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Mitsubishi Delica Owners Club UK™ Mitsubishi Delica L300, L400 and D:5 Owners Club
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andyman
Joined: 08 Dec 2012 Posts: 5601 Location: Penrith
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Posted: Fri Jan 20, 2017 19:50 Post subject: chassis steel thickness |
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Just been cleaning dripping oil off the alternator wiring and connector ,(rear half moon seal needs sorting), and noticed that the chassis sections are made from 2mm thick steel. Is the L400 chassis made from the same stuff? _________________ Andy C L300 Super Exceed - over 100 smiles per gallon! |
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Posted: Fri Jan 20, 2017 19:50 Post subject: Google Ads keep this community free to join! |
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Andy W
Joined: 03 May 2015 Posts: 559 Location: Brighton
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Posted: Tue Jan 24, 2017 14:41 Post subject: |
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The rear chassis on my van when I had to replace it was 1.5mm, don't know if the front is a different size. _________________ 1994 LWB Super Exceed L400, Black & Silver |
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YOZA
Joined: 07 Mar 2005 Posts: 2423 Location: The centre of the universe
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Posted: Sun Feb 12, 2017 13:42 Post subject: |
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You will find it is different thicknesses all over, when the chassis parts are fed into a press they are all the same gauge when flat, but when the press forms the section in the die the thickness in parts can decrease by up to 70%.
Imagine placing a sheet of Plasticine over a wooden block then press down with a die that is the female of the block, you will find thinning were the 90deg forms are along the panel.
When running a large batch of chassis parts/sections/channels you would often be alerted by the operator of cracks and splits, this was usually a lubrication or setting issue, but it was always 100% on the stretched formed line as it thinned out, you will find that these thinned areas are the first areas to rot and break through.
Chassis parts are usually reinforced with filler plates and channels at stressed points, these are then spot welded inside the channel, a good example is the jacking points on a car have 3mm thick jacking reinf brackets welded to the inner sills. _________________ Artificial intelligence is no match for natural stupidity.... |
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andyman
Joined: 08 Dec 2012 Posts: 5601 Location: Penrith
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Posted: Sun Feb 12, 2017 14:10 Post subject: |
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Ironically, it appears to be these reinforced sections, which are stronger when new, that become a moisture trap and rust incubator on older vehicles. Having crawled all over the underside of an L400 last week, the relative complexity of construction and forming of the box sections compared to the L300 corroborates YOZA's comments about the effects of stress and stretch in the press- forming process, and the number and positioning of welded reinforcements. _________________ Andy C L300 Super Exceed - over 100 smiles per gallon! |
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