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This is a read-only archive of the old Madabout Kitcars forum. New posts and replies are no longer possible, but every thread is still here to browse and read.

Best Bonnet Stay For Z3 Cars

18 Jan 2020, 5:19pm
Has anyone come up with a good solution for their bonnet stay / strut etc ?

The front end on the Z3 based cars is too heavy for the standard gas struts. I would prefer to fit an old style bonnet stay.

What works best ??
18 Jan 2020, 6:29pm
I’m interested in this item too. I bought some extra strong struts as recommended on here but they are about an inch too long. I have to find a way of compressing the struts prior to installing in the car. Using original with a strut may be easier
18 Jan 2020, 8:45pm
I used heavier duty gas struts on my Kobra from SGS. No need for an additional bonnet stay as they go up nicely. The ones I bought are strong enough for a 250 bonnet I believe. I can look out the spec if needed.

Dave
18 Jan 2020, 9:16pm
Hughandjen wrote:
I’m interested in this item too. I bought some extra strong struts as recommended on here but they are about an inch too long. I have to find a way of compressing the struts prior to installing in the car. Using original with a strut may be easier


I’ve googled it and a ratchet strap looks like a useful solution
18 Jan 2020, 9:21pm
DaveP wrote:
I used heavier duty gas struts on my Kobra from SGS. No need for an additional bonnet stay as they go up nicely. The ones I bought are strong enough for a 250 bonnet I believe. I can look out the spec if needed.

Dave


please do, and post.

Thanks Dave
18 Jan 2020, 10:32pm
molleur wrote:
please do, and post.

Thanks Dave


Will do Jack (it is Jack isn’t it?). Was a little while ago so will dig.

Dave
18 Jan 2020, 11:13pm
DaveP wrote:
Will do Jack (it is Jack isn’t it?). Was a little while ago so will dig.

Dave


Yep. Thank you Dave. No big hurry.
19 Jan 2020, 9:35am
These detail from the struts I fitted to the Z300S. It has the longest bonnet of all so if these hold my bonnet up they should work fine for anything else

SGS Engineering
£43.94 2 x GSV10-300 Adjustable force gas strut
£0.00 2 x B3 10mm angled plastic ball socket
£0.00 2 x e10 8mm hole 5mm thick M8 1.25 thread eyelet
£5.30 1 x carriage
19 Jan 2020, 9:45am
WorldClassAccident wrote:
These detail from the struts I fitted to the Z300S. It has the longest bonnet of all so if these hold my bonnet up they should work fine for anything else

SGS Engineering
£43.94 2 x GSV10-300 Adjustable force gas strut
£0.00 2 x B3 10mm angled plastic ball socket
£0.00 2 x e10 8mm hole 5mm thick M8 1.25 thread eyelet
£5.30 1 x carriage


Did you have to cut away any of the mounting bracket to fit these. I say this as I ordered some from SGS. They sent GSV10-150 struts and they are longer and thicker than the BMW ones. I sent them back to SGS saying they didn’t fit and they said they don’t have a set suitable for a Z3 bonnet bracket and returned them!! I am going to have to try and get them to fit!!
19 Jan 2020, 10:38am
For those too lazy to go back and look

http://www.madabout-kitcars.com/forum/showthread.php?t=5907

The replacement struts should be the same length as the originals although they are a little thicker. If they are longer they are wrong which I'm afraid doesn't seem unusual for SGS.
I ordered a replacement boot strut for the Daytona and gave them the measurements but the replacement was a foot longer, they did, however, supply a replacement with no arguing.
19 Jan 2020, 11:01am
Thanks for posting that link Steve. It takes a bit of searching trying to find an old thread, easier to ask ! I didn't know about LandRover springs, that answers another question, thanks !
19 Jan 2020, 9:46pm
I think mine fitted but I normally have a hammer or axe nearby so there may have been some adjustment needed.
20 Jan 2020, 8:06am
I bought the same struts as WCA and they fitted straight on the kobra with no issues.

I cannot find the bl**dy SGS invoice though. I did get the chance to clear my email of all their fricken marketing mails which was a bonus.

Dave
20 Jan 2020, 2:55pm
DaveP wrote:
I bought the same struts as WCA and they fitted straight on the kobra with no issues.

I cannot find the bl**dy SGS invoice though. I did get the chance to clear my email of all their fricken marketing mails which was a bonus.

Dave


Got the info, thanks Dave!
21 Jan 2020, 12:21am
Struts

[SIZE="3"]On the GTB we fitted stronger struts of the GSV - 150 / 10mm piston size.

They need quite a lot of fettling to shorten and to fit; little space & no pleasure.

SGS can be unfriendly to deal with, but the market place is limited.

The GTB bonnet is long and includes the headlights. It is not kept up by these struts, but they do make it easier to raise.

To prop the bonnet up, cut a fifth or so lengthwise out of an aluminium tube to fit over the piston, thus holding the bonnet at your chosen height. This is Andy's discrete idea, which works well.

Can be lined with a little bicycle inner tube and file a groove in the bottom end to rest on the ball joint shank.[/SIZE]

Attachment could not be found in the archived database.
21 Jan 2020, 4:51pm
I’m wondering if I should send mine back again and ask for GSV10 300 as they sent me GSV 10 150. Do you know if the 300 has a narrower piston size as mine are too wide
Thanks
Hugh
21 Jan 2020, 6:08pm
Strut sizes

[SIZE="3"]Hugh

Take a close look at the SGS website which gives some struts dimensions. The '150' means a stroke length of 150mm.

SGS do not give the dimensions for the standard Z3 replacement. The standard unit is 345mm from middle of eye to middle of socket, with a 150mm stroke and a cylinder diameter of 18mm; piston 8mm.

GSV10-300 will have a very long stroke of 300mm and the unit is 650mm . . . plus the eyes / sockets. The cylinder is 22mm. So it is far too long for a Z3 bonnet hinge fitment.

A GS 14 150 has a 27mm body

I fitted the 10 - 150 units and they needed quite some adjusting to fit ok on the GTB, where space seemed tight. The cylinder body is 22mm, piston 10mm, length is 350 PLUS eyes / sockets - so significantly longer than standard. I shortened the piston and cut a new thread.[/SIZE]
21 Jan 2020, 7:10pm
At the moment I'm thinking of retaining the standard Z3 struts and using a prop of some sort. The front of the 275 with valance, stainless bumpers and grill is significant. I'm worried the hinged end of the bonnet structure could be stressed excessively. At least when using a prop some of the weight is taken at the front end.
21 Jan 2020, 10:29pm
Lucky@LeMans wrote:
At the moment I'm thinking of retaining the standard Z3 struts and using a prop of some sort. The front of the 275 with valance, stainless bumpers and grill is significant. I'm worried the hinged end of the bonnet structure could be stressed excessively. At least when using a prop some of the weight is taken at the front end.


I think you have a point there. Putting too much stress on the fibreglass May cause future problems
22 Jan 2020, 9:59am
My Daytona has a very heavy bonnet with a metal frame as well, normal stays would not hold it up. It has gas struts with locks, open the bonnet and it will "click" when fully open, to close lift it a little higher and it will "click" again allowing it to close. I have been told that these locking gas struts were fitted to early Range Rovers (P38?).
May well work for the heavier 275 bonnet.
22 Jan 2020, 11:25am
Jaguartvr wrote:
I have been told that these locking gas struts were fitted to early Range Rovers (P38?).


Locking gas struts were fitted to the bonnet of the Rover 820 I used to have.
2 Feb 2020, 5:10pm
I've ended up with a satisfactory solution by retaining the standard struts and making a bonnet stay prop. You end up with an assisted lift then slot the stay in place. The KISS method can always be relied upon !

Just need to sort my dead locked passenger door out, it won't open from inside or outside. The central locking works but won't unlock the door. Not sure what to try next, any advice out there ?
2 Feb 2020, 5:37pm
Lucky@LeMans wrote:
I've ended up with a satisfactory solution by retaining the standard struts and making a bonnet stay prop. You end up with an assisted lift then slot the stay in place. The KISS method can always be relied upon !

Just need to sort my dead locked passenger door out, it won't open from inside or outside. The central locking works but won't unlock the door. Not sure what to try next, any advice out there ?


Could you supply a pic of where you fixed the stay. Thinking of doing this myself
Thanks
6 Feb 2020, 11:08pm
The stay is made from 10mm round bar 37" long. One end has a round tube welded to it, that slots over the bonnet spring. The other end has a repair washer welded to it and sits in a hole on the slam panel.
6 Feb 2020, 11:09pm
Photo here ……..

Having issues loading photo's for some reason !