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PostPosted: Fri Nov 08, 2019 10:14 am 
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4 BBL ''Hyper-Pak''

Joined: Thu Apr 18, 2019 7:57 am
Posts: 37
Location: Lawrenceville, GA
Car Model*: 1966 Dodge Dart
I'd recently thrown my Dart on a chassis dyno for some tuning work. Things appeared to be going well when power suddenly started dropping and the engine developed a dead cylinder and began clattering. I pulled the valve cover and found the adjuster on the #3 exhaust valve rocker arm had backed off so far that I had more valve lash than valve lift. I checked the pushrod and confirmed it was not bent, and the adjusting screw had visibly moved upwards. Are there any precautions I was supposed to take to keep the valve lash from loosening up, or is the only real fix new rocker arms?

If I need new ones, does anybody know of a good source? Or is there any way to fix a worn one with something like Timeserts?

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Matt Cramer
1966 Dodge Dart turbo / EFI project


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PostPosted: Fri Nov 08, 2019 12:57 pm 
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4 BBL ''Hyper-Pak''

Joined: Thu Apr 18, 2019 7:57 am
Posts: 37
Location: Lawrenceville, GA
Car Model*: 1966 Dodge Dart
Update - found a partial batch of NOS rocker arms on eBay, and bought it.

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Matt Cramer
1966 Dodge Dart turbo / EFI project


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PostPosted: Fri Nov 08, 2019 3:41 pm 
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TBI Slant 6
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Joined: Tue Mar 15, 2011 7:56 pm
Posts: 229
Location: Pauls Valley, OK
Car Model*: 1975 Dodge D100
Slantsixdan explains how to deal with loose rocker arm adjustors in this post:
viewtopic.php?p=72139&highlight=#p72139
I've had to do a few. It's a simple, no-cost alternative.

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1975 Dodge D100 225 c.i., HEI, Parallel 2 bbl Motorcraft 2150, 727 auto, 9.25" 3.55:1
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