Thread: Hard starts
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Old Apr 17, 2012 | 12:25 PM
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onehundred80
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From: Ontario
Default Re: Hard starts
Originally Posted by Md 1987
Does the new battery need to be vented? The new one from Advanced auto parts is maint free. With no vent. Is that ok?
Anyone know?
There is a vent hole at each end at the top, the end closest to the firewall should have a plug in it. The hole towards the front should have the white catch basin from the OEM battery installed in it just in case some liquid comes out. My replacement batteries have only come with one plug, I have always saved and used the OEM catch basin.

These batteries breath vapour and gases when hot or when being charged, the vent holes relieve internal pressure. The battery will probably have six unscrew-able plugs in the top. After a while I think it is smart to see if the fluid is still up to the bottom of the fill holes. This especially true in hot climates as exposed plates are not a good thing to have.

Some batteries leak gaseous vapors around the posts and those red and green felt washers are good to have to neutralize the acid and prevent erosion and damage to the clamp and clamp connection. If you have ever had damage to the clamps then you will find that the vapor escaping around the posts is the culprit.

Prevention is cheaper than the cure.
 
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