Chummy questions - front seats. Rear number plate hoop

[Bill Sheehan]

To help with progress on my rat look chummy. 

Can anyone help me by providing a picture of how the front seats should bolt onto the floor on a chummy? 

I suspect strongly the seats I have are not 'chummy' items, nevertheless im missing the connecty bit so some pictures of the pukka items will be of great help. The floor seems to be a bit different from my saloons. And in anycase I know the seats in my RL are ruby ones as they are too wide.

Also can anyone suggest a dimention to set the number plate hoop on the back of the car? Say a dim from the bottom corner of the body to the inside of the hoop. I want to be able to get the spare wheel off, but I want to keep the overhang to a minimum. 

Progress at present. I hope to be driving round in it this time next month



Many thanks in advance.

Hi Hedd - the seats were never bolted to the floor on any model Chummy.  They sat on the top of the (vertical) transverse struts that joined the tunnel to the panel next to the door. With the the early ones the extra piece on top of the tunnel acted as a slide for the bottom inner edge of the seat frame.  The outer bottom inner- edge of the seat frame was held to the panel which joined the seat struts, next to the door piece.  This piece had a  u-shaped bracket which could be swung inwards to release it's hold on the bottom seat flange.   It had a 1/4" hole and the seat frame lower flange had three  (sometimes 4) holes.  When adjusting your seat to suit, you dropped into the aligned holes a pin with a finger loop to locate.  When in 1925 the nearside was made to tilt, the seat frame was held by two hinges on the top of the front strut, the tunnel piece was different (i.e. flattened to allow that seat to lift).  Note that it was originally only on the one seat, not on both as claimed in many publications.  It was not until '29/30 that both seats could be hinged forward, thus altering the central tunnel piece again, which is relevant in your case.  If you have early copies of the Grey Mag you'll find drawings of the four seat hinges, which you can easily make.   Good Luck, Cheers,  Bill