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-   -   Red Silicone in Cranks (https://www.rctech.net/forum/onroad-nitro-engine-zone/333961-red-silicone-cranks.html)

Pattojnr 10-08-2009 03:58 AM

Red Silicone in Cranks
 
i have tried to go back as far through, to see if it has been asked before.

i have a Picco crank that the red putty has come loose causing tuning problems. is there a product to use in its place ? abviously i will remove the putty now its loose. thanks in advance. :)

JetMD 10-08-2009 06:45 AM

Someone recommended this one time so I saved the website. I never got the chance to try it though.

http://www.powersportsnetwork.com/ac...ries121737.htm

Pattojnr 10-08-2009 06:58 AM

thanks man. ill see if i can find some.

M7H 10-08-2009 07:01 AM


Originally Posted by Pattojnr (Post 6445352)
i have a Picco crank that the red putty has come loose

Question.
What type of afterrun do you use? (if any)

Pattojnr 10-08-2009 07:53 AM

hobbico red after run.
never had an issue with any other motor. ( i have had one come loose before, but was using novarossi after run)

well the real reason why i ask, haha sorry guys, i have a std flash 21 i have to do some work on. now the tuned version matches the crank hole nicely with the carb opening. but the std flash you see 2 mm or more of the crank towards the front bearing side. i want to remove the silicone and reshape the opening to match. then refill the hole. im trying out some red permatex hi temp RTV now, but i will see if i can get the right stuff. cheers.

M7H 10-08-2009 08:29 AM


Originally Posted by Pattojnr (Post 6446032)
well the real reason why i ask, haha sorry guys,

So actually the putty didn't come loose in the Picco engine, or did it?

Pattojnr 10-08-2009 08:32 AM

yes it was a picco that came loose. evo 3 .12

stefan 10-08-2009 10:21 AM

Motorsil D from Arexxon.

Pattojnr 10-08-2009 04:02 PM


Originally Posted by stefan (Post 6446643)
Motorsil D from Arexxon.

is this for After run Stefan ?

GREGORY! 10-08-2009 11:34 PM

you can just google it.
it's a sealant.

Pattojnr 10-09-2009 02:59 AM

i got the three bond 1211 today , so ill see how it goes using the threebond.
thanks guys.

stefan 10-11-2009 12:05 AM


Originally Posted by Pattojnr (Post 6447977)
is this for After run Stefan ?

It's the silicone that most manufacturers use in the cranks.

It's self levelling.

Pattojnr 10-11-2009 04:44 AM


Originally Posted by stefan (Post 6457286)
It's the silicone that most manufacturers use in the cranks.

It's self levelling.

thanks stefan.

i have let the threebond cure for 2 days now. as it is a test, i tried to get a screw driver in to pry it out, amazingly the screw driver will change its formation, but the filler wont even get close to lifting up from the sides. it has bonded it self very well to the crank. smooth and shiny finish , yet a little flexible. i will use the three bond from now on. quite easy to source, and a tube will do many cranks.:D


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