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Old 05-04-2006, 10:23 AM   #2296
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Quote:
Originally Posted by 4racer
hi,
i take a caliper to measured, from top sleeve to piston in tdc,
then i take the bottom plate and measure how mitch he goes in the sleeve,
and then i make shimming for headclearence.
when i take a conrod play from max 3/100 and a maximum rear bearing play from 4/100 mm so i get a total headclearence from +/-0.35-0.4 mm.
if i go what you say i must it to a total from 0,6 mm, this is big.
dieter
You are over complicating things too much. For the head clearance if I did it your way I would come to a figure that is totally different again as i shave anything up to 4mm off the bottom of the sleeve itself. Simply remove the plug from the engine and put a piece of solder in so that when the piston comes up it nips it. Measure the nipped piece and then shim accordingly to get 0.6mm. (eg - if the piece of nipped solder is 0.5mm then add 1 0.1mm shim).
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Old 05-04-2006, 10:24 AM   #2297
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Quote:
Originally Posted by 4racer
hi,
i take a caliper to measured, from top sleeve to piston in tdc,
then i take the bottom plate and measure how mitch he goes in the sleeve,
and then i make shimming for headclearence.
when i take a conrod play from max 3/100 and a maximum rear bearing play from 4/100 mm so i get a total headclearence from +/-0.35-0.4 mm.
if i go what you say i must it to a total from 0,6 mm, this is big.

he ed,
i have not read that you mean duration time, i have read that you mean closing time from cranckshaft, an this is 180° + 62° after tdc = 242°, right??

dieter
Hallo Dieter,

da scheint es einige Missverständnisse zu geben.

Bei den Kurbelwellensteuerzeiten geht das wie folgt:

Das öffnen wird in Winkelgraden nach unterem Totpunkt (UT) gemessen, d.
h., Du montierst eine Gradscheibe auf der Welle und justierst sie so, daß wenn der Kolben ganz unten ist, der Zeiger bei 0° steht. Dann drehst du die welle in Laufrichtung und schaust in den Einlassstutzen, wann das Fenster aufgeht. Z.Bsp: 35 nach UT, in Englisch 35° ABDC (after bottom dead center).

Dann drehst Du die Welle weiter bis Sie wieder schließt. Dabei hat sie den oberen Totpunkt überschritten (TDC, top dead center). Der Zeitpunkt an dem die Welle schließt wird in Winkelgraden nach OT beschrieben (ATDC, after top dead center), z.Bsp: 65° ATDC.

Die gesamte Öffnungszeit ist dann: 180°-35°+65° = 210°

Zur Kopfdichtung: Bei NovaRossigehäusen brauchst Du eine Aluscheibe mit 0,3mm um auf die korrekte Verdichtung mit 16% Sprit zu kommen.

Ich hab's Dir ja schon mal angeboten, ich mach Dir gerne einen Motor wenn Du möchtest und das kostet Dich auch nix. Du kannst aber gerne nochmal das ganze Lehrgeld, das Uriah Murnan und ich zusammen in mehr als 2 Versuchsjahren bezahlt haben, nochmals investieren.

Mit ein paar Steuerzeitenwerten kommst Du nich weit, das ganze muß zusammenpassen......
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Old 05-04-2006, 10:32 AM   #2298
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Ach übrigens, unser spezieller Freund in HH hat einen Fantini Motor aufgemacht, mit der Schieblehre dran rum gemessen und verkauft nun offiziell S&S Motorentuning.

Der hat keinen Schimmer warum was an dem Motor gemacht wurde, und die wirklich wichtigen Details hat er komplett übersehen.


For all non German speakers (what's wrong with you people), I just explained some basics that were lost in translation...
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Old 05-04-2006, 10:43 AM   #2299
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Yeah, what he said

I saw 0,3mm in there which sounds about right to me for a baseline head shims with 16% fuel.
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Old 05-04-2006, 10:46 AM   #2300
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Yeah. I picked up from the aweful Babelfish that that 0.3mm is the stock shim that comes on Nova engines.
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Old 05-04-2006, 11:18 AM   #2301
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Quote:
Originally Posted by Palmaris Europe
Yeah. I picked up from the aweful Babelfish that that 0.3mm is the stock shim that comes on Nova engines.

Stock Novas usually come with a alu shim (0,3mm) and a copper shim (0,1mm) which is about right for 30%.

0,3mm works for me for 16%.
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Old 05-04-2006, 11:27 AM   #2302
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Quote:
Originally Posted by stefan
Stock Novas usually come with a alu shim (0,3mm) and a copper shim (0,1mm) which is about right for 30%.

0,3mm works for me for 16%.
Not in the UK. Only silver shim. But we are always getting shafted in the UK.
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Old 05-04-2006, 12:08 PM   #2303
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Quote:
Originally Posted by Palmaris Europe
Not in the UK. Only silver shim. But we are always getting shafted in the UK.
Hey, what do you expect when you pay with funny money
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Old 05-04-2006, 12:09 PM   #2304
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hi stefan,
mach dir mal keine gedanken, ich weiß schon was in unseren motoren passiert,
ich denke der gute mann aus england hat einen etwas zu hohen kopfspalt in seinen motoren.
hier geht es eigentlich eher darum das missverständliche aussagen zum timing herrschen.

sorry, but my english is not good enough for translation my post


dieter
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Old 05-04-2006, 01:15 PM   #2305
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Quote:
Originally Posted by 4racer
hi stefan,
mach dir mal keine gedanken, ich weiß schon was in unseren motoren passiert,
ich denke der gute mann aus england hat einen etwas zu hohen kopfspalt in seinen motoren.
hier geht es eigentlich eher darum das missverständliche aussagen zum timing herrschen.

sorry, but my english is not good enough for translation my post


dieter
Ich habe nicht behauptet daß Du nicht weißt was in einem Motor vorgeht, aber Deine Aussagen zur Auslaßhöhe vor einiger Zeit und dein Post zum KW-timing passen nicht mit dem allgemeinen Wissen hier auf dem board zusammen.

Die missverständlichen Aussagen kommen eigentlich von Deiner Seite.

Ich werde das Thema Motoren nicht mehr ansprechen, versprochen...

Viel Spaß beim feilen.
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Old 05-04-2006, 03:28 PM   #2306
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Quote:
Originally Posted by 4racer
hi stefan,
mach dir mal keine gedanken, ich weiß schon was in unseren motoren passiert,
ich denke der gute mann aus england hat einen etwas zu hohen kopfspalt in seinen motoren.
hier geht es eigentlich eher darum das missverständliche aussagen zum timing herrschen.

sorry, but my english is not good enough for translation my post


dieter
Im still using the RS12 case (as I find it works better for me) and the standard head clearance without the shims was only 0.2mm on my engine. I know its not overshimmed and the head isnt too high. I'll post a picture of an old button head I have that I ran with just the silver shim.

Its possible that the newer Nova engines have a 0.3mm clearance without shims in which case the silver shim on its own will be fine.

I never overshim an engine. I tend to go the other way. I'll destroy whatever is necessary to find the lowest possible head clearance I can get away with. I always push my engines to the edge regardless of the cost so I know what the limits are.
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Old 05-04-2006, 03:41 PM   #2307
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the rex engines I got have no clearance without shims......so with 0.3 shim the total head clearance is exactly the thickness of the shim.....

and i keep this setting up to 20% nitro.........
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Old 05-07-2006, 02:40 PM   #2308
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Thumbs up Todd Bath did it again

Congratulation to AXIAL Racing sponsored driver Todd Bath with his TQ and 2nd place in A-main on first round of Central division RC Pro Series race in Huston TX.
His RRR was powered by Palmaris PROFI PR12 and Rocket Scince fuel.
Todd-you did it again!!!!! Really good work!!
Big thanks to Tommy Parfirio for his Rocket Science fuel. Seems like since Todd start using Rocket Scince fuel-his results went up.
Edward
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Last edited by EdwardN; 05-07-2006 at 03:47 PM.
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Old 05-08-2006, 07:55 AM   #2309
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Ed

MY mate EVO1 just won the Kyosho Cup here in the UK running BRB set. We are off to Paris form the finals in July.

I sent you a mail and we will need 3 sets for the finals. Let me know if you have in stock

Cheers
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Old 05-08-2006, 09:31 AM   #2310
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Quote:
Originally Posted by ziggy12345
Ed

MY mate EVO1 just won the Kyosho Cup here in the UK running BRB set. We are off to Paris form the finals in July.

I sent you a mail and we will need 3 sets for the finals. Let me know if you have in stock

Cheers
Hi Ziggy.
Thanks a lot for ammezing news.
I do have sets in stock. We will work out how to help you guys there.
Can you please tell me the name of your mate who won the Kyosho cup?
Edward
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