Sudden hard knocking, dies at idle. Advice?
#31
Did u check any of the cylinders if it had excessive fuel, at the time u first took your engine apart? Hydro-lock caused my engine to knock before, but nothing damaged. Had to let it sit for awhile, sometimes up to 3 days before the engine would crank over. Bad FPR was the culprit. I replaced it and now everything been fine for 7,000 miles already.
FPR can have too much build-ups causing some cylinders to flood. You did mention revving your engine too. And hand crank pshhh sound, did it sound like liquid squirting out?
Anyways, I'm not saying it's the problem, but it's something to look into.
FPR can have too much build-ups causing some cylinders to flood. You did mention revving your engine too. And hand crank pshhh sound, did it sound like liquid squirting out?
Anyways, I'm not saying it's the problem, but it's something to look into.
#33
your intake valve or the cover/head/whatever its called? if its really clean it can be water/coolant but the outside two look fairly similar. is your bike running lean?
if the piston went that high i think it would show on the spark plug first, and probably would move a bit on the crankshaft.
something does look wrong with that cylinder though. if thats rust on the plug it may have been hydro locked with coolant, probably not though. who knows
if the piston went that high i think it would show on the spark plug first, and probably would move a bit on the crankshaft.
something does look wrong with that cylinder though. if thats rust on the plug it may have been hydro locked with coolant, probably not though. who knows
#34
Hydro-lock can be caused by a few things. You would have to read up on it to better understand for yourself. sorry I'm not fully familiar with the things that would cause it, so I don't want to confuse you or give you inaccurate details. but check out this video a little bit about it. but at this point, after the bikes been sitting, if it was hydro-locked, the liquid in there is probably already gone so you would not be able to tell.
Last edited by RiceBoy; 02-02-2013 at 12:16 AM.
#35
i am not trying to convince you that it's bearing wear... i am just passing on information that i know and have experienced. this is not all cases but could account for what you experienced... iinteresting thread keep us updated...
good luck hope you get running soon
#36
Well I pulled the bottom oil pan off, there was some coolant bubbling above the oil coating on the pan. Could have been from dis-assembly, but regardless the inside of the bottom end looks pretty worn. There's metal scratching in multiple places, and I'm pretty sure part of one the crankshaft weights or w/e got ground off somehow. The gears and all look fine, but the crank and general lower end housing looks beat up on the inside. I'm going to call it and say she's seen her last ride. Rest in peace "Hornet". I'm looking at replacement engines on eBay. I found what appears to be a good engine, only 3k miles, track tested before dismounted. $855 + Free shipping (I think I have to pick it up at a freight station?). But I wanted some opinions on it, and the idea of eBay engines before I go ahead with it. This will be my savings so I have to choose wisely! And I want it to last. Here's the link, all opinions wanted/appreciated. Thanks everyone
01 06 Honda F4i Engine Motor Runs and Shifts Perfect 3K Mile Motor | eBay
01 06 Honda F4i Engine Motor Runs and Shifts Perfect 3K Mile Motor | eBay
#37
it has low miles that is a great thing... i think cost wise you can do better,BUT
you do get what you pay for .. and the seller seems very open to resolve issues if you have any...
you should take pictures of your engine show us what your looking at....
the crank weight lobes are ground down at the factory for clearance they are not rounded ends.....
i am curious to see what you have going on in the engine
you do get what you pay for .. and the seller seems very open to resolve issues if you have any...
you should take pictures of your engine show us what your looking at....
the crank weight lobes are ground down at the factory for clearance they are not rounded ends.....
i am curious to see what you have going on in the engine
#40
Even if it isn't badly damaged, a gasket set is $260. I know it needs a valve job $400, so even if all I had was valve noise (which I doubt) I'm looking at $660 for required parts and labor on a 24k mile engine which I still don't know what's wrong with. If it is crank/rod related it would be more than I can afford. So that $850 3k mile engine 'seems' like a pretty sweet deal to me.