Does someone make caps for kenworth tanks that don't leak when used in a vocational/offroad application?
Not that I have seen we just didn't fill it up.
About half of ours leak and half don't. Never bothered to figure out the difference.
Nope. getting them to seal is the luck of the draw.
I know what you mean. Mine only catch about a thread and a half, and I always have fuel residue around the cap collecting dust.
Old cap,new gasket,double gaskets,then to a new cap,tighten the **** out of it so you need a small block of wood to knock it off and KW fuel caps still may leak.At one point I even bought each truck an oil filter wrench of the right size for the drivers to tighten the caps. Since KW went to the threaded caps from the "yes I am that old" old style expandable rubber plug fuel caps that never leaked,the threaded caps have been a problem!
On ours the one on the pasenger side only goes on about a half a thread and doesn't leak but the driver side goes on almost two threads and leaks like a sieve. Don't understand why the went to that kind of cap. My two fords have those big ugly brass caps that don't leak a drop. Should of just kept it simple.
I took a piece of sponge and put it under the cap. Just remove the center screw for the breather and put a washer over the center of the spongs and screw it down. Now the fuel splashes against the sponge and soaks in intead of hitting the cap and seeping out a micro gap we can never seem to find
Alot of the leaks come from scratches in the filler neck from fuel nozzles.
Oh yea i forgot that brings back a memory of carefully filling down the top of the neck on the fuel tank of my T800. seemed to help slow the leak a bit.
I guess i'll try sponges. Thanks for all the replies guys. Bossman got a kick out of the filter wrench.
have you looked at any nicks on the neck?
The one i looked at today while fuel didn't have any on the top but on the inside. It's also non-venting.