Ok im about to finish my tb mod, should i use jb weld (double as strong takes double as long to set) or jb quik weld ( 1/2 as strongs sets double as fast)

i figure jb weld is a better choice but i dont know if it really matters ?

 

I suppose getting it properly welded by an aluminum welder isn't an option?

Go with JB Weld if you're going to do it that way. A chunk of hard stuff breaking off and going through your engine will make for a bad day/month.

-=Russ=-

 

i heard lots of ppl use jb weld for the tb mod

 

I used JB weld on my TII about four years ago. Still holding just fine.

However, if you do have access to a tap.... it is a 1/8 npt that will tap it.

That of course...is the better option.

And use the reg. jb weld and let it cure like it says. Don't forget to score up the metal inside the hole.

Edit

Yeah, I forgot what is the right tap...doh

 

Tap it out and put a pipe plug in it.
1/4" npt iirc

 

i did tap it, the plug i have is a beast tho and has a square end on it where u turn it, it is also hollow 1/2 way thru and when screwed all the way in it isnt fully all the way into the tb where the hole inside is , so i figured ill have the best of both worlds

i figured id jb weld the hole and smooth it out for better airflow (sand it) and do that on both sides (both holes for where the throttle body shaft went)

i also tapped and plugged up the lim where the 5/6 ports go ,

 

what do u mean by score ? like scrape some metal off b4 i apply the jb weld or do what ?

i took off the metal tube on the bottom where the actuators are, i was told taking it off and just leaving the holes there where the bolts were has no effect on anything

in addition when i tapped the holes for where the 5/6 ports go (im removing them), a small crack is where the threads start maybe it goes in like 2-4 threads in..so i put in the plug/bolt whatever and threaded it in as deep as i could hoping i wont get any vacuum leaks...should i be ok ?

 

yeah scrape it up to allow a better bond

 

i used the quik, worked fine

 

I used bolts, just cut them so they bolted in a little far, used RTV on them, then I ground them flush.

 

I used JB weld and it's working well still. I cleaned everything thouroughly, put some masking tape over the hole on the inside of the TB and filled it up while I had the whole assembly sitting on it's side out of the car.

The important part is to have it overflow a bit so you get a lip on the outside that prevents the JB plug to get sucked in and **** your engine up.

In the worst case it will fall out while braking and hit your fan causing a blade to shoot off, ding up your radiator and then fly underneath one of the rear tires causing you to lose traction on a windy costal cliffside road and land in one of those little scooter rental places on the coast.

That's highly unlikely however. You'd probably just suffer from a horrendous idle until you plugged it back up.

 

if you have a pipe plug in there use bondo, yes body filler to fill it in and smooth it out. if by chance it does come loose it will not damage the engine. i have seen quite a few people use it in intake manifolds to smooth out poor flowing areas.

 

welll i already got a brass 1/8" fitting in the hole that i tapped so its got something in there but it just didnt go in deep enuf... as long as it will hold with that brass fitting threaded in there (its hollow on the end and goes solid half way thru- bought this at lowes) .. i dont want anything to **** up my engine after having put over 3000 into the car already

the other hole on the other side doesnt look like it can be tapped from the outside...maybe if u take off the thermowax assembly it can be ...but im keeping that on

 

Bondo sucks. Use all-metal!

 

i donno how trusting i am on that lol, im still worried that the jbweld wont bond to my thing cuz it has a hollow brass fitting that goes from hollow to solid half way thru , but im double and triple checking everything will be ok...as i have put alot of work into this car and dont want something stupid ******* it up

 

A little off-topic, but where do you get that stuff and how does it compare to bondo? I've always heard that Bondo blew for body work but never have tried anything else.