FZ1 problems

[OTB]

oil in coolent tank means only come from a couple of sources, none of them good.

Oil is getting onto coolent passages..either through a blown head or cylinder gasget, a blown shaft seal somewhere, or he did not have enough antifreeze over winter and there is a crack somewhere in the block, cylinder or head. The presence of coolent leaks near the intakes would lead me to opine that a cylinderhead gasket leak, crack, or warpage has occured.

But then, diagnosing stuff over the internet is fraught with dangers..........

[6doublefive321]

I know nothing about his particular bike, but my guess is that the oil cooler is a counter-current heat exchanger using coolant as the cooling medium. The damage to the unit probably punctured the cooling jacket, so now there is oil in the coolant and coolant in the oil. Whatever the case, it sounds like a mess. Lots of flushing out will be required at this point.

[Gas Man]

Originally Posted by 6doublefive321

I know nothing about his particular bike, but my guess is that the oil cooler is a counter-current heat exchanger using coolant as the cooling medium. The damage to the unit probably punctured the cooling jacket, so now there is oil in the coolant and coolant in the oil. Whatever the case, it sounds like a mess. Lots of flushing out will be required at this point.

This is something at what I was thinking.

OTB that would obviously be the worse case for sure.

[Cutty72]

Originally Posted by 6doublefive321

I know nothing about his particular bike, but my guess is that the oil cooler is a counter-current heat exchanger using coolant as the cooling medium. The damage to the unit probably punctured the cooling jacket, so now there is oil in the coolant and coolant in the oil. Whatever the case, it sounds like a mess. Lots of flushing out will be required at this point.

This is what we are thinking/hoping, as it is the easiest fix.

Sadly, I won't find out the true answer for another 2 weeks when I get back home.

[OTB]

Originally Posted by 6doublefive321

I know nothing about his particular bike, but my guess is that the oil cooler is a counter-current heat exchanger using coolant as the cooling medium. The damage to the unit probably punctured the cooling jacket, so now there is oil in the coolant and coolant in the oil. Whatever the case, it sounds like a mess. Lots of flushing out will be required at this point.

Shame on me, did some research, and yes, indeedy, the oil cooler has a coolent circuit on the FZ and it would appear that you have performed a Vulcan Mind Meld on your FZ, mixing the two fluids and forming a noxious mess in your crankcase . Much flushing of the oil sump and the coolent tank, radiator and galleries will be called for.......

[Gas Man]

Flushing... that would be after you ensure its all fixed!

Better buy the fluids in bulk and plan on doing it a few times.