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Oil leak oil plug left side engine

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Nurse Julie:

--- Quote from: Erwin83 on October 23, 2020, 10:39:56 PM ---
--- Quote from: Nurse Julie on October 23, 2020, 10:36:42 PM ---
--- Quote from: Erwin83 on October 23, 2020, 10:18:59 PM ---Went for another ride the other day and AGAIN oil leaking. Sigh.

So tonight I borrowed another set of eyes and together with the owner of those eyes, we finally diagnosed the oil leak: it was in fact the crank seal and not the plug.  :o

Replaced the seal and tomorrow, if the weather is OK, I’ll go for another test ride. Fingers crossed.


B.t.w. The original seal has a lip, which makes removal a bit of a difficult task (without splitting the cases). The replacement seal (out of a complete kit with all the engine seals) comes without a lip. So it slides right in.

--- End quote ---
Strange, never seen a crank seal without a lip 🤔🤔🤔🤔

--- End quote ---

https://4into1.com/crankshaft-oil-seal-91201-323-005-30x45x8-cb350f-400f-500k-550-650/

This is the one.

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That is not the correct replacement seal. The correct one has a lip on it, for a reason.

Erwin83:
I guess I'll find out.

Bryanj:
All the sets ive had had lipped seals

Trigger:

--- Quote from: Erwin83 on October 23, 2020, 11:24:35 PM ---I guess I'll find out.

--- End quote ---

Yes, you will find out when you are doing 120kph and the seal pops out and the engine blows up. That design was put there for a reason  :o

Erwin83:
Strange, I have two kits on ‘stock’. One for the 350f, one for the 400f.
One from Cruzin image. One from my dutch parts dealer. Both have the same seal without a lip, and checking parts sources online, like the link I posted, but also cross checking the OEM part number, you do come across the lipless replacement part quite frequently.

We’ll see what it does, if I still have a leak, you can count on an honest review here.
If it works.. great news because obviously not having to split the cases is quite a big deal.

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