When warm. Gently. Nothing sharp of course. A good washing with water is good from time to time.

 

Ok thanks ‼
Do you think tweezers would work OK

 

A couple of my radiator fans are bent should I try to bend them back or leave them that way

Depending upon the size and amount of damage a large amount of bent fins could affect cooling efficiency. There are fin tools to straighten and repair fins in most radiators, coolers, and air conditioning condensers. Here is one example.

Amazon.com: Allstar Performance ALL10680 Radiator Fin Comb Kit , Black : Automotive

Buy Allstar Performance ALL10680 Radiator Fin Comb Kit , Black: Radiators - Amazon.com ✓ FREE DELIVERY possible on eligible purchases

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OK thanks so much

 

Unless you are using the tool, it's real hard to get them good again. You end up bending the surround ones in the process of straightening the one, so it becomes a waste of time.

 

Yes sir you’re right that is definitely what I ended up doing to a couple of them no holes or major damage but no damage at all would be ideal! I will definitely get a tool!