serius blk
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posted February 20, 2007 09:17 AM
zx14 motor issues. I need some help from you mechanics
Alright the bike ran out of oil as i was riding due to the bike bottoming out on a raised portion of pavement on the highway. plug most have shot out due to the threads being ripped out. Also the oil pressure light just flashed on. I would think it would have stayed on but it didnt. Anyway i had some lucas oil stabilzer in it when it happen. Now im trying to get things back on the rode. Ive already pulled the clutch ck and relubed everything. The bike took a minute to start but runs. No missing or back firing. Im hearing a knocking noice from the top end of the motor. i used a scope to listen closer to find what the problem could be. Its not coming from the bottom end. That sounds quit. Under the valve cover is where the sound is the loudest. Bike with a load on it doesnt rev the same. it revs up but not like before. Also the knocking sounds like a dry lifter. When the bike is in gear and with me on puting a load on it as if i were to spin the rear wheel. The knocking really becomes noticable. I was reading in my manuel and it was talking about a possible valve problem. It doesnt say anything about the lifter besides it could be worn. My question is are the lifters solid and can the pistons and rods come out without spliting the cases. Thanks for the help.
  
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supra5677
Pro
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posted February 20, 2007 10:18 AM
I wasnt aware this motor had lifters
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serius blk
Zone Head
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posted February 20, 2007 10:42 AM
yea the manual calls them lifters but the parts diagram calls them tappets
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MadMike
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posted February 20, 2007 12:00 PM
to me it sounds like you spun a bearing...
when you put the new oil pan on did you find any metal shavings? have you changed your oil since you put the bike back together? if you you need to and see if you have any gold in your pan...
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osti33
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posted February 20, 2007 01:20 PM
Sounds like a bearing to me also.
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1badzx12r
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posted February 20, 2007 01:46 PM
if its a cam bearing... which most likely...gonna need a head... no bearing i don't believe
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serius blk
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posted February 20, 2007 02:13 PM
well i put some new oil in it. I let the oil out and it looked like water and was a grey/white color. I talked to one of the guys at coby adams shop. He said alot of times theyll spin a bearing and the noise would be the piston hiting the valve. He said hes done the work on some busas that did this. Wouldnt the bottom end be making some kind of noise. What it basicly comes down to is the motor is going to have to come down. It would be half ass to take the head off and not ck the bearings.
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NINJA12
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posted February 21, 2007 04:23 AM
pull the oil pan, it is the only way to find out.
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oldkawboy
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posted February 21, 2007 02:57 PM
One more thing........
If the pavement is raised to the point of ripping your drain plug out, I'd contact the city or state highway department.
Just a few weeks ago a local guy on a 'Busa hit a bad pothole in the city and bent both rims. He made a claim and an investigation proved him right and the city bought him two new wheels and tires.
Just a thought.
Dan
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1BADZX12R
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posted February 21, 2007 05:15 PM
well i put some new oil in it. I let the oil out and it looked like water and was a grey/white color.
you got big problems
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Tool man
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posted February 21, 2007 07:02 PM
quote:
well i put some new oil in it. I let the oil out and it looked like water and was a grey/white color.
you got big problems
+1 start the tear down NOW. Do not ride the bike. It could sieze up and spit you off.
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MadMike
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posted February 22, 2007 06:07 AM
quote:
if its a cam bearing... which most likely...gonna need a head... no bearing i don't believe
what the hell is a cam bearing???
do the 14's have bearings up in the cam guides???
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SteddyTeddy
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posted February 22, 2007 10:31 AM
I don't think so. Should be normal align bored aluminum head like everything else. Problem is not in the head or valves. I'm with the others on this, spun rod bearing. You probably just scored it enough to start making noise. Saw Firestarter break her oil pan last night at the track. Came down hard from a wheelie and F-ed up the drain plug good.
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SteddyTeddy
Pro
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posted February 22, 2007 10:36 AM
Come to think of it, I know of 2 other people that have broken the protective lip off that is in front of the drain plug on their 14's. Those pan's hang way low.
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Nukedog
Expert Class
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posted February 22, 2007 01:09 PM
quote:
I wasnt aware this motor had lifters
He never said their was.
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serius blk
Zone Head
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posted February 23, 2007 05:56 AM
yea this next go round, im getting the low profile billet pan. I dont know why kaw made their pans this way. They could have at least put the plug on the side of the pan. since they made it with drag racing in mind. Oh well, i did learn something from the experience. 1 dont have the bike lowered to the ground even if im trying to be careful. Any oil light comes on im stopping even if im in the middle of no where. TLC life lesson.
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MadMike
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posted February 23, 2007 07:47 AM
I do not know if anyone making the billet pans yet everyone is waiting for Koenig so they can Copy it...
and he does not have one in the works at all right now.
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entropy
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posted February 23, 2007 10:33 AM
quote:
...Any oil light comes on im stopping even if im in the middle of no where. TLC life lesson.
OH YEAH!!!!!  good lesson.
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serius blk
Zone Head
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posted February 23, 2007 01:18 PM
orient express has a the billet low profile pan listed in their catalog
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dubious
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posted February 26, 2007 07:42 PM
spun brg !!
sounds like a good reason to send the entire engine to Colby, orient or carpenter for a bigbore stroker!!!
225-230 rwhp on pump fuel!!
...................for same $$$ the local stealer will rebuild to stock!!
Thats what I'd do if it was mine
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1badzx12r
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posted February 27, 2007 04:18 PM
quote:
quote:
if its a cam bearing... which most likely...gonna need a head... no bearing i don't believe
what the hell is a cam bearing???
do the 14's have bearings up in the cam guides???
see what happens to the topend after 80k miles on 20/50 oil
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serius blk
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posted February 27, 2007 07:09 PM
what im debating about is. turbo or just getting the motor done up with all the right goodies. I talked to one of the guys at orient express and he said for the money it would be better to just get a turbo. 4 or 5 thousand for maybe 40 or 50 horsepower. Carpenter dynos their bikes with race gas. They got 225 with everything, big bore, cams etc. Dont know if that makes sense since im not a consistent drag racer. Racing from time to time. Mostly just riding the bike. A small shot of nitrous will give you that. Being in the engine i think i would at least want to put the 13.5 stock bore pistons in it.
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dubious
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posted February 27, 2007 08:23 PM
While your in it do the rods, low compression stock bore pistons, stroker crank and ported head!
Big bores and turbo's suck.... unreliable.
sounds to me like you may need a new crank anyway, if so go stroker turbo!!!!
MY wet dream.....
stroker turbo, cams with taller lumps, not longer ones!
Less duration on the exhaust to prevent blow down.
pistons and good rods will allow you to run serious boost.
as far as cam brgs, these engines don't run cam brgs, the cams ride on a oil wedge in the bare machined head as Steady Teddy stated.
The head will be scored / galled if the top end ran out of oil.
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natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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