[Don L.]

I figure it must be something that has been done before by someone, though I never had the need. On parts like the throttle bodies or other intake pieces, there is often a brass (?) fitting that seems to be press fitting into the aluminum. When these brass fittings corrode away, or just fall out, how best to replace them and what keeps them attached ?
Thanks !

Don L.

 

[SilverMk2]

Never had this problem, but drill it out and press a new one in would be my guess. I guess if you had enough meat you could thread it out and install a nipple in it. BTW most of those fitting are cad plated steel, not brass.

 

[Dave A.]

Is the fitting the only part that's ruined from corrosion? If the aluminum part is still in good shape, you could drill and tap the aluminum with the proper size drill bit and pipe tap and use the proper size brass pipe fitting. Or, if you can find an exact replacement fitting, just clean up the aluminum real good and press in the new fitting with a little bit of J B Weld to help seal and secure the fitting.

 

[Don L.]

Ahh, the ever useful JB Weld. Maybe will try that. The fitting is actually not corroded away, just seems to have become loose from the aluminum body. I was thinking red hi-temp gasket maker, but JB Weld sounds better. Thanks !

Don L.

 

[Dave A.]

Stick with the J B Weld. The red silicone stuff is too flexible for the type of repair that you're doing. Just be sure to thoroughly clean both parts before re-assembly. I try to keep a supply of J B Weld in my toolbox. That way it's always there if I need it. Does anyone remember the old TV commercial for J B Weld where they stuck two valve heads together and claimed that the bond was stronger than the valves themselves? I actually tried that stunt once many years ago and I had a heck of a time seperating the valves without bending the stems...or using a propane torch. :wink:

 

[dogstar]

i love jb weld, and id also recommend it for the repair, as it sounds like the better solution.

tapping aluminum usually leads to trouble, at least for me, but i might be the reason, cause i tend to over tighten non load items
:?

 

[StanS]

and remember, silicon rubber outgassing (when new) used on the
intake can destroy your ox sensor.

StanS