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Oil in the Air Box
- daveo
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05 Jul 2024 19:39 - 05 Jul 2024 20:03 #901804
by daveo
1982 KZ1100-A2
Oil in the Air Box was created by daveo
Was finding oil puddling in the bottom of my air box...
It was coming out the rubber hose that connects the breather cover to the air box, and making a bloody mess...
Is that a common issue with the big fours?
It was coming out the rubber hose that connects the breather cover to the air box, and making a bloody mess...
Is that a common issue with the big fours?
1982 KZ1100-A2
Last edit: 05 Jul 2024 20:03 by daveo.
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- SWest
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05 Jul 2024 21:17 #901805
by SWest
Replied by SWest on topic Oil in the Air Box
Are you riding it hard?
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05 Jul 2024 22:19 - 05 Jul 2024 22:25 #901806
by daveo
1982 KZ1100-A2
Replied by daveo on topic Oil in the Air Box
Probably, but not more than usual...well, maybe a little.
But I don't feel guilty...she likes it you know.
But I don't feel guilty...she likes it you know.
1982 KZ1100-A2
Last edit: 05 Jul 2024 22:25 by daveo.
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- Warren3200gt
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06 Jul 2024 01:38 - 06 Jul 2024 01:41 #901809
by Warren3200gt
Replied by Warren3200gt on topic Oil in the Air Box
Time for a compression test. Oil in the air box is caused by excessive positive crankcase pressure due to compression blowby then venting through the crankcase breather.
Last edit: 06 Jul 2024 01:41 by Warren3200gt.
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06 Jul 2024 02:04 #901811
by Wookie58
Replied by Wookie58 on topic Oil in the Air Box
Excess crankcase pressure can also be caused by a blockage/restriction in the breather system
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06 Jul 2024 02:16 #901812
by hugo
Replied by hugo on topic Oil in the Air Box
.............................................or overfilling the crank with oil.
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06 Jul 2024 06:03 #901816
by Nessism
Replied by Nessism on topic Oil in the Air Box
How much oil? Some light residue is normal. A puddle, is not. Also, what type of oil are you using? It may be time for 20W-50, if you ride when it's warm.
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06 Jul 2024 13:21 - 06 Jul 2024 13:27 #901829
by daveo
1982 KZ1100-A2
Replied by daveo on topic Oil in the Air Box
Been using Rotella 15W40 T4...
Wasn't finding much oil, but residue buildup over the span of several 5-8k rpm rides.
This stopped that completely:
...and there are no oil leaks anywhere on the motor!
Dry as a bone!
Wasn't finding much oil, but residue buildup over the span of several 5-8k rpm rides.
This stopped that completely:
...and there are no oil leaks anywhere on the motor!
Dry as a bone!
1982 KZ1100-A2
Last edit: 06 Jul 2024 13:27 by daveo.
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- F64
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06 Jul 2024 16:28 #901840
by F64
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY
Replied by F64 on topic Oil in the Air Box
Yeah, That's why I put oil vapor catch cans on my cars.
Gotta love sending oil vapors into your cylinder.
Drops the octane value on your gasoline.
Which makes you more susceptible to detonation.
Not emissions friendly but I reroute the hose to vent below the bike. Plug the airbox fitting.
You could put a pressure gauge on the hose to see how much blowby you are getting.
Mike Nixon's opinion on this
motorcycleproject.com/text/crankcase_recirc.html
Gotta love sending oil vapors into your cylinder.
Drops the octane value on your gasoline.
Which makes you more susceptible to detonation.
Not emissions friendly but I reroute the hose to vent below the bike. Plug the airbox fitting.
You could put a pressure gauge on the hose to see how much blowby you are getting.
Mike Nixon's opinion on this
motorcycleproject.com/text/crankcase_recirc.html
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY
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06 Jul 2024 18:09 - 06 Jul 2024 19:16 #901842
by daveo
1982 KZ1100-A2
Replied by daveo on topic Oil in the Air Box
7/06/24 compression check results:
cyl psi
1 & 4 160
2 & 3 145-150
Half a quart of oil evaporated on today's 100 +/- mile ride...
She loved every breathtaking moment through which we flew!!!
cyl psi
1 & 4 160
2 & 3 145-150
Half a quart of oil evaporated on today's 100 +/- mile ride...
She loved every breathtaking moment through which we flew!!!
1982 KZ1100-A2
Last edit: 06 Jul 2024 19:16 by daveo.
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07 Jul 2024 04:37 #901846
by Wookie58
Replied by Wookie58 on topic Oil in the Air Box
Love that solution Dave, is that "ram air" filter foam or something similar that won't cause a pressure build up??Been using Rotella 15W40 T4...
Wasn't finding much oil, but residue buildup over the span of several 5-8k rpm rides.
This stopped that completely:
...and there are no oil leaks anywhere on the motor!
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07 Jul 2024 06:14 - 07 Jul 2024 06:18 #901851
by daveo
1982 KZ1100-A2
Replied by daveo on topic Oil in the Air Box
Yes, and it performs much better than expected.
It's a strip cut from a sheet of RamAir filter media I acquired nearly ten years ago.
It may be similar to the material used in their product offerings today.
It's a strip cut from a sheet of RamAir filter media I acquired nearly ten years ago.
It may be similar to the material used in their product offerings today.
1982 KZ1100-A2
Last edit: 07 Jul 2024 06:18 by daveo.
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