XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

Rear Bumper Question

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  #1  
Old 04-18-2017, 09:00 PM
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Default Rear Bumper Question

I came across an ad for a 1992 XJS coupe near me. I was thinking of checking it out since it's stored near another place I was going to go this weekend, but after doing a VIN search, I found that it had been listed on a XJS fan site with more pictures.

XJS Data - SAJNW5848NC181946 - Jaguar XJS information, articles, photos and register





Those bumpers aren't supposed to look like that, right? He must have gotten rear ended or something?
 
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Old 04-18-2017, 09:03 PM
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Yeah, it's been knocked around a bit...but perhaps nothing significant. Those chrome bumper blades are a bit fragile; doesn't take too much to distort them


Cheers
DD
 
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Old 04-18-2017, 09:19 PM
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So a competent body shop can just bend them back into shape?
 
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Old 04-18-2017, 10:58 PM
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Worth a try; maybe get a decent improvement, at least? . But my personal experience is that once they're bent, they're bent forever.

Cheers
DD
 
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Old 04-19-2017, 06:23 AM
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Check underneath to see if any of the bolts holding it in place are missing nuts. If so, you might be able to hold it back down with a new nut and washer.
That rear bumper is almost large enough to sit on....
 
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Old 04-19-2017, 08:18 AM
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That's a 5MPH US crash bumper Someday.
The chrome may not be bent. It looks like the middle bit is pushed up a little.Looks like the antenna is missing.
 
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Old 04-19-2017, 08:23 AM
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Yes, I know it's a 5 mph bumper, I just hadn't realised they were still using them as late as this model. I thought that very silly idea was abandoned some time in the eighties.
 
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Old 04-19-2017, 08:41 AM
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Originally Posted by Some Day, Some Day
Yes, I know it's a 5 mph bumper, I just hadn't realised they were still using them as late as this model. I thought that very silly idea was abandoned some time in the eighties.
[Some sort of] bumper safety and crashworthiness standards are still very much in existence. It's just that car builders have figured out lighter, easier, more attractive executions....as Jaguar itself did on the later cars


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Old 04-19-2017, 08:53 AM
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Found this on Wikipedia: "NHTSA amended the bumper standard in May 1982, halving the front and rear crash test speeds for 1983 and newer car bumpers from 5 miles per hour (8 km/h) to 2.5 miles per hour (4 km/h), and the corner crash test speeds from 3 miles per hour (5 km/h) to 1.5 miles per hour (2 km/h)."
So those infamous Big Bumpers weren't really needed from the early '80s then.

And it seems they were never about safety anyway - "The United States has focused on protecting consumers from repair costs, using government legislation."
 
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Old 04-19-2017, 11:46 AM
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Bent bumper tech dates back even before the "5 mph" stuff.


In older days, bumper shops did a steady business straightening and rechroming bent units to service collision shops.


They are made of steel an as such are malleable. So, they can be bent back in to shape.


Simple or complex.


Crinkled inwards, the fix is to pull it back. High quality chrome will stay affixed. Poor chrome will flake The simple fix.


Pulled outwards, not so simple. The bend is stretched metal. Shrinking techniques can fix that. Alas, they involve heat. There goes the chrome.


Replace or straighten and black in lieu of chrome???


Carl
 
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Old 04-19-2017, 01:23 PM
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Isn't that the wrong bumper for the FL body with non full plastic bumpers!?

I thought the rear foglights were integrated into the rear light clusters on FL models!?
 
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Old 04-19-2017, 05:43 PM
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While my bumpers are the smaller version (not the US type), my car's the same year, and the rear fogs are in exactly the same place.
 
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Old 04-19-2017, 10:39 PM
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They are not the rear fogs in the bumper. They are reflectors only. The fogs are on the trunk light cluster.
 
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Old 04-20-2017, 02:53 PM
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From what I can see of the chrome it looks like it has been removed and replaced at some time. As a result the bolts that join the 3 pieces together(2 at each joint) have been overtightened. This is a common mistake and you see it a lot on cars that have been resprayed. The overtightening causes the joint to peak and look as above. Simple to fix if not a little time consuming.
 
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Old 04-20-2017, 02:54 PM
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White reflectors only appeared for 91/92 I believe
 
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Old 04-20-2017, 09:51 PM
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Don't think they were originally white...more like sun bleached now. I had to replace mine a few years ago with new ones.
 
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Old 04-20-2017, 10:31 PM
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It seems they were white for that model year:
"We once bought a whole car just for the '92-only white reflectors in the bumper," explains Mike Zavos, husband of '92 XJS owner Jennifer Hanson and the man charged with maintaining it. "The law changed for '93, and if we order that part number, we always end up with red ones.
https://www.hemmings.com/magazine/hs...S/3720471.html
 
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Old 04-21-2017, 06:05 AM
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