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Old 26-06-2009, 02:19 PM
White230CE White230CE is offline
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Default Number plate nuts

Hi,

Took off the rear number plate of my 230CE because I saw rust peeping through from the panel underneath. It turned out that the 4 holes for the number plate screws had been bodged with rawl plugs.

Luckily, the rust hadn't taken much hold yet, so I was able to sand, clean and repaint, so the 4 holes are now back to how they should be.

Each hole is a hex shape, and the new nuts from Merc are like a mushroom, having a hex shaped stalk topped by a wider circular cap. The number-plate screws screw into the top of the mushroom.

Obviously, you push the stalk into the hole until the bottom of the cap rests against the panel. However, what is used to keep the mushroom 'planted' in place? Do I glue it, if so with what? Without any fixing, once I screw the number plate in, it could just pull out with the mushrooms attached! Tried pulling on the mushrooms fixed to my donor car, and they won't budge, so would like to achieve the same on the cannibal.

Thanks
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Old 26-06-2009, 02:28 PM
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i believe they re what is known as "rivet nuts" they are pushed into the holes and then a tool similar to a rivet gun is attached via the threads and it basically keeps the threads good whilst splaying the shank a bit, similar to a pop rivet. i have seen these applied using a long bolt and tightening a nut up to squeeze the threaded insert but its better done with the correct tool
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Old 26-06-2009, 02:49 PM
White230CE White230CE is offline
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Thanks Pete. I'll look into where or how I can get hold of the tool.
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Old 26-06-2009, 02:50 PM
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The only fix possible now will be to use nuts and bolts with spacers about 4mm long, the other fix is to use the MB type number plate holders that you cold screw straight on and the number plate just clips in
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Old 26-06-2009, 05:23 PM
White230CE White230CE is offline
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Welcome back Malcolm!

I'm really confused now.

I guess you're saying that the nuts I've just bought can't be retro-fitted? Is that because I can't get at the rear of the panel they fit into, to do whatever needs to be done?

If I can't use those nuts, how exactly do I use nuts, bolts and 4mm spacers? I'm trying to visualise but can't get it.

Many thanks

Ray
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Old 26-06-2009, 05:58 PM
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It could be me muddled up, if they are plastic, once in the hole and you do up the screw they could expand and get tight in the hole.

128 in the link and the spacer 149

http://www.detali.ru/cat/oem_mb2.asp...SGR=030&SGN=02
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Old 26-06-2009, 08:58 PM
White230CE White230CE is offline
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Malcolm, you are not muddled up at all. You're spot on!

The diagram shows exactly what I've been supplied with: Nos 128, 149 and 146. But if I fit them in the sequence shown in the diagram, the shape of 149 doesn't seem to match the top of 128 or the bottom of 149. If the number plate goes between 149 and 146, still can't see how that tightens 128 in its hole.

Pic attached.

Thanks
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Old 26-06-2009, 09:07 PM
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I am guessing now,,could the 128 be inserted from the inside of the boot and 149 goes over the hexagon sleeve part of 128 once it been pushed through the hole
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Old 26-06-2009, 09:08 PM
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thats where the rivet gun type thing comes in IIRC! i was on the frost website getting prices for por15 earlier. they had the tool required but i didnt check the price im afraid
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previous: W203 C220 CDi manual (sold and missed) W210 E300 TURBODIESEL (gone), W202 C250 TURBODIESEL manual (R.I.P (fire)), W202 C220 DIESEL manual (my 1st merc. R.I.P.),
mk3 Fiesta, mk3,4&7 Escorts, mk2 Orions, Sierra Sapphire mk2, mk3 Granada ghia, Transit, Metro, Citroen zx, mk1 Cortina, Puma, Focus, Mondeos, among others (mostly Ford)........
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Old 26-06-2009, 09:14 PM
White230CE White230CE is offline
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It sounds like from what you both (Malcolm and Pete) are saying, that I need somehow to get at the panel from behind. Trouble is, there is an inner skin which I haven't yet worked out how to remove, and on a quick inspection, I thought it might be riveted rather than bolted/screwed. I'll study Malcolm's diagram again, but in the meantime, any removal advice would be appreciated.

Thanks
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