SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: Brad @ SCJB on November 27, 2007, 11:19:41 PM
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Here it is...in all its glory...
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Bilge full of metal...
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thats whack yo!
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Sucks...
I have a 460 Block i will be willing to part with for a small amount of $$
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F**k, you could have warned a guy, almost lost my dinner after looking at all that carnage...
my condolences go out to you, she looked like a nice motor who didn't deserve this fate.
RIP motor... :'(
Rebel
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WOW Brad. I feel for ya.
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brad, which block i just gave a dove block away to somebody if you need let me know PM and i will see if i can get it back good luck, oh there goes the xmas gift you were going to get her now, :o :o :o
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Wow carnage. Hydro Lock?
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Wow carnage. Hydro Lock?
i dont think so, if you look at the crank journal and rod caps they look like they got hot wich to me means clearances or oil flow.look closely at the big end of the rod its black(https://www.socaljetboats.com/index.php?action=dlattach;topic=2071.0;attach=8078;image)
(https://www.socaljetboats.com/index.php?action=dlattach;topic=2071.0;attach=8084;image)when looking at the head gaskets i cant see where they are blown, although, i can only see a portion of it.
then look at the crank journal its scored like a bearing spun, i would like to see a pic of the bearings
(https://www.socaljetboats.com/index.php?action=dlattach;topic=2071.0;attach=8066;image)
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Lean, Hot, and Tight baby!
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AT least the heads look good ;D
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Yup thats a FORD for ya! ;D
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Yup thats a FORD for ya! ;D
oh boy, here we go
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Yup thats a FORD for ya! ;D
Yeah and here's one more ford thats gonna be out there :o
The Fantasy Ford BB 466 ;) Leaving the Chebby's in da weeds and towing them back to the launch :o
Go home and come back Blue Oval Baby.
2sav
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its all good! ;D
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its all good! ;D
now its my turn >:D
we all know why you got the charging penalty, but, for those who dont that 505 chebby cant keep up with my 502 ford so you needed a head start >:D
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Damn son, that looks worse than patches motor. Sorry. RIP 460
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Brad I am actually coming to the OC tomorrow, if you need a "69 Merc Block, make me an offer and I'll bring it along.
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Brad I am actually coming to the OC tomorrow, if you need a "69 Merc Block, make me an offer and I'll bring it along.
I'm gunna pass...but thanks for the offer. I'm picking up the next victim (block) this weekend >:D
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not a problem... Going with another 460?
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now its my turn
we all know why you got the charging penalty, but, for those who dont that 505 chebby cant keep up with my 502 ford so you needed a head start
Its all in the turning buddy! ;D
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Its all in the turning buddy! ;D
yeah, i know :-[ :-[ :'( :'(
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Damn!!!
Was it a long tow back?
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Brad, sorry to learn of this. Based on the images posted, my thought is that the cast rebuilder piston let go first, and was cause for the rest of the parts to be put to death.
We can do a motor for you if you want, or perhpas at least part of it and/or hope that you make use of some of our prepped parts in your next engine....or at least call for advice.
LO
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Wow thats cool, Free advice ;D
Hell i need some of that >:D
2sav
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some fords will sometimes die but we always come back and kick more bowtie
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some fords will sometimes die but we always come back and kick more bowtie
Thats good, im stealing it for my sig line ;D
2sav
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so cause was??? Over-rev? Over heat? You're leaving me cliff hanging man!
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so cause was??? Over-rev? Over heat? You're leaving me cliff hanging man!
dont know...i havent even gone into the garage since i took those pictures.
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Damn son, that looks worse than patches motor. Sorry. RIP 460
That's what I'm thinking as I'm looking thru these pics; compared to this, I got off good.
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Now its time to get these motors back together and back in the boats.
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Sorry to see this Brad; although flytime told me about it, I didn't realize it was this bad.
You sure that wasn't a 455 ???
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i would like to see a pic of the bearings
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I think there are remnants of bearings in this pic >:D Can you tell anything from that :o ?
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Could have been the Pistons, OR, the stock, non polished, BROACHED, LO PO Rods(I can tell at a glance). If it was the Piston, The Rod wasn't far behind. They aren't really designed for the use a Jet boat will put them thru in this form(loading and unloading at 6500+ rpm is really stressful). Al least, switch to a Rod that is Polished and Shotpeened(properly), and has SPOT FACING for the Bolt seat. PLEASE use an ARP bolt(doesn't have to be the 'Wave Loc' type, just 8740 is a real upgrade) and kmake sure the Rods are prepped. They'll last like that a good, long while under hard use. JMO. RR
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the final conclusion is that it spun a bearing.....
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About what RPM were you running?
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About what RPM were you running?
4800-ish and 67mph was the max gps speed before it let go
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67mph not bad for first (and last) outing; is it?
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the final conclusion is that it spun a bearing.....
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The question being did it fail due to Oil starvation, or did it spin due to the Rod Bolt stretching prior to failing and thus creating an environment conducive to the bearing spinning(relieving 'crush')? Something to think about. RR
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67mph not bad for first (and last) outing; is it?
for a pretty much 'junk yard motor' ....and a boat that was put together in 3 weeks.....i am happy.
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i think you can R&R that rod..... ::)
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wow thats a heart breaker i like the way you guys jump to each outhers aid if i move im comin to cali save me a spot on the beach lol
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last year I bought my first jet boat a 1978 nordic the guy took me out and ran the living hell out of it I bought it cause my wife vetoed the harley and what happens the second time out it dropped an exhaust valve basically looked like the same bottom end damage as yours plus a junk head so I spent all of winter last year and up to this point to build a nice 460 there is a company on ebay perfectcrank that sells bbf 6.605 h beam rods for 259 bucks with capscrew arp bolts and eagle sells the cast steel cranks for 209 bucks they claim good to 750 horsepower and a hell of a lot stronger than oe pieces.I have always been a chevy guy till this boat but after building this one I see bbf make big torque ive built hundreds of motors and seen this before several times by the look of the rod and bearing pieces there was a starvation,possibly momentary lack of oil and you lost a bearing first then the piston came apart cast pistons are weak ford used a forged piston in the truck motors and they are cheap i paid 31 bucks a piece for em and they are strong as hell to the other thing I found after tons of research is a main girdle that ties all the main caps together for about 70 bucks stops cap walk bbf are very prone to thismy problem with my boat now is what some of you guys called cavitation I havent got to thay problem yet hope this helps you man I know all to well how this carnage feels......
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I was just checking out this engine damage when I noticed the Milodon oil pan. I wonder if it was causing the same oil pressure drop mine experianced.
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I was just checking out this engine damage when I noticed the Milodon oil pan. I wonder if it was causing the same oil pressure drop mine experianced.
the pan was repaired and put on the new motor (thanks tom!) and i dont have any oiling issues. that motor was a junk yard motor we threw in a boat and put the pedal to the metal for several laps with no mercy. it didnt stand a chance.
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My junkyard motor did pretty much the same thing without the block window. The bore was ruined though from the rod smacking around. So got a good deal on a long block from a local builder. I'm really nervous about running stocker rods & pistons lol. I never spin more than 4800 anyway because of my impellor cut. Need to turn it into a stroker. I've been talking to LakesOnly about it. And then eventually bolting on a blower!!! Yeah Baby!!! ;D