Bonnet Hinge Problem

[matty205xs 1 1 Cars]

hi, iv got a problem with both my bonnet hinges as both rear bolts of the hinge have sheared off, yesterday I started drilling out the drivers side bolt and that's fine all that need doing now is to rethread the hole, but the passenger side bolt is difficult to get too as theres a black box with a tube attached to it in the way so I tried to unscrew the bolts holding it on and one of them snapped too so I decided to leave the other one as I have my suspicions about that one shearing off aswell. can anyone tell me what the black box is for and if u really need it and if so how would I renew the bolts for it, would it be a case of doing what im having to do with the hinges bolts and drill them out and rethread them and put in new bolts, any suggestions would be great.

thanks matt.

 

[Slo 283 1 Cars]

Might be better to just weld the bonnet hinges in place? Got a pic of the box with a pipe?

[welshpug 1,657]

just remove the box for access, its the vacuum accumulator for the sunroof.

 

you can't "weld the hinges in place"

[Slo 283 1 Cars]

whats the difference bolted or welded? you can disconnect the bonnet from the hinge if you needed to remove it.

[jackherer 543]

The hinges pivot on the bolts.

[matty205xs 1 1 Cars]

thanks for the quick replies. if I remove the sunroof accumulator how would I replace the screws holding it on? would I have to do the same as I am doing for the hinges (drilling them out and rethreading them)

[jackherer 543]

Give the exposed thread a clean up with a small wire brush then use some decent penetrating fluid (not WD40) on it and it might undo without shearing.

[matty205xs 1 1 Cars]

ok will give it ago, what stuff would u recommend.

[jackherer 543]

Plus Gas is OK.

[matty205xs 1 1 Cars]

ok thanks, wat would be the plan of action if it snaps?

[harryskid 193]

ok thanks, wat would be the plan of action if it snaps?

Got a big hammer ?

[jackherer 543]

Ideally you want to grind off anything not flush with the surface, drill the rest out then weld a new captive bolt in but the vacuum accumulator is very light and has no moving parts so I'm sure you could improvise something to hold it in place.

[matty205xs 1 1 Cars]

right ok thanks will give it ago, should be easy enough to drill the screw out if needed to.

[Slo 283 1 Cars]

The hinges pivot on the bolts.

 

So they do, I also have one sheared off on my cti I call the turd, just had a good look at how they work what a nightmare of a design. I take it the original bolts have a shank then for the hinge mount to swivel on? Can you still get them?

[welshpug 1,657]

Not just a shank, a top hat bush.

[Slo 283 1 Cars]

oh well at least the parts are cheap, and will probably have 5 extra sets by the time i get some from pug

[matty205xs 1 1 Cars]

also iv been meaning to ask, what can I paint the inside of my bonnet with, is hammerite or undrseal ok or is there better and more suitable stuff.

[pug_ham 244 3 Cars]

ok thanks, wat would be the plan of action if it snaps?

Sheared Bolt On Bonnet Hinge - How To

 

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