Quote:
Originally Posted by Dtodt223
Where's the 5th? I only found 4 on mine.
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One on each side of the block, one on the bottom of each intake manifold, one that is located on the hose that is attached to the water pump, at the lowest point there is an inline plastic elbow with a drain plug in it. 5 total. If you do not have that elbow with the drain in it then that low spot will not drain. Now one of two things is possible, this elbow insert was an adaptation that was added by the MFG to all later models or somebody replaced the entire thing with a single hose that may or may not drain completely.
Either way - I'd make darn sure there was no water sitting in that over the winter if there is no drain present. Easy enough to just pop that hose and drain it.
The only reason why I would favor backfilling with antifreeze is to remedy any areas that do not completely drain using this as a prime example.