climate control diagram?

[EricN]

Hey Wayne
Come by one night. I can look at it for you, I dont really need the schematics.
Green1, If I were you, pop off the upper timing cover and check the belt timing. If the timing is out then pull the valve cover and look for anything broken, put a socket on the crank pulley and try to turn the motor backwards.

[Green1]

If the timing is out

how does one tell if it is out?

[bae146]

If the timing is out

how does one tell if it is out?

Remove the plastic shroud covering the timing belts and look at the timing marks to see if they line up. The engine manual has some good pictures......

[thelazybrownfox]

Eric
Thanks. I'll phone you one evening this week.
Wayne

[bae146]

Hey Wayne
Come by one night. I can look at it for you, I dont really need the schematics.
Green1, If I were you, pop off the upper timing cover and check the belt timing. If the timing is out then pull the valve cover and look for anything broken, put a socket on the crank pulley and try to turn the motor backwards.

I thought on this engine you were to never turn it backwards? So says the manual, Right next to the big bold CAUTION statement.........

[EricN]

It wont turn over with the starter, how much more damage are you expecting by turning it backwards.

[stef38]

hello
i'm also after a wiring diagram for a delica L300 aircon system.
Same trouble as you, the compressor won't engage when the a/c button is switched on, i hooked it directly to the battery, plugged in manifold gauges, all pressures are fine.
so maybe the low pressure switch is gone, or what else?
thanks in advance if you have a diagram, or a good typ
cheers stef

[thelazybrownfox]

steph38
I assume the compressor did engage when you jumpered it from the battery? I also assume you had the front control on cool not heat and the front fan was turned on high??? Put a thermometer in the air vent and see if the temp drops at all. This indicates evaporator operation. Simple things but....

Did both of the front A/C fans run? Main condenser and front A/C radiator (pass side front) fans should engage. Thats where the L.P.S. is located.

If you have low and high side pressure you can't remove the L.P.S. without losing your charge and you can't test the L.P.S.. I removed, pressured mine and proved operation but I had no refridgerant charge. I can't remember if you can test for voltage at both sides of the switch but hopefully you don't have to get to that point. Members help me out here.

You also have a H.P.S. at the rear A/C unit. It will be tripped if your system is overpressured.
An easy continuity test determines it's operation. An overspeed switch tied to the accelerator should reset but could be problematic.

Dash wiring is an enigma, poorly located and difficult to test w/o a wiring or schematic diagram. Check out the wiring on the wiki. It can give some logic to the system. Nobody has responded to wiring diagram request for the A/C system yet. Good luck!

Wayne

[stef38]

hello thanks for your answer.
actually i have spend yesterday stripping of the car, to understand the wiring, and finally found a cut wire just in the back of the battery tray.
it was a brown big wire, i think the main supply for the aircon.
since i repaired it, the system works , both fans work etc.
i also found a faulty fuse.
the air coming out is very cold, i only added a can of hr12, which means the system didn't loose much in 21 years!
cheers
stef