Need some expert advice

[Odin]

Ok I was racing and at about 150 it started making a sound like a knock . It lost a lot of power and knocked like crazy. I had it towed and have torn down the engine. No piston ring damage, no valve damage that I can see, connecting rods good. So now that I have torn the engine down on the advise of another Busa owner who swore I threw a rod, any idea of why I would have had a knock, even when I pulled the bike over and started it again, it knocked like crazy. I did notice the more the load on the engine louder the knock.

 

[Odin]

Never mind as I am posting the thread , my friend I believe found the problem.

 

[Mr Brown]

Rod bearing.

 

[Odin]

correct it was a rod bearing

 

[WuzzaCBXRider]

correct it was a rod bearing

Yeah but now, what damage did the knocking rod do? Good luck.

 

[c10]

knock knock. who's there? Rod. Rod who? K'CHUNK CLANG ...

Knock knock . Who's there ? Not Rod anymore .

 

[Odin]

I bought the bike used and didn't even notice until now, at some point they removed the oil cooler and plugged the engine side. Wondering if that added to problems in the engine at this point. Your right I hope it didn't ruin the crank but guess I will find out after I pull it.

 

[POWERHOUSE]

Pull the oil filter and check to see if the oil gallery jet is still screwed into the block . . . if it is, that would be a problem with the oil cooler removed and the passages blocked . . .

 

[Odin]

Frank they put on a add on to angle the filter away from the custom exhaust. From looking at stock pics and mine I think they also added a custom oil pan that doesn't even have the hook up for the oil cooler. Pic of it here if you can confirm that.

 

[jermzfree]

Why was the oil cooler removed?

 

[Odin]

No idea I bought it couple of years back when my son started driving my ZX-14 , the bike has a lot of mods on it. Never realized they removed the oil cooler, change the oil all the time but never had a Hayabusa before this to know something was missing.

 

[michael parris heuberger]

No idea I bought it couple of years back when my son started driving my ZX-14 , the bike has a lot of mods on it. Never realized they removed the oil cooler, change the oil all the time but never had a Hayabusa before this to know something was missing.

Hi. You do not need the oil cooler. That looks like an after market oil pan.

 

[Odin]

I believe the oil gallery jet screw has been removed.

 

[Odin]

Good to hear I don't need it, won't worry about buying one then.

 

[WuzzaCBXRider]

Good to hear I don't need it, won't worry about buying one then.

Well, need can mean more than one thing. Why did Suzuki design it for one?

 

[Mr Brown]

Flat pan and oil cooler removed? It's made a pass or two down a strip.

 

[POWERHOUSE]

The oil gallery jet - or "diverter" jet diverts oil from the main galley to the oil cooler. Hahn Racecraft gives you some fittings and about three feet of hose that loops all the way around the back of the motor and makes a big loop from the oil cooler outlet fitting to the oil cooler return; some sidewinder manufacturers give you two fittings and a short section of hose to do the same thing. The third method is to remove the dam jet and use block offs where both cooler fittings were. This is what is done on 99% of turbo installs.

 

[Odin]

engine is apart...what is the opinion on my crankshaft, is it shot?

 

[Johnnie Phatt]

Well it's not good. I would think it could be saved. Consult a good rebuild shop. With race engine experience.

 

[ColdBusa]

Get a good shop to polish that up and see how it looks. As long as theres no gouges left over and they don't have to take off too much material that you can't get the proper clearance needed with a new bearing, you should be good to go. A micrometer for the crank and a bore bulge for the rod will help you choose the proper bearing size. It's also in the shop manual.