NSW Corvettes
Technical Tips => Radiators - Cooling => Topic started by: sirfixalot on January 31, 2012, 08:28:31 PM
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Does anyone know why a big block has a 3/4" hose from waterpump to inlet manifold it effectively by passes water going thru engine
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now that is a good question
A guess at this
if we are talking about the hose that come from the top of the water pump to the front of the manifold under the regulator ( thermostat )
I would think this is part of the by pass system that allow the engine to heat up to operation temp before the regulator starts to circulate water through the radiator.
Is there a by pass type regulator in the manifold
Are you having overheating problems
Bfit
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(http://i1093.photobucket.com/albums/i423/Bfitsvette/IMG_0578.jpg)
is that the hose RH middle of photo
Bfit
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Yep thats the little sucker motor overheats so today I have flushed block, radiator, checked impellor in pump all looks good so only thing I can think of is water is taking path of least resistance thru the pipe I have now capped off the 2 holes & drilled a 1/8" hole in thermostat. I have also fabricated block off panels for top & bottom of radiator. I am also going to fit a 7 blade fan in place of the 5 blade on it now.I also found a blob of solder was under seat for radiator cap where the overflow pipe has been previously repaired so coolant pumps straight out as soon as there is any expansion