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Old 05-21-2013, 02:14 AM   #9
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,614
Quote:
Originally Posted by shadrach74 View Post
What's interesting is that a friend that works for an Indy swears that the LN lock is a knock off of the factory tool. He also said that valve spring forces are very low at TDC. And that he has done this procedure a number of times with the slotted locks.

I'm not ringing in personally as i have no idea, just tryin to get as much info as possible, unfortunately some of it's contradictory...
The LN tool is a knock off of the OEM tool, but of the cam locking tool, not the cam holding tool; they are two different items with different part numbers.

Your indy is correct in that spring pressures are reduced at TDC, but they are still there or you would not need the locking tool to keep the cams from moving while doing an IMS witht the engine at TDC. The cam locking tool keeps the cams from turning under spring pressure, the cam holding tool keeps the cam in the journal saddles after the cam cover is removed, other wise one end of the cam would simply pop up from spring pressures, possibly breaking the cam itself.

At the end of the day, it is your car, and you can do it any way you please........
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Last edited by JFP in PA; 05-21-2013 at 02:17 AM.
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