Bonnet Removal

[Rowley-Birkin]

Hi Guys,

I am trying to get the bonnet off but the four cap screws on the hinges wont budge, any ideas?

I have drenched them in penetrating oil over night but they still wont undo.

Jase.

[Discopotatoes]

Undo the two bolts that go through the rose joints

[s p a c e m a n]

I remember mine taking a lot of force the first time that I removed it, had to use a bit on a socket as an allen key was just bending. They have been on there 20 odd years if they've never been removed before.

[TJC46]

Discopotatoes said:

Undo the two bolts that go through the rose joints

THIS.....

[latham91]

Just looked at mine - I don't have bolts through the rose joints. They appear to be threaded bars bonded into the bonnet secured with NUTS. If I undid the nuts it doesn't appear that there would be enough lateral play to clear the ends of the threaded bars through the rose joints and remove the bonnet. Looking at mine it appears I would have to remove the cap head screws as the OP was trying to do? Reading previous threads it appears the screws are easy to damage and then a PITA to repair....

[FoxTVR430]

I agree with latham91. There is not enough lateral movement to remove the bonnet.
I like to have pictures to simplify things (simple person and all that). So here's mine, a 1993 version before removing the bonnet (of course )



Unless you can remove the screw thread somehow, I don't know how you would do it?

[s p a c e m a n]

FoxTVR430 said:

Unless you can remove the screw thread somehow, I don't know how you would do it?

I normally undo one of the nuts on the threaded bar that goes into the bonnet and then undo the two bolts holding the bracket on the opposite side. That way I can do it all on my own and you only have to line up one bracket to adjust the bonnet to fit when you put it back on. My one is easy to fit exactly where it it was removed from because of the clean patch that's revealed when I remove the bracket from the bodywork

[phazed]

I am fitting these stainless QD hinges.

They come with stainless cap head bolts and washers.

The more observant of you will spot that one hinge is wrong but was replaced by the supplier.

[FoxTVR430]

s p a c e m a n said:

FoxTVR430 said:

Unless you can remove the screw thread somehow, I don't know how you would do it?

I normally undo one of the nuts on the threaded bar that goes into the bonnet and then undo the two bolts holding the bracket on the opposite side. That way I can do it all on my own and you only have to line up one bracket to adjust the bonnet to fit when you put it back on. My one is easy to fit exactly where it it was removed from because of the clean patch that's revealed when I remove the bracket from the bodywork

That's a clever move "s p a c e m a n". I hadn't thought of that.

[Rowley-Birkin]

Spacemans technique works! its what I ended up doing on Monday :-)

Thanks for the replies everyone.

Jase.

[phazed]

I meant to include this.

[WokingWedger]

They are a good idea Peter, welding could be better though !

[bobfather]

phazed said:

I meant to include this.

Looks like the new ones aren't a pair, they are the same hand

[TwinKam]

WokingWedger said:

They are a good idea Peter, welding could be better though !

Yeah that, especially considering the price!...
You can almost forgive the atrocious welding on these seeing as they less than 20% of the cost of Peter's.
I said almost.

[s p a c e m a n]

I bought a pair from rtr a few months ago and the quality was much better than they've shown in that ebay pic, don't know why they've chosen to use that one. Think that they were powder coated white as well not bare metal....

Just realised that they're cerb ones not chimaera so they've welded bolts to them, chim ones came a lot tidier than they look.

Edited by s p a c e m a n on Thursday 9th March 10:25

[TwinKam]

My thoughts exactly, wouldn't you hand pick your very best for the photo?

[Steve_D]

The ones Phazed has are.....
A. Stainless so no finish required.
B. They can be dismantled (bonnet removed) without altering the bonnet alignment.

Still piss poor welding though.

Steve

[keith-vznby]

Hi,Can I ask where you got the hinges as I would like to change my grotty ones