Rusted surpentine pulleys

[Scott Danforth]

rust converters do not work

 

[Rick Stephens]

rust converters do not work

I would disagree. Have 20 years of refinishing equipment and converting the rust is an essential part of keeping it from actively rusting under the paint.

 

[Scott Danforth]

then you have had better luck than I have with rust conversion.

 

[chartersj]

Still trying to figure out exactly what I'm going to do. Still winter here in Canada but weather is getting better all the time now... I was wondering if anyone has tried the 2k spray paint that Eastwood or spray max offer? It's primer or paint that you activate the catalyst for a one time use. Seems like it may be good option for me.

 

[Bondo]

Ayuh,..... I've never heard of that system,......

My preferred system is Rustoleum, primer, 'n industrial enamel,......

 

[chartersj]

Just got the boat out of storage and figured I would give an update after having the pulleys painted for a year. On the inside( belt does not run on), I rust converted and used single stage rust coat paint. On the outside and rest of the pulleys I used a rust converter, a 2 part epoxy primer, and then a 2 part top coat. I used spraymax brand that is a one time use with catalyst activator in a spray can.

 

[tank1949]

After having my first motor with surpentine pulleys for a couple years now I'm getting tired of them always needing attention. Both years I have had to wire brush/sand/file the groves down and re paint them. The paint wears off quick and then the rust starts. The belt dust makes a big mess in the engine compartent and also cannot be good for the motor when it gets into the throttle body. I boat in salt so that obviously accelerates the rust, but it makes me miss the v belt system on my previous motors. That being said I'm looking into replacing the main pulleys this year. I noticed an aluminum raw water pump pulley on eBay, I know aluminum will oxidize as metal rusts but wondering if that would be better and one less pulley to work on as much if I did replace that one with aluminum?

Try Ospho to treat iron/steel. Amazing results!