2200 Crankshaft Oil Seal Leaking - Performance Forum

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2200 Crankshaft Oil Seal Leaking
Tuesday, August 09, 2011 2:11 PM
I have a fully built and boosted 2200. Im leaking oil from the crankshaft seal. I have replaced it twice and its still leaking.
Is there any special procedure im missing?
I remove the pulley, remove the old seal, pack grease behind new seal, insert new seal, replace pulley.
Could the turbo be heating the oil up, and changing its viscosity drastically to make it leak past the crankshaft seal?
This is a very frustrating, small and constant leak.

Any Ideas
Thanks

Re: 2200 Crankshaft Oil Seal Leaking
Tuesday, August 09, 2011 3:45 PM
Are you seating the seal all the way? Is it leaking between the seal and the block, or seal and crank?
Re: 2200 Crankshaft Oil Seal Leaking
Tuesday, August 09, 2011 4:31 PM
make sure the spring in the seal is staying where it is suppose.


- Your not-so-local, untrained, uncertified, backyard mechanic. But my @!#$ runs
Re: 2200 Crankshaft Oil Seal Leaking
Wednesday, August 10, 2011 3:22 AM
Do you have an underdrive pulley?





i find it amusing that SHOoff has nothing better to do but follow me around & be an unhelpful dick in even cross-forum. - Jon Mick
Re: 2200 Crankshaft Oil Seal Leaking
Wednesday, August 10, 2011 5:38 AM
Dave De Stefano wrote:Are you seating the seal all the way? Is it leaking between the seal and the block, or seal and crank?


Its seating flush with the timing cover. You asked if it between the block, no, its not the rear main seal, im talking about the one in the timing cover.
It leaking between the seal, and the pulley.

The spring is staying in place, that is why I packed it with grease. The two that I have removed, still had the spring in it too.

No I do not have an underdrive pulley, just stock crank pulley.

Should I try to press it on further with a rubber mallet, or a 5lb sledge with a block of wood.
Could it just not be seated all the way, to seal on the pulley?
Re: 2200 Crankshaft Oil Seal Leaking
Wednesday, August 10, 2011 2:38 PM
Okay, how many miles are on this engine? I ask because something you won't believe tends to happen to engines with higher miles on them: The lip of the seal tends to wear a groove into the part they come in contact with. This happens most-commonly with the harmonic-balancer & the like, resulting in less than ideal contact of the lip with the surface in question, and causing a leak. Fortunately there is a cure: Many companies make replacement seals meant for "groove-worn" balancers & what-not that corrects the problem... It's only a matter of searching for it to get it, which would mean using the right keywords, of-course.


Go beyond the "bolt-on".
Re: 2200 Crankshaft Oil Seal Leaking
Thursday, August 11, 2011 2:48 AM
Nickelin Dimer wrote:Okay, how many miles are on this engine? I ask because something you won't believe tends to happen to engines with higher miles on them: The lip of the seal tends to wear a groove into the part they come in contact with. This happens most-commonly with the harmonic-balancer & the like, resulting in less than ideal contact of the lip with the surface in question, and causing a leak. Fortunately there is a cure: Many companies make replacement seals meant for "groove-worn" balancers & what-not that corrects the problem... It's only a matter of searching for it to get it, which would mean using the right keywords, of-course.


In the bolded text. That's why I asked if you had an underdrive pulley. I know a lot of times the aluminum pullies will get a grove worn in them real quick causing a leak. I think there's someone on the boards here that will put a steel ring on those to help with just that problem. That's why I'd asked. Check to see if there's a groove in the crank pulley from the oil seal, or whatever it's touching.





i find it amusing that SHOoff has nothing better to do but follow me around & be an unhelpful dick in even cross-forum. - Jon Mick
Re: 2200 Crankshaft Oil Seal Leaking
Thursday, August 11, 2011 4:42 AM
SHOoff wrote:
Nickelin Dimer wrote:Check to see if there's a groove in the crank pulley from the oil seal, or whatever it's touching.


In the case with the LN2, that would be the cast-iron (Steel?) hub that the pulley bolts to.


Go beyond the "bolt-on".
Re: 2200 Crankshaft Oil Seal Leaking
Thursday, August 11, 2011 5:30 AM
Nickelin Dimer wrote:
SHOoff wrote:
Nickelin Dimer wrote:Check to see if there's a groove in the crank pulley from the oil seal, or whatever it's touching.


In the case with the LN2, that would be the cast-iron (Steel?) hub that the pulley bolts to.


Yeah I already bought the kit to fix the worn groove in the hub.

Looked it over last night, took me about an hour .....

The seal was dry, but the bottom lip of the oil pan, right above the dogbone, had a drip waiting to fall.
Very weird, I looked for the path this "drip" took to reach this lowest point, but everyplace above it was dry.
So I was stumpped for about 5-10 minutes.
I ran my finger along the external bead of RTV on the semi-circular oil pan seal, to find oil coming out of a pin hole in the RTV.

I knew that the cork gasktets suck to begin with, so I added some extra RTV when I installed this.
Obviously it didnt work out well.
Is there a one piece rubber gasket for the pans, or just the crappy two piece cork and rubber one.

Im just going to run this for the summer, because with my build, its a lot of dissambly to drop the oil pan.
It will just improve my underbody rustproofing!
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