Today's Message Index:
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1. 12:01 PM - Carlisle Tires (Philip Smith)
2. 12:36 PM - Re: Carlisle Tires (cdnch701)
3. 01:03 PM - Carlisle Tires (Phil Owens)
Message 1
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Listers,
Without going out to the airport and confirming - I think I have been
supplied Carlisle Tires with Matco hubs in my CH 701 kit. Does it matter
that the manufacturer is the Carlisle tires? Are these type of tires junk?
Look perty cheap to me but I'm just an A&P. Is the sealed ball bearing setup
not what you want to do.
Wasn't noticable until I started flying but the tires - especially the nose
tire - seemed to be out-of-round. You could spin them on their axle and see
the "bump". On pavement you kinda bounce along when taxiing. Thought all
this strange but proceded with flying anyway (POR - press on
regardless) hoping that the tires would 'roll into shape' - that hasn't
happened in ten hours of taxiing and flying.
Dosen't seem to be a problem on takeoff or landing until you touch the nose
gear tire down then there is a heavy shimmy - constant backpressure reduces
the shake but it's not right. I have tried demounting, then remounting with
copious amounts of tire bead lube and balancing the nose tire to no avail -
still shakes and is out of round AND as the following states biased to one
side. On the balancing issue what have you guys and gals done to balance
this type of tire? I know the standard put the red spot next to the valve
etc, BUT I don't think there was a red balance spot on the tires - built
those up a couple aof years ago - can't remember.
Also the nose tire seems to be biased to the left side of the nose fork -
that is to say that the clearance fork to tire is different side to side.
There also seemed to be more bearing free play than that of a tapered
bearing/cup setup on a production plane. I took out all the free play I
could with spacers on the nose wheel axle so the free play is bearing race
to inner cup inside the sealed ball bearing. Next is to lay the tire on it's
side and measure the hub rim to outside plane of the tire on both side B$
trying to figure out the bias problem.
Ok my capable experts - what does one do now? I am open to any and all
suggestions - even demounting all the tires and starting again, but don't
want to just "mount and hope " without a clear plan. Plan to have the
airplane off the wheels soon to put in the "new" gear bushing material that
Zenith supplied AFTER I had done the original mounting. BTW the bottom
piece of the right gear bushing material seems to be shearing off at the
aluminum, angle edge on the outboard side. Still think it's airworthy but
want the new stuff in there anyway .
Get back either on the list or to me direct by email.
Phil Smith
CH-701 Flying
Message 2
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| Subject: | Re: Carlisle Tires |
Hey Phil
This is the tire and tube you should have... not Carlisle!!!!
http://www.matcomfg.com/TIRE800X64PR-idv-2991-38.html
http://www.matcomfg.com/TUBE800X67-idv-3081-38.html
Ron
:--) Listers,
:--)
:--) Without going out to the airport and confirming - I think I have
:--) been supplied Carlisle Tires with Matco hubs in my CH 701 kit.
:--) Does it matter that the manufacturer is the Carlisle tires? Are
:--) these type of tires junk? Look perty cheap to me but I'm just an
:--) A&P. Is the sealed ball bearing setup not what you want to do.
:--)
:--)
:--) Wasn't noticable until I started flying but the tires -
:--) especially the nose tire - seemed to be out-of-round. You could
:--) spin them on their axle and see the "bump". On pavement you
:--) kinda bounce along when taxiing. Thought all this strange but
:--) proceded with flying anyway (POR - press on regardless) hoping
:--) that the tires would 'roll into shape' - that hasn't happened in
:--) ten hours of taxiing and flying.
:--)
:--)
:--) Dosen't seem to be a problem on takeoff or landing until you
:--) touch the nose gear tire down then there is a heavy shimmy -
:--) constant backpressure reduces the shake but it's not right. I
:--) have tried demounting, then remounting with copious amounts of
:--) tire bead lube and balancing the nose tire to no avail - still
:--) shakes and is out of round AND as the following states biased to
:--) one side. On the balancing issue what have you guys and gals
:--) done to balance this type of tire? I know the standard put the
:--) red spot next to the valve etc, BUT I don't think there was a
:--) red balance spot on the tires - built those up a couple aof
:--) years ago - can't remember.
:--)
:--)
:--) Also the nose tire seems to be biased to the left side of the
:--) nose fork - that is to say that the clearance fork to tire is
:--) different side to side. There also seemed to be more bearing
:--) free play than that of a tapered bearing/cup setup on a
:--) production plane. I took out all the free play I could with
:--) spacers on the nose wheel axle so the free play is bearing race
:--) to inner cup inside the sealed ball bearing. Next is to lay the
:--) tire on it's side and measure the hub rim to outside plane of
:--) the tire on both side B$ trying to figure out the bias problem.
:--)
:--)
:--) Ok my capable experts - what does one do now? I am open to any
:--) and all suggestions - even demounting all the tires and starting
:--) again, but don't want to just "mount and hope " without a clear
:--) plan. Plan to have the airplane off the wheels soon to put in
:--) the "new" gear bushing material that Zenith supplied AFTER I had
:--) done the original mounting. BTW the bottom piece of the right
:--) gear bushing material seems to be shearing off at the aluminum,
:--) angle edge on the outboard side. Still think it's airworthy but
:--) want the new stuff in there anyway .
:--)
:--)
:--) Get back either on the list or to me direct by email.
:--)
:--) Phil Smith
:--) CH-701 Flying
:--)
:--)
:--) = - MATRONICS WEB FORUMS -
:--) your generous support!
:--) --> http://www.matronics.com/contribution
Message 3
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