C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Lower Timing Gear...How to get off?

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Old Jul 3, 2006 | 11:09 AM
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Default ASAP Lower Timing Gear...How to get off?

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Hey guys I've posted a couple all ready and I finally got the hub off or my car and I'm on my way to getting the new cam in my LT4. The lower timing gear on the crank looks like it is pressed on. How do I get it off? I appreciate all the help I have had so far.

Last edited by Achilleus07; Jul 3, 2006 at 11:24 AM.
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Old Jul 3, 2006 | 11:28 AM
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I used a three prong puller from AutoZone.
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Old Jul 3, 2006 | 11:31 AM
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K...thats what I figured. Thanks again for all the help. Finally got that hub off this morning in like 15 minutes.
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Old Jul 3, 2006 | 11:33 AM
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Originally Posted by Achilleus07
Finally got that hub off this morning in like 15 minutes.
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Old Jul 3, 2006 | 11:53 AM
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Also if anyone else reads this or you read it again STL...how do you set the lashing. All the other site says is zero the lashing and +1/4. How do you do that? It wasnt really specific.
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Old Jul 3, 2006 | 12:09 PM
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With the #1 piston at TDC compression stroke adjust the intake valves on 1,2,5,7 and exhaust 1,3,4,8. Then rotate the engine one revolution with #6 at TDC and adjust intake 3,4,6,8 and exhaust 2,5,6,7. I use 1/2 turn past 0 lash.

To find 0 lash I slowly tighten the rocker and move the pushrod up and down until 0 lash.
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Old Jul 3, 2006 | 12:20 PM
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Oh, I just remembered you have an LT4. If you are reusing the stock rocker arms there is no need to find 0 lash. Just tighten to 18 lb-ft.
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Old Jul 3, 2006 | 12:46 PM
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You are on top of all of it. . I have the hot cam installed and now its put back together time. Thanks for all your help. I will update later on when its running.
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Old Jul 3, 2006 | 04:27 PM
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These posts make me feel all warm and fuzzy. I remember clearly the day I installed my first cam and had no idea how to do it. And I didn't have help from a forum like this, there was no internet then.

Dam good thing I didn't ruin that 305, I lashed the valves while they were at overlap. Somehow that made sense to me at the time, of course the valves never seated and the starter spun that bad boy over with great zeal.
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