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Kenworth Fuel Caps

hvy 1ton

hvy 1ton

Senior Member
Joined
Jul 24, 2006
Messages
1,946
Location
Lawrence, KS
Does someone make caps for kenworth tanks that don't leak when used in a vocational/offroad application?
 
Dozerboy

Dozerboy

Senior Member
Joined
Jan 18, 2006
Messages
2,232
Location
TX
Occupation
Operator
Not that I have seen we just didn't fill it up.
 
JDOFMEMI

JDOFMEMI

Senior Member
Joined
Jan 3, 2007
Messages
3,074
Location
SoCal
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.
 
T

TCS

Well-Known Member
Joined
Feb 16, 2012
Messages
76
Location
ct
Old cap,new gasket,double gaskets,then to a new cap,tighten the p!ss 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!
 
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B

buckfever

Senior Member
Joined
Aug 12, 2010
Messages
813
Location
southwest pa
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.
 
S

Soodude

Well-Known Member
Joined
Sep 21, 2011
Messages
140
Location
Sault Ste. Marie, MI
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
 
D

Dualie

Senior Member
Joined
Feb 23, 2007
Messages
1,371
Location
Nor Cal
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.
 
hvy 1ton

hvy 1ton

Senior Member
Joined
Jul 24, 2006
Messages
1,946
Location
Lawrence, KS
I guess i'll try sponges. Thanks for all the replies guys. Bossman got a kick out of the filter wrench.
 
hvy 1ton

hvy 1ton

Senior Member
Joined
Jul 24, 2006
Messages
1,946
Location
Lawrence, KS
The one i looked at today while fuel didn't have any on the top but on the inside. It's also non-venting.
 
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