Hi All, well I've started the process of replacing my spark plugs due to the LPG issues and because I have no idea when they were last done..

I realised now why I want to replace the thermoblock gaskets that the last owner installed.
What should be a 20 minute job has turned into a leave it till tomorrow job..
There's sealant on both sides of the manifold gasket and TB gasket which I need to clean off the gaskets and engine parts.. another hours work and I CBF today.. there isn't heaps just a light film, but needs to be cleaned off none the less without letting it drop into the manifold..

Will the gaskets seal properly if I put them back on without sealant?

It is a good idea to used Sealant better to be safe than sorry

Bugger, well an hour later and I have the gaskets clean.. Now it's too late too keep going haha...
If only I didn't drive the car today and have to let it cool for 3.5 hours before I could start..

after all this I hope my mechanic was right when he said to replace all the plugs..
If not, I'll be off to get the gas tested.. unless he tells me to do the leads and dizzy..

May be worth checking / replacing if necessary the leads now whilst it's all apart otherwise there's more gasket sealant removal to look forward to. Probably worth checking the distributor cap & rotor button as well.

Mate, I told you that those gaskets are a waste of material, I do have the gaskets you need here so you do not need to bother about these stupid inventions

If I recall, you only had issues when running Gas, thus I would be getting gas tune first

Mate, I told you that those gaskets are a waste of material, I do have the gaskets you need here so you do not need to bother about these stupid inventions

If I recall, you only had issues when running Gas, thus I would be getting gas tune first

Yeah, I agree they're a waste.. And a pita
It's about a 3 hour drive to Ringwood so I might just make my way down to Mits and get new one's.
Can't get in for an LPG tune for about two weeks and I have to go to another town, I should have organised it while I was on leave lol..

The mechanic said it sounds like the ignition system as he said the LPG computer should adjust itself off the o2 sensor.

Wow, what a difference using the right plugs for LPG can make.

Shuddering clutch taking off on LPG = gone
Loss of power for a few seconds switching from LPG to petrol = gone

I noticed other things that obviously weren't right.

Gear changes up or down are smooth as now, no more shudder from 1st - 2nd in petrol or lpg.
The slight hesitation when putting the foot down after changing up gears is gone, gearing down doesn't seem so rough. The revs seem to climb a lot quicker and overall it feels like I have about 15% more power..

Old plugs were all standard heat range and gap size, new one's are colder and have a .8mm gap..

Now that that's solved I need to work out what all the front end rattle is on bumpy roads, though I suspect the cracked front engine mount could be the culprit there..