BannedCR500Riders.com

Engine pictured is a Honda CX500 motor. Bulletproof engines, they'll run forever. Anyone ever seen an engine fail in this manner? What could cause it?

mmm not sure looks hot but.

No other thoughts guys? This one rouses my curiosity

Detonation or hydraulic is the only thing that comes to mind...

CX500 Turbo model?

FZ1426 wrote:CX500 Turbo model?

Nope. N/A motor.


Bob, wouldnt detonation pit the piston/head?

The failure isnt the sleeve, its the aluminum jacket holding the sleeve.

If it detonated really hard, and either lifted the head right there or dislodged the gasket, the pressure would be directed right at the aluminum jacket.

If coolant got into the cylinder and you hit the starter button, it might have done the same thing.

What does the H/G look like? Do you still have it.

Was it running when it happened, or did it run fine, was parked... and then ran like shit on the restart?

Use an end mill and plunge into the side of the sleeve and the water jacket casing only enough to retail an aluminum dowell, it's the same thing we do with the Honda car blocks that aren't running darton sleeve packs. I'll post pics in a dew days

my guess would be a blown head gasket but just a slight leak blowing the exploding gas forcefully through causing great heat enough to melt the ali block like a heat gun on plastic you ever seen how it melts it till it cracks..

too much nitrous

Roostius_Maximus wrote:Use an end mill and plunge into the side of the sleeve and the water jacket casing only enough to retail an aluminum dowell, it's the same thing we do with the Honda car blocks that aren't running darton sleeve packs. I'll post pics in a dew days

So youre saying the motor is possibly saveable?

AlisoBob wrote:The failure isnt the sleeve, its the aluminum jacket holding the sleeve.

If it detonated really hard, and either lifted the head right there or dislodged the gasket, the pressure would be directed right at the aluminum jacket.

If coolant got into the cylinder and you hit the starter button, it might have done the same thing.

What does the H/G look like? Do you still have it.

Was it running when it happened, or did it run fine, was parked... and then ran like shit on the restart?

Dont know. A guy on another forum bought the bike knowing it had a bad motor. The discussion is speculation, mostly. The P/O said that it began to run really weak.

I mainly posted this as just something that I thought intriguing, in the hopes of learning something


:

I'd make a flanged sleeve and run that beotch if its something hellish expensive to replace

Roostius_Maximus wrote:I'd make a flanged sleeve and run that beotch if its something hellish expensive to replace

its not. complete bikes can be had for 400 bucks. not really worth fixing at this point, but someday it would be.

Britinmanchester would pound a wedge into the case to close the split, slap it back together... and run it!!

NightBiker07 wrote:

Roostius_Maximus wrote:I'd make a flanged sleeve and run that beotch if its something hellish expensive to replace

its not. complete bikes can be had for 400 bucks. not really worth fixing at this point, but someday it would be.

i got ya, I'd set it on a back shelf and someday do a darton style sleeve like this on it....


http://www.google.ca/search?q=darton+sl ... 0gHfyfXEAw

in these pics you can see where the honda blocks with the floating sleeve like that one are cut down and a replacement with support is added.
It wouldn't need to be their sleeve, but the same idea

My buddy Dan is the Honda sleeve master....

http://www.bensonsmachine.com/benson-sleeves.html