Volvo RWD 120-130 Forum

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Engine Front Seal 120-130

posted by  Rjamer on  Tue Oct 26 12:42 CST 2010
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last visit: Sun Oct 5 11:53 CST 2014
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I have a B20 engine in my 1967 122S.. I have a oil leak and I am pretty sure it is coming from the seal on the timing cover.(bottom pulley) I really have not looked very closely at it yet.. I looked at my Haines manual and it appears that you just remove the nut on the pulley and the pulley is supposed to come off easily they say.. When I bought the car there was a new timing cover with a seal included for some reason..I had planned to just take the new seal out of the new cover and slip it into the original cover for an easy fix.. I am just wondering if these timing covers are prone to cracking or whatever at it seemed odd that the previous owner had bought a new cover when only a seal appears to be needed.. I do not have a new gasket for the new cover hence my easy fix plan.. Anyone have experiance with this problem.. Thanks !!!








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    Engine Front Seal 120-130

    posted by  uncle_bagley on  Wed Oct 27 02:53 CST 2010
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    last visit: Fri Oct 24 09:32 CST 2014
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    Robert, when you decide to tackle this job, whether it's replacing the seal or the timing cover, give me a call and I can drop over and share my experiences. I replaced my timing cover and added the neoprene seal about 6 months ago.

    Cheers,
    --
    Barry '67 122S "Betty", '69 122S "Veronica"








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    Engine Front Seal 120-130

    posted by  Rhys on  Tue Oct 26 15:00 CST 2010
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    last visit: Tue Nov 20 10:22 CST 2012
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    Properly installed there is nothing wrong with the felt seal. Remove the bolt and the pulley falls off. Pick out the big circlip, remove the thin plate, and pick out the old felt seal. If you are really feeling like you should check, get a .004 in feeler gauge and confirm that it fits in and slides easily around the crank snout between it and the housing. If it does, then the housing is centered. Oil the felt seal really well, push it in, and replace the parts. About ten minutes tops. And it won't leak if the crankcase breather system is working as it should. Far easier than installing the new neoprene seal.







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    Engine Front Seal 120-130

    posted by  mcduck on  Tue Oct 26 13:11 CST 2010
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    last visit: Sun Sep 9 11:47 CST 2012
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    The new cover is probably machined for, and has installed, an elastomeric ("rubber") seal; the old one likely has a felt seal, whence the leak.








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      Engine Front Seal 120-130

      posted by  Rjamer on  Tue Oct 26 13:24 CST 2010
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      last visit: Sun Oct 5 11:53 CST 2014
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      Yes,,it has a rubber seal so more than likely the old cover will not take the new rubber seal..So,,I will now have to order a timing cover gasket before I do anything.. Thanks for the info. mcduck and so much for the easy fix.. lol








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        Engine Front Seal 120-130

        posted by  sandyuman on  Tue Oct 26 17:24 CST 2010
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        last visit: Tue Apr 30 06:29 CST 2013
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        Actually, it's a pretty easy swap. Pull the radiator for good access and don't forget the two pan bolts underneath the bottom edge. It's also an opportune time to check your timing gear for wear and the gear oiling nozzle for blockage.








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          Engine Front Seal 120-130

          posted by  Rjamer on  Wed Oct 27 03:55 CST 2010
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          last visit: Sun Oct 5 11:53 CST 2014
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          Thanks to everyone for all the info regarding the front seal.. Now I know why the previous owner bought a new timing cover with the new seal in place.. In a couple of weeks I will get the car up to my brother-in-law`s garage and go to work on this as well as a few other things .. Thanks Barry!!! It is nice to have a volvo guy with in 15 miles !!!







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