340 HP engine break in

[chpthril]

This has turned into a pretty good "pissin" match and has been entertaining AND informative. Sounds like there is a fair amount of anecdotal information out there when it comes to this topic. In the medical field we find this a lot. It takes large well-designed studies to come up with information that stands the test of time. Even then, what we think we know often changes with yet a larger, better-designed study. It would be intersting to know if there is any good solid evidence out there for any of the various theories that have been discussed.

Oh, and in the case of a "pissin" match, it has been my experience treating patients that the older you get the less forcefull your stream......

Not trying to make this into a pissing contest, just having a little fun with balair. Hope I didn't offend him or anyone else

I dont have any scientific studies, but I do have experience. Take automobiles for example, we drive them off the lot, in many cases with only a couple miles on them from the PDI, and never look back. Heck, I dont even know what the recommended "break-in" is for cars! I've owned 2 brand new cars, and many used in my life. Both new ones are still on the road - a 96 Pontiac with 200K + miles, and the Trailblazer, which has 100K and has towed boats and trailers from day one. My current daily driver was purchased with 160k and now has 205k. I did a compression check on it at around 190k and they avg'd 140psi.

I think "break-in" is over rated IMPO, dont abuse it, but dont baby it either. Driver like you intend to use it and do the recommended services.

[jwanck11]

I basically floored my WRX off the showroom floor and drove it to 125K miles until a deer got in the way. That 4 banger with a turbo was still mighty peppy at 125K.

I have no idea how my boat was driven, but it seems to me that regular maintenance is more important than break-in. Watch the gauges regardless of whether it is day 1 or hour 1K!

[ragboy]

Not trying to make this into a pissing contest, just having a little fun with balair. Hope I didn't offend him or anyone else

I dont have any scientific studies, but I do have experience. Take automobiles for example, we drive them off the lot, in many cases with only a couple miles on them from the PDI, and never look back. Heck, I dont even know what the recommended "break-in" is for cars! I've owned 2 brand new cars, and many used in my life. Both new ones are still on the road - a 96 Pontiac with 200K + miles, and the Trailblazer, which has 100K and has towed boats and trailers from day one. My current daily driver was purchased with 160k and now has 205k. I did a compression check on it at around 190k and they avg'd 140psi.

I think "break-in" is over rated IMPO, dont abuse it, but dont baby it either. Driver like you intend to use it and do the recommended services.

I still follow the break in on new vehicles, and my boat, mostly because I was always told to do so in the past. My last NEW vehicle was my 97 Yukon, which I was told to break in the first 600 miles. But I just bought a brand new Jeep Wrangler 4 door for my wife, and when I asked about break in, they didn't know what I was talking about. So I called the service dept, and they said you don't need to do that anymore.

My brand new Star Stratoliner had a break in period, keep the rpms down and such for the first 600 miles.

[SPBFAN]

All these engine are bench/dyno tested before shipping, they are either put together right or wrong and no matter how you drive them will make a difference. Drag racers rebuild the engine between every run, right? Ever seen them go down the track on a test run varying the RPM's, nope, they drop the hammer and go.

During the course of a normal day on the lake, the RPM's will be fluctuating with out you trying to do it per a "break-in" procedure.

*EDIT* I forgot to add, during the dealer's initial seatrial, the engines WOT RPM's are supposed to be noted, so it's allready been there!

X2

[dogbert]

I have underware older then both of your ages combined, there is more to breaking in an engine then just bearings , cams , and rings . I reccomend let the engine get to its normal operating temperature, before hammering the throttle, monitor all of your guages as you go through the warm up , and then you can drive it for normal watersports, all the time eyeing the guages that first hour.

Great advice.

[SPBFAN]

I still follow the break in on new vehicles, and my boat, mostly because I was always told to do so in the past. My last NEW vehicle was my 97 Yukon, which I was told to break in the first 600 miles. But I just bought a brand new Jeep Wrangler 4 door for my wife, and when I asked about break in, they didn't know what I was talking about. So I called the service dept, and they said you don't need to do that anymore.

My brand new Star Stratoliner had a break in period, keep the rpms down and such for the first 600 miles.

The invention of a CNC Machine has changed this a lot. The mear fact that we can now machine tolerances of .001 or less is amazing. Most engines are set to a very tight tolerance and the engineers do this expecting that the customer will not worry about break in. Get your car, boat, RV, Truck, Lawn mower, motorcycle what ever it be and use it normal. It will wear into the correct tolerences and you will not have a problem from break in. Obviously don't be abusive just me smart and drive like a normal person. In other words no power turns.

[SPBFAN]

Great advice.

Very good advise. Let your engine alway warm up before getting on the gas. I always do.

[balair]

momma always said it's better to be safe than sorry.

[balair]

Not trying to make this into a pissing contest, just having a little fun with balair. Hope I didn't offend him or anyone else

we post whores are all friends here

I'm a very chill person, it's hard to piss off/offend me
Plus in a group of males, a pissin contest is inevitable, it's our nature
i know you were just havinig fun, as was I

[live2dive]

we post whores are all friends here

I'm a very chill person, it's hard to piss off/offend me
Plus in a group of males, a pissin contest is inevitable, it's our nature
i know you were just havinig fun, as was I

One of the attractions of this site vs others is the light-hearted nature of the posts...even when there is disagreement. My take home on the info provided, is let common sense prevail. If it's new and untested on the water, might not be a bad idea to ease into it a little the first few times out...

This has definitely been informative though....as I mentioned in my previous reply. No shortage of experience and wisdom.

[FIC]

In this pissing contest is it for distance, volume or the amount of times you have to go.

[chpthril]

In this pissing contest is it for distance, volume or the amount of times you have to go.

Hope it's not for distance, i'm already handicapped

[FIC]

At my age I probably will win for the amount of times.

[talltigeguy]

Is it distance from where it leaves the pump, or from the end of the hose? If it is the distance from the end of the hose, I am screwed.

[live2dive]

Is it distance from where it leaves the pump, or from the end of the hose? If it is the distance from the end of the hose, I am screwed.

Tall - you have an unfair advantage since by the laws of physics your urine has farther to fall during its trajectory, thus resulting in an over-exagerated distance by comparison to the rest of us.