How Tight Should a Radiator Cap Be?

car engine image by itsallgood from <a href='http://www.fotolia.com'>Fotolia.com</a>

Radiator caps should be sealed strong and tight before operating. Radiators exert a lot of pressure when the fluid is heated. According to CarsDirect, failing to properly secure a radiator cap with ample physical pressure "can cause the vehicle to overheat" or even leak.

Tighten Strong for Safety

Classic Car Engine Refurbished image by Janet Wall from <a href='http://www.fotolia.com'>Fotolia.com</a>

Radiator caps should be sealed strong and tight before operating. Radiators exert a lot of pressure when the fluid is heated. According to CarsDirect, failing to properly secure a radiator cap with ample physical pressure "can cause the vehicle to overheat" or even leak.

Be Sure All Caps Fit

wheels, radiator,& lights of a classical car image by L. Shat from <a href='http://www.fotolia.com'>Fotolia.com</a>

Radiator caps are designed to withstand different amounts of pressure--be sure yours is appropriate. Correct radiator cap pressure helps to maintain a balance of heat. If old caps are damaged they should be replaced. New radiator caps, states ArrowHeadRadiator, "must have the same pressure rating as the original."

Bottom Line

stack of cash image by jimcox40 from <a href='http://www.fotolia.com'>Fotolia.com</a>

A radiator cap should be tightened with a maximum amount of physical pressure. If a radiator cap is not on strong enough it can cause fluid to leak. In order to avoid danger, be sure caps are pressure-rated specifically for your radiator. Check your owner's manual for details on pressure cap ratings.

Most recent

×