467.jpg

Don't forget the coolant overflow container from the radiator. Refill it with a 50/50 mix of anti-freeze & water. Also check the windshield washer fluid level.

http://i702.photobucket.com/albums/w...e/P1000466.jpg

BE RESPONSIBLE! Properly reclaim & recycle all old oil products.

http://i702.photobucket.com/albums/w...e/P1000473.jpg

Max :cheers2:

TSEJEEPERS 09-25-2009 11:05 PM

Cute kid! Like the sunglasses

jaycal3 09-25-2009 11:11 PM

Nice write up for basic maintenance...Thanks Max!

tobias94yj 09-25-2009 11:20 PM

thanks for sharing the info on the higher capacity oil filter. I will be getting one of those next time I change the oil:thumbsup:

Leans93 09-25-2009 11:26 PM

I'm gonna have to get a set of those tools with the eyballs :thumbsup: cute pic!

Mean Max 09-25-2009 11:35 PM

Quote:

Originally Posted by Leans93 (Post 7996145)
I'm gonna have to get a set of those tools with the eyballs :thumbsup: cute pic!

It's her "Handy Manny" tool set!


She loves helping & "driving" the all 3 of our Jeeps!

Max :cheers2:

StormlessWolf 09-25-2009 11:58 PM

Max, thanks for taking the time to do this write up :thumbsup:! Sometimes, the simplist things are the ones that get us hahah! Good to have this on hand!

BTW, not to hijack the thread, did you install the Transgo kit for your buddy who had the late shifting auto?

:cheers2:
Cameron

Mean Max 09-26-2009 12:07 AM

Quote:

Originally Posted by StormlessWolf (Post 7996257)
Max, thanks for taking the time to do this write up :thumbsup:! Sometimes, the simplist things are the ones that get us hahah! Good to have this on hand!
I see folks on here who have had no exposure to even the simplest tasks and ask what most wrench spinners would call a "stupid question" or worse they won't ask because they don't want to appear inept. The truth is that these folks are probably plenty smart in their own field of expertise, but want to learn about their Jeep. Hopefully, this will help some questions for the "new" guys & gals.

BTW, not to hijack the thread, did you install the Transgo kit for your buddy who had the late shifting auto?
No I haven't. I suggested it to him and he wants to do it, but I just found out that he has no working speedometer and a CEL on. I want to find out what the deal is there first, and then go on to the Transgo kit. Where did you purchase your Transgo kit? I've had a bit of difficulty locating one for a TF904.

:cheers2:
Cameron

Thanks!

Max :cheers2:

StormlessWolf 09-26-2009 12:19 AM

"I see folks on here who have had no exposure to even the simplest tasks and ask what most wrench spinners would call a "stupid question" or worse they won't ask because they don't want to appear inept. The truth is that these folks are probably plenty smart in their own field of expertise, but want to learn about their Jeep. Hopefully, this will help some questions for the "new" guys & gals."

hahha...thats me:laugh:! I should really start doing my own oil change (now I have a house and garage it should be easier) but, I do it mostly to help my mechanic out.

"Where did you purchase your Transgo kit? I've had a bit of difficulty locating one for a TF904."

It's funny you ask this as I am having trouble as well! Did you try Summit Racing? Also, I found Transgo's website, but I didn't see anything mentioned about a TF904. Also, I am sure my is a TF904 but how would I Know for sure?

StormlessWolf 09-26-2009 12:42 AM

Here ya go Max, I think I found the kit: Transgo Performance TF-1 - TransGo Performance Shift Kits - Application - SummitRacing.com

Mean Max 09-26-2009 09:57 AM

Quote:

Originally Posted by tobias94yj (Post 7996127)
thanks for sharing the info on the higher capacity oil filter. I will be getting one of those next time I change the oil:thumbsup:

Folks who are considering using a larger capacity filter need to make sure that the new filter uses the same thread size & pitch, and the sealing ring has the same diameter.


The '91 & newer 6 cylinder engines use a 3/4" X 16 thread pitch, and IIRC the older 4.2L used a 20MM x 1.5 thread pitch.

Anyone who can offer any correction or additional input please chime in!

Max
:cheers2:

pasinbuy 09-26-2009 10:26 AM

Hi Max,

Very cute kid, she made me smile through the whole thread, thanks.

Anyway I want to question the use of Marvel Mystery Oil in your oil when changing the oil. Unless you add it before the oil change and run the motor for a while. It seems to me that the Marvel Mystery Oil just thins the fresh oil??

Mean Max 09-26-2009 11:47 AM

Quote:

Originally Posted by pasinbuy (Post 7997141)
Hi Max,

Very cute kid, she made me smile through the whole thread, thanks.
Thanks! She sure is a joy to have around!

Anyway I want to question the use of Marvel Mystery Oil in your oil when changing the oil. Unless you add it before the oil change and run the motor for a while. It seems to me that the Marvel Mystery Oil just thins the fresh oil??
I use it in the fresh oil of every oil change. It seems to have quieted down my lifter tick considerably over the course of the last year. I use a 1/2 quart to a quart (depending on how much extra I need to top up the oil from using the higher capacity filter) and I leave it in for the duration of the oil's service life. I'm pleased with the results so far, so I guess that's all the proof I need.

Max :cheers2:


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