I have a Turbo II S5. Running the TB mod, so i have the coolant nipple blocked off.
I was wondering what you guys have been using to block off the coolant nipple coming from rear rotor housing. There used to be a rubber nipple blocking it off with clamps. But it was leaking and it cracked. Now i've been trying to see what people use to block off the nipple. The engine is still in the car, so cannot grind it down , and thread a bolt in thenipple hole. I was thinking about using JB Weld dry/wet. It holds up to 300 degrees farenheight. I was wondering if that was enough to hold the boiling temp. of coolant.

THANKS

 

I ran a hose from the rear rotor housing, up to the water pump. Better than blocking off because the coolant still circulates through the system.

 

I aslo ran a line from the waterpump housing to the rear nipple. Never had any problems.
Dom

 

You could get a waterpump rubber cap from NAPA...they'll have them by the vacuum caps and nipples and such...if you're hell-bent on capping it. But you should do what Dom and Ryan did....

 

I drill, ream, and tap the block to accept an aluminum pipe plug.
I do the same to the water neck, except I tap to a larger size to accept a standard water temp gauge sending unit when one is chosen to be installed.
A wrap of teflon tape and making sure not to overtorque (and cracking the rear iron) and you're good to go.

No mess, no fuss.

 

Better... how? Block it off forces all of the coolant through the block, which aids cooling capacity. Minor aid, truly, but it still helps.

 

Then you definitely cannot use a hose.
Just magnetize your drill bit and tap and use plenty of grease when you tap it.
No problems.

 

i was stupid right after i rebuilt the motor, i forgot to tap that point and such. So instead of tapping it, since i didnt want metal shavings all in the coolant. Where the nipple was on the front of the motor i had cut that off and taped that for my water temp sensor. I actually on the rear nipple, packed that thing with JB weld. I made sure it was alittle stiff then pressed in down in, to make sure it didnt just drip through the nipple, so i did that, then i took a rubber nipple, put JB weld in that, and put that over the top with a clamp. Its holding great, though next time i am diffenetly going to tap her. Much safer.

 

What are you planning to do about the nipple on the back of the water pump? It would need to be blocked as well. A commonly available L-hose will work just fine - cut the ends to the appropriate length.

-=Russ=-

 

k thanks for the reply guys!