creepdog
Novice Class
Posts: 68
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posted May 03, 2009 06:16 AM
main bearing
if u spin a main bearing does your oil light have to come on?i busted my oil pan at the track back in october,and this past month it just started with a slight knocking noise.oil pressure was checked and was good.had a valve lash noise ever since i put the the oil pan on though.tried adj. the balancers just to see if it was that cuz it sounded like the noise was coming from that area.the next couple days after was when i started hearing that slight knock noise.cant hear it unless the bike is hot.could i have not adjusted the balancers right?
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted May 03, 2009 06:21 AM
Could be the adjusters, usually the rod brgs go before a main... they run much hotter and the mains all support the crank assembly together, wheras a rod bearing supports itself and the piston,
FYI #3 rod brg is the one that usually goes south first, if they do go for some reason
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natural selection.....
destiny will overcome intervention.
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Bently
Needs a life
2012 14r In Blue and no Mods!
Posts: 5428
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posted May 03, 2009 06:25 AM
Did you have it shut off before all the oil ran out? If so I would think it has nothing to do with the busted pan.
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creepdog
Novice Class
Posts: 68
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posted May 03, 2009 07:28 AM
thanx.yeah i cut it off before all the oil drained out.
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gilberjj
Needs a job
Friend of Fast
Posts: 3196
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posted May 03, 2009 10:32 AM
You just need to rev it harder and pretend you don't hear anything....
LA LA LA LA LA LA LA
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creepdog
Novice Class
Posts: 68
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posted May 03, 2009 10:59 AM
lol.i dont hear it when im riding,only when im sitting still and i rev it a lil bit.just adjusted the balancers again.not as loud as before but im gonna go ride it for a bit and see how it sounds afterwards.
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TooHype
Expert Class
Go Hard or Go Home !!
Posts: 427
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posted May 03, 2009 02:50 PM
quote:
You just need to rev it harder and pretend you don't hear anything....
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Go Hard or Go Home !!....2007 Diablo Black ZX-14, BMC Race Filter, Brock's Alien Head, Brock's Radial Mount Strap, PClll with Custom Map, Flies removed, Muzzy fan, Muzzy lowering links, Muzzy Fender Eliminator, 16/41, Speedohealer, Stretched 6", Lowered 3" IN GOD I TRUST !......If You’re a Hater….KILLYASELF !!
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zixxer14
Pro
Damn that was Quick
Posts: 1233
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posted May 03, 2009 09:10 PM
quote:
quote:
You just need to rev it harder and pretend you don't hear anything....
Yea, speed tuning works great!
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pissear
Expert Class
Professional Cockis Slap Peer
Posts: 309
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posted May 04, 2009 06:26 AM
Drop the oil sump pan or cut the oil filter open. I used to remove the oil filter cartridge from the engine, take a peek, screw it back on; no crank/rod bearing material is go out and beat it hard; she will last the race. Bottom line: Look for material.
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way too much light in the place is shoot the lights out and make it really dark inn year ear is F YO and the bike you clanked in on.
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creepdog
Novice Class
Posts: 68
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posted May 04, 2009 07:58 AM
will do.thanks
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full trc pc k&n filter pulled flies stacks ign. advancer custom mapped
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Smooth_G
Expert Class
Posts: 228
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posted May 04, 2009 08:48 AM
dubious,,, lyle,,does it get constant oil pressure to the rods ,,or is it intermittent,,,is there an annular passage cut in the middle of the main bearing on both halves ,or just one half,,,or does the crank have a groove in the middle of the main bearing area going the whole circumference
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted May 04, 2009 11:55 AM
There are 5 mains, the middle and 2 outer are not annular, and the other 2 between the 3 are annular. so it goes :
1 -no groove,
2 grooved,
3 no groove
4 grooved
5 no groove
The rods are not grooved
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natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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Smooth_G
Expert Class
Posts: 228
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posted May 04, 2009 01:17 PM
lyle,, thanx for the info,, some of the jap 4s have or had a annular groove only on the top main bearing shell to feed the rods,,the lower bearing shell had no groove,,so when the crank turns it covers the oil hole n has no oil pressure during that part of the stroke,,is the 14 that way??,,,,the best way to do it,,,is to pump the oil through both ends of the crank to all bearings,,it doesnt fight centrifugal force to get into the crank,,,the centrifugal force works in its favor rather then against it,,n a dry sump would rid the low oil pan,,the oil tank always has gravity pressure pushing oil to the pump,,no matter how far u lean it,,or wheelie,,oil is constant,,,plus u wouldnt have any problems with over filling or oil blowing out the breather
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