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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

blowby after h/g replacement?

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Old Dec 23, 2010 | 10:11 PM
  #41  
sethn's Avatar
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BTW, this leg of the trip was Austin to San Jose (current 'home'... did I mention this truck has a camper shell on it? ;-)
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Old Dec 23, 2010 | 10:24 PM
  #42  
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From: Vegas
Congrats on making it home with no "major" incidents, keep us posted on what you are doing with it .
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Old Dec 23, 2010 | 10:31 PM
  #43  
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Funny story: We were finally 5 miles from home after a couple thousand miles on the road w/o problems, and I decided to get a burrito. The thing finally stalled, and then... horror... wouldn't crank (starter didn't go). 'Bout crapped my pants. I unplugged the negative terminal from the battery, reconnected it, and it fired up. Guess the old "less CPU than a calculator" ECU got scrambled by the stall (?). I thought it was kind of a fitting/hilarious end to the trip (wife didn't think so, she cried the remaining 5 miles).
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Old Dec 23, 2010 | 11:18 PM
  #44  
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Wow, you had the woman with you on this trip, thought you were running solo !!
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Old Dec 24, 2010 | 01:10 AM
  #45  
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From: i ka moana
Originally Posted by sethn
After doing some research, I've discovered the valve-adjustment screws often wear, so if they're rotated you're now pushing the valve spring with a point instead of a flat surface, so one or multiple end up clacking. The un-even shape would also explain why I had so much trouble getting the valve clearance to "hold" (it always seemed to drift a little... I think now its adjustment difficulty owing to an uneven measuring surface).
i never even thought of that until the shop i took one of my heads to pointed out how setting valve lash with messed up tappets is hard. $20 remedied that. when i pulled out the old ones i was pretty shocked. it looked like someone used them to pound nails.

also x2 on leakdown test both dry and wet just to help narrow things down
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