Brass adapeter to coolant line to throttle body came out of head

[Dartos]

I was out riding today and this fitting came out of the head. I can push it in but it come right back out. How is this thing installed so it doesnt come out?

 

[BIGGDAWG]

we have had this happen what i did was take a tapered punch and insert in the opening of the fitting and lightly tap on it to expand it a little. then i applied some jb weld and pressed/tapped it back in and let it harden hasn't came out again.

 

[Z-Man]

I was thinking JB weld but wasn't sure how it would hold up to the pressure. Sounds like BiggDawg has put it to the test. I checked the parts fish and they do not show a separate part for that fitting, so JB Weld or a replacement head or the options.

 

[Dartos]

Thanks. I assume it would be some kind of sealant but i guess JB weld will work.

Jeff

 

[Z-Man]

They were press fit into the head.

 

[rdnorman]

I had the same thing happen so i took my head off and drilled and tapped it to pipe thread so i wouldn't have to worry about it comming out.

 

[Z-Man]

SLP heads don't even have it.

 

[BIGGDAWG]

the fitting is just for the throttle body warmer. lot of guys block them off. and yes any sled with the full slp kit it is blocked off.

 

[Z-Man]

the fitting is just for the throttle body warmer. lot of guys block them off. and yes any sled with the full slp kit it is blocked off.

Wouldn't think it would cause any problems, just have warm up the sled before riding, which should be done anyway. I wonder if you could find a freeze plug that would fit in that hole.

 

[BIGGDAWG]

the reason they run coolant through the throttle bodies is to keep them from icing in really cold temps.

 

[sw]

Interesting, Dawg what do you think of my theory on this? Now no lab tests have been performed!, but I think that while those lines are meant to keep throttle bodies from freezing, I've a hunch they probably help to cool the whole TB assembly, since the Y-pipe is approximately the temperature of the sun, sitting directly above? ....It's amazing how much JB weld can come to the rescue!

 

[Z-Man]

Interesting, Dawg what do you think of my theory on this? Now no lab tests have been performed!, but I think that while those lines are meant to keep throttle bodies from freezing, I've a hunch they probably help to cool the whole TB assembly, since the Y-pipe is approximately the temperature of the sun, sitting directly above? ....It's amazing how much JB weld can come to the rescue!

Hot water running through your throttle bodies is not going to cool them nearly as much as cool air flowing through them. They heat them on cars to make them run better when it's cold but you almost always do away with it when you are building for performance.

 

[BIGGDAWG]

Interesting, Dawg what do you think of my theory on this? Now no lab tests have been performed!, but I think that while those lines are meant to keep throttle bodies from freezing, I've a hunch they probably help to cool the whole TB assembly, since the Y-pipe is approximately the temperature of the sun, sitting directly above? ....It's amazing how much JB weld can come to the rescue!

my honest opinion is they don't cool them but it is a possibility, the radiant heat from the exhaust could do as you say but the air moving through the throttle bodies would cool them. the real purpose is to keep them from icing but i could be wrong wouldn't be the first time

 

[Dartos]

So I used a tapered punch to enlarge the fitting a bit. I decided to use Loctite 609, made for press fit cylindrical joints. I'll give it a test ride this weekend.

 

[05900]

The Loctite should work fine if applied to clean surfaces,have had good results with it except when in a hurry this one time......