12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

Dumb question...

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Old 11-05-2006, 09:27 PM
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Dumb question...

Ok, I searched and can't find an explanation I can understand. What exactly is this "killer dowel pin" everybody keeps talking about fixing? What does it do and what has to be done to fix it? Considering that I haven't had the truck all that long what other preventative maintinence should I do?
Old 11-05-2006, 09:36 PM
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It is an alignment pin on the timing cover that works out in to the pump, cam and vacuum gears and can cause a crack in the cover. Or it can fall in the oil pan and couse no prob, or it can stay in and never cause a prob. Best bet to fix it!
Old 11-05-2006, 09:53 PM
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Originally Posted by wilderness
It is an alignment pin on the timing cover that works out in to the pump, cam and vacuum gears and can cause a crack in the cover. Or it can fall in the oil pan and couse no prob, or it can stay in and never cause a prob. Best bet to fix it!
Or destroy the engine...
Old 11-05-2006, 09:56 PM
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Originally Posted by Digital Bullet
Or destroy the engine...
Yep, I prefer to infasize the FIX IT! Once you find out what it is you loose alot of sleep over it until it's fixed.
Old 11-06-2006, 08:17 AM
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Here is a link to the TST kit to fix it. http://www.tstproducts.com/index.asp...PROD&ProdID=64 It is not a tough fix, just 3-4 hours of basic wrenching...

And the seal included is like $35 at cummins, many wonder why a bolt, washer and seal is so expensive. Plus it includes great instructions.
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