Thread: Low gas pressure?

Yep,
drove into town this morning, took 20 kays to switch over to gas, started to miss, pulled the bonnet and cold regulator!

Bloody Victoria!!
The friendly gas man has given me all the tee's and pipe and clamps to redo the heating system.
I thought it might be a good idea to route ALL the heater water through the reg,,
I just cant see how ANY water circulation will happen using Tee's in the heater pipes.
But the gas man says no.

just waiting for the engine bay to cool,,
shouldnt take long,, got down to 5 ()here last night,, only just 10 now

I thought this had been discussed once before and the answer was to T off the heater circuit, not put it in series. I haven't done a search for it though.

Some years ago I tee'd an injection converter off the P38 heater circuit and the result was a loss of heat output from the heater as the converter was a much shorter path and robbing the flow. I put a 6mm restrictor in the converter line to fix that one. Using 10mm hoses to the converter you might not need the restrictor. Full flow through the converter would be OK if the converter had large fittings and little restriction, older Commodores all ran full flow converters in series with the heater.

On mine the converter is over on the LHS of the engine bay, the heater points are on the RHS so the converter has a much longer flow path. The heater core is approx 10mm diameter tubing on a P38A.

I've never noticed a loss of heat but then I'm not in a very cold climate.

Originally Posted by Pedro_The_Swift

Bloody Victoria!!..........got down to 5 ()here last night,, only just 10 now

What do you mean? It's beautiful, fine and sunny. A pearler of a day.
It's a good job it cools off at night as it is quite warm during the day. I'm always looking for shade to stand in.

Originally Posted by p38arover

Do LPG vehicles blow black smoke when overfuelling with LPG?

No they dont so you cant use exhaust colour to determine if rich or lean.

Sent from my GT-I9300 using AULRO mobile app

Ok, so all done.
it switched over to gas in about 2 minutes.
didnt miss a beat on gas into town(20 Kays to Hamilton) and back. Needs a small coolant top up before tomorrows trip.
That new hose you can see on the left fits great and connects easy as to the reg, the closer of the two runs down and forward in a loop to the new alternator earth strap, then over the rear of the alt, under the two accelerator cables and then down under the air inlet ducting.
The previous heating hoses (throttle body hoses) have been rearranged, the outlet from the middle of the block has been turned 180 deg to the drivers side (one accelerator cable bracket bolt needs to be removed so the hose can be turned--) and joined to the catchtank hose. nice.

Originally Posted by loanrangie

No they dont so you cant use exhaust colour to determine if rich or lean.

With respect, that's only true in a narrow band of mixtures. When there is a fault and you're way over rich then soot is the result.