Thread: 80" bonnet mounted spare

Can't be too rare, mine's got one!

Yep mines got one as well. 49/50 model

I've got two 80'' bonnets with wheel carriers, and both have got the 3/8'' clamp bolts, and not the 1/2" which were used from later SI models onwards.

Originally Posted by Lost Landy

Hi all iam thinking that a bonnet mounted spare mustnt be to common here as just about every 80" i have looked at latley dosnt have one, i have 4 80" and none have a bonnet mtd spare.
Does any one have any ideas?

would you be interested in parting with one of them?

The spare wheel support was an optional extra in the 80". Part number 231282 for 6.00 16 and 231588 for 7.00 16 the main difference being a block that went under the clamps. For 7.00 16 tyres if you use the later clamps with one long side then you don't need the block.

The weight of the spare wheel on the bonnet tends to fracture the little alloy supporting frame under the bonnet skin. I would be looking for a bonnet with the mount already fitted and keep the undamaged original bonnet as a spare.

Originally Posted by Lotz-A-Landies

The spare wheel support was an optional extra in the 80". Part number 231282 for 6.00 16 and 231588 for 7.00 16 the main difference being a block that went under the clamps. For 7.00 16 tyres if you use the later clamps with one long side then you don't need the block.

Lotza, are you able to confirm (or deny!) the part number 307235 being for the later model clamps to fit my 1958 109"? Once I find that bit out, I'll be trying to track down a pair.

TIA

Stu

I surpose I could take the spare mount of several 86,107 bonnets and use that on one of my 80" bonnets

Will check all the numbers when I get home.

The threads on the original supports frequently stripped out and hence the later type was often used as a replacement.

If you look in the Series 1 workshop manual there is a template for fitting the support and where to drill the large holes for the bolts to pass through.

They are recommended to be fitted with mushroom headed solid rivets as they are stronger than pop rivets. I have even seen them attached with self tapping screws, and I have also seen the whole support come away from the bonnet and the spare wheel depart the vehicle, particularly when fitted with pop rivets or screws.

There are also the rubber buffers, on the S1 they are rectangular and of two different heights. The thin ones for the centreline fore and aft of the support and the thick ones on either side of the support. Later models had the buffers mounted at 45 degrees to the support and were all of the same thickness.