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Discussion Starter · #1 ·
Most of you are firmiliar with my quad and what i have done for those who dont I put a new crank in it. Now i have a question. The guy i baught it off of a.k.a. my brother now admits that he had the whole motor tore apart as far as i did and he lets just say had a couple extra pieces when he was done. One was a washer that the only place i can think of judging by the size could be off the balance for the crank. I think it was supposed to be on the inside of the 2 halves between the balancer and the bearing, and im starting to wonder if the sound im hearing isnt the valves and could be that. When i checked it when i put in back togeather it only moved like a milimeter at most. Could that little movement be making what i think sounds like valves? Is there any way i can diferenciate(spell check) between the top end making the noise and the bottom end. Any help is apreciated.
 

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Discussion Starter · #2 ·
Anyone? Plz.
 

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compare it to the repair manaul if you have one..second..take a long screw driver...put it to your ear..start the motor..and listen to the top end..and lower end..where does the odd sound come from your hearing ?..on a side note..there shouldn't be any '' spare parts '' left over from a rebuild..lol.
 

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Discussion Starter · #4 ·
Yeah when i rebuilt it there werent but my brother tore into it weeks before i baught it and just now decided to tell me that small little detail and gave me the spair parts. My book didnt say anything about this washer at all its really weird. But ill try that screw driver trick tomorrow. Im sure that will look really funny me in the garage with a screw driver to my ear. LOL thanks
 

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Yeah when i rebuilt it there werent but my brother tore into it weeks before i baught it and just now decided to tell me that small little detail and gave me the spair parts. My book didnt say anything about this washer at all its really weird. But ill try that screw driver trick tomorrow. Im sure that will look really funny me in the garage with a screw driver to my ear. LOL thanks
believe it or not..alottttt of old school mechanincs used that trick..from wayyyyy back..they didn't have stethascopes < spelling maybe off !..lol..soooo..they used screw drivers to locate noises.
 

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believe it or not..alottttt of old school mechanincs used that trick..from wayyyyy back..they didn't have stethascopes < spelling maybe off !..lol..soooo..they used screw drivers to locate noises.
Using a screwdriver will work, but man, a mechanics stethoscope works so much better. You can hear a lot more.
 

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Discussion Starter · #7 ·
Yeah ill give it a shot. It sound so much like valves to me though. But just knowing my brother tore it apart scares me. It scared me even more when he handed me that washer. Lets just say my brother isnt playing with a full deck and he would be the kind of guy to just go. I got all there extra parts and then just throw them over his shoulder and forget about them. lol
 

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Discussion Starter · #8 ·
I can get ahold of a real lagit stethicope. will that work?
 

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believe it or not..alottttt of old school mechanincs used that trick..from wayyyyy back..they didn't have stethascopes < spelling maybe off !..lol..soooo..they used screw drivers to locate noises.
Using a screwdriver will work, but man, a mechanics stethoscope works so much better. You can hear a lot more.
and how many atv mech like us have a stethoscope handy ?..lol..i've never used one in my life..for working on atv's...i guess after rebuilding them for as long as i have..after hearing all that i've heard..i can pretty much tell you what and where it's comming from < providing i've rebuilt it > !..lol.
 

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believe it or not..alottttt of old school mechanincs used that trick..from wayyyyy back..they didn't have stethascopes < spelling maybe off !..lol..soooo..they used screw drivers to locate noises.
Using a screwdriver will work, but man, a mechanics stethoscope works so much better. You can hear a lot more.
and how many atv mech like us have a stethoscope handy ?..lol..i've never used one in my life..for working on atv's...i guess after rebuilding them for as long as i have..after hearing all that i've heard..i can pretty much tell you what and where it's comming from < providing i've rebuilt it > !..lol.
I've got one and they work great. If you've never used one, you should get one and try it, you will be surprised how good you can hear noises in the engine. You can get them at Advance Auto parts and they're only about $10.
 

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I can get ahold of a real lagit stethicope. will that work?
A stethoscope like a doctor uses don't work to good on an engine. The mechanic's stethoscope has a long metal rod on the end of it that you can use to probe down deep in tight places that a regular one won't fit. Even places where the doctor's stethoscope will fit, it don't work too good. I tried it before I bought the mechanic's stethoscope. You can get them at Advance Auto parts for about $10 and they're handy to have around.
 

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Discussion Starter · #12 ·
Oh shoot 10 buck ill pick one up then. But do u think a milimeter of movement on the crank balancer would mess it up bad enough to make a noise?
 

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Oh shoot 10 buck ill pick one up then. But do u think a milimeter of movement on the crank balancer would mess it up bad enough to make a noise?
That's a good question and unfortunately, I don't know the answer. Sorry.
 

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Discussion Starter · #14 ·
Ballz im gunna kick my brothers ass if i gotta pull this motor all the way back apart. You know he couldnt have told me when i had it all sitting apart for a week no! wait till i get it all the way back togeather to tell me.
 

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Ballz im gunna kick my brothers ass if i gotta pull this motor all the way back apart. You know he couldnt have told me when i had it all sitting apart for a week no! wait till i get it all the way back togeather to tell me.
at least you haven't tore it back up from running it yet !!..count your blessings...lol
 

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Discussion Starter · #16 ·
Yeah hopefully not its making noise but i really havent rode it more than around the yard once or twice. And i dunno if its the top or bottom end making the noise yet. Keeping my fingers crossed. Thank guys for the help.
 

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Discussion Starter · #17 ·
After Spending an hour out there with a mech. stethoscope i ruled out the bottom end making the noise. I would think if the bottom end were making the noise it would be slower at idle than valves. Its a really rapid tap. And its inconsistant. I think its the cam chain slapping. Because i pulled the valve covers off and they are perfect dead nuts .004. Does anyone know if they make a manuel cam chain tensioner and any good brand of cam chain i can get. I think when my oil pump went the same friction that f'ed the rod bearings may have stretched the chain out.
 

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Have you ever replaced the cam chain?If not its probably time to.DID makes a good cam cahin but honda is a good one also.
 

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Discussion Starter · #19 ·
Nope never and its a 1996 and what i think stretched it was when my oil pump stopped the friction in the motor that killed my rod bearing probably was enough to stretch the chain.
 

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Did the mechanic's stethoscope work good for you? It works a lot better than a screwdriver, don't it?
 
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