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Old 09-21-2009, 08:14 AM   #1
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Default Anyway to unpinch an engine??

A buddy of mine is trying to learn how to mod engines, and I gave him my worn out P\S from my RBWS7II, and he got it WAY to tight, is it any way of rounding the sleeve back a little. I doubt it just asking. I tried heating it to about 225° and it still wouldn't turn over.
TIA Joe
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Old 09-21-2009, 09:02 AM   #2
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A buddy of mine is trying to learn how to mod engines, and I gave him my worn out P\S from my RBWS7II, and he got it WAY to tight, is it any way of rounding the sleeve back a little. I doubt it just asking. I tried heating it to about 225° and it still wouldn't turn over.
TIA Joe
send it to raya racing

he also fixes
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Old 09-21-2009, 10:20 AM   #3
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Cool Thanks, And I will be hitting you up for another engine in a month or two, I need a "Bad Mo Fo" for a truggy I'm building!
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Old 09-21-2009, 12:00 PM   #4
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Cool Thanks, And I will be hitting you up for another engine in a month or two, I need a "Bad Mo Fo" for a truggy I'm building!
just get a hold of me when you are ready
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Old 09-21-2009, 02:27 PM   #5
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I can also fix sleeves that are too tight, you can pm me. I am a bit confused though, your friend was modding it and it got too tight, did he try to pinch it or was it just from cutting on it?

Rex
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Old 09-21-2009, 02:42 PM   #6
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He pinched the chit outta it with a pipe clamp, I'm going to put the clamp on his uh, well you know what and pinch it
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Old 09-21-2009, 03:56 PM   #7
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and this buddy of yours said a hose clamp would suffice ?
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Old 09-21-2009, 04:10 PM   #8
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You just learned how not to have an engine Pinched
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Old 09-21-2009, 04:20 PM   #9
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Yup, I doubt a pipe clamp could pinch a sleeve and keep it round.

Aren't the sleeve pinchers useing something similar to the hydraulic collet press machine that crimps fittings onto hydraulic lines? Not really a cheap tool.
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Old 09-21-2009, 04:47 PM   #10
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YES I know, he done his and told me it would work, and I didn't need the engine any more since I got my new mill from H.E.S., But now I need a engine for a truggy I'm putting together and have sent the P\S to RayAracing
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Old 09-22-2009, 12:57 AM   #11
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Funny thread - this is the nitro equivalent of electric "racers" "truing" comms with sandpaper

Paul
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Old 09-22-2009, 02:49 AM   #12
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Funny thread - this is the nitro equivalent of electric "racers" "truing" comms with sandpaper

Paul
I have seen that done, chuck the arm in a drill and hold sandpaper on the comm. That's why I have a Hudy lathe with standard and diamond bits.
And a gauss meter, and a few Dynos and laptops, and a can zapper, and anything else you want for flashlight powered cars
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Old 09-22-2009, 02:58 AM   #13
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I have seen that done, chuck the arm in a drill and hold sandpaper on the comm. That's why I have a Hudy lathe with standard and diamond bits.
And a gauss meter, and a few Dynos and laptops, and a can zapper, and anything else you want for flashlight powered cars
Take it easy, I'm sure you do - it's just that your friend doesn't and that was pretty daring from his side to assume he can mod motors and resize sleeves with such inadapted tools as what he used. In electric racing too, a lot of people also like to "experiment/maintain" (read: destroy) motors with cost-saving ideas (pinching a precision engine with a pipe clamp... )... never works, from the sandpapered comm, to the refurbished bearing, and let's not forget the home-wound 8 double with coathanger wire!

Good luck to your friend

Paul
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Old 09-22-2009, 03:09 AM   #14
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Oh, I'm easy, just saying I don't "Shade Tree" stuff. Just gave him the engine to mess around with, now I need it for a truggy I'm putting together and don't want to dump $120 for a new P\S, I will but a new Toro Nero first, so I sent my clamped P\S to RayA for a fix and bought a new rod. It already had new ceramic TKO bearings and all new o-rings in it, and a new turbo head, so it should be a pretty good engine when Ray gets done.

Do you still have your Lunchboxes in your avatar?
I got some old Tamiya's myself, old Blackfoot, only ran once, decals not even put on, A Monster Bettle, A Midnight Pumpkin, A Frog, most of a Hornet.
Anyway Later Dude!
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Old 09-22-2009, 06:14 AM   #15
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Do you still have your Lunchboxes in your avatar?
I got some old Tamiya's myself, old Blackfoot, only ran once, decals not even put on, A Monster Bettle, A Midnight Pumpkin, A Frog, most of a Hornet.
Anyway Later Dude!
Only one of the on the pic VLB's is mine - the other is a collecting buddy of mine's... I regularly run my Monster beetle, Boomerang (the real one from 86), Big bear, Fire Dragon and so on so forth... then I drive my mbx6, my AE FT B4, and my HB Cyclone and I realize how long a way we've come in 20yrs


End of the off-topic

Paul
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