[QUOTE]Originally posted by SECRET AP1
[B]

quote:
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from Break In Secrets
How Do Rings Seal Against Tremendous Combustion Pressure ?? ... From the actual gas pressure itself !! It passes over the top of the ring, and gets behind it to force it outward against the cylinder wall.

 

if you look at this picture



shouldn't the piston be brown on top and at least all the way down to the first compression ring?

 

honda606, the ONLY thing you have said to dispute what he says is that its marketing for his magazine. Just cause its marketing DOES NOT mean its incorrect.

Can you dispute what he says directly? About how break-in works? His fact/proof is his knowledge of how engines work. As of yet, no one has said he is incorrect. Can you tell us why he is wrong?

Blake

 

[QUOTE]So please, lets just discuss it without getting upset.

 

Ok...let me rephrase it. He gives the mechanics on why his technique works. Can you give some form of information on how an engine works to dispute his claims?

All you say is it is incorrect. Explain to me why.

Blake

 

This guy doesn't provide any physical or mechanical means of proof that his method works. There's nothing to disprove as there is no hard evidence in the first place.

Think about this: Whether this guy's method works or if it's just a load of crap, you will not know for a long time. By the time you figure out whether it's good or bad, he'll be long gone.

I just find the amount of trust you put in Joe Schmoe's website astounding if not amusing.

 

Who I? I just said he has provided more reasoning behind what he said than anyone else had. He mentions the way piston rings seal, etc. So can YOU provide any reasons to dispute his claim other than "The manual says otherwise"?

Blake

 

I must say, none of us is blindly believing what the guy wrote BUT we want an explanation WHY what he wrote is wrong.

I think we need someone like UL to explain clearly why the guy is wrong so there can be no doubt!

 

This has to be a joke!


~Raymond

 

Well, I read the "whole" thing! News flash guys, this is NOT a new idea. I read a very similar ariticle in one of the motorcycle magazines when I was learning to ride back in the early to mid 1970's. Please don't ask me to quote the exact publication, date and issue. This was 30 years ago and it aint going to happen!

Back then, it was not uncommon for motorcycle manufacturers to recommend restricting engine rpm to, as an example, 3k rpm for the first 300 miles, 4k rpm to 600 miles, 5k rpm to 1000 miles, and then let her rip after that. The problem I always had with this is that it felt like I was lugging the engine around a lot of the time. Not to mention the fact that a 175cc to 200cc motorcycle restricted to 3 to 4k rpm was also restricted to 35 to 45 mph which tests mightily the patience of a 17 year old!

Anyway, the articles premise was that engine rpm, in and of itself, wasn't the big deal in terms of engine break-in that we were led to believe. They stated that engine "loading" was much more important. So (!!), the recommendation was that the manufacturers rpm restrictions during the break-in period should be "generally" adhered to and that occasional full throttle runs to red line (or close to it) should be made in 2nd and/or 3rd gear to help seat the rings. Sound familiar? In this case, "occasional" was defined as once or twice every time the engine was run long enough to reach full operating temperature, roads and traffic conditions permitting of course! The bike should then be coasted back down to more reasonable rpm ranges and ridden sedately to allow the engine to cool some after the high throttle burst. The main difference I see between what Motorman's recommends and what they said 30 years ago (probably before Motorman was born!) is that today, he wants you to do this all in the first 20 or so miles in the life of the engine. Back then, they were spreading the process out over the entire break-in period.

Now, not being any engine expert myself, I have no way of proving the validity of this process one way or another. All I can say is that, as a lay person on the subject, it kind of makes sense to me. It's a gut feeling. I have also ridden the break-in periods of multiple motorcycles through the years using the manufacturers method and methods similar to what Motorman is suggesting and I've never had any problems, mechanical or otherwise, with any of them so who knows?

One thing I do believe, the couple of added horsepower that this process might produce isn't anything that most of us will ever truely feel anyway. Besides, you can't go back and redo the break-in period to see if there's a difference so how are we "really" going to know on your particular engine anyway? As long as you properly maintain the engine, oil changes, etc., and don't outwardly abuse it in the process, you'll very likely have a solid reliable unit to play with for as long as you want.

FWIW,
Drive Safe,
Steve R.