Kawasaki Sportsbike Riders Club - Australia - Online Forum

have had this awhile, dont know how many of you have seen it


http://downwardspiral.net/pictures/Moto ... idiots.jpg


I always think of this when I hear people obsessing over the slightest thing with their engines.

i hadnt seen it.

its a very interesting article.

ive always figured engines were tougher than we give them credit for.
im still not going to "test" mine like that though

That maltreatment might not have caused that engine to go bang there and then, but it's a fair bet it's brought a rebuild about 30,000km closer.

damm!! i still dont think i'll try it.

a friend at work used to work for holden, he was telling me about the commodore's gearbox being tested,
- hold foot flat to floor whole time...
- select drive (burnouts)
- neutral
- reverse
-neutral
- drive

repeatedly for about 5 minutes...

once again, its not something you'd want to try is it?

interesting..but been posted up before here

article is from UK 'BIKE' mag

cheers

Wattie wrote:damm!! i still dont think i'll try it.

a friend at work used to work for holden, he was telling me about the commodore's gearbox being tested,
- hold foot flat to floor whole time...
- select drive (burnouts)
- neutral
- reverse
-neutral
- drive

repeatedly for about 5 minutes...

once again, its not something you'd want to try is it?

Wattie
its not done for 5 minutes.....
its done until auto gearbox...goes bang
(or diff does or engine does)

one of my jobs at Holden was signing out the bits
for testing at Lang Lang (or Exp Eng) at the 'Bend
and I saw it happening! mostly the auto boxes went bang
but now and then ..an engine
but
what would one expect if you run if a full throttle (WOT)
with a load (trans in drive) ..then no load (neutral) then a load
(reverse) ...impressive when an engine goes bang
especially a large V8


cheers

Smitty wrote:

Wattie wrote:damm!! i still dont think i'll try it.

a friend at work used to work for holden, he was telling me about the commodore's gearbox being tested,
- hold foot flat to floor whole time...
- select drive (burnouts)
- neutral
- reverse
-neutral
- drive

repeatedly for about 5 minutes...

once again, its not something you'd want to try is it?

Wattie
its not done for 5 minutes.....
its done until auto gearbox...goes bang
(or diff does or engine does)

one of my jobs at Holden was signing out the bits
for testing at Lang Lang (or Exp Eng) at the 'Bend
and I saw it happening! mostly the auto boxes went bang
but now and then ..an engine
but
what would one expect if you run if a full throttle (WOT)
with a load (trans in drive) ..then no load (neutral) then a load
(reverse) ...impressive when an engine goes bang
especially a large V8


cheers

i think i'd cry...

So Nikos, exactly did you destroy your engine Hoon

yea it was a zx6r wasnt it?? i reckon we discussed it in here a few times over the years..makes me feel a lil better abt missing an oil change by 100km...

Hey Smitty, I bet the old holden banjo (or bang goes) diffs wouldn't put up with that treatment for to long....sent many of those suckers to an early grave in me younger days. A tip from experience, when a non limited slip diff starts acting like a limited slip diff during tyre cooking experiments, back off the gas, check 2 see that you have the tow cable in the back, place your bets with ya mates on how far ya gunna get before ya need the cable

Smitty wrote:...impressive when an engine goes bang
especially a large V8

When I was in the Army back in the 80s we had a Leopard Tank snap a crankshaft because some Noddy hadn't cleared the water out the cylinders before starting.

The correct procedure was to hold the throttle linkage up and crank the engine over. If a inlet manifold had a water leak (something which happened every now and again) the linkage held in that position locked the exhaust valves open and the engine cranking over would push the water out the exhaust.

If you didn't do this (as per the Noddy) you'd have a situation called hydrostatic lock where the piston coming up would hit water before it had finished its vertical travel. Water doesn't compress.

The Leopard 2 has a 36 litre multi-fuel V10 cranked over at startup by 800A/h of batteries. The crankshafts are pretty hefty, approx 125-150mm in diameter, and it snapped like it was made of very fresh liquorice.

Now THAT would have been impressive .

We had a big International truck which stuck a piston out through the water jacket post-rebuild. That was pretty acoustically impressive as well, I think the guy starting it up needed an underwear change .

YAPPA wrote:Hey Smitty, I bet the old holden banjo (or bang goes) diffs wouldn't put up with that treatment for to long....sent many of those suckers to an early grave in me younger days. A tip from experience, when a non limited slip diff starts acting like a limited slip diff during tyre cooking experiments, back off the gas, check 2 see that you have the tow cable in the back, place your bets with ya mates on how far ya gunna get before ya need the cable

yappa
spot on mate
the auto SLR5000 Torrie with the banjo
kept the Holden diff plant ...working overtime

me?
broke about 9 or 10 of 'em in my aaah ...youth
a couple in the Torrie especially at calder
(worst seemed to be the 3.08 ratio, got better when I went 3.55:1)

also I blew one to little bits on my HR, broke both axles too
in a 'look... tyre smoke girls!' 6000 rpm clutch dump
the road surface went from smooth mix to the rough stuff
...bang

cheers

Smitty wrote:

YAPPA wrote:Hey Smitty, I bet the old holden banjo (or bang goes) diffs wouldn't put up with that treatment for to long....sent many of those suckers to an early grave in me younger days. A tip from experience, when a non limited slip diff starts acting like a limited slip diff during tyre cooking experiments, back off the gas, check 2 see that you have the tow cable in the back, place your bets with ya mates on how far ya gunna get before ya need the cable

yappa
spot on mate
the auto SLR5000 Torrie with the banjo
kept the Holden diff plant ...working overtime

me?
broke about 9 or 10 of 'em in my aaah ...youth
a couple in the Torrie especially at calder
(worst seemed to be the 3.08 ratio, got better when I went 3.55:1)

also I blew one to little bits on my HR, broke both axles too
in a 'look... tyre smoke girls!' 6000 rpm clutch dump
the road surface went from smooth mix to the rough stuff
...bang

cheers

bullshit smitty..u were never young enough to be a hoon......


i wonder if in 70yrs ppl will say that abt me just like they do abt smitty??

Ratmick wrote:

Smitty wrote:...impressive when an engine goes bang
especially a large V8

We had a big International truck which stuck a piston out through the water jacket post-rebuild. That was pretty acoustcally impressive as well, I think the guy starting it up needed an underwear change .

When I was coachbuilding at greyhound we had a freshly built detroit diesel supercharged turboed v8 in a coach that pumps out about 600-700 ponies, anyways they were just setting everything back up & were fuggen round with the jacobs brake settings & sumthing shat big time which caused this thing to to drink fuel like a kwaka club drinks piss at a gp meeting. they red line at about 3500 rpm & this thing was revving at around 8000 heads popped up from everywhere within the workshop, mechanics were running round screaming cut the fucking fuel line & frantically looking for a pair of side cutters. At this point it all seemed to go into slow motion, you could hear the thing start groaning & knocking which progressivly got louder & louder ( everyone just said fucking RUN at this point) Until it made the biggest fuken bang I have ever heard a bit of machinery make followed by the unmistakable sound of big ends, conrods & pistons shattering through whatever was in it's path as it made it's way out into the atmosphere like shrapnell!! at the end of it all you couldn't see 5 metres in front of you from the amount of diesel smoke, they were $45000 down for the motor, another$7000 for the roadranger box that had been anialated by the shrapnel, $2000 worth of panel damage from the same bits of shrapnel & 3 mechanics were politely asked to remove their tools & themselves from the workshop within the hour.......come to think of it, they weren't asked politely at all exciting stuff

hey yappa, isnt that what happens to diesel engines if you chuck petrol in it??