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throttle body coolant tube broke

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  #16  
Old 03-11-2010, 07:01 PM
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Originally Posted by rainbowATF
I considered the pipe thread and hose fittings to make a repair; however I weighed it against breaking the tap off in the Throttle body or cracking it and decided not to try. I removed the hose fitting on the intake standpipe fitting and plugged that. Then removed the T-fitting in the heater hose and replaced with longer hose. I used a piece of the T-fitting-bracket to cradle the hose to the alternator bracket as original.
Breaking the tap in aluminum or cracking the throttle body are pretty unlikely.........aluminum is fairly forgiving of error, drill reasonably straight and use the correct tap-drill size for 1/4 npt (use a bottom style tap.....blind hole tap ) , and you are 95% guaranteed success!
 
  #17  
Old 03-11-2010, 10:11 PM
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Originally Posted by quicklook2
i think i am "seasoned" enough to say what i said.

think about it:

in cold climate this may help vaporize fuel but if the engine is hot and the air around it is also hot then the warm coolant would not be needed.

after the engine is warmed up the additional heat from the coolant will not help it and in fact may hurt it.

i am in ohio now but while living in l.a. i bypassed my corvettes coolant lines to the t.b. and it ran better then it did with it hooked up.

hope this clears my view of this up for you.
I can see what your saying. I just don't know though. When I had it disconnected for a few months it didn't seem to drive any different and the fuel economy didn't change, so I put it back thinking that it would be good to have in the winter.
 
  #18  
Old 03-20-2010, 10:51 AM
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Thanks guys for the replies. I ended up just bypassing it. Its an old rusty but reliable truck but will probebly upgrade soon. Didnt seem to make a difference. Plus im lazy...lol
 
  #19  
Old 03-20-2010, 11:35 AM
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On the B body Chevy board this topic was discussed as related to the TB on LT1s. Most noted small increases in performance with no issues in cold climates or emissions. Some users use a bypass system to retain the heat benefit in winter. Since the Caprice is the wifes car I decided to leave it stock, but I have a bypass on the 300 for summer hauling.
regards
rikard
 
  #20  
Old 03-20-2010, 04:27 PM
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it's the injectors that do all the atomizing. The temp of the intake air isn't going to have anything to add or take away from that in the VERY short amount of time that the mix is getting pulled into the cylinder.
 
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