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Post  mitchg95 on Tue Aug 14, 2012 5:25 pm

got an engine without spring and cannot find one anywere, if you can help me with this please do
thanks
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Post  RknRusty on Tue Aug 14, 2012 5:53 pm

mitchg95 wrote:got an engine without spring and cannot find one anywere, if you can help me with this please do
thanks
I didn't know there was such a thing. Have you seen .09 springs before?

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Post  Cox International on Tue Aug 14, 2012 6:10 pm

We do not believe that Cox ever manufactured a starter spring for their 09 engines.
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Post  mitchg95 on Tue Aug 14, 2012 6:11 pm

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Post  mitchg95 on Tue Aug 14, 2012 6:12 pm

Cox International wrote:We do not believe that Cox ever manufactured a starter spring for their 09 engines.

Huh... wonder why not? i may fire it up sometime... with earplugs, the correct motor mount, and a "whimp" stick
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Post  Cox International on Tue Aug 14, 2012 6:19 pm

The nipple is for crankcase pressure and not for a starter spring.
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Post  mitchg95 on Tue Aug 14, 2012 6:21 pm

Cox International wrote:The nipple is for crankcase pressure and not for a starter spring.

so it goes through the crankcase then? or how deos it work?
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Post  Cox International on Tue Aug 14, 2012 6:23 pm

Take a drill and drill right through the crankcase.

Have never done it but I am sure more experienced Cox enthusiasts on this site can supply more details.
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Post  mitchg95 on Tue Aug 14, 2012 6:25 pm

Cox International wrote:Take a drill and drill right through the crankcase.

Have never done it but I am sure more experienced Cox enthusiasts on this site can supply more details.

cool, i would like to learn more about this before drilling a whole in my crankcase
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Post  nitroairplane on Tue Aug 14, 2012 6:49 pm

As said, no 09 springs were made, the nipple is for "timed pressure" as opposed the backplates pressure fitting you sometimes see.
Drill it out and use a pressurised tank system.
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Post  RknRusty on Tue Aug 14, 2012 8:14 pm

Just make sure you really want a permanent hole in your crankcase before you do it. It would be a good idea to study up on pressurized fuel systems before you decide which type of tap you want.

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Post  Cribbs74 on Tue Aug 14, 2012 9:14 pm

If you are just looking for a pressure feed you may be better off tapping the backplate cover. I have read this is better. Either way it's easier to replace the backplate as opposed to the crankcase should you wish to go back to stock at a future date.
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Post  fit90 on Wed Aug 15, 2012 7:14 am

If you wish to use crankcase pressure I would recommend tapping the backplate. It steadily builds pressure in the fuel tank which compensates for the decreasing volume of fuel in the tank. Plus, if you decide you no longer need the pressure source you can easily plug the backplate tap with solder or epoxy and be able to reopen the hole again for future use. Good luck if you give it a go.

Bob
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Post  fit90 on Wed Aug 15, 2012 7:16 am

Also, if you are looking for a starter spring for an .09 you might want to try an NV starter spring. I slipped one over the front end of a Tee Dee .09 and it looks like it should work. I want to emphasize that I did not actually try it though, I just gave it a quick looking at. If you do try it let us chickens who did not try it know how it goes.

Bob
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Post  mitchg95 on Wed Aug 15, 2012 3:17 pm

i dont think i am going to pressure tap the .09, ill give the NV springs a look
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Post  microflitedude on Wed Aug 15, 2012 3:42 pm

My TD .010 is drilled for pressure. You can always plug the hole later if you decide you don't want to use it. The hardest part is making sure the crankcase bearing surface is free of burs.
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Post  nitroairplane on Wed Aug 15, 2012 4:19 pm

microflitedude wrote:My TD .010 is drilled for pressure. You can always plug the hole later if you decide you don't want to use it. The hardest part is making sure the crankcase bearing surface is free of burs.
It is!?!?!?!?!?
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Post  Cribbs74 on Wed Aug 15, 2012 5:06 pm

nitroairplane wrote:
microflitedude wrote:My TD .010 is drilled for pressure. You can always plug the hole later if you decide you don't want to use it. The hardest part is making sure the crankcase bearing surface is free of burs.
It is!?!?!?!?!?

I take it you didn't notice? lol!

They actually run fine with the hole exposed and no pressure line attached.
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Post  nitroairplane on Wed Aug 15, 2012 5:13 pm

cribbs74 wrote:
nitroairplane wrote:
microflitedude wrote:My TD .010 is drilled for pressure. You can always plug the hole later if you decide you don't want to use it. The hardest part is making sure the crankcase bearing surface is free of burs.
It is!?!?!?!?!?

I take it you didn't notice? lol!

They actually run fine with the hole exposed and no pressure line attached.
Nah Ron I never ran it, didn't get a chance as I got it around my busy time but then owed it to Matt.
How does it run Matt?
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Post  jsesere on Wed Aug 15, 2012 9:34 pm

Sorry about the picture quality. When I drink my vision gets blurrrry. lol!
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Post  microflitedude on Thu Aug 16, 2012 4:51 pm

nitroairplane wrote:
microflitedude wrote:My TD .010 is drilled for pressure. You can always plug the hole later if you decide you don't want to use it. The hardest part is making sure the crankcase bearing surface is free of burs.
It is!?!?!?!?!?

Yep. Smile

I have not been able to run it yet. Too busy moving.
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Post  dankar04 on Thu Aug 16, 2012 9:42 pm

TD .09 starts very easy and no need for spring. It will not run backwards. Wuzzes use a stick to start small engine. Wait till that stick gets slamed into your face. If afraid of cutting little fingie get section of heater hose so you don't get a booboo.. just ki Smile ding
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Post  gcb on Fri Aug 17, 2012 7:56 am

mitchg95 wrote:got an engine without spring and cannot find one anywere, if you can help me with this please do
thanks
Mitch,

You may be confused by the discussions.

The nipple on the side is for pressure IF YOU NEED/WANT to use it. No Tee Dee engines come with the hole pre-drilled. As someone mentioned, if YOU decide to drill it, make sure you remove any burrs inside the crankcase afterward. I have never found need for the pressure nipple and I have only one Tee Dee that has been drilled (bought it used).

As folks pointed out, there is no TD .09 spring. Tee Dees are considered competition engines and the springs are unnecessary extra weight. One exception is the TD .010 which is so small some find it hard to flip.

If you don't feel comfortable flipping the TD .09 you can always use a chicken stick or finger protection. Good luck with yours.

George
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Post  nitroairplane on Fri Aug 17, 2012 8:08 am

gcb wrote:
mitchg95 wrote:got an engine without spring and cannot find one anywere, if you can help me with this please do
thanks
Mitch,

You may be confused by the discussions.

The nipple on the side is for pressure IF YOU NEED/WANT to use it. No Tee Dee engines come with the hole pre-drilled. As someone mentioned, if YOU decide to drill it, make sure you remove any burrs inside the crankcase afterward. I have never found need for the pressure nipple and I have only one Tee Dee that has been drilled (bought it used).

As folks pointed out, there is no TD .09 spring. Tee Dees are considered competition engines and the springs are unnecessary extra weight. One exception is the TD .010 which is so small some find it hard to flip.

If you don't feel comfortable flipping the TD .09 you can always use a chicken stick or finger protection. Good luck with yours.

George
And the .020 but they are less common.
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Post  gcb on Fri Aug 17, 2012 5:43 pm

nitroairplane wrote: And the .020 but they are less common.

Thanks. Don't have one of those and I wasn't sure.

George
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