oil leak.

[brawnyrebel]

Is it common for older fj40's to leak oil from underneath the skidplate on the oil pan?. I just got a 68 today and that seems to be where its leaking from.

I have been lurking around for a few months but never bothered to register, So Hello every one

 

[brian]

yeah, if it's rotted out, which it sounds like yours is.

time for a new oil pan.

 

[billstoyshop]

Is it common for older fj40's to leak oil from underneath the skidplate on the oil pan?. I just got a 68 today and that seems to be where its leaking from.

I have been lurking around for a few months but never bothered to register, So Hello every one

Oil leaks from the skid plate means you may have a transmission or transfer case leak. First, remove the slkid plate and pressure wash or steam clean everything under there. Check the fluid levels in the gear boxes(to low or over full) then moniter for leaks. Leave the skid plate off for now and just check daily for new oil leaks. Typical leak areas are -rear output seal, speedo housing seals, and transfer idler o-ring. Clean it up and let me know and I will help you through the repair. Bill

 

[brian]

Oil leaks from the skid plate means you may have a transmission or transfer case leak. First, remove the slkid plate and pressure wash or steam clean everything under there. Check the fluid levels in the gear boxes(to low or over full) then moniter for leaks. Leave the skid plate off for now and just check daily for new oil leaks. Typical leak areas are -rear output seal, speedo housing seals, and transfer idler o-ring. Clean it up and let me know and I will help you through the repair. Bill

re-read the first post, closely

 

[mhdsummers]

I drove my 40 around with a leak from under the oil pan skid plate for 3 years. I finally got around to replacing my oil pan yestarday. PITA job but worth the time. I was getting pretty sick of that leak.

 

[cruiser88]

if it is the oil pan for the love of god dont use the cork gaskets did mine 3 times before i finally just went and bought a rubber one .same for the lifter cover gasket and the valve cover gasket try advance gaskets there great(velpro)if i spelled that right

 

[4x4Poet]

re-read the first post, closely

Lol



(I shouldn't laugh. I've been guilty of the same from time to time. )

 

[Poser]

Is it common for older fj40's to leak oil from underneath the skidplate on the oil pan?.

Welcome.



It is not uncommon for the spot-welds that attach the skid plate on the bottom of the oil pan to fail, and cause oil to leak from there. I would simply install a new pan, and be done with it, if it is your intention to keep the truck for a while. I have wasted time in the past trying to weld the pan back together, but there is usually a lot of corrosion on the surrounding material that make this very difficult, if not impossible.

Hit up cruiserdan and he will shoot you the best price on a new oil pan, drain plug, plug gasket, and oil pan gasket.

if it is the oil pan for the love of god dont use the cork gaskets....

Huh?



Were these gaskets OEM Toyota or the multi-piece aftermarket units?



I only use an OEM gasket, and they work great.



-Steve

 

[PabloCruise]

x2 on the OEM gasket...

WELCOME to MUD! Enjoy your Cruiser!

 

[brawnyrebel]

Thanks for the help. I shot cruiser dan an email. If he dosnt have one ill try to get the skid off and weld it up

 

[PabloCruise]

Oh, he will have one...

It will look like this:

BTW, when I got my new one, I sealed the seam btwn pan and plate w/ ultra-black so no moisture and dirt could get in and sit there and rust.

 

[Degnol]

Thanks for the help. I shot cruiser dan an email. If he dosnt have one ill try to get the skid off and weld it up

I was able to braze mine, then sealed it like Pablo suggested.

Ed

 

[4x4Poet]

Wow! That's quite a difference in the look of the pan. More lip overhang, so to speak. Any thoughts on the different style (at least from FJ40 2Fs I've seen) of the replacement pan? Does it offer more protection? Is the skidplate thicker?

 

[Poser]

Does it offer more protection? Is the skidplate thicker?

Protection from what?


The plate thickness is not the same as earlier pans...


If you set the truck on a rock or log, and it finds it's way to the pan, it will not make any difference...the pan is still going to lose...

 

[wantatlc]

x2 on the OEM gasket...

maybe dumb question, but could you just not use black RTV and make your own gasket?

 

[Degnol]

Protection from what?


The plate thickness is not the same as earlier pans...


If you set the truck on a rock or log, and it finds it's way to the pan, it will not make any difference...the pan is still going to lose...

If you run without the skid protection on the oil pan, those Pitbulls will dent it.
That's what the skid plate is for....protection from Pitbull carcasses








































I......make.....the...........joke.


Ed

 

[Poser]

maybe dumb question, but could you just not use black RTV and make your own gasket?

You can do anything you want to.



I would not waste my time with any gasket other than OEM.


When you replace a pan gasket someday, you will understand why you would not want to screw around with trying to make one...




Good luck!


-Steve

 

[Blue77FJ40]

You might check my write up in tech on oil pan installs with snap-ups. Makes the install much easier.

 

[4x4Poet]

Big branches popped up by a tire could hit the oilpan skid plate without necessarily stressing the main body of the pan, so how thick and how much coverage is in the skid itself can make a difference. The weight bearing capabilty of the pan never entered my mind since, as you say Poser, it's over by then.

 

[wantatlc]

You can do anything you want to.

but of course. thanks.

I would not waste my time with any gasket other than OEM.

When you replace a pan gasket someday, you will understand why you would not want to screw around with trying to make one...

yes, "someday" is just around the corner and I was just looking for a specific reason why without guessing why. Naturally, I can forsee issues like the RTV getting soiled or deformed or pushed off when trying to push the pan back up to mate as you bump into stuff, blah blah. I asume this is what you mean and that a rubber gasket will not get soiled, can easily be cleaned at the last moment as the pan hangs by a few bolts, etc.