what can join brass and aluminum(atleast thats what i think it is) together?
 

well, i had a little problem with my R1 throttle bodies that i got from ebay. i took out the injectors and tried to tap in some threads to put in a brass fitting. that didnt turn out well, and now i have 4 holes in there, and no brass fitting that would work. is there anything i can use to join them together without worrying about leaks when boosting and when NA? i was thinking about brazing them both together, but id like to hear what HMT thinks first

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

JB Weld :6

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

:y :y

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

brazing is your only option if you wanna do it right but it can be tricky when working with aluminum because aluminum has a very low melting point. Id suggest practicing on scrap pieces first

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

Silicon Bronze. We had to do it in school and it is some crazy ----. You only get it hot enough to suck into the joint. You have to use a tig though. It holds just as good as a weld. But the weird thing is you can't have any penetration on the base metal.

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

i was actually thinking something along the lines of that since its a cheap solution, but would it hold up to boost even if theres such a little amount on there?

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

i think princess auto(or harbor freight for you americans) sells aluminum brazing rods. would that do?

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

duck tape good for 40 psi

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

^48psi if it's camo!!!
+1 for brazing
Unless you can find some ungodly strong glue. Brazing is going to be stronger than epoxy (JB).
You can soldier brass to aluminum... But brazing is still stronger.

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

tape off one side and gorilla glue it woot woot

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

that ---- that was on here with the blowtorch
dura aweld or that?

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

Brazing is definetly stronger, but soldering greatly reduces the risk of melting parts.

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

ive read on wikipedia that the main difference between brazing and soldering is just the temperature. brazing requires temperatures over 800F while soldering requires temperatures under 800F, something along those lines atleast. anyways, i found a place that sells aluminum 'soldering' rods that have a working temperature of 750F, would this be sufficient for the task at hand?

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

would the solder be able to hold upwards of 15PSI?

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

I'll put it to you this way, home water pressure is 45-90 PSI and copper pipes are held together with solder.

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

sweet. ill take this into consideration when im choosing what to do. thanks man :y

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

maybe 80 at the feed line to the house but not in side ---- they only have to test the systems in the house to 45 psi

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

aluminum has a very high melting point. the hard thing about messing with aluminum is the window of melting and blowing through is very small

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

tap bigger holes, screw in a peice of metal, drill and tap it again, use teflon tape :P

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

Re: what can join brass and aluminum(atleast thats what i think it is) together?
 

I would ---- the dumb ---- and thread larger holes put adaptor sleeves in there then thread the fitting in and call it good. use oil and go slow when threading.