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Umbrella valve seals?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by mattman, Jun 27, 2001.

  1. mattman

    mattman 1/2 ton status

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    Location:
    Austin, Texas
    What exactly are umbrella valve seals? The reason I ask is my '90 seems to have really worn valve guides (and probably seals too). I read somewhere that you can use umbrella valve seals to limp the motor by until it can be rebuilt. Can these be used on my later motor? Are they hard to install? Anything special to know?
    Thanks for any info.

    90 GMC Jimmy, 350 TBI, 700R4, 32's
    84 Bronco II 204,000 miles and counting...........that's 207,000 and counting now
     
  2. sjeccles

    sjeccles Registered Member

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    your motor came from the factory with unbrella valve seals. The intake are a soft rubber and the exhast a hard type. The only reason I know is because iI was at the parts store just yesterday getting ones for my 90 They cost about $20.00 for the whole set (FELPRO)

    90 K5 jimmy
     
  3. bablazer73

    bablazer73 1/2 ton status

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    If you have an air compressor and a overhead valve spring compressor, you can do the seals without taking heads off. If you don't, the heads would have to be disassembled to install.

    your right. I don't understand the jeep thing!
     
  4. KRAZIE87K5

    KRAZIE87K5 1/2 ton status

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    Just take the heads off, and save yourself the stress of dropping a valve, and having to tear it apart anyhow. Head gasket kits should only run you about $50 (FELPRO)

    <font color=red> Check out my truck @ </font color=red>
    <A target="_blank" HREF=http://24.10.209.54/bigolk5.htm>http://24.10.209.54/bigolk5.htm</A> [​IMG]
     

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