rishithen7 Posted August 27, 2008 Author Posted August 27, 2008 U pple sure this stuff isnt just in ur head? :) No.
Gaugster Posted August 27, 2008 Posted August 27, 2008 3 - At some point in time (Around 10k from my experience) the cylinders and piston rings are finally polished together so that all the original honing marks are gone. The same would be true for other bearing surfaces in the engine as well as the complete drivetrain - trans, dif', etc.... This represents the full potential of the vehicle.IMHO :D My Toyota truck at 178K miles still showed the honing marks (crosshatch) very plainly. I always thought the typical 45 degree crosshatching was to help hold oil in the cylinder walls..... but I am far from an expert engine builder!! I'd be very blown away to see any typical production engine if the orginal factory hone marks in the cylinders are gone (worn away under normal operation) on a new engine with only 10K miles!!!!!!!! :o Yeah, I am no expert either but I always assumed that the honing marked had to go. It is all part of the rings seating from what I know. Stupid question - but were you looking at the top/bottom of the cylinder where the rings wouldn't actually be making contact or was your observation from the center part of the cylinder?
Gaugster Posted August 27, 2008 Posted August 27, 2008 Yes, I am refering to the cross hatching (45° or 60°???) performed during cylinder honing. I do believe that they wear away completely and have seen it with my own eyes on many types of engines. Attached is a picture that I 'snarfed' from CL. Special thanks to CL user Carchitect!!! It is a IS350 engine with unknown milage. I don't see any honing marks but as you stated, it is possible that they weren't included in the first place. Judge for yourself.
IS250_rookie Posted August 28, 2008 Posted August 28, 2008 Yeah, I am no expert either but I always assumed that the honing marked had to go. It is all part of the rings seating from what I know. Stupid question - but were you looking at the top/bottom of the cylinder where the rings wouldn't actually be making contact or was your observation from the center part of the cylinder? There is no such thing as a stupid question, there are only stupid people :P Yes, I am refering to the cross hatching (45° or 60°???) performed during cylinder honing. I do believe that they wear away completely and have seen it with my own eyes on many types of engines.Attached is a picture that I 'snarfed' from CL. Special thanks to CL user Carchitect!!! It is a IS350 engine with unknown milage. I don't see any honing marks but as you stated, it is possible that they weren't included in the first place. Judge for yourself. Wow I never realized how dirty an engine looks on the inside(the pistons' heads). Very different from all those perfect vacuum animations.
rishithen7 Posted August 28, 2008 Author Posted August 28, 2008 i am proud to say that this posting which i started has now had more than 1,000 views B)
dcfish Posted August 28, 2008 Posted August 28, 2008 1001 By the way, How can it be a TON faster with an extra 2000 pounds
bartkat Posted August 28, 2008 Posted August 28, 2008 i am proud to say that this posting which i started has now had more than 1,000 views B) Congrats.
Blayd Posted August 28, 2008 Posted August 28, 2008 i am proud to say that this posting which i started has now had more than 1,000 views B) So ribeep, how did you get your IS to drive a "ton faster"??? Someone broke into it and stole 2000 pounds of non-vital stuff out of it.
BaddBoi70 Posted August 28, 2008 Posted August 28, 2008 LMAO! Maybe his GF weighed a "ton" and after they broke up (10,000 miles) the car was faster from sheding a ton?????
konac0ffee Posted August 29, 2008 Posted August 29, 2008 Greetings, Maybe the seat was just too far back? Kona ;)
rishithen7 Posted August 29, 2008 Author Posted August 29, 2008 Greetings,Maybe the seat was just too far back? Kona ;) ACTUALLY, you have a point.......i have moved my seat higher hence closer....
dcfish Posted August 29, 2008 Posted August 29, 2008 Greetings,Maybe the seat was just too far back? Kona ;) ACTUALLY, you have a point.......i have moved my seat higher hence closer.... So the seat is closer, Does that make it feel like you get there a little quicker ?
IS_Willie Posted August 29, 2008 Posted August 29, 2008 Someone broke into it and stole 2000 pounds of non-vital stuff out of it. ...and here we are, full circle, right back at the comedy!
IS_Willie Posted August 29, 2008 Posted August 29, 2008 U pple sure this stuff isnt just in ur head? :) No. Even the OP isn't sure that it's not in his head!
bartkat Posted August 30, 2008 Posted August 30, 2008 It doesn't hurt to have a fun thread once in a while. ri*BLEEP*hen7 is well known for his sense of humor.
Blayd Posted August 30, 2008 Posted August 30, 2008 So the seat is closer, Does that make it feel like you get there a little quicker ? Yea hang your head out the window and "lean into it!!"
Sidney07 Posted August 30, 2008 Posted August 30, 2008 All I can add is : 1) our IS has 19K on it, and I'm still waiting for the "beast" to appear 2) our IS has not been "broken into" so maybe we should park it outside instead of in the garage? 3) our IS is not fast and never will be, I know better than to say that it is, but I still like it :P
IS250_rookie Posted August 30, 2008 Posted August 30, 2008 Yeah I really hate the car(250) for not being fast enough, but then again... I own it so I have to accept it. :( I kind of got used to it by now, if I really need some quick(not fast) acceleration I just use the ECT switch.
Varsfootball44 Posted August 30, 2008 Posted August 30, 2008 The is is pretty fast. You guys must drive like your grandmas.
Sidney07 Posted August 31, 2008 Posted August 31, 2008 Whatever Mr. Football. You just line your IS250 up with a Mazdaspeed3, or a NEON SRT4, or a WRX, all of which are like over 10K less than your IS. You then tell me what fast is. None of those cars can compare, however, with the quality and luxury features of the IS, which has been well documented in these forums. No, the IS 250 simply is not a fast car, and if you want to think it is, knock yourself out.
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