Going Fast.....Breaking Parts!
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Going Fast.....Breaking Parts!

  1. #1
    TPI
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    Default Going Fast.....Breaking Parts!

    It always seems like high speeds and records are attained easily when you watch the news or on line video's, but the fact is, most everyone has broken parts. Lord knows I have. Thats what keeps guys on the cutting edge of finding out what makes certain parts better for the consumer IMO. I thought this would be a cool thread for guys to put pics/videos of broken parts.............Seemed like an off topic that could make for an interesting thread. So many of these things get tucked away quietly, as if it's not ok to break anything. Nobody's perfect............Here is one from me to start it:

    In the search for speed/performance it seems that weak links always rear their head. Going fast is never easy or cheap, and when new ground is being broken, so are engines and drives.......

    When I first started running my 28 Bullet fast, I wanted to find out personally what would happen with different drives/ratios/etc...........

    This little video was one of the first attempts at 120 mph............

    http://video.google.com/videoplay?do...13584523999607

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    Senior Member DEMOMAN's Avatar
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    That was a pretty quick climb from 60 to 110 I thought I was watching a tach not a speedo.

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    TPI
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    You should see how fast it gets there now.........., That was an old video

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    Because KAP said so... 26 Redline's Avatar
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    Default Here is my WHOOOPS

    Why you don't launch a boat, and if you do, for god's sake pull out of it faster than I did
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    Unhappy

    I ve just got a good tale ,no pics

    A month ago my son calls "Hay dad cant get boat to run over 3000rpms "This is a 17ft ,2L Dad built 7500rpm motor ,with a 26 inch chopper ,with 100hrs or so .or so i thought ,i say idle home and i will have a look in the morning ,sounds like a stator no big deal .I had a quick look at the motor at 50hrs seemed ok ,plus have been OS and probably missed the 100 hr freshen up at the start of summer.
    Day 2 start the motor on the flush sounds doughey,test the stator tests ok ???? mmmm ,Number 2 son says whats all that metal on the ground from dad,oh ,The motor had an electrical fault had punched a rod thru the block and straight throught a switch box .A quick check on hr meter 180 hrs whoops ,This was a bitsa motor so i cant complain + If you saw the stock he was entertaining you wouldnt say nothing ,.I have a cunning plan and what Mom doesnt know wont hurt her

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    TPI
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    Quote Originally Posted by olmo40 View Post
    Day 2 start the motor on the flush sounds doughey,
    What does it mean to sound "doughey"

  8. #7
    Because KAP said so... 26 Redline's Avatar
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    Hey Kap, Where are your whoops photos.

    We know you have torn a few things up


  9. #8
    KAP
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    Quote Originally Posted by 26 Redline View Post
    Hey Kap, Where are your whoops photos.

    We know you have torn a few things up

    Hello Redline:

    This is an interesting thread with quite a few variables that come into play on the what, why, and how.

    As for photos I usually am not thinking about taking photos of parts gone bad---I believe most people want to lose those thoughts from their minds rather than re-live them.

    Yes! you know I have grenaded a few things but not my beautiful blue motor. The reason things go bad usually is because when we are in pursuit of speed or handling from our boats those design margins are exceeded hence the real life version of trial and error. In the boating sphere that means get your wallet out and the constant search for the better part or item ie... [aftermarket/custom] whatever it takes to solve the current weak link.

    I was reading the November 2008 edition of "Performance Boat Magazine" printed version and the interview with Mr. Fred Kiekhaefer and he hit the nail right on the head when he responded to one of the questions by the interviewor it directly relates to this threads premise.

    " A weak link is only weak when the tasks asked of it are beyond it's design specifications"---excerpt from PB magazine.
    That is a great summation. I was on the water this weekend and I observed what happens to a hull when it comes down stern low with the bow up high and smacking down coming off of a swell. [Not my boat]---The hull cracked--- striated the gel coat real bad almost 3 feet of it and the rub rail came off completely not to mention a big piece of the gelcoat came out like a puzzle piece. I was not thinking of photos trust me and the boat was not designed to be operated in that manner.

    As for photos most marine shops, crew chiefs, and manufacturers sponsoring boats in various classes could provide a ton of material. I would bet they could fill this site up with all the stuff gone bad it would be great to hear from them and would be very enlightening for all concerned.

    KAP

    P.S. Gary alone has probably a pick up truck full of stuff he killed in the pursuit of speed.
    Last edited by KAP; 10-12-2008 at 06:57 PM. Reason: typo

  10. #9
    TPI
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    You know, I had hoped this thread would open up more than it has, but like I said, "breaking parts and talking about it is taboo", It has been taboo for years,,,,,,,and It happens all the time, to the best of them. When I first started building engines for stern drives, I tried to save money by building engines with "oversees" parts in them. They were much cheaper to build, but when you really started to make power, they scattered every time. Since then, I refuse to use those parts and I have not had anything major break "motor related", except a belt or two here and there, or maybe rare lifter or valve issue(pretty rare but it has happened). As a builder, I could easily fill up the bed of a truck with broken parts from the last 18 years(just like KAP said)because the odds are just too high, due to the amount of parts I am dealing with on a daily basis, even as small as a broken valve cover stud(They like to break)................
    As a boater, I couldnt fill up a cereal bowl with broken parts, because I run my boat to the limit that I know its capeable of. I rarely break things at this point in my life due to my service intervals and because I don't feel the need to beat up my boat.

    These forums are a great avenue for consumer education and to allow "gear heads" to interact professionally. I say, If you have pics and video's, post them,,,,,,,,,,,,,its interesting when stuff breaks!
    Last edited by TPI; 10-12-2008 at 07:59 PM.

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    I don't have any pictures but I do have a story. Last February I was by myself doing some prop testing late in the day on Havasu. I was about 3 miles south of Copper Canyon on my way back to the marina about 45 min before dark. I lost a tooth in the upper gear set that bound up and then snapped my input shaft about 3" out of the back of the motor. I had to paddle for about an hour to get into a cove. There was no boat traffic in Feb. Holy crap it gets dark on that lake. No cell signal and surrounded by burros. Good thing the wife sent Sea Tow even if it was 3 hrs later.

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    Ultra 27 Shadow shippingguy's Avatar
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    Quote Originally Posted by DEMOMAN View Post
    I don't have any pictures but I do have a story. Last February I was by myself doing some prop testing late in the day on Havasu. I was about 3 miles south of Copper Canyon on my way back to the marina about 45 min before dark. I lost a tooth in the upper gear set that bound up and then snapped my input shaft about 3" out of the back of the motor. I had to paddle for about an hour to get into a cove. There was no boat traffic in Feb. Holy crap it gets dark on that lake. No cell signal and surrounded by burros. Good thing the wife sent Sea Tow even if it was 3 hrs later.
    WOW...You left out some of the best parts of that story. Come on fill everybody in on exactly what happened once at the cove.

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    Well this didn't come in the quest for more speed, actually happened while cruising, but nonetheless its definitely broken:
    #2 Rod is the broken one. #1 Rod took a beating as well.


  14. #13
    40' of Skater
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    My list is actually not to bad.....

    HTM - broken Bravo
    36 Spectre - 2 broken bravos
    40 Skater - dropped a lifter in a 15 hr Sterling motor, rods,camshaft, a few pistons. Smoked upper gearset in a #6, actually not my fault.

    And a few other little nic nacs....

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    TPI
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    Quote Originally Posted by 40FlatDeck View Post
    My list is actually not to bad.....

    HTM - broken Bravo
    36 Spectre - 2 broken bravos
    40 Skater - dropped a lifter in a 15 hr Sterling motor, rods,camshaft, a few pistons. Smoked upper gearset in a #6, actually not my fault.

    And a few other little nic nacs....
    You have associated yourself with some good quality names/parts. Sterling is one of the best,,,,,,,,,,,,,,,things happen. #6's are super strong, but they break.

    BTW, some of these INDY/NASCAR/NHRA engines/ transmissions have thousands of hours of r&d and they still let go. Sometimes on the first lap/pass, and these are HUGE names with unlimited budgets,,,,,very interesting stuff.

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