LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

How to remove Opti dowel pin from cam?

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Old Feb 5, 2004 | 12:17 AM
  #1  
jimlab's Avatar
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How to remove Opti dowel pin from cam?

I need to pull the dowel pin (non-splined 1994-1995 style) out of the front of my cam and don't want to have to go to the trouble of pulling cam or anything that involved. Is there a way to easily "pull the pin", or does everyone just cut them off?

I'm running a Cloyes billet double roller and no Opti-spark, so I have both the water pump drive shaft and Opti holes plugged in a new front cover, and I need to get the pin out of the end of the cam for clearance.

Thanks!
Old Feb 5, 2004 | 07:48 AM
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Jim...as you suspected, you'll more than likely have to cut it down to length. I went through the same thing...cam was already installed. Tried like HELL to pull that damn pin out....but to no avail. Ended up masking everything off...and cut it. Obviously you're wanting to remove it altogether...you might want to try heating it up a bit, then attempting to pull it out of there with a nasty pair of locking vice grips....good luck.

Last edited by 4drLT4; Feb 5, 2004 at 07:51 AM.
Old Feb 5, 2004 | 07:57 AM
  #3  
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Why don't you just mill a new cam without a pin out of a block of metal, like you do everything else Jimmy
Old Feb 5, 2004 | 08:28 AM
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you can tap it in , but I wouldnt tap on the cam with it inthe motor unless you had it fully installed with the gear on ti too, this would prevent damage to the rear plug . You might also remove the oilpump drive plug to prevent its teeth being damaged.
Old Feb 5, 2004 | 09:27 AM
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The dowel pin on both of my Comp Cams would come out fairly easily. I know you'd have to yank the cam but shouldn't a machine shop be able to pull one out and tap in a new one?
Old Feb 5, 2004 | 09:33 AM
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Originally posted by 93ZM6Tally
The dowel pin on both of my Comp Cams would come out fairly easily. I know you'd have to yank the cam but shouldn't a machine shop be able to pull one out and tap in a new one?
Sorry Jim. I'm apparently not too smart and should actually read something before I reply to it. I think I'd go with the cut out method. I cut mine to length with a die cutter and was surprised at how easily it was. Do you need to get it perfectly flush or would just getting it down to a "nub" work. If you only need to get it down to a "nub" I would think cutting it in the engine would work fine.
Old Feb 5, 2004 | 09:47 AM
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"Nub" works, but it would be nice to just remove it completely. I gave it an experimental tug with a pair of vice grips, and it's definitely in there.
Old Feb 5, 2004 | 09:54 AM
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Hey Jim, I would just cut it if you dont want to pull the cam. Just mask everything off real well when you do it so that metal fragments dont get in the motor. I had to do that to my 396 a couple years ago when nu-tek didnt double check the dowel length (after I specifically asked them to) and I ended up toasting 3 opti's until I figured the problem out. Nice little $650 expense, but I am used to that now

Any word on your end with Marky? In the end, he stiffed me for $500 plus 10 months of time.

Jason
Old Feb 5, 2004 | 10:16 AM
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Originally posted by kmook
Why don't you just mill a new cam without a pin out of a block of metal, like you do everything else Jimmy
No one likes a smart ***, Ken.
Old Feb 5, 2004 | 10:24 AM
  #10  
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Originally posted by Jason Short
Any word on your end with Marky? In the end, he stiffed me for $500 plus 10 months of time.
I don't even want to talk about it...
Old Feb 5, 2004 | 12:10 PM
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That's what I figured Sorry to hear that.....i know exactly how you feel.

Jason
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