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should I adjust the valves myself?

I've had my 930 for over a year now. It's about time to adjust the valves. My plan all along was to do as much of the work as possible myself, but I always planned to pay a shop to adjust the valves. It just sounded like too big of a PIA for me to do myself.

Recently I got a 2 post lift installed in the garage. I've got the 930 up in the air to replace a torn CV boot. While I was looking around under the car I thought that it looked like the valves should'nt be a major hassle now that the car is up on the lift.

So the question is now that I've got the lift,... does that reduce the PIA factor of valve adjustment enough that I should do it myself?,...or is this a job better suited to a professional?

Thanks
Old 06-03-2008, 06:36 PM
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Yes! Not hard at all. Just make sure that you read up first and take your time.
Old 06-03-2008, 07:35 PM
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Yes:
backside valve adjustment - my thoughts
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Old 06-03-2008, 08:32 PM
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The hoist will make life much easier, though the bottom ones are the easiest anyway, the top ones are the pita in my opinion. Get some silicon gaskets in there while you're at it.
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Old 06-03-2008, 09:14 PM
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Yes, you can do it Bobby Bucheit!
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Old 06-03-2008, 09:18 PM
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I understand the technique ok but how do you ensure that the cam is at base circle for each valve? Is it visible enough to tell?
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Old 06-03-2008, 10:25 PM
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As you rotate the crank you'll see that the cam lifter remains closed ~70% of the time just move the crank until the valve closes, then maybe another 1/4 turn in the same direction while still closed and you'r on the base.
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Old 06-03-2008, 11:29 PM
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Thanks. I'll give it a shot. I'm gonna order the silicone gaskets, and a new hardware kit before I tear into it.
Old 06-04-2008, 06:06 AM
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Yea man tear into it.......use the backside method which can still be a little of a pain in the ass but just take your time.

JERRY
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Old 06-04-2008, 07:31 AM
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I just did mine - took about an hour total. But I have to say the factory way is more an art if you do it correctly - it takes a bit of experience. 2000 miles after the rebuild, nearly every one was loose and took about an 1/8 to 1/4 turn to bring them back.
Old 06-04-2008, 06:31 PM
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Quote:
Originally Posted by DonE View Post
I just did mine - took about an hour total. But I have to say the factory way is more an art if you do it correctly - it takes a bit of experience. 2000 miles after the rebuild, nearly every one was loose and took about an 1/8 to 1/4 turn to bring them back.
Hi Don,
I'm curious about this statement you made about valves being loose after a rebuild? If they are new valves they should seat in and the lash should get smaller after a new build. Can you explain how they would get loose? I usually gap mine loose for the first 1000 miles or so to take this into account. Can you postulate how they would get loose as opposed to tight? Valves in general should tighten rather than loosen over their life, unless they burn, bend, warp or something else. You're certainly not the first guy to mention this and I'm just curious what the mechanism of loosening is. I can come up with mechanisms for tightening, just at a loss how they would loosen(Lash) under normal wear.
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Old 06-04-2008, 07:01 PM
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