[Syty] Valve-Cover Gaskets...?

DOlivares seravilo at netzero.net
Sun Jul 1 07:33:04 CDT 2007


This info is absolutely GREAT!!

Who has time, inclination or even a clue as to where to begin searching all those Archives?  Not me; I hardly ever go to those more private "aficionado websites" in the first place... just never developed the habit... always preferred this Forum, even with all its notorious flamethrowers.

Anyhow, I got the '72530 Fel-Pros (always to be selected over that cheesy Victor junk!) last week and am not overly concerned about marginal performance gains with one brand/material over another at this point since I'm only pursuing a stop-gap fix and will do a proper head-refurb with machined bosses and spring-loaded teflon seals on both intakes and exhausts later next year or so.  Dave, you wouldn't believe the SMOKE this poor li'l whipped-horse has been pumping out these past couple o' months!  It's positively scary!!

What I'm most concerned about is doing as little paranoid prep-work as possible so I can get back on the road ASAP.  Specifically, I DON'T want to have to use my spark-hole chuck to hold up the valves 'cause I have to remove my front tires to get at those damn 'plugs and there's at least an hour I can save right there.  (No, don't preach or groan:  Even with every fancy ratchet-wrench/socket/articulated extension available in the Solar System, I cannot remove most of my sparkplugs from the top of the engine bay!  Arms too big... not double-jointed enough!!)  Besides, I'm one of the pioneers of that ol' "Rope Trick" you referred to earlier and have gotten away with it many times... BUT NEVER ON A 'CLONE ENGINE.

So lemme tell ya what I want... what I really, really want, what I really, really, really... [Stop it!] wanna know from your experience or research:
  1.. If I had each respective piston at TDC and happened to DROP A VALVE (again, no pressurized cylinder and assuming the old valve-stem O-ring had rotted or tore off so that nothing could stop the valve from falling all the way through a badly worn guide) INTO THE CHAMBER, HOW FAR WOULD THE INTAKE FALL THROUGH THE GUIDE?  Would the tip disappear completely into the valve-guide before the valve came to rest at the top of the piston?
  2.. Ditto... HOW MUCH FARTHER WOULD THE EXHAUST VALVE DROP?  (This is strictly theoretical since I'm only planning to replace the 'guide-boss seals on the intakes and will likely leave the exhaust O-rings alone.  They're easy to test for leakage fully assembled anyway... just a few drops of penetrating-oil on the keepers.  And, remember, I'm in a hurry on this job!  Still, ya never know....)
  3.. That old VALVE-COVER GASKET THANG....
Those 3 roadblocks are the only thing keeping me from propping open the Hood and diving into the ol' Toolchests... after clearing out all those cobwebs formed thereupon after all these years of neglect.  Shame on me!  If my NIASE card/patches were still up to date I'd make me turn myself in!!!

So whaddaya say, Dave?

D.O.
--------------------------------------------------------------------------------

  ----- Original Message ----- 
  From: Dave Goodhue 
  To: Gary H 
  Cc: DOlivares ; SYTY 
  Sent: Sunday, July 01, 2007 4:49 AM
  Subject: Re: [Syty] Valve-Cover Gaskets...?


  This is a thread on valve seals.  I can't remember which exhaust valve
  seals I used though.  I think I used the SS72711. but I may have used
  SS72529.

  http://www.syty.net/forums/showthread.php?t=10647


  >
  > I used the comp cams website for finding zero lash, I think I did my valve
  > with 1/2 turn of preload.  I did them with the engine running as well, it
  > wasn't that hard either. Here's another good thread about valve seals.  It
  > appears that on some (maybe most?) sy/ty engines, valve seals don't come on
  > the exhaust side.  There are o-rings instead.
  >  You can replace the o-rings with hi-temp valve seals.  Waiting for Sy2455
  > to reply with the part #.
  >  Gary
  >
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