Today's Message Index:
----------------------
1. 05:14 AM - Re: Matco brakes question (Bob Haas)
2. 12:27 PM - Re: Matco brakes question (GARY BARNETT)
3. 01:27 PM - Re: Matco brakes question (Geoff Eather)
4. 03:43 PM - Re: Matco brakes question (Tex Mantell)
5. 06:46 PM - Re: Matco brakes question (n5pb@AOL.COM)
Message 1
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| Subject: | Re: Matco brakes question |
I'm using Allen head cap screws with washers as supplied by MATCO a year
ago. no more separation on sand 1943 concrete runways. Bob Haas
#41 N330BH
-----Original Message-----
From: Bill Strahan
Sent: Saturday, February 23, 2013 2:34 PM
Subject: Lightning-List: Matco brakes question
I had a couple of the bolts that hold the disk on the wheel break recently.
I had the old style safety-wired bolts.
I ordered and received the upgraded wheels from Matco along with the new
button head screws and washers. Nick had told me to have a good quality hex
driver and torque wrench, which I thought I had. On the third bolt, the
head easily stripped before 80 inch-lbs. :(
Well, I have some of the previous cap head screws, and I'm curious if anyone
sees a reason not to use one. In fact, I'd rather have cap head screws all
the way around. These 1/8" drive button head screws are just too small in
my opinion. I don't want to be jacking with or worrying about this every
time the wheels come off.
So, question 1: Does anyone know why the switch to button head?
Question 2: Any reason not to stick with the cap head?
Question 3: If I use the cap head will that work with the new Nord Lock
washers, or just keep safety wiring? (I'm somewhat partial to the safety
wire, as it seems pretty fool proof.)
It's a gorgeous day in Dallas, and I want to go flying. I must have done
something wrong to someone to have a problem with the last bolt before
putting wheel pants on and going.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=394873#394873
Message 2
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| Subject: | Matco brakes question |
Bill I had the same problem with the Matco furnished button heads stripping
out. Matco sent some new ones but they were also soft. I bought some but
ton head screws identical to the Matco ones at ACE hardware. They gave me
no trouble torquing them to 80 inch pounds. They have been holding the dis
ks on for 150 hours with no trouble. Gary Barnett N335AL SN133
> Subject: Lightning-List: Matco brakes question
> From: bill@gdsx.com
> Date: Sat=2C 23 Feb 2013 11:34:34 -0800
> To: lightning-list@matronics.com
>
>
> I had a couple of the bolts that hold the disk on the wheel break recentl
y. I had the old style safety-wired bolts.
>
> I ordered and received the upgraded wheels from Matco along with the new
button head screws and washers. Nick had told me to have a good quality he
x driver and torque wrench=2C which I thought I had. On the third bolt=2C
the head easily stripped before 80 inch-lbs. :(
>
> Well=2C I have some of the previous cap head screws=2C and I'm curious if
anyone sees a reason not to use one. In fact=2C I'd rather have cap head
screws all the way around. These 1/8" drive button head screws are just to
o small in my opinion. I don't want to be jacking with or worrying about t
his every time the wheels come off.
>
> So=2C question 1: Does anyone know why the switch to button head?
> Question 2: Any reason not to stick with the cap head?
> Question 3: If I use the cap head will that work with the new Nord Lock
washers=2C or just keep safety wiring? (I'm somewhat partial to the safety
wire=2C as it seems pretty fool proof.)
>
> It's a gorgeous day in Dallas=2C and I want to go flying. I must have do
ne something wrong to someone to have a problem with the last bolt before p
utting wheel pants on and going.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=394873#394873
>
>
>
>
>
>
>
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>
>
>
Message 3
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| Subject: | Re: Matco brakes question |
Bill,
Same problem early in my test program - brake disc separated and required a replacement
wheel.
Matco confirmed that 80 inch pounds was the correct torque for the button head
bolts. This seemed too tight to me, even though the originals (with Nord Lock
washers) came loose.
And like yourself, I did strip one head before 80 inch pounds when assembling the
new wheel. Was lucky I had a spare bolt.
Current button head bolts with Nord Lock washers seem to be fine after about 30
hours flight time.
Cheers
Geoff Eather (Kit 127) Australia
On 24/02/2013, at 6:34 AM, Bill Strahan wrote:
>
> I had a couple of the bolts that hold the disk on the wheel break recently.
I had the old style safety-wired bolts.
>
> I ordered and received the upgraded wheels from Matco along with the new button
head screws and washers. Nick had told me to have a good quality hex driver
and torque wrench, which I thought I had. On the third bolt, the head easily
stripped before 80 inch-lbs. :(
>
> Well, I have some of the previous cap head screws, and I'm curious if anyone
sees a reason not to use one. In fact, I'd rather have cap head screws all the
way around. These 1/8" drive button head screws are just too small in my opinion.
I don't want to be jacking with or worrying about this every time the
wheels come off.
>
> So, question 1: Does anyone know why the switch to button head?
> Question 2: Any reason not to stick with the cap head?
> Question 3: If I use the cap head will that work with the new Nord Lock washers,
or just keep safety wiring? (I'm somewhat partial to the safety wire, as
it seems pretty fool proof.)
>
> It's a gorgeous day in Dallas, and I want to go flying. I must have done something
wrong to someone to have a problem with the last bolt before putting wheel
pants on and going.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=394873#394873
>
>
>
>
>
>
>
>
>
>
Message 4
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| Subject: | Re: Matco brakes question |
Bill, I am sticking with the cap screws and safety wire.
Tex
----- Original Message -----
From: "Geoff Eather" <geather@bigpond.net.au>
Sent: Sunday, February 24, 2013 4:24 PM
Subject: Re: Lightning-List: Matco brakes question
> <geather@bigpond.net.au>
>
> Bill,
>
> Same problem early in my test program - brake disc separated and required
> a replacement wheel.
>
> Matco confirmed that 80 inch pounds was the correct torque for the button
> head bolts. This seemed too tight to me, even though the originals (with
> Nord Lock washers) came loose.
>
> And like yourself, I did strip one head before 80 inch pounds when
> assembling the new wheel. Was lucky I had a spare bolt.
>
> Current button head bolts with Nord Lock washers seem to be fine after
> about 30 hours flight time.
>
> Cheers
>
> Geoff Eather (Kit 127) Australia
>
>
> On 24/02/2013, at 6:34 AM, Bill Strahan wrote:
>
>>
>> I had a couple of the bolts that hold the disk on the wheel break
>> recently. I had the old style safety-wired bolts.
>>
>> I ordered and received the upgraded wheels from Matco along with the new
>> button head screws and washers. Nick had told me to have a good quality
>> hex driver and torque wrench, which I thought I had. On the third bolt,
>> the head easily stripped before 80 inch-lbs. :(
>>
>> Well, I have some of the previous cap head screws, and I'm curious if
>> anyone sees a reason not to use one. In fact, I'd rather have cap head
>> screws all the way around. These 1/8" drive button head screws are just
>> too small in my opinion. I don't want to be jacking with or worrying
>> about this every time the wheels come off.
>>
>> So, question 1: Does anyone know why the switch to button head?
>> Question 2: Any reason not to stick with the cap head?
>> Question 3: If I use the cap head will that work with the new Nord Lock
>> washers, or just keep safety wiring? (I'm somewhat partial to the safety
>> wire, as it seems pretty fool proof.)
>>
>> It's a gorgeous day in Dallas, and I want to go flying. I must have done
>> something wrong to someone to have a problem with the last bolt before
>> putting wheel pants on and going.
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=394873#394873
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 5
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| Subject: | Re: Matco brakes question |
Bill,
I too received the new button head screws after MATCO service bulletin came
out a couple of years ago. I've not had any problem to torque them to th
e 80 in Lbs. Also, I have had the wheels off several times and each time I
installed with new button head screws and washers without incident.
Bear
-----Original Message-----
From: Bill Strahan <bill@gdsx.com>
Sent: Sat, Feb 23, 2013 2:39 pm
Subject: Lightning-List: Matco brakes question
I had a couple of the bolts that hold the disk on the wheel break recently.
I
had the old style safety-wired bolts.
I ordered and received the upgraded wheels from Matco along with the new bu
tton
head screws and washers. Nick had told me to have a good quality hex drive
r and
torque wrench, which I thought I had. On the third bolt, the head easily
stripped before 80 inch-lbs. :(
Well, I have some of the previous cap head screws, and I'm curious if anyon
e
sees a reason not to use one. In fact, I'd rather have cap head screws all
the
way around. These 1/8" drive button head screws are just too small in my
opinion. I don't want to be jacking with or worrying about this every time
the
wheels come off.
So, question 1: Does anyone know why the switch to button head?
Question 2: Any reason not to stick with the cap head?
Question 3: If I use the cap head will that work with the new Nord Lock
washers, or just keep safety wiring? (I'm somewhat partial to the safety w
ire,
as it seems pretty fool proof.)
It's a gorgeous day in Dallas, and I want to go flying. I must have done
something wrong to someone to have a problem with the last bolt before putt
ing
wheel pants on and going.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=394873#394873
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