Modding /w GT cam - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 12-17-2009, 08:04 PM   #11
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Didn't even think of seals. umm don't you need to take off the heads?
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Old 12-17-2009, 08:06 PM   #12
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No need to remove heads. They simply cover the combustion chambers.
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Old 12-17-2009, 08:10 PM   #13
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To change a cam you need to pull the UIM and LIM, and the timing chain cover. You will need to pull the valve covers and rockers, pull the push rods and the lifter holders. That'* in a nut shell. To remove the timing chain cover involves removing water pump, harmonic balancer and part of the oil pan.
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Old 12-17-2009, 08:25 PM   #14
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Yeah I I new the routine for the cam and such. Planning on pulling the engine doing my last mount. The water pump and power steering pump. But I am unfamiliar with valve seals.
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Old 12-17-2009, 08:28 PM   #15
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They just push over the valve guide. Here'* the guides with the seals removed.
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Old 12-17-2009, 08:29 PM   #16
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Valve seals are like little caps that sit on the valve stems, under the springs, to keep the oil from the valve cover area from getting into the engine. The procedure is that you pressurize your combustion chamber so that your valve doesn't fall in, and then you can remove the spring to put in a new one. Before you put on the new spring, take off the old valve seal that you will then see and put on a new one.

Here are some valve seals on valve stems. For this picture, there are no springs installed.
http://www.jedi.com/obiwan/jeep/wago...orig01_720.jpg

EDIT: Ah, didn't get in before Dan.
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Old 12-17-2009, 11:39 PM   #17
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ah sweet you guys are get. I was thinking of the valve guilds you need to press out
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Old 12-18-2009, 08:20 AM   #18
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I think we should begin a "Send boxes to Rad" campaign.
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Old 12-18-2009, 06:51 PM   #19
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Rad where are you getting this timing chain so cheep?
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Old 12-18-2009, 07:16 PM   #20
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what are the stock rockers on a L36. are they rollers?
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