Leaky Seals and Gaskets - The Saga of Njordi

[Boerderij_Kabouter]

Now that Njordi is running smoothly, it is time to address the soggy bottom.


After inspecting the undercarriage up on the lift, here is my task list:

1. replace front main seal (Part No. 90311-48014)
2. Replace valve cover gasket #1 (Part No. 11213-76020 and Toyota FIPG)
3. Replace valve cover gasket #2 (Part No. 11214-76010)
4. Replace manual transmission select level oil seal (33205A)

Local Toyota parts department should have them all for me next week. Then it will be time to run a 505 CRO oil treatment, swap gaskets, and flush/replace fluids (oil, coolant, transmission, rear diff.).

Hopefully this will get me mechanically at 100% and I can start looking to fun stuff!

[Boerderij_Kabouter]

PXL_20250117_142531390.jpg

This figure shows the transmission seals. The select outer level oil seal is seeping a bit and I want to replace it before I change the tranny oil. I don't think these seals have a part number (which is weird) but the guy at my local Toyota parts department was able to find it with me on the phone. Should come in with the rest of my gaskets and FIPG early next week.

This is the transmission oil I ordered (Red Line 50304 MT-90 75W-90 GL-4 Manual Transmission and Transaxle Lubricant).

[Previologist]

I had to look up why you listed 2 valve cover gaskets, as I've only ever seen one! But they do call it that, which I find weird. The 11214 gasket isn't likely to leak oil though, I don't think. I've never replaced one of those when replacing my valve cover gasket but to each their own.

[John Kaufmann]

Now that Njordi is running smoothly, it is time to address the soggy bottom. ... Then it will be time to run a 505 CRO oil treatment ...

FWIW, I also never replaced the outer valve cover gasket. More important, though: Where did you learn about 505 CRO (which sounds interesting)? Any experience with it? - if so, on what?

[Boerderij_Kabouter]

Learned about the 505 additive from Scotty Kilmers YouTube vids. Seems worth a shot. He got better results with it than other products when checking before and after with a scope.