Fuel tank cap hard to open for refuelling

[K man]

Seriously, that is a problem. I mean I have had a lot of farm tractors ( IH, Massey Fergusons, Fords ) over the year and never had issues with gas caps. Why only on these or other Korean makes

 

[oosik]

Same problem with my JD G100 riding mower. It sure doesn't help that the cap is in a recess, either. Rag on cap and two hands has alway done it, though.

 

[Trails End]

Yep!! I have the same problem with my Bobcat CT335, with the same black threaded cap.
It's recessed just enough to make it difficult to get a good grasp on it with my hand.

 

[bumperm]

Try wiping some silicone grease, or silicone spray if you don't have grease, on the rubber gasket of the cap, and on the threads if they are tight. Silicone is compatible with most all plastic and rubber types.

bumper

 

[Msamt]

Mines tighter than (I'll behave) too...

 

[ritcheyvs]

My chain saw developed a similar problem that (according to some) was caused by the the cap swelling from additives (allegedly alcohol) in the fuel. I bought a new gas cap (which works fine) that has redesigned threads.

My 2006 DK gas cap has no problems at all.

Perhaps the plastic formulation during a certain period or for a certain lot swells when exposed to fuel/vapor. It might help if the few folks that have this tight cap problem include the tractor build date (as indicated by the first digit of the serial number) in their posts. It would also be informative to know if anyone tried to replace the tight cap with a new one (or swapped with a neighbor whose cap is fine) to see if this is a cap or tank problem. In the mean time, those of us with an EZ off cap can't be much help.

 

[k0ua]

This has really gotten me curious, I have never had a bit of trouble with the recessed black plastic cap on my DK35se. Now I don't tighten the chit out of it either, just gently secure it. But I swear I have never had any trouble getting it off. So many of you have posted, there has got to be something to this. Perhaps some of the plastic formulations, or something? :confused3:

 

[Gary Fowler]

Perhaps they are tightening the chit out of it like I do my Kubota RTV cap to keep it from leaking when I have it full. If I gently tighten it, fuel will seep out especially on a hill and all my property is a hill, either up or down. I put it on with one hand fairly tight but it is nearly impossible to remove it without some mechanical assistance or a double donut cut off the rear strain.

 

[BethelHntr]

Mine is the same, I usually turn it until it ratchets one time and stop, It's not easy to remove at all.

 

[KiotiKowboy]

Same problem on my DK50 with the fuel cap. By far, my worst problem is with the oil and gas caps on my Husqvarna chainsaw. Without pliers those puppies are not going to budge!