Aluminum intake and vacuum fusion snafu - now what?

[geezer#99]

That plastic is actually phenolic resin. Same stuff used for heat spacers on eddy carbs.
You can buy separate thread chasers. No need for a complete set unless you feel the need for more tools.
Are you gonna pull the intake to fix those threads?

[msg]

Originally Posted by Ziegelsteinfaust

Always antiseize aluminum.

You should be able to use that fitting.

But anti seize only on bolts right? Not when teflon is being added?

Originally Posted by AcampoDave

msg, if you use a tap on the treads I think it best to remove the part. Because shavings and particles could fall into the intake tract. Maybe that goes without saying, but look at it this way...if it works it's still worth it.

Removing the intake..well if its best to. Dang. If it were steel I could put a magnet in there. I guess what I need to do is invest in chasers for every port and do it all while its off the engine.

Originally Posted by geezer#99

That plastic is actually phenolic resin. Same stuff used for heat spacers on eddy carbs.

Which plastic parts do you mean Geezer?

Originally Posted by geezer#99

You can buy separate thread chasers. No need for a complete set unless you feel the need for more tools.

I may be buying this set at good ole HF

https://www.harborfreight.com/6-piec...BoC0iQQAvD_BwE

Id need a 5/16 and a 3/8 UNC chaser though as well to hit all of them.
Is chasing a better idea than tapping?

Originally Posted by geezer#99

Are you gonna pull the intake to fix those threads?

Ugh, looks like it unless I can rig up a catch block under and vacuum out the shavings.

Im attaching a screen grab of the specs, the installation instructions I got in the box doesnt have it. In fact the water pump inlet isnt listed or the thermostat housing so I need to look those up.