Fighting a battle with a couple of small holes in the collector box of my headers, the last time I did them was last year with rustoleum high temp after a member on here had good results with, I did prep the area very well and filled with gun gum but the rust has come back along with pushing off the filler.Can anyone recommend a rust killer- are they any good or not.
“Max temperature 315°C (<100 continuous)” according to the manufacturers.The pipes there will be over 100ºC (though under 350º).. I wonder how long qualifies as continuous?Still, it can be done in-situ so if it does fail at least it won’t be effort wasted.
Yes I am a granma sucking eggs but I am still open to focer wisdom, especially if I have always sucked eggs the same way. That's right no rain for me but I might ride through wet damp patches and I think it also rots from the inside.Chem metal then, sounds like I will give that a try instead of gun gumHere is my holes last year after I had cleaned it all off with a wire wheel on a drill being on a curve how easy it it to weld a piece over it and how much would that cost over a new exhaustJob when done last year
Don't use rust inhibiter it will react with the paint, I know as that is what happened to mine using the Granville engine black paint.
If the down pipes are still good and strong I would look at cutting out the balance tubes and welding in a new bit of tube.
For exhaust manifold paint have a look at Simoniz Sperex VHT ( very high temperature). Have used this on car manifolds very successfully.
That's the one.