Quote:
|
Originally Posted by quaddriver
In other words, as I said, Honda recommends a 60K interval.
|
Sure, in perhaps 5% of cases they recommend an interval that short. I don't think that's a very strong basis for your assertion that they must be changed frequently.
Score: xOHC motors have cam driving mechanisms that require inspection, service and replacement on a frequent basis over the life of the car. OHV motors have cam driving mechanisms that require nothing and last the life of motor. Advantage OHV as originally stated.
These "frequent" replacements of the timing belt that you keep harping on still amount to a single replacement in the entire life of the vehicle, in the vast majority of cases.
Well, managing editor of C&D Csaba Csere has an engineering degree which is more than you do, and he himself has conducted such tests AND he has an online presence - feel free to contact him and inform him how useless his findings are. Its not all that hard to measure the noise output from the engine bay at any RPM. Why, I even hear the measuring devices are simple enough be used by high school students such as yourself! Aint modern progress grand?
How about if you post a link to a site where this guy actually makes the claims that you attribute to him (belts are noisier than chains, in case you forgot what you're talking about). Alternatively, since you insist that he's making these claims, you contact him, then tell us what he says. That's the responsibility of the person making the ridiculous claims (you), not the person who says that something smells (me). You clearly haven't a clue about NVH measurement practice, nor about the equipment required. Not surprisingly, you have no idea what my credentials are either...
Quote:
|
Actually, its the SAE who has named the 3800 from GM 'best', criteria being a number of factors not limited to power output, economy, emissions, reliability, noise, smoothness, service ease, and so forth.
|
References? Year? I gather you're not a fan of supporting your blathering with anything credible...
You are so funny mikey....you want me to do what you have not...but suffice to say, I am satisfied with my college education and degrees earned.
Perhaps you should reassess that level of satisfaction. I think that my college education and present field of work put me on pretty firm ground here... and I can tell you don't have a clue.
I think I'll stand pat...however, when you do graduate high school, I highly recommend a college education if you can swing it. Very beneficial.
...or so you've heard, right?
btw - that fact that you do have a chilton book for your car is admirable, many people fly blind.
btw, it's not a chilton book, and it's not for my car. It's a factory service manual for a Honda Civic, which I keep on my desk for the occasional reference or diagram. It's great for occasional client questions like "can you give me any examples of a lost-motion device that is used in the valvetrain of a current production engine?"
take if from someone much older and more experienced
You may be older, but based on your statements thus far, you're clearly not more experienced in the field of automotive design.