Today's Message Index:
----------------------
1. 05:45 AM - Re: stainless metric screws needed (Rico Jaeger)
2. 07:12 AM - 18T issues (Richard Goode)
3. 09:23 AM - Re: Yak 18T (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
4. 09:44 AM - Re: stainless metric screws needed (Hal Morley)
5. 11:35 AM - Re: Yak 18T (Jan Mevis)
6. 12:06 PM - Re: 18T issues (Didier Blouzard)
7. 01:48 PM - Re: stainless metric screws needed (Joseph Colquitt)
8. 11:00 PM - Re: 18T issues (Jan Mevis)
Message 1
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| Subject: | Re: stainless metric screws needed |
Just FYI...There's a company in Wisconsin (not sure if they're national)
called FASTENAL that has been able to retrieve ANY screw, bolt, nut,
washer, etc. that I've ever requested. I've bought a bunch of stainless
stuff from them. We have a local outlet here in Wausau. And they don't
charge aircraft supply house prices.
>>> Walter Lannon <wlannon@persona.ca> 9/14/2010 11:26 AM >>>
Joe;
Nylon washers - #8 and #10 standard from any aircraft supply source
will work just fine for the M4 and M5 screw.
walt
----- Original Message -----
From: Joseph Colquitt ( mailto:jcolquit@law.ua.edu )
Sent: Tuesday, September 14, 2010 6:37 AM
Subject: Yak-List: stainless metric screws needed
Hi all. Does anyone have a U.S. source for truss / Phillips head
stainless metric screws? I need a fair number of M4 and a few M5 screws.
Ive spoken with the people at Maryland Metrics after spending quite
some time in finding the screws (under B1111 appendix) on their
website.
They list but do not stock these screws, but would be glad to sell me
bulk quantities. The guy and I calculated an order based on their
minimums, and it would have cost $480 just for the M4s. Forget the M5s
together the order would have exceeded $1000. (plus shipping, and the
order would have come from Japan).
Other potential sources try to shift me to pan head, combo, slotted, or
some other version of the metric stainless screw. Truss heads are not
the most available version of metric stainless screws.
I need, at most, a few hundred, not thousands. I was thinking that I
could order 500-600 M4s and maybe 200 M5s since another CJ guy says he
will split the order with me, but neither he nor I want to spend $500
(each) to get some screws.
We also need some metric nylon washers (M4, M5).
Does anyone know of any good U.S. sources for such items? Any response
will be appreciated, and off-list is fine.
Thanks.
Joe Colquitt
CJ6A
href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics.com/Navigator?Yak-Listhref="http://forums.matronics.com">http://forums.matronics.comhref="http://www.matronics.com/contribution">http://www.matronics.com/c
Message 2
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The M14P has very good quality steel valve seats, and the Russians say that
no additional help from lead is needed.
But, I see no harm in adding lead - a good idea to give it 100ll whenever
you can.
You can buy a lead product (TEL) for historic cars in the UK.
It is not that expensive - 130 Euro for enough to treat a thousand litres -
and you do not need to put in nearly as much as they suggest, since they are
using it mainly for the Octane enhancer.
There is no 50-hour check - but my own view is it is prudent to look over
the engine every 50-hours, particularly if it is not often used.
The only way to clean the fuel filters is ultrasonically.
For the undercarriage oleos, you either get an engineering shop to make up
connectors, OR convert them to a conventional automotive Schraeder valve.
I think pre-oiling is a very good idea, and all you need is a separate
supply from the oil tank through to a high pressure electric pump, going
into one of the oil galleries, which then will circulate oil around the
engine before starting. But I do not think that anyone makes a kit as such.
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Herefordshire
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
<http://www.russianaeros.com> www.russianaeros.com
Message 3
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Hi Jan,
You took the words out of my mouth. TEL is very difficult to get "over
the shelf".
There have been a lot of interesting articles written lately about
"Alternative Fuels". An expert on fuels from Shell Oil wrote a very
interesting piece about how most people are talking a lot about Octane,
and are paying very little attention to the other things needed that TEL
provides in our aircraft engines.
I am not an aircraft engine expert (as I have said many times). But
from my past experience with other types of engines, I can say that the
first place that you look for damage when running unleaded fuel in an
engine that was designed for it, is the valve seats. I would say the
valves themselves as well, but I *THINK* that the M-14 uses sodium
filled massive valves. I've looked at them and that seems to be
accurate, but I'd like someone else to confirm it. So, I *SUSPECT* that
the M-14 valves can withstand running without lead more than some other
types.
The interesting fact though is that as long as the octane meets spec, an
engine can get by with much less lead than is contained in 100LL. I
have no doubt in my mind that running a 50/50 mix of unleaded and 100LL
would keep the valves and seats happy for a LONG time.
But for what it is worth ... How well an engine "runs" is not a good
basis to determine whether you can operate an engine a long time without
leaded fuel when the original design calls for it. A lot of folks will
argue and debate that point, and that's just fine. Folks can do
whatever they want with equipment they own. Personally though, I would
make it a point ... No matter the cost .... To always run some 100LL
through the engine every couple of tank-fulls. Sure, running a 50/50
mix or so would be even better, but that can be cost prohibitive and
even may not be available in Europe in many locations. But you can
actually get by just running some 100LL through the engine once in
awhile and that will go a LONG way towards preventing the kind of damage
to the seats that can eventually happen.
Be aware that some pilots have claimed to have run M-14's hundreds and
hundreds of hours and the engines are still "just fine". Good for them.
I would still advise throwing some leaded fuel in there every so often,
regardless.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Wednesday, September 15, 2010 2:21 AM
Subject: RE: Yak-List: Yak 18T
Hello Didier,
It will be very difficult to find any lead additive on the market. The
existing additives are all without lead. They can be used to get a
higher octane number, but as far as I know, they're all quite toxic
(with toluene and benzene compounds) and I have my doubts.
There's a group of car-oldtimer guys in the UK who sell TEL in small
quantities, but it's very expensive, and you have to be knowledgeable
about it's use. Too much makes things worse. Then you'd better continue
with avgas.
Call me off list for the other questions if you want.
BR,
Jan
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Didier
Blouzard
Sent: woensdag 15 september 2010 12:15
Subject: Yak-List: Yak 18T
G'day to all,
I come back with a few questions concerning the Yak 18T and M14P.
First, I decided to use unleaded 98 as most of my friends yakees.
Since four full fills it seems to work fine . At least as good as with
100LL.
Question is would you recommend to put an automotive lead additive in
the fuel?????
Seems that the eastern friends doesn't care about additive.???
Second question. Does anyone have a 50 hours maintenance programm for
the M14P. If there is some pics for a beginner that would be great. But
at least a card.
Pics of all the fuel filters on the M14P and how to clean them would be
so very helpfull....
Third question, is it possible to purchase a hose for charging the main
gear shock absorbers???
Then last question, I am looking for a preoiling kit. Does anyone has
used one and where to buy it???
Or also a non electrical autonomous warming device for the
winter....working with gas or fuel???
Sorry to bother with so many question.
By the way I am happy to annouce my first aerobatic flight in my
18T...very smooth and absolutely non painfull for the plane....2g's max.
So excited!!!!
best regards and safe flights to all
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
http://www.matronics.com/Navigator?Yak-List
http://forums.matronics.com
http://www.matronics.com/contribution
Message 4
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| Subject: | Re: stainless metric screws needed |
Hi Joe,
Contact Doug Sapp for the screws and washers. All of the stainless screws on my
plane Hana Hou! are from Doug (and all were polished individually by me!).
(And no, I will not start a pun fest on this.)
Cheers,
Hal
Message 5
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Hello Mark,
I know of M14P's running for hundreds of hours on cargas. At the end, these
engines were quite "leaky", dripping oil from everywhere, maybe due to the
ethanol in the cargas, maybe because of maintenance issues, I don't know.
Nevertheless, they still were operational, consuming somewhat more oil.
These pilots never mentioned vapour locks, or even carburettor icing. The
Russian engines are really strong, and apparently designed to run with oils
and fuels of variable quality.
Nevertheless, I only feed Avgas 100LL to my engine, and only the best oils
that I can get.
There will be a problem in the not so distant future, Avgas 100 LL being
ruled out (a recent article mentions 2017). But it's of no use, and bad for
one's health if we start worrying all the time. I'm sure we'll find a
workaround when it's due.
All the best,
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G
CIV Det Cherry Point, MALS-14 64E
Sent: woensdag 15 september 2010 6:16
Subject: RE: Yak-List: Yak 18T
MALS-14 64E" <mark.bitterlich@navy.mil>
Hi Jan,
You took the words out of my mouth. TEL is very difficult to get "over
the shelf".
There have been a lot of interesting articles written lately about
"Alternative Fuels". An expert on fuels from Shell Oil wrote a very
interesting piece about how most people are talking a lot about Octane,
and are paying very little attention to the other things needed that TEL
provides in our aircraft engines.
I am not an aircraft engine expert (as I have said many times). But
from my past experience with other types of engines, I can say that the
first place that you look for damage when running unleaded fuel in an
engine that was designed for it, is the valve seats. I would say the
valves themselves as well, but I *THINK* that the M-14 uses sodium
filled massive valves. I've looked at them and that seems to be
accurate, but I'd like someone else to confirm it. So, I *SUSPECT* that
the M-14 valves can withstand running without lead more than some other
types.
The interesting fact though is that as long as the octane meets spec, an
engine can get by with much less lead than is contained in 100LL. I
have no doubt in my mind that running a 50/50 mix of unleaded and 100LL
would keep the valves and seats happy for a LONG time.
But for what it is worth ... How well an engine "runs" is not a good
basis to determine whether you can operate an engine a long time without
leaded fuel when the original design calls for it. A lot of folks will
argue and debate that point, and that's just fine. Folks can do
whatever they want with equipment they own. Personally though, I would
make it a point ... No matter the cost .... To always run some 100LL
through the engine every couple of tank-fulls. Sure, running a 50/50
mix or so would be even better, but that can be cost prohibitive and
even may not be available in Europe in many locations. But you can
actually get by just running some 100LL through the engine once in
awhile and that will go a LONG way towards preventing the kind of damage
to the seats that can eventually happen.
Be aware that some pilots have claimed to have run M-14's hundreds and
hundreds of hours and the engines are still "just fine". Good for them.
I would still advise throwing some leaded fuel in there every so often,
regardless.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Wednesday, September 15, 2010 2:21 AM
Subject: RE: Yak-List: Yak 18T
Hello Didier,
It will be very difficult to find any lead additive on the market. The
existing additives are all without lead. They can be used to get a
higher octane number, but as far as I know, they're all quite toxic
(with toluene and benzene compounds) and I have my doubts.
There's a group of car-oldtimer guys in the UK who sell TEL in small
quantities, but it's very expensive, and you have to be knowledgeable
about it's use. Too much makes things worse. Then you'd better continue
with avgas.
Call me off list for the other questions if you want.
BR,
Jan
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Didier
Blouzard
Sent: woensdag 15 september 2010 12:15
Subject: Yak-List: Yak 18T
G'day to all,
I come back with a few questions concerning the Yak 18T and M14P.
First, I decided to use unleaded 98 as most of my friends yakees.
Since four full fills it seems to work fine . At least as good as with
100LL.
Question is would you recommend to put an automotive lead additive in
the fuel?????
Seems that the eastern friends doesn't care about additive.???
Second question. Does anyone have a 50 hours maintenance programm for
the M14P. If there is some pics for a beginner that would be great. But
at least a card.
Pics of all the fuel filters on the M14P and how to clean them would be
so very helpfull....
Third question, is it possible to purchase a hose for charging the main
gear shock absorbers???
Then last question, I am looking for a preoiling kit. Does anyone has
used one and where to buy it???
Or also a non electrical autonomous warming device for the
winter....working with gas or fuel???
Sorry to bother with so many question.
By the way I am happy to annouce my first aerobatic flight in my
18T...very smooth and absolutely non painfull for the plane....2g's max.
So excited!!!!
best regards and safe flights to all
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
http://www.matronics.com/Navigator?Yak-List
http://forums.matronics.com
http://www.matronics.com/contribution
Message 6
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Richard,
thanks so much for your very interesting answer.
For the TEL...I will just give 100LL to my motor every 5 fill.
In fact as we can't find 98unleaded in every field I will have to fill the
plane with 100LL from time to time.
But I want to keep an eye on the filters and the plugs for tracking records
every 20 hours.
For the preoiling pump you are right KISS (keep it safe and simple) is the
best way to do it. A simple electric pump with the good hoses and the work
id done. I will try to do something that can heat the oil in the same time.
Perhaps heting the oil directly into the tank with a resistor...??
Anyway, thanks so much for your kind answer
Didier BLOUZARD
2010/9/15 Richard Goode <richard.goode@russianaeros.com>
>
>
> The M14P has very good quality steel valve seats, and the Russians say th
at
> no additional help from lead is needed.
>
>
> But, I see no harm in adding lead ' a good idea to give it 100ll whenev
er
> you can.
>
>
> You can buy a lead product (TEL) for historic cars in the UK.
>
>
> It is not that expensive ' 130 Euro for enough to treat a thousand litr
es '
> and you do not need to put in nearly as much as they suggest, since they
are
> using it mainly for the Octane enhancer.
>
>
> There is no 50-hour check ' but my own view is it is prudent to look ov
er
> the engine every 50-hours, particularly if it is not often used.
>
>
> The only way to clean the fuel filters is ultrasonically.
>
>
> For the undercarriage oleos, you either get an engineering shop to make u
p
> connectors, OR convert them to a conventional automotive Schraeder valve.
>
>
> I think pre-oiling is a very good idea, and all you need is a separate
> supply from the oil tank through to a high pressure electric pump, going
> into one of the oil galleries, which then will circulate oil around the
> engine before starting. But I do not think that anyone makes a kit as su
ch.
>
>
> Richard Goode Aerobatics
>
> Rhodds Farm
>
> Lyonshall
>
> Herefordshire
>
> HR5 3LW
>
> United Kingdom
>
>
> Tel: +44 (0) 1544 340120
>
> Fax: +44 (0) 1544 340129
>
> www.russianaeros.com
>
>
> *
>
===========
===========
===========
===========
> *
>
>
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
Message 7
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| Subject: | Re: stainless metric screws needed |
Thanks everyone for the excellent information regarding sources for
metric stainless screws. I appreciate the response.
Joe
CJ6A N420RB
Joseph A. Colquitt
Beasley Professor of Law
The University of Alabama
School of Law
and Circuit Judge - Retired (Alabama)
This email is intended only for the person to whom it
is addressed. Any review or other use of this information
by persons or entities other than the intended recipient
or any retransmission without the consent of the sender is
prohibited. The views or opinions expressed by the sender
of this email are not necessarily those of the institution.
Message 8
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Don't put things INTO the tank. If the resistor blows up, then you have a
BIG problem, because you'll scatter small particles everywhere into the oil.
Only my 2 cents,
Jan
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Didier Blouzard
Sent: woensdag 15 september 2010 9:04
Subject: Re: Yak-List: 18T issues
Richard,
thanks so much for your very interesting answer.
For the TEL...I will just give 100LL to my motor every 5 fill.
In fact as we can't find 98unleaded in every field I will have to fill the
plane with 100LL from time to time.
But I want to keep an eye on the filters and the plugs for tracking records
every 20 hours.
For the preoiling pump you are right KISS (keep it safe and simple) is the
best way to do it. A simple electric pump with the good hoses and the work
id done. I will try to do something that can heat the oil in the same time.
Perhaps heting the oil directly into the tank with a resistor...??
Anyway, thanks so much for your kind answer
Didier BLOUZARD
2010/9/15 Richard Goode <richard.goode@russianaeros.com>
The M14P has very good quality steel valve seats, and the Russians say that
no additional help from lead is needed.
But, I see no harm in adding lead - a good idea to give it 100ll whenever
you can.
You can buy a lead product (TEL) for historic cars in the UK.
It is not that expensive - 130 Euro for enough to treat a thousand litres -
and you do not need to put in nearly as much as they suggest, since they are
using it mainly for the Octane enhancer.
There is no 50-hour check - but my own view is it is prudent to look over
the engine every 50-hours, particularly if it is not often used.
The only way to clean the fuel filters is ultrasonically.
For the undercarriage oleos, you either get an engineering shop to make up
connectors, OR convert them to a conventional automotive Schraeder valve.
I think pre-oiling is a very good idea, and all you need is a separate
supply from the oil tank through to a high pressure electric pump, going
into one of the oil galleries, which then will circulate oil around the
engine before starting. But I do not think that anyone makes a kit as such.
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Herefordshire
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
et="_blank">http://www.matronics.com/Navigator?Yak-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
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