Brass button in the timing cover

Discussion in 'Wrenchin' Secrets' started by Briz, Nov 27, 2021.

  1. Briz

    Briz Founders Club Member

    Was setting up the can shaft end play on the Tomahawk. Didnt have a gasket and parts store was a few days out so I cut a new one out of a roll of material I had on hand. Set the old timing cover used on the last build n tq'd it down. Moved the cam fwd and it moved like 1/2" Hmmmm. Pulled the cover and installed a few shims, not much imp. did it a few more times and was not even close to .10 thou. Removed the cover and noticed the factory stop was ground more than 1/2 way gone. Went out and pulled another cover off the shelf with a stop that looked untouched. put it on and tq'd er down and could get 3-5 thou movement. After posting a question on one of the FB pages it was suggested that I install a brass button. Located a brass 5/16" x18 carriage head bolt. Threaded it all the way to its head. Drilled through the remains of the stock pad after making it flat then threaded the bolt in tight. Bolted the cover on and 0 movement. Off again, sand a bit with a wizzy wheel and back on until it got to .16 fwd and back. Put a couple shims in there and came up with a perfect 10. I'll wait until I get the correct gasket installed before calling it done just to be sure.

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    Last edited: Nov 27, 2021
  2. 455 Powered

    455 Powered Well-Known Member

    Nice work.
     
  3. Briz

    Briz Founders Club Member

    For years I'd find sparkles in the oil and non magnetic stuff in the filters and could never figure where it was coming from. Bet this was the issue all along.
     
    Lane in Mt.Hermon likes this.
  4. Freakazoid

    Freakazoid Gold Level Contributor

    Great job.
     
  5. Mark Demko

    Mark Demko Well-Known Member

    Your end play will increase.
     
  6. Bens99gtp

    Bens99gtp Well-Known Member

    Glad your waiting on the other gasket, they won't be the same thickness at all.

    Why not just use the gasket you made?

    Don't forget some thread sealer on your new stop or you leak oil or antifreeze
     
  7. Briz

    Briz Founders Club Member

    Put a coat of sealer under the head and blue lock tight on the threads. Also considering a coat of JB Weld over where it came through into the water pump cavity.
     
  8. Briz

    Briz Founders Club Member

    Thinking so also.
     
  9. Mark Demko

    Mark Demko Well-Known Member

    What I did on my last build (roller cam) on my 350 was make or get gasket your going to use, install gasket and timing cover and tighten 'er down (mock it up) for 24 hours to let gasket compress/take a set.
    Nest day disassemble then re-assemble doing your end play adjustments.
     
  10. 72gs4spd

    72gs4spd Well-Known Member

    What my machinist did on my 350. Plate from TA for v6. Doubt it would fit the 455, but I’m sure on could be made. Possibly modify V6 plate?
     

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