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Aug 24th, 2023
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Joined: Jun 2019
Posts: 1,211 Likes: 21
Has a lot to Say!
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Has a lot to Say!
Joined: Jun 2019
Posts: 1,211 Likes: 21 |
Clever and tidy upgrade. 
Gordon Duguid
2014 Duratec engine plus 4, Montreal blue.
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Joined: Nov 2011
Posts: 7,058 Likes: 20
Talk Morgan Guru
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Talk Morgan Guru
Joined: Nov 2011
Posts: 7,058 Likes: 20 |
This little mod could save some tears…. I never liked the original rear bumper mounting bolts as it always looked like it was only a matter of time before disaster struck. The bumper is fixed to spring brackets and the ends of the fixing bolts are less than 10mm from the rear panel. It only needs a very small force on the bumper for the bolts to contact the panel. Sure enough disaster struck when ‘white van man’ nudged me at the traffic lights a few weeks back. Only a small amount of damage but a costly rear panel respray curtsey of his insurers. I could have done the same just reversing into the bucket in the garage. ![[Linked Image]](https://dl.dropboxusercontent.com/s/6utqmhvmhkbcs69/bump1.jpg) ![[Linked Image]](https://dl.dropboxusercontent.com/s/wuu742820v1i8st/bump2.jpg) So now that the car has been repaired, this evening while the rest of the world was glude to some football match I decided to swap the bolts for some stainless csk setscrews. ![[Linked Image]](https://dl.dropboxusercontent.com/s/npvr9238gv7e9yj/bump4.jpg) Before and after ![[Linked Image]](https://dl.dropboxusercontent.com/s/wbz0s23hy1816lt/bump3.jpg) Maybe it’s a bit less vulnerable now……. Well thought out Rog
A Morgan Identified Fastidious Owner...
2011 4/4 Bespoke, 1981 Delorean, Auburn Boat Tail
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Joined: Aug 2015
Posts: 44
Just Getting Started
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Just Getting Started
Joined: Aug 2015
Posts: 44 |
Hey Rog,
The area is sensitive. I got myself that typical dent a few years ago. Bumped reversely yet slowly into my neighbor's Polo. (Not a scratch in the Polo). It's still there ... as a reminder.
I like your design although it doesn't solve the issue: Those brackets are weak, prone to bend under the slightest pressure and cause expensive damage to the bodywork. If they'd only be tougher, maybe rectangular/tubular....
Cheers!
4/4 1996 1.8 ZETEC Silvertop It has Swivel Pivots and an amazing Umbrella Holder!
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Joined: Jul 2007
Posts: 28,415 Likes: 177
Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
Joined: Jul 2007
Posts: 28,415 Likes: 177 |
Which would tend to push any deformation into the rear chassis.
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly
'09 Gen2 MINI Cooper ragtop
'90 LR 90 SW
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Joined: Sep 2009
Posts: 7,342 Likes: 91
Talk Morgan Guru
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Talk Morgan Guru
Joined: Sep 2009
Posts: 7,342 Likes: 91 |
I find Rog's measure very good because it gives more space for deformation and also because the impact is not concentrated on one ugly point of the screw thread but it is distributed over the surface.
And on the other hand, I totally agree with Graham. Nothing is worse than a bending of the chassis. I had an old Mercedes with a trailer hitch many years ago. Another car could not brake in time and my car was totaled because the whole rear part from the rear window on bent down. The trailer hitch was I think somewhere attached to the axle or the side members.
'14 4/4 graphite grey
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Joined: May 2012
Posts: 1,639 Likes: 20
Talk Morgan Enthusiast
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OP
Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,639 Likes: 20 |
Yes I think its better this way albeit not perfect. I do like the bumpers though as they do offer some level of protection. The stainless material is forgiving. Light surface marks, scuffs and grazing can be removed and nicely repolished.
Roger
2011 Plus 4
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Joined: Jan 2013
Posts: 1,148 Likes: 18
Has a lot to Say!
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Has a lot to Say!
Joined: Jan 2013
Posts: 1,148 Likes: 18 |
The bolt in our year 2000 plus 4 is a 3/4 by 2.75 inch unf hex bolt. Unfortunately the bolt and bumper brackets were painted at factory and after 20 years have rust creep..... In the good old days we had John Worrell of Heart of England Morgan who supplied the spacers and bumper brackets in chrome or stainless.... Anyone know of a new supply? see pic ...clearly shows rust will repaint for now and fit stainless 3/8 bsf bolts from spalding fastners my go to for stainless bsf / unc / unf etc ![[Linked Image]](https://live.staticflickr.com/65535/51295499815_cf64ce2f1c_4k.jpg) DSC_1068 by Robert & Ali Davies, on Flickr
Morgans 1934 MX, 1947 Series 1, 1956 +4 TR4, 2000 +4 T16
Triumph Herald 1969 13/60
Morris 1970
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Joined: Nov 2018
Posts: 6,056 Likes: 160
Talk Morgan Sage
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Talk Morgan Sage
Joined: Nov 2018
Posts: 6,056 Likes: 160 |
Melvyn do the brackets in stainless (at a price)
1972 4/4 4 seater, 1981 MGB GT
1984 Harley Davidson Electra Glide, 1990 Kawasaki ZX10
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Joined: Jan 2013
Posts: 1,148 Likes: 18
Has a lot to Say!
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Has a lot to Say!
Joined: Jan 2013
Posts: 1,148 Likes: 18 |
Give me John Worrell any day!
Morgans 1934 MX, 1947 Series 1, 1956 +4 TR4, 2000 +4 T16
Triumph Herald 1969 13/60
Morris 1970
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Joined: Apr 2010
Posts: 152
L - Learner Plates On
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L - Learner Plates On
Joined: Apr 2010
Posts: 152 |
Rog, perfect! What about to temper and forge the bracket to make it flexible, similar to the rear spring leaves? Then, it would not bend and keep its shape after a collision? I don't know, would it be possible to temper and forge the original, or necessary to use another kind of steel? Or maybe to form it from an old leave? Anyway, many thanks for the excellent idea, I am going to replace the bolts on my Mog as well. What a lovely idea but alas I’m not sure. The bumper bracket is already a spring and by adding a valve spring between the blade and bracket would mean the two springs working in series. I think both would see the same force so the main spring/bracket would still deflect the same  But a thicker section bracket might help  ![[Linked Image]](https://dl.dropboxusercontent.com/s/g27hhelq99eqhcn/bump-brkt.jpg)
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