Black22
Novice Class
Posts: 32
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posted April 20, 2010 05:19 PM
Airbox full of oil , hydraulic lock
06 model stock motor with cut oilpan, 4 qts of oil , block-off plates. The airbox was filled with oil and wouldnt turn over due to oil in the cylinders. The motor was pulled apart thinking it was valves,seals rings or something to that effect, but everything looks great. We have the same set-up (cut pan,blockoffs and 4 qts of oil) on 3 more bikes with no problems. First logic makes you think oil level is too high creating pressure and filling the airbox but the others work fine . Anyone have any suggestions ????
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Amsoil
Shift FX biperformance.ca
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Shane661
Needs a life
Posts: 11494
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posted April 20, 2010 05:23 PM
 Edited By: Shane661 on 21 Apr 2010 01:29
Did you shorten the hose that goes into the sump when you installed the cut pan? Did the hose perhaps get kinked during install?
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Black22
Novice Class
Posts: 32
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posted April 20, 2010 05:36 PM
Yes it is shortened . It is hard plastic so unlikely its kinked. I have had the same guy do 4 pans for me and they all look and measure the same. Thanks for help ! Please keep it coming.
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Amsoil
Shift FX biperformance.ca
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kaw-rick
Pro
Posts: 1167
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posted April 20, 2010 05:44 PM
i dont think they are hard plastic. Its a hose. And i remove them alltogether.
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dcjens
Pro
Wet side of Washington
Posts: 1059
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posted April 20, 2010 06:12 PM
quote:
i dont think they are hard plastic. Its a hose. And i remove them alltogether.
rubber hose with a squeeze clamp 3/8ish +1 on the remove.
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Black 06
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wrongway
Pro
Posts: 1078
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posted April 21, 2010 05:46 AM
the only way for oil to get into the airbox is from crankcase pressure pushing it out the hose mounted on the plate above the starter. I guess if the oil was foaming up it could have gotten that high.
When I melted my motor down i had some oil up there , but not like you talked about... and I was on a mile pass at maxton.
I would disconnect that vent and see how much pressure /blowby you see coming out of the crankcase.
Roy
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1badzx12r
Needs a life
Posts: 8321
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posted April 21, 2010 06:07 AM
something is fukked up on that motor ..even when i fried 2 pistons i didn't lock down the motor from oil
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http://www.youtube.com/watch?v=S06nIz4scvI
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pazx14rider
Zone Head
Posts: 953
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posted April 21, 2010 03:49 PM
Im getting oil in my airbox as well not enough to fill it but its running out the grommets in the air box that the plastics bolt to. I have a clems pan, tube completely removed, and i have the brocks plug installed on the air box. Just a side note my buddy put his plug on his airbox from his brocks pipe and the airbox immediately filled with oil. removed the plug no more oil?? explain that!
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Black22
Novice Class
Posts: 32
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posted April 21, 2010 04:17 PM
Not making any sense to me either. We are going to put it back together and see what we can find externally. Thanks for the suggestions!
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Amsoil
Shift FX biperformance.ca
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wrongway
Pro
Posts: 1078
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posted April 21, 2010 04:36 PM
maybe the crankcase vent should get routed to a puke tank instead of the air box ?
Roy
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osr
Expert Class
Posts: 459
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posted April 21, 2010 07:08 PM
make sure to remove the drain tube -- they need to be removed not cut short as they may still kink if they are in there -- pull it out
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LAB3
Needs a job
Posts: 2977
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posted April 21, 2010 07:11 PM
quote:
Im getting oil in my airbox as well not enough to fill it but its running out the grommets in the air box that the plastics bolt to. I have a clems pan, tube completely removed, and i have the brocks plug installed on the air box. Just a side note my buddy put his plug on his airbox from his brocks pipe and the airbox immediately filled with oil. removed the plug no more oil?? explain that!
ummmm call Brock...... let us know what he suggests.
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johnbull
Expert Class
Posts: 314
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posted April 22, 2010 03:52 AM
On our race car applications using the zx14 motor we chuck the breather pipe into a catch tank and not into the airbox.
Last year when we went from short hill climbs to 15 minute circuit racing we began experiencing huge breathing problems with the zx 14 motors. It actually caused a fire on 1 occasion.
We ended up solving the problem by opening up 2 additional breathers in the top cover of the engine and removing the rubber pipe in the sump that ppl have already mentioned above.
Hope this helps.
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John Bul Racing. Malta.
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