Tuesday 10 November 2015

Build Day 14- Rear ARB, Rear End, and Handbrake

Day 14- Rear ARB, Rear Axle and Handbrake


Rear Anti-roll Bar


While dad was at work I decided to fit the rear anti roll bar, as it sounded as though it was either difficult to fit later or wouldn't go at all later on. Firstly the rubber bobbins went on easy enough with some silicone spray and some pulling, then I ignored the instructions about putting the bolts up through the chassis and bolted them down through so as to give an insurance measure in case the nylocs did work loose then the bolts wouldn't just fall out.


Parts required. Nice details on the ali mounts. 

Roll bar mounts fitted with bolts tightened down through the chassis.

Electronic gauge doesn't fit on the top so I calibrated one of the smaller torque wrenches.
In the end i couldn't finish the ARB fitment... this was due to the fact that we had not been supplied with the hexagonal spacer nut, which goes between the drop link and the de dion tube. 

(Turns out later on that Caterham do not do this anymore as the design has changed, so instead of the two drop link heads facing the same way, they face in opposite directions and bolt directly to the de dion mount and the ARB.) 

Propshaft


I then moved on to bolting the propshaft to the diff. Firstly I could only find 4, appropriately sized, cap heads not the bolts pictured. In order to stop the shaft from rotating I used to long screwdriver wrapped in a rag and inserted it through the universal joint. On my own it was only possible to get the screw driver through twice, on opposing sides, so I left the remaining two for when dad got home from work, so he could lock it from the top.

Shaft tied in place to stop scrapes appearing in the paintwork before the diff was installed. 

Screwdriver in place, more than enough to torque the bolts.

Hub Nuts


Yesterday we realised that the LH hub nut was too big to fit into the 41mm socket, so I filed down the edges of the nut until it fitted correctly.

Hub nut before.

Nut after.

Handbrake


When dad got home we got started together straight away, just to finish some bits and bobs. To start we fitted the handbrake, just a case of slotting it in, then through bolting the bracket. The bolts were a little tricky to get in as the brackets didn't align, but driving them through then tightening them pulled them into alignment.


A slight miss-alignment but went in after a little fiddling. 
We then attached the pulley link to the brake cable. We found loosening the adjuster a foot or so allowed enough slack to work on the lever and pulley, and attaching the rear pulley first, before the front. The pins proved a little difficult as the holes aren't quite large enough, so they had to be persuaded through with some pliers.

Handbrake Cable with no twist (all SV cars).


Split pins in, a tad tricky as there is little room to move hands in the tunnel.
Overview of handbrake.

Torquing Ears and Bearings


We then moved onto the rear end, where we decided to torque up the aluminium ears and the bearings. This proved trickier than expected as there is limited access to the heads, mostly because we insist on properly torquing bolts by only torquing the nut and not the bolt, as the bolt will stretch if torqued much, even at low figures. In order to get to the heads and get enough leverage on the bolts we chocked up the de dion tube with a plank of wood. Also it was impossible to got the socket on the bolts around the RH drive shaft because of the speedo splines, so we had to wedge some wood in between the splines and the ears in order to torque the bolts.  

Making room around the drive shaft.

De Dion wedged up for torquing.

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