CSR Phill

I have fitted the new sensor to my CSR and with a bit of 'engineering' it does fit. It didn't solve my speedo problem [which reads zero all the time] but it does fit and pulses away fine with a 0.7mm gap. I sent the head unit to Speedy Cables who said it was duff, charged me almost the cost of a new one, returned it and it is still the same. Why are Caterham speedos so prone to failure?

Hi Malc, Problem solved, you need a special tool [which I made] and the job is done. Pity i butchered the caliper finding out

I dont think they are Ford, and are different to the de-dion rear brakes. The pads have VW/AUDI stamped on them. I tried all manner of ways to get the piston back in,including turning it, with no joy.

I always take the pads out of the car when i'ts gone to bed for winter. Trying to fit the pads back and one rear corner the caliper piston will not push back into the caliper. I've had it in bits [well you have to ..don't you] and its a very complicated auto adjusting multiseal piece of Kit. Should the piston just push back into the caliper or is there a trick i'm missing here? Anyone with any CSR rear brake experience [looks like they are VW AUDI in origin]

Yes the underbonnet gets hot and that can relate to high footwell temps and the exposed chassis tubes could take your skin off. However lagging the primaries solves the problem to a great extent. The only problem I have is I suspect the cooked electronics under the bonnet can give some strange problems ie. my car won't restart when hot.

Rumour has it that ...."and a new larger nose-complete with floor mounted chin, underside air intake and top air outlet duct to improve airflow -combine to reduce front end lift by 50%, which increases high-speed understeer" from the Caterham sales blerb.

OK that is probably my problem then. 18 psi cold is too low a pressure on a CSR. Thanks for your help guys. 8k miles and only half worn though I could do without spending the money. CR500s it is. Cheers

steve, Who recommended your pressures? i have heard so many variations I'm not sure whats correct!!

Relax Malc no one will blame you [much] The tyres in question have been in use for 3 years and are running at about 18psi. This is obviously too low, but its the pressure I was advised by a very reputable expert who set the suspension up for me.

I know this is an emotive subject but the CR500s on my CSR have seriously cracked side walls long before the tread wears out. Whats the recommended alternative? 195s at the front 245s at the rear [i think!] I want the grip of the CR500s but with a bit more durability.

When it goes, it's fine, runs well. just won't start again with a hot engine bay. If I take the bonnet off it resolves the problem more quickly. One thing I thought was that the fuel rail is at the highest point on the fuel system and the fuel could be vapourising with high temps. There is no bleed and no tank return on this engine. Immobiliser? hmm, I don't think its that, why would it be temperature related?

Thanks but I thought it may be a pump problem. You can here the pump running and it stops when up to pressure - still won't start though.

On hot days after a run, or following a session on track, my home built CSR200 will not restart until it's cooled down. The engine cranks over fine it just doesn't fire until its down to a temperature that it's happy with. It eventually starts and runs, no problem. Its a bit embarrassing by petrol pumps etc. I've changed the MFR [because its cheaper than the ECU!!] but no difference. Any bright ideas? We know the CSR's run hot under the bonnet [i've largely cured that by lagging the primary pipes] but it doesn't cut out when hot, it just won't restart.