rear bumper bolts

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timrosser
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Joined: Thu Oct 21, 2010 2:22 pm

rear bumper bolts

Post by timrosser » Tue Nov 27, 2018 10:38 am

Any tips on removing the 4 bolts that hold on the rear bumper if they are horrifically rusted on? Have tried (in order of violence) wd40, socket wrench, tap with hammer, socket with breaker bar... there isnt room for an angle grinder, would a dremel be upto the job of ether cutting as bolt or making enough of a ridge that a chisel and hammer could be used? Any ideas?

Best

Tim

(obv if any of you have a handy bumper and want to save me a job thats an option too ;-) )

jifflemon
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Re: rear bumper bolts

Post by jifflemon » Tue Nov 27, 2018 11:17 am

You had a blow torch on them yet?

I usually go cherry red, then spray with WD40 as it's dulled off (just be careful, it is flammable!)

The heat expands it, the fluid can then really penetrate

Alan 480
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Location: Aberdeen

Re: rear bumper bolts

Post by Alan 480 » Tue Nov 27, 2018 12:44 pm

timrosser wrote:
Tue Nov 27, 2018 10:38 am
chisel and hammer could be used? Any ideas?

yep, that's one way

I think I used 'brute force' as above, then LOTS of grease when re-attached it!!
Alan

480 ES 2litre x 2, C30 1.8ES, SS1

timrosser
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Joined: Thu Oct 21, 2010 2:22 pm

Re: rear bumper bolts

Post by timrosser » Tue Nov 27, 2018 9:48 pm

Ive not set fire to them yet, in fact as I'm not actively a Gordan Ramsey fan I dont own a blow torch! This isn't my 480 which has already had it bumper 'repaired' but a tragic donor car, the owner would run out an extension lead for me so I have electrics if needed. Has anyone ever cut a bolt with a dremel type tool? Is it possible?

Alan 480
480 Is my middle name
Posts: 1128
Joined: Sun Aug 28, 2011 9:03 am
Location: Aberdeen

Re: rear bumper bolts

Post by Alan 480 » Wed Nov 28, 2018 12:40 pm

timrosser wrote:
Tue Nov 27, 2018 9:48 pm
Ive not set fire to them yet, in fact as I'm not actively a Gordan Ramsey fan I dont own a blow torch! This isn't my 480 which has already had it bumper 'repaired' but a tragic donor car, the owner would run out an extension lead for me so I have electrics if needed. Has anyone ever cut a bolt with a dremel type tool? Is it possible?
very slow progress, id reckon

can you 'centre dab' it

drill it

then split nut?

nothing to lose, assumes you can get to a flat?
Alan

480 ES 2litre x 2, C30 1.8ES, SS1

jifflemon
480 Is my middle name
Posts: 1478
Joined: Sat Dec 17, 2016 11:03 am

Re: rear bumper bolts

Post by jifflemon » Fri Nov 30, 2018 4:28 pm

timrosser wrote:
Tue Nov 27, 2018 9:48 pm
Ive not set fire to them yet, in fact as I'm not actively a Gordan Ramsey fan I dont own a blow torch! This isn't my 480 which has already had it bumper 'repaired' but a tragic donor car, the owner would run out an extension lead for me so I have electrics if needed. Has anyone ever cut a bolt with a dremel type tool? Is it possible?
Got an electric heat gun then? You know, the sort of thing used for paint stripping?

You could always buy one of these, but I think it *may* be a tad overkill....

They're unbelievably useful though!

arthuy
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Re: rear bumper bolts

Post by arthuy » Fri Nov 30, 2018 7:06 pm


Alan 480
480 Is my middle name
Posts: 1128
Joined: Sun Aug 28, 2011 9:03 am
Location: Aberdeen

Re: rear bumper bolts

Post by Alan 480 » Sat Dec 01, 2018 4:16 pm

arthuy wrote:
Fri Nov 30, 2018 7:06 pm
I use bolt grips,

https://www.google.co.uk/search?q=bolt+ ... ie=plaji-i
worth a try, always been frightened of breaking 'stud extractors' in the bolt hole but in this case if these broke they'd just fall of so no damage done, except to the nuts, or possibly just shear off the stud :wink:

https://www.screwfix.com/p/erbauer-bolt ... -pcs/6083d
they seemed to geta decnet write up!
Alan

480 ES 2litre x 2, C30 1.8ES, SS1

jifflemon
480 Is my middle name
Posts: 1478
Joined: Sat Dec 17, 2016 11:03 am

Re: rear bumper bolts

Post by jifflemon » Sat Dec 01, 2018 5:05 pm

Have a set of irwin ones very similar.

As you've already mentioned though, the risk is that you fix one problem, only to give yourself another (nuts are off, but now you've got studs to replace!)

I'd seriously consider heat as the next move.

timrosser
Advanced 480 rookie
Posts: 543
Joined: Thu Oct 21, 2010 2:22 pm

Re: rear bumper bolts

Post by timrosser » Wed Dec 05, 2018 10:52 am

Have gone with some metric nut removers & a butane culinary flame thrower- I'll let you know how it works out! Thanks for all the tips
<3

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