PDA

View Full Version : Green Bean Oil Leak


akingf5371
09-15-2013, 11:36 AM
Guys-
I need some help identifying a leak on Green Bean ('82 40). It is all stock, has had the t-case rebuilt and I just had the clutch replaced with the rear main seal. It seems to be a pretty small one but I need some 2nd opinions. I thought it was an oil pan gasket or oil plug gasket (which looks leaky) but I think the oil pan looks pretty dry. I thought maybe the PS box was leaking but it looks dry too. Throw some ideas at me!

akingf5371
09-15-2013, 11:37 AM
More!

farnhamstj
09-15-2013, 12:34 PM
clean everything including the floor. Park on top of a piece of cardboard and let it sit for a day or 2. See if you can better identify the location.

Looks like you have oil and coolant on the garage floor. those are 2 different problems.

Was it leaking before the clutch and rear main seal?

SteveH
09-15-2013, 03:12 PM
Drips on the rear leaf spring bushing can be from your PS box. Clean it all and wipe it all down with towels (outside of oil pan, etc.) and then get in there a day later with a flashlight.

akingf5371
09-17-2013, 10:30 AM
clean everything including the floor. Park on top of a piece of cardboard and let it sit for a day or 2. See if you can better identify the location.

Looks like you have oil and coolant on the garage floor. those are 2 different problems.

Was it leaking before the clutch and rear main seal?

Good call. I always noticed a small oil drip but not the coolant leak no. I just moved into a house with a garage as opposed to the dirt parking spot I was in before, so in all honesty it could have been leaking prior to this but I never noticed.

subzali
09-17-2013, 12:19 PM
I wish I had your oil leaks :(

There is a cam plug on the back of the engine block, was that checked? How about your side cover gasket? Sometimes that oil can migrate back and drip from your clutch inspection cover (which looks like the worst leak to me).

Unfortunately I think you would have to pull the tranny again to get to it :(

MDH33
09-17-2013, 12:46 PM
My guess is that cam plug Matt mentioned, or else the new rear main didn't seat right or the seal surface is boogered causing it to leak even with a new seal.

nakman
09-17-2013, 12:50 PM
Sometimes when you get the drip off the oil pan's little skid plate, it can be coming from the welds that hold that little skid plate on. This one:
http://www.risingsun4x4club.org/forum2/attachment.php?attachmentid=34588&stc=1&d=1379266610

I fixed this once with JB weld inside the pan.. :hill: With the pan off I could pull on the skid plate, and see where the metal was cracked.. of course now that I know what I know I'd most likely get it welded for real, but at the time JB seemed to fit the skill set, and budget. a repair that's still kickin', to my knowledge. so if you take the pan off, check it out.

akingf5371
09-17-2013, 01:17 PM
I wish I had your oil leaks :(

There is a cam plug on the back of the engine block, was that checked? How about your side cover gasket? Sometimes that oil can migrate back and drip from your clutch inspection cover (which looks like the worst leak to me).

Unfortunately I think you would have to pull the tranny again to get to it :(

The side cover gasket is dirty, but dry. I did look there. The cam plug is something that you have to pull the tranny for, right? That will be the last one I check, but a good idea. How would that leak? I thought it was a solid plug?

My guess is that cam plug Matt mentioned, or else the new rear main didn't seat right or the seal surface is boogered causing it to leak even with a new seal.

A possibility.. the oil leak is very slow which I hope means it's the skid plate like Nak mentioned below

Sometimes when you get the drip off the oil pan's little skid plate, it can be coming from the welds that hold that little skid plate on. This one:
http://www.risingsun4x4club.org/forum2/attachment.php?attachmentid=34588&stc=1&d=1379266610

I fixed this once with JB weld inside the pan.. :hill: With the pan off I could pull on the skid plate, and see where the metal was cracked.. of course now that I know what I know I'd most likely get it welded for real, but at the time JB seemed to fit the skill set, and budget. a repair that's still kickin', to my knowledge. so if you take the pan off, check it out.

This seems like a likely culprit. I will clean everything off and check this weekend.

akingf5371
09-17-2013, 02:12 PM
Does anyone have a tranny jack I could borrow for a bit?

akingf5371
09-25-2013, 09:37 AM
So, I think I found the coolant leak, the hoses on the oil cooler are old and they appear wet. I've got a whole new set from Toyota, so those will be replaced. I have a small drip on the radiator plug so I'm wrapping that in teflon and going to reinstall. I also ordered a new Valve cover gasket, side cover gasket, new oil pan and gasket. So, I will see if all of that fixes the problem. I'm going to check out the rear main while I'm down there, if it' still leaking I'll drop the tranny and check the cam plug.

RicardoJM
09-25-2013, 10:23 AM
Does anyone have a tranny jack I could borrow for a bit?

I have one you can borrow.

akingf5371
09-25-2013, 11:19 AM
I have one you can borrow.

Ricarado you the man! If all the new hoses/gaskets this weekend doesn't fix it, I will be making a visit to you.

Rezarf
09-26-2013, 02:34 PM
Man, I thought 40's were supposed to leak like that. I stopped changing fluid years ago... I just top them off every so often ;)

akingf5371
09-29-2013, 07:33 PM
So, did some work Sat and Sunday. I rigged up a lift to hold the top in the garage, which worked out great. On the 40 I replaced the crush washer on the rear diff, drained and filled it. Hopefully that will take care of that leak. I was trying to replace the side cover gasket today, but once all the bolts were out I couldn't get the cover off! I didn't want to risk bending it by prying on it. I soaked it with kroil but that thing seems to be permanently welded to the block. Any tips??

Rezarf
09-29-2013, 08:48 PM
It just pops off, pry it.

subzali
09-29-2013, 09:51 PM
I think there is a cork gasket, you might have to slice through it in several places to persuade it to give up

akingf5371
09-30-2013, 10:54 AM
It just pops off, pry it.
I'm worried about bending the side cover and not being able to get a good seal when I re-apply.

I think there is a cork gasket, you might have to slice through it in several places to persuade it to give up

You are correct and that is a good idea.

akingf5371
10-01-2013, 10:40 PM
Finally got the side cover off! It is pretty rusty and I'm concerned about this bulge around the PCV elbow. I don't think it leaks. Just for insurance I threw some JB weld on there. I'm going to sand it down and paint the whole thing. Thoughts?

rover67
10-02-2013, 10:09 AM
it dosen't look too rusty to me....

Hit it with a wire wheel, sand it and paint it. Also get a small hammer and make sure the spots where the bolts come through it are flat again. It'll be good to go.

Make sure the surfaces on the block are clean too.

As far as replacing it goes, I have had good luck using weather strip adhesive to glue the cork gasket to the cover before setting it back in place.

I can't remember how the PVC elbow went on (welded?), but JB weld will probably work.

akingf5371
10-03-2013, 11:00 PM
Hey guys, I'm removing my A/C and I am curious if this bracket holding the compressor is the OEM alt bracket

akingf5371
10-04-2013, 11:27 AM
Through some image searching I've determined that is an aftermarket bracket. Looking for the OEM one now.

subzali
10-04-2013, 09:00 PM
If you want to keep that compressor you will have to keep that bracket or similar. That is a sanden compressor that was never intended to bolt up to your engine from the factory.

akingf5371
10-07-2013, 11:57 AM
If you want to keep that compressor you will have to keep that bracket or similar. That is a sanden compressor that was never intended to bolt up to your engine from the factory.

Right, good call on that. I would rather go the FJ60 route and mount the compressor where the A/C would mount for that instead of this hybrid poorly thought out option. It's off and running well now. The oil pan and side cover really weren't that bad of a job, I think it buttoned up those leaks! The whole A/C setup will be for sale on Mud here in the near future. Good riddance in my opinion. I've owned it for 2 1/2 years and never once turned it on, but have cursed the poor install many times. :cool:

subzali
10-07-2013, 12:09 PM
I just remembered that if you were to go the fj60 route you will have to put the three-row pulley on too

nuclearlemon
10-07-2013, 12:33 PM
if you need an fj60 compressor, i've got one i'll let go cheap.

akingf5371
10-07-2013, 01:06 PM
I just remembered that if you were to go the fj60 route you will have to put the three-row pulley on too

I hadn't looked into it to much, thanks Matt.

if you need an fj60 compressor, i've got one i'll let go cheap.

Ige-
I'll keep it in mind, I really don't think I'll put A/C back into it. I mean, if it's cool enough for A/C the top should be off IMHO. I was just making the point to Matt that if I was going to do A/C it wouldn't have been that after market piece.