Camshaft Seals - Crankshaft Seals -- No sealant?

[Joshman]

Doing 90K Service, after a few hours thumbing through the repair manual and looking through forums. I couldn't understand how camshaft and crankshaft seals get no fipg(sealant) just mp grease.

After a few video's it seems it just fits close enough not to leak. Anyone want to explain this, I figure even though zero leak it is worth while replacing these for a couple bucks - I'm at 109K so won't be doing this again until 200K.

Service manual shows pushing camshaft seals in by hand and crank with special tool. I'm planning on using some pvc.

 

[abuck99]

No fpig for oil seals in general. They are pressed in place, and if done correctly do not leak.

Fwiw at 109k I’d leave them alone if they arent leaking.

And if you have a 06, 07 you really dont want to dive into those for PM. VVT cam seals require some additional steps you probably dont want to pay for or do unless absolutely necessary.

 

[Joshman]

2000 no VVT- After wrapping me head around this it was like a ten minute job once in there, they looked metal to me but are actually some sort of coated solid rubber. Last ones I did were on a VW Passat and I had to lift the cams which kind of a oh s*** moment without the right tools or a manual.

 

[nissanh]

If the cam seals are good, why not leave those alone? 90K miles is nothing for OEM toyota seals. I have mine at 230K and still good. Even the crank seal. If you are paying someone to do that then get those replaced too but go with OEM and nothing else.

The cam seal is a tigh fit and goes right in if you tap it in carefully. Apply a bit of grease into the inner seal before you slide the seal in. When you are removing it, be very careful not to damage the cam or outer housing surface.

 

[Joshman]

If the cam seals are good, why not leave those alone? 90K miles is nothing for OEM toyota seals. I have mine at 230K and still good. Even the crank seal. If you are paying someone to do that then get those replaced too but go with OEM and nothing else.

The cam seal is a tigh fit and goes right in if you tap it in carefully. Apply a bit of grease into the inner seal before you slide the seal in. When you are removing it, be very careful not to damage the cam or outer housing surface.

As I said it was cheap and turned out easy (just didn't quite get how these seals worked until pulling out the old one).+ I've had to do them on other cars and don't feel like dealing with that between now and 200K. I did pretty much everything I could except starter contacts as it seems strong and can be done with tearing apart the front again I believe.