R/C Tech Forums - NOVAROSSI Engine thread....

From what I remember from the past is that people had issues to tune or (re)start engines with an aluminum carb. A plastic carb did solve that. And yes, heat in metals make them expand and that could have influence on the precise tuning some engines need,

sn47som1

04-26-2019 04:51 PM

Can you please recommend a throttle return spring for me or throttle bands that work well to close the Novarossi carb manually in case of servo or power failure? The usual hair bands Monty recommends ALWAYS break on me even if doubled up. Thank you

Chad Millikan

04-27-2019 12:31 AM

Quote:

Originally Posted by sn47som1 (Post 15439434)

There'sa couple that I have that work great. Dynamite RC makes one, Novarossi direct has some too
Throttle Return Spring
Dynamite RC Return Spring

harawong

04-29-2019 07:41 AM

Anyone have any ideas on how to remove seriously stuck head bolts? Previous owner used red loctite and 3 are impossible to get out and one is completely stripped. Any idea on how to get the 3 out and get the stripped one out? I’ve tried smacking the end of the screwdriver to try and loosen them and also tried heating up the head with no luck.

Roelof

04-29-2019 09:19 AM

heating up....

wichitafc98

04-29-2019 09:42 AM

Heat gun will break away red locktite

timjs

04-29-2019 09:56 AM

Set oven to 300. Bake 10-15 mins until golden brown.
To get the stripped screw, try tapping in a Torx. Theres usually a Torx size that works great to grabbing stripped hexes.

harawong

05-01-2019 04:13 AM

Do they still make replacement piston and sleeves for the 21-7 fms? Thanks in advance.

GripTLR

05-01-2019 01:49 PM

anyone know what size bearings in the Novarossi 28-8?

I am assuming sealed bearings are the way to go in a nitro engine?

I want to have an extra set of bearings just incase.

Thank you.

Never mind: found the answer on the Italian Novarossi website.

Stealthwave888

05-01-2019 10:59 PM

Hey guys im looking at a handfull of brands inc the novarossi mephisto 4port 21 buggy engine..

any one used this engine and what was your experience?

bottom , mid , top end.. Etc

idle , holds tune... Etc
thanks in advabce. :)

J.Whiting

05-02-2019 06:33 PM

Quote:

Originally Posted by Stealthwave888 (Post 15442421)

its a lot like the mantra motor.. good all over engine for buggy. 2135 pipe and 41021 for header is what ive ran. seems to do everything right in my eyes. no issues with mine at all but only had my novas since December..

Stealthwave888

05-02-2019 07:33 PM

Quote:

Originally Posted by J.Whiting (Post 15442928)

thanks so much , appreciate the input :) , what about rear and front bearings.. Do you really replace them much? :) seeing as their not cheap.. Ie 86 a pop...

Roelof

05-02-2019 10:56 PM

Quote:

Originally Posted by Stealthwave888 (Post 15442966)

thanks so much , appreciate the input :) , what about rear and front bearings.. Do you really replace them much? :) seeing as their not cheap.. Ie 86 a pop...

I can not tell for the offroad but with their onroad engines I do not need to replace front bearings very much. It is a standard size so you can find many cheap alternitives

Stealthwave888

05-03-2019 03:04 AM

Quote:

Originally Posted by Roelof (Post 15443021)

I can not tell for the offroad but with their onroad engines I do not need to replace front bearings very much. It is a standard size so you can find many cheap alternitives

thanks roelof

HaulinBass

05-03-2019 07:34 AM

Quote:

Originally Posted by Stealthwave888 (Post 15442966)

thanks so much , appreciate the input :) , what about rear and front bearings.. Do you really replace them much? :) seeing as their not cheap.. Ie 86 a pop...

Nova hasn't used those bearings in several years the rear bearing is a standard 25.8x14x6 the front bearing is the same as the 17011 but with an extra ball

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