Oil Filler Cap
#1
Oil Filler Cap
Howdy Folks!!...
Checked my oil yesterday, and was about 3/4 quart low. I had about that amount left over from my last (shop) oil change, and figured I would top her off. Well... (just turned off the engine about 5 minutes before) I tried to twist off the cap and it wouldn't turn. It would tighten and click, but wouldn't turn counter-clockwise. I mean WTF!!..... Then this morning I waltzed out there and "Presto"... it turned right off. What in th' Wide World o' Sports is up with that?? Do I need to order another cap?? or is this some Jaguar quirk...
Drive On!!...
Fast Freddie
Checked my oil yesterday, and was about 3/4 quart low. I had about that amount left over from my last (shop) oil change, and figured I would top her off. Well... (just turned off the engine about 5 minutes before) I tried to twist off the cap and it wouldn't turn. It would tighten and click, but wouldn't turn counter-clockwise. I mean WTF!!..... Then this morning I waltzed out there and "Presto"... it turned right off. What in th' Wide World o' Sports is up with that?? Do I need to order another cap?? or is this some Jaguar quirk...
Drive On!!...
Fast Freddie
#2
Alas, more plastic failures. The ratchet assembly in the majority of oil caps today are plastic, just like the cap itself. Over time and heat cycles, the gearing inside breaks down and wears out, and oftentimes the caps just spin as you described. When yours cooled off, the ratchets apparently functioned properly again, but I wouldn't wait for the next failure. I'd go ahead and replace it. And not necessarily with an overpriced dealer cap. You can find generic caps at NAPA and other parts stores....
I've had to replace the oil caps in several different vehicles over the decades for reasons exactly like you described. My 1999 Dodge Ram pickup sports a generic cap, as did the majority of our Jeep Grand Cherokees if we kept them long enough. I remember having to pull several failed caps off with a pair of channel-lock pliers once I finally got them spinning properly again, always after the engine cooled off and the plastic parts had time enough to contract....
I've had to replace the oil caps in several different vehicles over the decades for reasons exactly like you described. My 1999 Dodge Ram pickup sports a generic cap, as did the majority of our Jeep Grand Cherokees if we kept them long enough. I remember having to pull several failed caps off with a pair of channel-lock pliers once I finally got them spinning properly again, always after the engine cooled off and the plastic parts had time enough to contract....
#3
#4
Join Date: Oct 2009
Location: Perth Ontario Canada
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#5
{I tried to twist off the cap and it wouldn't turn. It would tighten and click, but wouldn't turn counter-clockwise.}
As I had mentioned, it would not turn (or rotate) "lefty-loosy". You could rotate it clockwise, and it would turn and "click" each full rotation. I had her out for a little spin yesterday, and when I got home I tried to take the cap off...same thing. But this morning (engine cold) she turned right off. So go figure. At any rate, I just ordered a new one from LVJP. If nothing else, it will give peace of mind.
As an aside, I was perusing the manual to see if I needed do a little dance, or perhaps a Lodge Brother hand shake to get the cap off when I turned to page (I think) 196-197. On these pages it shows the various locations for filler caps. and lo and behold, it shows figure 2 as the oil filler cap, and 1 as the brake fluid cap. When in reality... they are in reverse order. I wonder how many newbies had to flush their brake fluid system after following the books instructions.
Drive On!!...
Fast Freddie
As I had mentioned, it would not turn (or rotate) "lefty-loosy". You could rotate it clockwise, and it would turn and "click" each full rotation. I had her out for a little spin yesterday, and when I got home I tried to take the cap off...same thing. But this morning (engine cold) she turned right off. So go figure. At any rate, I just ordered a new one from LVJP. If nothing else, it will give peace of mind.
As an aside, I was perusing the manual to see if I needed do a little dance, or perhaps a Lodge Brother hand shake to get the cap off when I turned to page (I think) 196-197. On these pages it shows the various locations for filler caps. and lo and behold, it shows figure 2 as the oil filler cap, and 1 as the brake fluid cap. When in reality... they are in reverse order. I wonder how many newbies had to flush their brake fluid system after following the books instructions.
Drive On!!...
Fast Freddie
#6
#7
Join Date: Oct 2009
Location: Perth Ontario Canada
Posts: 11,058
Received 2,266 Likes
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1,845 Posts
{I tried to twist off the cap and it wouldn't turn. It would tighten and click, but wouldn't turn counter-clockwise.}
As I had mentioned, it would not turn (or rotate) "lefty-loosy". You could rotate it clockwise, and it would turn and "click" each full rotation. I had her out for a little spin yesterday, and when I got home I tried to take the cap off...same thing. But this morning (engine cold) she turned right off. So go figure. At any rate, I just ordered a new one from LVJP. If nothing else, it will give peace of mind.
As I had mentioned, it would not turn (or rotate) "lefty-loosy". You could rotate it clockwise, and it would turn and "click" each full rotation. I had her out for a little spin yesterday, and when I got home I tried to take the cap off...same thing. But this morning (engine cold) she turned right off. So go figure. At any rate, I just ordered a new one from LVJP. If nothing else, it will give peace of mind.
Extra bowl of Wheaties in the morning?
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#8
#9
Well if the 710 filler cap won't come off, you are 705
#10
I had an issue today doing my first oil change for the STR with the oil cap being stuck. Just a tip, try tapping lightly on the oil cap with a small hammer or the end of a wrench while loosening the cap. I don't know why anyone would have put the cap on so tight. It had a jaguar filter on it so it was probably a dealership who did the last change. I do think the car went many miles without an oil change so the cap may have been tightened through heat cycles. Tapping on the cap worked for me.
#11
#12
Howdy Folks!!...
I received my new one today... I noticed that my new cap had what resembles an "O" Ring at the base. My old one was collapsed at that point. Who knows... I'm takin' her for a little spin tomorrow, I'll see if the cap comes off when the engine is up to temp.
Drive On!!...
Fast Freddie
I received my new one today... I noticed that my new cap had what resembles an "O" Ring at the base. My old one was collapsed at that point. Who knows... I'm takin' her for a little spin tomorrow, I'll see if the cap comes off when the engine is up to temp.
Drive On!!...
Fast Freddie
#13
But yes, I have had hard time opening mine, but it is just matter of twisting harder.
#15
#16
710 cap
Funny Story:The other day I was in the local auto part store. A lady comes in and asks for a seven ten cap. We all looked at each other and said, "What's a seven ten cap?" She said "You know, it's right on the engine. Mine got lost some how and I need a new one." "What kind of a car is it on," they asked? I'm thinking maybe an old Datsun Seven Ten, but no, she said its a Buick. "OK lady, how big is it?" She makes a circle with her hands about 3-1/2 inches in diameter. What does it do?," we asked. She said, "I don't know, but it's always been there." One of us gave her a note pad and asked her if she could draw a picture of it. So she makes a circle about 3-1/2 inches in diameter and in the center she writes 710. The guys behind the counter are looking at it upside down as she writes it...and they just fall down behind the counter laughing so hard in hysterics.
(Directions ... draw a circle, write 710 in the middle of it, and flip it upside-down)
Funny Story:The other day I was in the local auto part store. A lady comes in and asks for a seven ten cap. We all looked at each other and said, "What's a seven ten cap?" She said "You know, it's right on the engine. Mine got lost some how and I need a new one." "What kind of a car is it on," they asked? I'm thinking maybe an old Datsun Seven Ten, but no, she said its a Buick. "OK lady, how big is it?" She makes a circle with her hands about 3-1/2 inches in diameter. What does it do?," we asked. She said, "I don't know, but it's always been there." One of us gave her a note pad and asked her if she could draw a picture of it. So she makes a circle about 3-1/2 inches in diameter and in the center she writes 710. The guys behind the counter are looking at it upside down as she writes it...and they just fall down behind the counter laughing so hard in hysterics.
(Directions ... draw a circle, write 710 in the middle of it, and flip it upside-down)
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