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Electric starter Insert for 1/2A Question

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Post  getback Fri May 06, 2022 12:47 pm

l have the starter for .15  to .60 size engines and have looked for the insert for 1/2As But don't seem to in existence.. I am thinking may be my starter want turn it fast enough for the jolt to start it, you know when you just bump it to the cone. Can someone else add to this thinking of mine OR know were I can get one ( Its a Hobbico I think?)  Thanks for your input in advance Smile Small Cox Logo Babe Bee .049 Small Cox Logo
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Post  Levent Suberk Fri May 06, 2022 4:32 pm

Can this insert work? It is for Hornet starter.

https://brodak.com/repalcement-adapter-for-hornet-starter.html
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Post  944_Jim Fri May 06, 2022 4:42 pm

Eric,
Any chance you have a digital caliper? A measurement of the aluminum cone inside diameter and depth would be good for comparison purposes. The Hornet IS a great 1/2A starter BTW.
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Post  davidll1984 Sat May 07, 2022 6:18 am

I use the big model .15 .60 engine from hangar 9 i just flip the existing insert is a smal hole on the other side its Not Perfect but work
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Post  getback Sat May 07, 2022 8:06 am

944_Jim wrote:Eric,
Any chance you have a digital caliper? A measurement of the aluminum cone inside diameter and depth would be good for comparison purposes. The Hornet IS a great 1/2A starter BTW.
Yes i have a inside measuring device but the starter is in the shop right now and i really don't know how to remove the old insert , i have tried pulling it out but didn't want to move . I have a new one for it for it witch it needs LOL
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Post  getback Sat May 07, 2022 8:14 am

Well i thought the insert was up here but don't see it , what is the measurements outside on the Sullivan?
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Post  944_Jim Sun May 08, 2022 8:39 am

getback wrote:Well i thought the insert was up here but don't see it , what is the measurements outside on the Sullivan?

Here you go!

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Post  getback Sun May 08, 2022 9:08 am

Thanks Jim I will see if I can find my new insert and compare it or even see if will go in backwards If there is a hole on the other end . I just don't wat to spend the $$$ for something I don't have to have . Very Happy Old Bugger
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Post  aspeed Sun May 08, 2022 10:54 am

The Hornet starter is great. I use a regular starter for everything. I have made acorn nuts out of 3/8" and mostly 3/4" hex for all my motors. I had to make an insert to fit inside a regular cone. I just used vacuum hose from a car and glued it with the polyurethane glue. To get the taper inside I used a die grinder with a porcupine bit while the starter was running to get it to run true. It has worked well for over 20 years, but the rubber is getting a bit sticky now. I just give a quick blips to start if needed after flipping unsuccessfully for 20 times by hand.
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Post  getback Sun May 08, 2022 11:41 am

That is a good Idea , I just don't understand why they don't have a insert for 1/2 A for the larger starters ( Is there a reason other than get you to purchase another starter?) Very Happy
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Post  getback Sun May 08, 2022 12:37 pm

Well I got the starter cone out and the hole on the other side is .0465 so that should work good ,, Jim my cone/retainer is over 1" and like a 1/4 ID. more so it wouldn't work but thank you for your time guys I found a place that tells me how to do anything to the Hobbico Torqmaster 90 I think i will ask him and see what he think on the subject ,, He may just tell me to take it out and turn it over IF its not worn to much .. This Site Rocks!
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Post  944_Jim Sun May 08, 2022 5:12 pm

Eric,

If you have a die-grinder, then do to the other side what ASpeed inidcates. A hard 90 degree corner will chew though the spinner as you see on mine above (cut a groove...it came to me this way).

My drawing shows the inner taper-cone, but only lists the diameter. The cone funnels in at about 45 degrees, thus increasing area of cone to spinner. This will increase the bite the starter has on these wee little engines...but it also decreases wear and tear on the spinner. You've got a hefty starter which can break our little guys in a blink. I don't think I need to mention "go lightly."

I also listed the shaft size, just in case you want to make a starter using Hornet bits, or even access a buddy with a machine shop.
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