valve adjustment performed
#11
Apparently Slipstream hasn't had his valves adjusted with TLC either. If you carefully, lovingly, meticulously adjust each and every valve to the exact same clearance, you WILL notice a difference. The idle is so smooth, you can't even feel it running from inside the car.
#12
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Originally Posted by Hyper-X,Aug 19 2004, 12:28 AM
What I noticed was a smoother idle, nothing power related.
Did he re-torque the crankshaft pully bolt with the harmonic damper pully holding tool and torque wrench?
What were your valve clearances before and after the adjustment?
Without knowing these values, it is not possible to give an answer. IMO, increased smoothness results from setting the valve clearances to a specific value, not just within the specification range. For example, I set all of my intake valves to 0.008" even though the allowable range is 0.008 - 0.010". Also, two of my intake valve were slightly out of specification at 0.011" and they ranged from 0.008 to 0.011" before adjustment.
Without knowing these values, it is not possible to give an answer. IMO, increased smoothness results from setting the valve clearances to a specific value, not just within the specification range. For example, I set all of my intake valves to 0.008" even though the allowable range is 0.008 - 0.010". Also, two of my intake valve were slightly out of specification at 0.011" and they ranged from 0.008 to 0.011" before adjustment.
Honestly, I think you wasted your money, and probably have more to worry about now than you did before. If he didn't use a torque wrench, then you may have reason to lay awake at night worrying about a nut coming loose one day and grenading your engine.
He had this really weird lookin tool.... its like a wrench and a screwdriver in one! I was like damn i didn't have this tool lol.
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Originally Posted by gernby,Aug 19 2004, 10:59 AM
I don't think so. The crank will turn twice for each turn of the cams, so at 9K RPMs, the cams are turning at 4.5K RPMs (75 RPS).
#14
Originally Posted by gernby,Aug 19 2004, 01:13 PM
Apparently Slipstream hasn't had his valves adjusted with TLC either. If you carefully, lovingly, meticulously adjust each and every valve to the exact same clearance, you WILL notice a difference. The idle is so smooth, you can't even feel it running from inside the car.
I am more than capable of doing it myself (I've adjusted the valves on all of my Hondas), but I like to pick up techniques from different mechanics and wanted to watch him adjust the valves on my S2000. He uses the same care and attention I do, but at twice to three times the speed. He is extremely picky!
My car has always run very smoothly, so the difference was not at all noticeable. My valves were adjusted at ~12,000 miles.
He stated that every S2000 that he's adjusted the valves on were out of spec - and typically come that way from the factory. He stated that mine was actually not that bad.
#15
Originally Posted by dookiewhat,Aug 19 2004, 02:03 PM
... He had this really weird lookin tool.... its like a wrench and a screwdriver in one! I was like damn i didn't have this tool lol.
#16
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Originally Posted by RACER,Aug 19 2004, 04:08 AM
Did he re-torque the crankshaft pully bolt with the harmonic damper pully holding tool and torque wrench? I realize that this bolt is on tight as hell from the factory, but I think it would be standard procedure to check the torque on this bolt.
No offense, but you don't want to guess at skill with this car although I am sure your friend is very competent.
No offense, but you don't want to guess at skill with this car although I am sure your friend is very competent.
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How can one really tell if the valves are out of adjustment! On my GS-r it was common practice to have them adjusted every 15 to 20k! Is it the same with the S, because I can only hear them when its a really hot day after a long trip or running the car hard.
#20
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Originally Posted by Bigsalgt,Aug 21 2004, 05:35 PM
How can one really tell if the valves are out of adjustment!
What you choose to do is up to you, but I was pleased with the improved smoothness of the engine, and the knowledge that the valves were adjusted better than the factory settings.