Oil Pan Change.

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by Slo5Oh89, May 5, 2013.

  1. Slo5Oh89

    Slo5Oh89 Member

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    I have a damaged oilpan due to sway bar. I would like to replace pan and gasket.

    I have been told only ways are pull engine or drop k member. And raising engine to work the pan out.

    Currenty have springs, struts and swaybar off for replacement. Really seems like a ton of work to drop k member still from this point.

    You guys always have good advice. Ideas?
     
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  2. pearlnotchback

    pearlnotchback Active Member

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    If you already have the suspension out I would support the motor and drop the k member. That would be the easiest way in my opinion.
     
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  3. cenok is family

    cenok is family Active Member

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    personally, i'd just undo the two big nuts on the motor mounts and raise the engine up a few inches to remove the pan.
     
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  4. Slo5Oh89

    Slo5Oh89 Member

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    Anyone else pulled the pan with the k member in?
     
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  5. David Pepiton

    David Pepiton Active Member

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    pulling the k member is much more work then just disconnecting the motor mounts and maybe the trans mount. and jacking up the motor a few inches. while your at it if you have any doubts about the oil pump now is the time to fix that and maybe upgrade the pan as well if funds are there.
     
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    ratio411 likes this.
  6. Slo5Oh89

    Slo5Oh89 Member

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    Where would u put the jack to raise the engine? Have never done that before.
     
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  7. David Pepiton

    David Pepiton Active Member

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    i use my cherry picker
     
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  8. Slo5Oh89

    Slo5Oh89 Member

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    Ok well that will work. That will allow me to see if the suspension upgrades cures the sway bar damaging the oil pan before I put a new one on.
     
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  9. stykthyn

    stykthyn Commander of the snuggie cultists

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    I put the jack on the oil pan and when it was up high enough I put blocks under the motor mounts and then dropped the jack. If I was to do it over again I would just yank the motor. all the time I spent on my back wrestling with the damn pan and gasket I could have had the engine/tranny pulled and done it comfortably on an engine stand. Not to mention all the things that can be cleaned or addressed with the engine out of the way.
     
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  10. mob

    mob the guy who hits on his mom

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    You're not gonna be able to get the oil pan out by just raising the motor. For a gasket and oil pump change yes but the second hump wont clear the k-member. When I did my oil pan gasket I just raised the motor with a jack on the oil pan, put blocks of wood inbetween the mounts and kmember to hold the engine up and dropped the pan.

    Now I did notice that it was VERY close to clearing, it looked like if you remove the rack and pinion the oil pan would clear but I cannot confirm this as I was not trying to remove the pan.
     
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  11. jrichker

    jrichker StangNet's favorite TOOL
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    Been there, done that - You can do it in the car, but it is hard to do. The best way is to pull the engine.

    Disconnect the battery at the battery ground terminal, remove the fan and fan shroud. Both motor mounts will need to have the large nuts that secure them to the frame removed. The trans mount will also have to be loosened, and it is a good idea to remove the drive shaft.

    I also had to disconnect the cat pipes at the headers to get the engine high enough to remove the oil pan. Be prepared to have to drop the steering rack and disconnect the steering shaft. The flex coupling for the steering shaft needs to be disconnected before you can get the rack pulled down. You should disassemble the coupling by removing the 2 bolts that hold it together. Jack up the engine with a wood block under the oil pan and watch for things that bind or hoses/electrical wiring that may need to be disconnected. I put a couple of wood blocks between the headers and the frame to support the engine. You will likely need to jack up the rear of the transmission as well to get the required clearance.

    Scrape the pan mating surfaces clean as possible - old gasket stuck to the surfaces are a source of leaks.

    There is a one piece oil pan gasket which will help re-assembly if you can find it. If you can't get this gasket, use weather strip adhesive to secure the cork gasket to the pan rails and the rubber strips to the bearing caps. Use lots of Acetone or MEK to clean the gasket surfaces so the weather strip adhesive will stick good. Read the instructions on the adhesive carefully to make sure the gaskets are permanently stuck in place and won't move when you slide the pan in place. Use lots of blue silicone sealer on top of the front and rear rubber seals where they mate with the pan.

    Fill with oil, replace the filter. Reconnect the battery, switch the ignition on to enable the gages, but DON'T crank the car. Remove the distributor and use a 1/4" hex socket to turn the pump counter clock wise (same direction as distributor rotation) until you see oil pressure (an external gage is a great help long about now). And keep turning for about 30 sec after you see the pressure come up. A reversible drill is the best tool to use to turn the 1/4" socket. The pressure should come up to about 50-80psi with cold oil. Once you see good pressure, check for obvious leaks, and then and only then, lower everything back into place and bolt down the mounts and anything else you had to take loose.

    Re-install the distributor and set the timing with the engine running using timing light (don't forget to disconnect the SPOUT plug and reconnect it when finished) 12-14 degrees BDC is good. Start up and check for leaks, let it warm up and look again for leaks. It took me 2 days plus, but I am old and slow, maybe your granny is faster.
     
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  12. ratio411

    Founding Member

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    When you put it back together, use a 1pc pan gasket.
    So much better...
    Also, I'll second the idea of replacing the pump while you are there, assuming it is stock, or hasn't been changed in a while.
     
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  13. 7991LXnSHO

    7991LXnSHO Well-Known Member

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    If you replace the stock pump, I hope you can also replace the pump drive shaft. The stock ones can end up like Twizzlers then break. Use the chrome Molly HD replacement. It stinks to have the oil pressure drop on a rebuilt motor when the builder cheaps out. In your case, the new pump could stress the old shaft too much.
     
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  14. srtthis

    srtthis the guy doing it does every local racers rear end

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    yup and they are CHEAP! think my ford racing shaft was like 20 bucks
     
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  15. stykthyn

    stykthyn Commander of the snuggie cultists

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    ARP shaft also 20 bux. the pan will clear if you drop the rack and pinion and lift the motor. I still vote yank all of it. the felpro 1 pc gasket is a godsend. by all means spend the dough and not worry about a cork gasket failing again. its also reusable in case you have to drop the pan again.
     
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  16. LarsD

    Founding Member

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    I'd pull the motor. Not worth it to do it on your back.
     
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  17. mikestang63

    mikestang63 Mustang Master

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    I'll add that if I remember correctly, there are two different oil pan gasket designs, depending on the year of the car. I used the Felpro blue 1 piece design with the steel reinforcements on each side, installed dry with a little dab of silicone on the edges to fill in the mating surfaces.

    Not to add to your work, but you might as well check the rear main seal while you are down there. 90% of these cars have leaky rear main seals. I did mine at the same time as the pan gasket replacement.

    Also, many times a faulty PCV system can cause the pan gasket to blow out, so you should also check that the tube and valve work and are not clogged.
     
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