I THINK I BLEW MY ENGINE HELPPPP!!!!!!!!!!!11

[floridaboyz]

ok so the other day i took my stock exhaust off straight piped my back and put a muffler tip on it so im riding down the road and i see oil coming out my cap im almost home so i try and make it there i succeed so the next day i leave to get oil and my bike makes a weird ticking noise and wont go over 50 i get going a lil ways and it sounds like a hammer is in my engine hitting back and forth it cuts off and i glide to the side of the road i take my oil cap off and its bone dry i start it up again and it still sounds like a hammer hitting back and forth in my engine any advice its an 05 gs500f

[Janx101]

expect the engine boys be along soon... but... even hammer? .. .like while it is turning over... is it regular?... or just all messed up and uneven beat? ...

that type of hammer noise in a car engine i would think crank/bearings/rods . 

[adidasguy]

Hammer sound can be the counter balance bearings going out (err, gone by now).
I had it happen to Junior. It really sounded like a hammer hitting in the case. Loudest on the lower front where it is located.

I suppose it also might be a broken rod or piston.

Probably open it up just for the experience and be prepared to buy a new engine.

I might, too late, say that you should not have started the engine when the oil was bone dry.
No oil is about the only way you can kill a GS500 engine.

[Calpantera]

When you say you saw oil coming out of the cap do you mean the oil filler cap? Was it loose? You should have stopped right away to check it and tighten it. Running an engine low on oil is a recipe for a blown engine, tough lesson to learn..
Of course if there was so much pressure in the crackcase that it was blowing out somewhere else or even at the cap then you might have had a broken ring, piston or burned a hole in a piston or cam issue and it was going to go anyway.

[junk301]

yeah something I learned the hard way on my old ninja 250. these small engines will be destroyed if little to no oil is in the engine. you can get away with a bit in a car however. not sure if its worth repairing but definitely worth opening it up and trying to rebuild it. depending if its easily available just swap in a used engine.

[weedahoe]

ok so the other day i took my stock exhaust off straight piped my back and put a muffler tip on it so im riding down the road and i see oil coming out my cap im almost home so i try and make it there i succeed so the next day i leave to get oil and my bike makes a weird ticking noise and wont go over 50 i get going a lil ways and it sounds like a hammer is in my engine hitting back and forth it cuts off and i glide to the side of the road i take my oil cap off and its bone dry i start it up again and it still sounds like a hammer hitting back and forth in my engine any advice its an 05 gs500f

Where are you located

[BockinBboy]

Probably not far from you... His first post indicates Jacksonville, FL

- Bboy

[weedahoe]

I missed his first post but did check his profile and see his IP location. I thought Jacksonville but didnt want to assume. Thats about 3.5 hours away. He might not want to travel that far to have someone look at it

[The Buddha]

Straight pipe ? hammering noise ? you think he broke a valve ?
I have had Idiot #1 do that to a savage.

Cool.
Buddha.

[Calpantera]

Straight pipe ? hammering noise ? you think he broke a valve ?
I have had Idiot #1 do that to a savage.

Cool.
Buddha.

How does a straight pipe cause valve breakage?

[floridaboyz]

weedahoe im in jacksonville and i can crank the bike and it will idle but it sounds horrible like its about to blow up and a loud beating noise like i said when its running hard to explain kinda like a huge piece of metal is in there jus slinging around hitting the motor case im scared to run it anymore to listen for the noise im hoping it isnt a blown engine as i dont have the money to replace it and the worse part is its my only vehicle it sux walking

[john]

Straight pipe ? hammering noise ? you think he broke a valve ?
I have had Idiot #1 do that to a savage.

Cool.
Buddha.

How does a straight pipe cause valve breakage?

Yea.  I wanna know too.

[The Buddha]

Straight pipe ? hammering noise ? you think he broke a valve ?
I have had Idiot #1 do that to a savage.

Cool.
Buddha.

How does a straight pipe cause valve breakage?

If you have cold air enter the head when you shut it off you will warp or bend a vlave. That will cause it to break off when you start it up.
Of course I have never ever seen it happen on a GS, even when Davipu cut it off 6" before the Y part and ran it east coast to west coast and back in the span of 2 weeks.
I also am not sure the my Idiot friend had that as the primary reason ... he was sucking air in the vaccum fitting in teh carb, and had a hacked off exhaust on his savage and I met him years after he had broken it.

Cool.
Buddha.

[floridaboyz]

well also it rained pretty hard here one night and after i crunk my bike there was a ton of water in my pipe tht shot out thts when it started making a ticking noise but i though tht the no oil would have caused my problem

[Calpantera]

If you have cold air enter the head when you shut it off you will warp or bend a vlave. That will cause it to break off when you start it up.
Of course I have never ever seen it happen on a GS, even when Davipu cut it off 6" before the Y part and ran it east coast to west coast and back in the span of 2 weeks.
I also am not sure the my Idiot friend had that as the primary reason ... he was sucking air in the vaccum fitting in teh carb, and had a hacked off exhaust on his savage and I met him years after he had broken it.
Cool.
Buddha.

IMHO this is an old wives tale (Is that the proper term there?)

Supposedly the theory is that cold air will warp the valve stem on the exhaust valve because it causes it to cool to quickly, I personally have run open headers on far too many engines in my lifetime and have never had an issue. Heck I have even ran open heads on an engine once and the only thing that happened was an engine compartment fire. I used that same engine in a different hot rod and ended up blowing the bottom end and not the top end. The closest I have heard of anything like this happening is to a friend of a friend's boat, but that was caused by a faulty water cooled exhaust that sucked in water and warped a head and possibly a few valve stems in the process. Again JMHO..

[john]

well also it rained pretty hard here one night and after i crunk my bike there was a ton of water in my pipe tht shot out thts when it started making a ticking noise but i though tht the no oil would have caused my problem

The plot thickens...

[floridaboyz]

I just really hope I'm not totally screwed so say it was something simple like a broke piston how much would I be looking at to spend to fix it and how could I tell if thts what it was

[oz353]

Well how often do you redline your bike? As you mentioned in the ideal engine speed thread.

My sugesstion is to go buy a repair manual, buy /borrow the tools listed then get wrenching.

Unfortunately there will be no easy fix for what you have described aside from complete engine replacement. Incedentaly replacing the engine is likely to be the cheapest way to go. Check the for sale section often and start scouring junk yards and bike breakers.

[The Buddha]

If you have cold air enter the head when you shut it off you will warp or bend a vlave. That will cause it to break off when you start it up.
Of course I have never ever seen it happen on a GS, even when Davipu cut it off 6" before the Y part and ran it east coast to west coast and back in the span of 2 weeks.
I also am not sure the my Idiot friend had that as the primary reason ... he was sucking air in the vaccum fitting in teh carb, and had a hacked off exhaust on his savage and I met him years after he had broken it.
Cool.
Buddha.

IMHO this is an old wives tale (Is that the proper term there?)

Supposedly the theory is that cold air will warp the valve stem on the exhaust valve because it causes it to cool to quickly, I personally have run open headers on far too many engines in my lifetime and have never had an issue. Heck I have even ran open heads on an engine once and the only thing that happened was an engine compartment fire. I used that same engine in a different hot rod and ended up blowing the bottom end and not the top end. The closest I have heard of anything like this happening is to a friend of a friend's boat, but that was caused by a faulty water cooled exhaust that sucked in water and warped a head and possibly a few valve stems in the process. Again JMHO..

Its an old buddhist tale ... he he.
The easiest way to warp a valve is to have a header leak or a header crack ... I had a volvo with that problem ...
Cool.
Buddha.

[floridaboyz]

i only redline every so often and my brother in law tld me i might only have to rebuild the top half and it would probably be like 400 bucks is tht true?