Rear main seal install problem

[Anonymous-0]

I am installing a new rear main seal in a 2N and it seems too long. It hangs out both sides of the carrier mounted in the block.

I bought one set of seals that had two red ended seals, I thought that I had gotten the wrong parts, so I ordered another set from another vendor since they show different part # for the top and bottom seals. They are the same. The CNH site shows a green for the block and a red for the pan.(I think)

I can not push it into the channel any further, it sticks out about 1/8" on each end. I doubt that I could cut it clean enough to make a good seal.

I would rather not have to replace this seal again if it leaks, I want to do it right, I am sure there are experts that can help me with some advice, and it would be welcome.

Thanks, Ken Baumen

 

[Dunk]

There are folks, that may not agree with me.

Listen to them.

I poked mine in as much as I could, then I cut them off (the ends), and put a good dab of silicone on all of the ends, and put her together.

Yes she does leak a little, I keep the oil checked.

Ell you only got impregnated ropes fer seals, anyways, they bound to leak some.

I might be wrong...

 

[Dan]

Ken - I do as Dunk said - cut them off flush and put black Permatex on the ends right before I put the oil pan on. You do not want to leave any sticking up too far - that is how the thin inside edge of the oil pan rope seal area gets cracked off. Those seals are fairly tough to cut - I install mine so one edge is flush initially, and the other side is the only side sticking up. This way, I only have to cut it once instead of both sides. Use a sharp new straight razor blade and watch those fingers. Make sure it is pressed in GOOD befor cutting - I use a socket that is the right size and wack it a few times with a hammer to seat the seal in good. Soak it in oil a few hours before installation to aid getting it in good. Also, let the oil pan gasket lay in between the upper and lower seals to help seal it even better.

HTH,
Dan

 

[JOHN HUNT]

hey dunk you forgot something








to soak the seal for 2 hours in oil and it not my idea that what i am told ...

 

[ZANE]

Use something round that will fit the arc of the seal holder and tamp it down all around. Do not cut the ends off. The excess will either be squeezed into the seal retainers or will be squashed flat and have no effect on the fitting together of the pan and block.

I've done so many of these seals I can not even hope to come up with a number but I have never cut one. Not one!

Zane

 

[Anonymous-0]

Thanks everyone for the comments. I may be overthinking this, but I have a 9N tractor with a leaky rear main and I really don't want this one to leak. I still wonder if I got the right seals, The part # is different for the top and bottom in the book, but both of the sets I bought had identical seals top and bottom.

I turned a delrin (plastic) plug on the lathe and tapped the seal down as far as it will go. I am sure it is on the bottom of the channel. one end sticks up .23" and the other end sticks up .15". I am worried that there is no room for that much rope to squish, especially if there is that much hanging out of the pan side also. I guess I will install the pan side and see if that one goes in flush.

Before installing the seal, I put it in a jar of engine oil and pulled a high vacuum on it, air foamed out for several minutes, then I left it in the vacuum oil for about 10 minutes. I am sure the seal has plenty of oil in it.

Thanks, Ken Bauman

 

[John (TR)]

Ken
They stick up, thats the way they are. There are a couple of different methods to install. I've done both ways and they still leak a small amount. I'm not sure they are capable of sealing competely. If you soak them in oil first as I agree with, silicon is not going to stick to them anyway. The last ones I did I left slightly higher than the gasket and put it together.

 

[Drmeatman]

Zane,I'm like you,don't trim them.I have done it though.I take a round peice of wood (about the size of a large egg) soak the rops in oil and tap easy on the wood to get the rope seal in real good. No trimming.Works for me.I also use the neoprene seal on the front seal.I like it to.Course,what do I know.

 

[Tom N MS]

Mine don't leak a drop. I did not install it but apparently the old dude I took it to when I was trying to get it running right(after I gave up)--anyway he must have known what he was doing and must have installed it right. He did show me two different kinds. He said the one I had taken to him(bought from a well known supplier)was not the right one. the one he showed me was thicker(bigger around) and he siad that was the right one and was what he used. When he found the problem it was valve springs too short--they were also new and had been bought from the same reputable supplier.