delrazor's (derek's) LWB '80 cf

[ben]

It feels like the converter solenoid is turning on then straight off again (split second). There is no gas at all getting to the carb.
I don't really have the budget for a specialist right now. Nor do I want to mess with gas.

gas is safer than pertol.. you have at least 2 shut off valves in a gas system sometimes 3.. tanks are double skinned also people tell me.. if your not prepared to muck around and fix it i guess youll be running on petrol for a while:)

ben

[delrazor]

I've been mucking around with it all day.
I noticed there was no vacuum at all at the mixer when I pulled the hose off the carb. I blocked up the air filter, sealed everything and it gave a little suction, but still didn't work. Looks like the converter might be stuffed.

never mind.

derek

[Rocket]

There should be a wire from the gas control module to the dizzy. This is there so that if the motor is not running it shuts off the gas. So when you crank the motor over a solenoid should open because the module senses the pulses from the dizzy. No pulses, no open , no start. All solenoids open at least momentarily when you first turn on the ignition.

[delrazor]

Thanks Rocket, I'll have a snoop tomorrow.

Now I have an oil leak from the rear (well dripping from the rear anyway) of the gearbox (borg 5 sp)
I'll clean it up and see where it comes from tomorrow aswell.

derek

[SkippyThBushKangeroo]

the big blue thing in th piccy of your converter is the primer, wen u turn the ignition on u should hear a hissing sound for bout  3 or so seconds then a click as it turns off, this forces gas into the pipe runnin to the mixer on top of yor carby so there it something there for the engine to fire on. no hisss /click means the primer isnt workin. i would suss the safety switch box or gas lockoffs first with th description u gave . should be two lockoffs, one where the gas line first comes outta the tank, an the other at the end of the line just before it goes into the converter. they usually are earthed by its mounting bracket, so should only be one wire running to each from the safety switch, to lockoff with a spade connecter on end of wire. with ignition on, and  changeover switch set to gas , pull the spade off the lockoff then reconnect it , you should hear a slight click as the lockoff opens do it several times if u can hear them opening their ok , so then suss out the safety switch usually a small black box mounted in the engine bay with wires running from it , they have their own earth as well, which runs to the body ,often connected to the screw at the mounting point of the black box itself .check that it is tight an secure an that the black box itself is not loose an movable, as sometimes it does work loose, which will not earth it properly an will render the whole system inoperable.quite often safety switches are the prob, which is why it is advisable to always carry a spare if pos in the ol tool box. converters only usually stuff up by allowing gas or water to start leaking outta them . check all wiring connections as a loose one can also cause probs. hope this helps razor skipppy

[delrazor]

great stuff Skip.
This will keep me busy while the baby is asleep.
THe safety switch part is confusing me. I followed the wires from the selector switch and the y go through the firewall and go their separate ways in the bay to their various destinations. No sign of any black box. Do they ever make the switch and hte safety switch in the same box (in the dash)?

cheers
derek

[delrazor]

Another lucky break for me. I took it to a mechanic that a mate recommended an he traced the problem - earth strap faulty.
For 120 bucks he found the problem, fixed it, put it on the dyno, dialled in the mixture, checked the gearbox oil leak and filled the gearbox with oil.
All without a booking and while I waited.

Take a bow those who said check the earths.

Next to deal with the oil leak from the gearbox and replace a front indicator lense and I'm ready for the RWC.

derek

ps. any known common issues (read quick fix) for the 5 speed borg warner gearbox. The oil is coming from quite high in the box on the left hand side. Most likely from the join between the main box and the extention at the rear.

[ben]

glad you got it fixed derek.. coming together coming together..

ben

[John Abbott]

Hang in there Derek...Another Beddie nearly on the road

[delrazor]

Thanks lads.
Now the gas is working my next mission is to sort out the air filter/hose situation.
The alloy elbow is just sitting over the carb mouth . The play is around 2mm which is filled with silicone. I would just use a hose except for the fact there is a gas mixer poking through the alloy elbow.
It is a stromberg carb on a 202. Any ideas on how to assemble this correctly?