shanty140

What do you guys use to seal your carb, etc? Like what exactly.

DaveG55

Permatex Ultra Copper

But any oxygen sensor safe rtv sealant will do the job just fine

PrjctStrtFrce

My Feedback: (10)

...where is the sealant applied?

DaveG55

For the carb, at the carb/engine block junction and around the pinch bolt
For the engine, between the block and the backplate

apply any sealant very sparingly to mating surfaces, it does not take a lot to do the job

PrjctStrtFrce

My Feedback: (10)

That's what I figured.

thanks

supertib

Permatex copper is not Nitromethane proof and therefore should not be used.... instead use RacersEdge sealant or Threebond 1211.............that copper stuff will work for a bit, but as soon as Nitro makes contact it will start to melt.....

supermod

diddo[X(]

JB COMP

Isn't the reacers edge stuff silicon too?



I've always used the red RTV and its never seem to melt.

What do yall use to seal the needles since I heard green slime will make the O-rings fall apart?

DaveG55

We've been through this argument before. I use the Permatex and have for years. It works and lasts just fine.

supermod

ya its good up to about 400

supertib

Don't get me wrong, I have used Permatex many many times...... but at the time it was the best thing I could find.... Since then I started using Threebond 1211 or Racers Edge which are both a superior products.... Permatex will work, but it is not Nitro proof and will slowly dissolve under constant exposure..of course it will hold its seal for a while but nothing like the other 2 products I use.........

The Racers Edge and Threebond seem to me to be identical products other then color.. they are a type if silicone, but are based off different solvents, they smell completely different then any other silicone I have seen... When the tubes are new they are almost a creamy texture that is easy to spread and use, almost like a thick hand soap...I use this stuff to fill my cranks after I have lightened them, once it cures it feels like very firm silicone............

proptop

My Feedback: (8)

supertib...that silicone you describe sounds a lot like "flowable" silicone that is typically sold in auto parts stores to seal water leaks around windshields.
I have been using it for a couple of years...and seems to hold up well. It doesn't have that strong vinegar (eye watering/nostril burning ) odor...or at least not quite as bad anyway.

dkastil

at autozone they have 700deg copper gasket in a gold tube i am shure it wont melt i have used it with no probs .I have a pico red dot .26 on the way is the racers edge the way to go .

supertib

1211 has a Latex smell to it, zero vinegar smell....

proptop

My Feedback: (8)

Ahh... O.K.
I will have to check that out...