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Cox Engine of The Month
Cox International wish list
Page 1 of 6
Page 1 of 6 • 1, 2, 3, 4, 5, 6
Cox International wish list
Thought I would start a thread on parts and pieces we would like to see Bernie and the crew produce, or at least look into producing.
I will start it off by saying I would like to see a quality set of head and cylinder tools made. I have a old Cox steel stamped wrench that fits head slots and cylinders well, but the other ones I have must be Estes wrenches or ??. I have popped several head fins off with the old wrenches because the engagement lugs don't stand tall enough and slip under the fins. Those old wrenches have since met the trash bucket.
Maybe a tighter tolerance stamped steel wrench or a hard anodized alum tool that will engage properly. It would have to be two wrenches to allow you to hold the cylinder with one and remove the head with the other.
I will start it off by saying I would like to see a quality set of head and cylinder tools made. I have a old Cox steel stamped wrench that fits head slots and cylinders well, but the other ones I have must be Estes wrenches or ??. I have popped several head fins off with the old wrenches because the engagement lugs don't stand tall enough and slip under the fins. Those old wrenches have since met the trash bucket.
Maybe a tighter tolerance stamped steel wrench or a hard anodized alum tool that will engage properly. It would have to be two wrenches to allow you to hold the cylinder with one and remove the head with the other.
PV Pilot- High Tech Balsa Basher
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Join date : 2011-08-11
Age : 57
Location : The ragged end of the Universe.
Re: Cox International wish list
Look at the thread "production of cox engines today" you will see why getting things made may not be worth while for the sellers.
But I would like to see .010 parts made again like cranks cylinders and pistons but we have discusses it already and that is not going to happen as the retail price would be too high.
But I would like to see .010 parts made again like cranks cylinders and pistons but we have discusses it already and that is not going to happen as the retail price would be too high.
Re: Cox International wish list
PV Pilot wrote: I have popped several head fins off with the old wrenches because the engagement lugs don't stand tall enough and slip under the fins.
To prevent this I use TWO wrenches doubled together using small "C" clamp.
To remove a frozen cylinder, I use two small blocks of soft wood using them in a small vice to hold them snuggly together thus obtaining a firm but not too tight purchase on the cylinder. Then turn the crankcase CCW.
Works for me.
SuperDave
SuperDave- Rest In Peace
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Join date : 2011-08-13
Location : Washington (state)
Re: Cox International wish list
That's my method as well.SuperDave wrote:...To remove a frozen cylinder, I use two small blocks of soft wood using them in a small vice to hold them snuggly together thus obtaining a firm but not too tight purchase on the cylinder. Then turn the crankcase CCW....PV Pilot wrote: I have popped several head fins off with the old wrenches because the engagement lugs don't stand tall enough and slip under the fins.
If cost was not an issue, I would like to see production of pre-'96 Black Widow cylinders that have the deep bypass ports and a matched piston set. I'd put that on all of my Bees. That is a one of a kind cylinder and the only ones out there are all on engines. When they wear out they're gone.
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: Cox International wish list
We already have manufactured the wrenches for all the Cox engines and they are for sale here:
http://coxengines.ca/home.php?cat=41
Stainless steel is the material of choice as they resist bending and premature wear.
For our own use we had manufactured a commercial grade set of head and cylinder tools. Cost = $300.
Re pre-1996 cylinders. These are essentially like these:
http://coxengines.ca/product.php?productid=119&cat=13&page=1
and our tests have shown that they outperform the OEM pre-1996 BW cylinders.
Bernie
www.coxinternational.ca
http://coxengines.ca/home.php?cat=41
Stainless steel is the material of choice as they resist bending and premature wear.
For our own use we had manufactured a commercial grade set of head and cylinder tools. Cost = $300.
Re pre-1996 cylinders. These are essentially like these:
http://coxengines.ca/product.php?productid=119&cat=13&page=1
and our tests have shown that they outperform the OEM pre-1996 BW cylinders.
Bernie
www.coxinternational.ca
Re: Cox International wish list
They have to have the Tee Dee high compression head to out perform the old BW, don't they? Otherwise it's the same as any non-SPI cylinder, IIRC.Cox International wrote:We already have manufactured the wrenches for all the Cox engines and they are for sale here:
http://coxengines.ca/home.php?cat=41
Stainless steel is the material of choice as they resist bending and premature wear.
For our own use we had manufactured a commercial grade set of head and cylinder tools. Cost = $300.
Re pre-1996 cylinders. These are essentially like these:
http://coxengines.ca/product.php?productid=119&cat=13&page=1
and our tests have shown that they outperform the OEM pre-1996 BW cylinders.
Bernie
www.coxinternational.ca
What do you think it would do with a short piston, giving it the addition of SPI?
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: Cox International wish list
That is incorrect as the cylinders actually have the TD porting inside; which is more aggressive than the old Black Widow ones.
The cylinders do not work well with our SPI pistons are there is "too much SPI". We ran tests with them. Even though they are non-SPI the RPM is almost identical to the old SPI Tee Dee cylinders; which substantiates that SPI is not that important for rotary valve Cox engines.
If you really want a Black Widow engine to scream, this is the product to use:
http://coxengines.ca/product.php?productid=122&cat=13&page=1
On reed valve engines we have seen RPM increases anywhere from 2,000 to 5,000 RPM. It really depends on the engine. On a Black Widow it matches or exceeds pre-1996 specs.
Bernie
ww.coxinternational.ca
The cylinders do not work well with our SPI pistons are there is "too much SPI". We ran tests with them. Even though they are non-SPI the RPM is almost identical to the old SPI Tee Dee cylinders; which substantiates that SPI is not that important for rotary valve Cox engines.
If you really want a Black Widow engine to scream, this is the product to use:
http://coxengines.ca/product.php?productid=122&cat=13&page=1
On reed valve engines we have seen RPM increases anywhere from 2,000 to 5,000 RPM. It really depends on the engine. On a Black Widow it matches or exceeds pre-1996 specs.
Bernie
ww.coxinternational.ca
Re: Cox International wish list
Thanks for the reply Bernie.
A new design DC 1/2A starter would be another one for the list. Since no one is making these any more it seems.
A new design DC 1/2A starter would be another one for the list. Since no one is making these any more it seems.
PV Pilot- High Tech Balsa Basher
- Posts : 1854
Join date : 2011-08-11
Age : 57
Location : The ragged end of the Universe.
Re: Cox International wish list
PV Pilot wrote:Thanks for the reply Bernie.
A new design DC 1/2A starter would be another one for the list. Since no one is making these any more it seems.
Sulivan makes a 1/2a starter called the Sullivan hornet.
Re: Cox International wish list
A email from Sullivan when I enquired:
Thanks for your interest in our S598 Hornet Starter.
The Hornet has been out of production for quite a while now due to a redesign in the starters case.
As of today I don't have an ETA, but I will keep your info on file for product updates.
regards,
Alex
Sullivan Products
Thanks for your interest in our S598 Hornet Starter.
The Hornet has been out of production for quite a while now due to a redesign in the starters case.
As of today I don't have an ETA, but I will keep your info on file for product updates.
regards,
Alex
Sullivan Products
PV Pilot- High Tech Balsa Basher
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Join date : 2011-08-11
Age : 57
Location : The ragged end of the Universe.
Re: Cox International wish list
That is unlucky but I have never used an electric on any cox engines and do note believe it to be necessary.
Re: Cox International wish list
nitroairplane wrote:That is unlucky but I have never used an electric on any cox engines and do note believe it to be necessary.
Nor do I. My "starter" is located on my hand right next to my index finger.
SuperDave
SuperDave- Rest In Peace
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Join date : 2011-08-13
Location : Washington (state)
Re: Cox International wish list
Mine is located in between my thumb and the finger I use for gettin back at people who cut up on the road.
Last edited by nitroairplane on Thu Aug 25, 2011 2:36 pm; edited 1 time in total
Re: Cox International wish list
nitroairplane wrote:Mine is located in between my thumb nd the finger I use for gettin back at people who cut up on the road.
AKA your "social finger".
SD
SuperDave- Rest In Peace
- Posts : 3552
Join date : 2011-08-13
Location : Washington (state)
Re: Cox International wish list
SuperDave wrote:nitroairplane wrote:Mine is located in between my thumb nd the finger I use for gettin back at people who cut up on the road.
AKA your "social finger".
SD
yes it comes out at all social occasions
Re: Cox International wish list
Or you COULD say it's right next to the finger you use for pickin' your nose.
(When no one is lookin' of course)
BUHHHHHHHA!
SD
(When no one is lookin' of course)
BUHHHHHHHA!
SD
SuperDave- Rest In Peace
- Posts : 3552
Join date : 2011-08-13
Location : Washington (state)
Re: Cox International wish list
SuperDave wrote:Or you COULD say it's right next to the finger you use for pickin' your nose.
(When no one is lookin' of course)
BUHHHHHHHA!
SD
That is the Dog for victory shovel.
When I was like 4 of course.
Re: Cox International wish list
Part 1, SPI on a Tee Dee; now I feel like a dufus. I forgot about the rotary valve. SPI raises the crankcase pressure right before the reed opens causing a larger burst of fuel when the pressure drops during the intake cycle. That's the way I understand it anyway, I hope I got that part right. So that pressure would cause an undesired reduction in intake volume, or worse, and slow down a Tee Dee.Cox International wrote:That is incorrect as the cylinders actually have the TD porting inside; which is more aggressive than the old Black Widow ones.
The cylinders do not work well with our SPI pistons are there is "too much SPI". We ran tests with them. Even though they are non-SPI the RPM is almost identical to the old SPI Tee Dee cylinders; which substantiates that SPI is not that important for rotary valve Cox engines.
If you really want a Black Widow engine to scream, this is the product to use:
http://coxengines.ca/product.php?productid=122&cat=13&page=1
On reed valve engines we have seen RPM increases anywhere from 2,000 to 5,000 RPM. It really depends on the engine. On a Black Widow it matches or exceeds pre-1996 specs.
Bernie
ww.coxinternational.ca
Part 2, wanting my BW to scream; I learn something every day, I did not know the porting of a new type SPI cylinder was more aggressive than the old #1 SPI cylinder. Just to be clear, I believe this is the one you mean. Gotta get that on my shopping list soon. A Much safer way to boost it that 35% nitro.
Is the Tee Dee cylinder any different from that one, other than having open exhaust? If I put it on a BW, how would that compare to the SPI set. How about with and without the high compression Tee Dee head? Or the Tee Dee head on the SPI set. Dang, I'm awfull inquisitive ain't I. Well when I have the attention of the man, I better take advantage of it.
In one swipe, you rendered two of my earlier posts in this forum answered.
Thanks, Bernie
Rusty
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: Cox International wish list
Another thing to remember is that the older TD cylinder/pistons were also tapered. This resulted in higher performance than a standard Black Widow cylinder/piston set.
Matt
Matt
Attn: Matt/Bernie
Does anyone have any plans (or know a source) for any thrust washers for the Tee Dee .09? I have one that is a little "chewed up" around the edge...
Thanks!
Allen
Thanks!
Allen
AT1984- Gold Member
- Posts : 146
Join date : 2011-08-16
Location : Spanaway, WA
Bernie
Is that the same P&C used on the KillerBee you sell.? That engine looks to have similar power to a Medallion .049
Cz10- Gold Member
- Posts : 229
Join date : 2011-08-17
Re: Cox International wish list
AT1984 wrote:Does anyone have any plans (or know a source) for any thrust washers for the Tee Dee .09? I have one that is a little "chewed up" around the edge...
Thanks!
Allen
Allen,
They should be done in a month or so.
Regards, Matt
Re: Cox International wish list
AT1984 wrote:Does anyone have any plans (or know a source) for any thrust washers for the Tee Dee .09? I have one that is a little "chewed up" around the edge...
Thanks!
That will teach you about using pliers on aluminum!!!!!
SuperDave
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Join date : 2011-08-13
Location : Washington (state)
Pliers?
SuperDave,
I didn't use the pliers on the prime example of the Tee Dee .09 I just bought...The previous owner did that! It's in REALLY nice shape, other than the washer.
Matt: Thanks for the reply. Just so there's no confusion: I'm talking about the phenolic washer that goes behind the drive plate.
Thanks again,
Allen
I didn't use the pliers on the prime example of the Tee Dee .09 I just bought...The previous owner did that! It's in REALLY nice shape, other than the washer.
Matt: Thanks for the reply. Just so there's no confusion: I'm talking about the phenolic washer that goes behind the drive plate.
Thanks again,
Allen
AT1984- Gold Member
- Posts : 146
Join date : 2011-08-16
Location : Spanaway, WA
Re: Cox International wish list
AT1984 wrote:SuperDave,
I didn't use the pliers on the prime example of the Tee Dee .09 I just bought...The previous owner did that! It's in REALLY nice shape, other than the washer.
Matt: Thanks for the reply. Just so there's no confusion: I'm talking about the phenolic washer that goes behind the drive plate.
Thanks again,
Allen
Allen,
Yes, they will be the thrust washer not the prop driveplate. We already have those in stock.
Matt
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